mirror of
https://github.com/reactos/reactos.git
synced 2024-12-28 10:04:49 +00:00
993 lines
30 KiB
C
993 lines
30 KiB
C
/*
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* PROJECT: ReactOS Magnify
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* LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
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* PURPOSE: Magnification of parts of the screen.
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* COPYRIGHT: Copyright 2007-2019 Marc Piulachs <marc.piulachs@codexchange.net>
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* Copyright 2015-2019 David Quintana <gigaherz@gmail.com>
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*/
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/* TODO: Support AppBar types other than ABE_TOP */
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#include "magnifier.h"
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#include <winbase.h>
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#include <winuser.h>
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#include <wingdi.h>
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#include <winnls.h>
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#include <commctrl.h>
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#include <shellapi.h>
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#include <windowsx.h>
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#include <stdlib.h>
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#include <tchar.h>
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#include "resource.h"
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#define APPMSG_NOTIFYICON (WM_APP+1)
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#define APPMSG_APPBAR (WM_APP+2)
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const TCHAR szWindowClass[] = TEXT("MAGNIFIER");
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/* Global Variables */
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HINSTANCE hInst;
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HWND hMainWnd;
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#define MAX_LOADSTRING 100
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TCHAR szTitle[MAX_LOADSTRING];
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#define TIMER_SPEED 1
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#define REPAINT_SPEED 100
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DWORD lastTicks = 0;
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HWND hDesktopWindow = NULL;
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NOTIFYICONDATA nid;
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HICON notifyIcon;
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HMENU notifyMenu;
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HWND hOptionsDialog;
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BOOL bOptionsDialog = FALSE;
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BOOL bRecreateOffscreenDC = TRUE;
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LONG sourceWidth = 0;
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LONG sourceHeight = 0;
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HDC hdcOffscreen = NULL;
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HBITMAP hbmpOffscreen = NULL;
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HANDLE hbmpOld;
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POINT ptDragOffset;
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INT nearEdge;
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/* Current magnified area */
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POINT cp;
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/* Last positions */
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POINT pMouse;
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POINT pCaret;
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POINT pFocus;
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HWND pCaretWnd;
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HWND pFocusWnd;
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ATOM MyRegisterClass(HINSTANCE hInstance);
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BOOL InitInstance(HINSTANCE, int);
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LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
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INT_PTR CALLBACK AboutProc(HWND, UINT, WPARAM, LPARAM);
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INT_PTR CALLBACK OptionsProc(HWND, UINT, WPARAM, LPARAM);
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INT_PTR CALLBACK WarningProc(HWND, UINT, WPARAM, LPARAM);
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int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
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{
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MSG msg;
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HACCEL hAccelTable;
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INITCOMMONCONTROLSEX iccex;
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UNREFERENCED_PARAMETER(hPrevInstance);
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UNREFERENCED_PARAMETER(lpCmdLine);
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switch (GetUserDefaultUILanguage())
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{
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case MAKELANGID(LANG_HEBREW, SUBLANG_DEFAULT):
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SetProcessDefaultLayout(LAYOUT_RTL);
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break;
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default:
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break;
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}
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/* Initialize global strings */
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LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
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MyRegisterClass(hInstance);
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/* Perform application initialization */
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if (!InitInstance(hInstance, nCmdShow))
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return FALSE;
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hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_MAGNIFIER));
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/* Main message loop */
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while (GetMessage(&msg, NULL, 0, 0))
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{
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if (!TranslateAccelerator(hMainWnd, hAccelTable, &msg))
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{
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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}
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/* Load the common controls */
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iccex.dwSize = sizeof(INITCOMMONCONTROLSEX);
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iccex.dwICC = ICC_STANDARD_CLASSES | ICC_WIN95_CLASSES;
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InitCommonControlsEx(&iccex);
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SelectObject(hdcOffscreen, hbmpOld);
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DeleteObject (hbmpOffscreen);
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DeleteDC(hdcOffscreen);
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return (int) msg.wParam;
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}
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ATOM MyRegisterClass(HINSTANCE hInstance)
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{
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WNDCLASS wc;
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wc.style = CS_HREDRAW | CS_VREDRAW;
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wc.lpfnWndProc = WndProc;
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wc.cbClsExtra = 0;
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wc.cbWndExtra = 0;
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wc.hInstance = hInstance;
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wc.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON));
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wc.hCursor = LoadCursor(NULL, IDC_ARROW);
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wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
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wc.lpszMenuName = NULL; //MAKEINTRESOURCE(IDC_MAGNIFIER);
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wc.lpszClassName = szWindowClass;
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return RegisterClass(&wc);
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}
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void DoAppBarStuff(DWORD mode)
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{
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UINT uState;
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APPBARDATA data = {0};
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data.cbSize = sizeof(data);
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data.hWnd = hMainWnd;
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data.uCallbackMessage = APPMSG_APPBAR;
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if (mode == ABM_NEW || mode == ABM_SETPOS)
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{
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HWND hWndOrder = HWND_BOTTOM;
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int rcw, rch;
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RECT rcWorkArea;
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SystemParametersInfo(SPI_GETWORKAREA, 0, &rcWorkArea, 0);
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if (mode == ABM_NEW)
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{
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SHAppBarMessage(ABM_NEW, &data);
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switch(AppBarConfig.uEdge)
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{
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case ABE_LEFT:
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data.rc.top = rcWorkArea.top;
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data.rc.bottom = rcWorkArea.bottom;
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data.rc.left = rcWorkArea.left;
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data.rc.right = data.rc.left + AppBarConfig.appBarSizes.left;
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break;
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case ABE_TOP:
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data.rc.left = rcWorkArea.left;
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data.rc.right = rcWorkArea.right;
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data.rc.top = rcWorkArea.top;
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data.rc.bottom = data.rc.top + AppBarConfig.appBarSizes.top;
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break;
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case ABE_RIGHT:
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data.rc.top = rcWorkArea.top;
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data.rc.bottom = rcWorkArea.bottom;
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data.rc.right = rcWorkArea.left;
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data.rc.left = data.rc.right - AppBarConfig.appBarSizes.right;
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break;
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case ABE_BOTTOM:
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data.rc.left = rcWorkArea.left;
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data.rc.right = rcWorkArea.right;
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data.rc.bottom = rcWorkArea.bottom;
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data.rc.top = data.rc.bottom - AppBarConfig.appBarSizes.bottom;
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break;
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}
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}
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else
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{
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GetWindowRect(hMainWnd, &data.rc);
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}
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data.uEdge = AppBarConfig.uEdge;
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uState = SHAppBarMessage(ABM_QUERYPOS, &data);
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uState = SHAppBarMessage(ABM_SETPOS, &data);
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rcw = data.rc.right-data.rc.left;
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rch = data.rc.bottom-data.rc.top;
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uState = SHAppBarMessage(ABM_GETSTATE, &data);
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if (uState & ABS_ALWAYSONTOP)
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hWndOrder = HWND_TOPMOST;
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SetWindowPos(hMainWnd, hWndOrder, data.rc.left, data.rc.top, rcw, rch, SWP_SHOWWINDOW | SWP_NOCOPYBITS);
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}
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else if (mode == ABM_GETSTATE)
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{
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HWND hWndOrder = HWND_BOTTOM;
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uState = SHAppBarMessage(ABM_GETSTATE, &data);
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if (uState & ABS_ALWAYSONTOP)
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hWndOrder = HWND_TOPMOST;
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SetWindowPos(hMainWnd, hWndOrder, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE);
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}
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else if (mode == ABM_ACTIVATE)
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{
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SHAppBarMessage(ABM_ACTIVATE, &data);
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}
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else if (mode == ABM_WINDOWPOSCHANGED)
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{
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SHAppBarMessage(ABM_WINDOWPOSCHANGED, &data);
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}
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else if (mode == ABM_REMOVE)
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{
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SHAppBarMessage(ABM_REMOVE, &data);
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}
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}
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void AttachAppBar(INT uEdge)
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{
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if (AppBarConfig.uEdge == uEdge)
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return;
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if (AppBarConfig.uEdge < 0 && uEdge >= 0)
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{
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SetWindowLongPtr(hMainWnd, GWL_STYLE, GetWindowLongPtr(hMainWnd, GWL_STYLE) & (~WS_CAPTION));
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}
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else if (uEdge < 0 && AppBarConfig.uEdge >= 0)
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{
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SetWindowLongPtr(hMainWnd, GWL_STYLE, GetWindowLongPtr(hMainWnd, GWL_STYLE) | WS_CAPTION);
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SetWindowPos(hMainWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE|SWP_FRAMECHANGED);
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}
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if (AppBarConfig.uEdge >= 0)
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{
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DoAppBarStuff(ABM_REMOVE);
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}
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if (uEdge >= 0)
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{
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AppBarConfig.uEdge = uEdge;
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DoAppBarStuff(ABM_NEW);
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}
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else
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{
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RECT rc = AppBarConfig.rcFloating;
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SetWindowPos(hMainWnd, HWND_TOPMOST, rc.left, rc.top, rc.right-rc.left, rc.bottom-rc.top, 0);
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}
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AppBarConfig.uEdge = uEdge;
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}
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BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
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{
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RECT rc;
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DWORD exStyles = WS_EX_TOOLWINDOW | WS_EX_CONTROLPARENT;
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DWORD dwStyles = WS_SIZEBOX | WS_SYSMENU | WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_POPUP;
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/* Load settings from registry */
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LoadSettings();
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rc = AppBarConfig.rcFloating;
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hInst = hInstance; // Store instance handle in our global variable
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if (AppBarConfig.uEdge <0 )
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{
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dwStyles |= WS_CAPTION;
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exStyles |= WS_EX_TOPMOST;
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}
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/* Create the Window */
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hMainWnd = CreateWindowEx(exStyles,
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szWindowClass,
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szTitle,
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dwStyles,
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rc.left,
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rc.top,
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rc.right-rc.left,
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rc.bottom-rc.top,
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NULL,
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NULL,
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hInstance,
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NULL);
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if (!hMainWnd)
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return FALSE;
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if (AppBarConfig.uEdge >= 0)
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DoAppBarStuff(ABM_NEW);
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else
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SetWindowPos(hMainWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
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// In Windows 2003's Magnifier, the "Start Minimized" setting
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// refers exclusively to the options dialog, not the main window itself.
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hOptionsDialog = CreateDialog(hInstance, MAKEINTRESOURCE(IDD_DIALOGOPTIONS), hMainWnd, OptionsProc);
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ShowWindow(hOptionsDialog, (bStartMinimized ? SW_HIDE : SW_SHOW));
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if (bShowWarning)
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DialogBox(hInstance, MAKEINTRESOURCE(IDD_WARNINGDIALOG), hMainWnd, WarningProc);
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return TRUE;
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}
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void Refresh(void)
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{
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if (!IsIconic(hMainWnd))
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{
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/* Invalidate the client area forcing a WM_PAINT message */
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InvalidateRgn(hMainWnd, NULL, TRUE);
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}
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}
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void GetBestOverlapWithMonitors(LPRECT rect)
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{
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int rcLeft, rcTop;
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int rcWidth, rcHeight;
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RECT rcMon;
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HMONITOR hMon = MonitorFromRect(rect, MONITOR_DEFAULTTONEAREST);
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MONITORINFO info;
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info.cbSize = sizeof(info);
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GetMonitorInfo(hMon, &info);
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rcMon = info.rcMonitor;
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rcLeft = rect->left;
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rcTop = rect->top;
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rcWidth = (rect->right - rect->left);
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rcHeight = (rect->bottom - rect->top);
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if (rcLeft < rcMon.left)
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rcLeft = rcMon.left;
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if (rcTop < rcMon.top)
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rcTop = rcMon.top;
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if (rcLeft > (rcMon.right - rcWidth))
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rcLeft = (rcMon.right - rcWidth);
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if (rcTop > (rcMon.bottom - rcHeight))
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rcTop = (rcMon.bottom - rcHeight);
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OffsetRect(rect, (rcLeft-rect->left), (rcTop-rect->top));
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}
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void Draw(HDC aDc)
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{
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HDC desktopHdc = NULL;
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RECT sourceRect, intersectedRect;
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RECT targetRect, appRect;
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DWORD rop = SRCCOPY;
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CURSORINFO cinfo;
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ICONINFO iinfo;
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int AppWidth, AppHeight;
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if (bInvertColors)
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rop = NOTSRCCOPY;
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desktopHdc = GetDC(0);
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GetClientRect(hMainWnd, &appRect);
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AppWidth = (appRect.right - appRect.left);
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AppHeight = (appRect.bottom - appRect.top);
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ZeroMemory(&cinfo, sizeof(cinfo));
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ZeroMemory(&iinfo, sizeof(iinfo));
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cinfo.cbSize = sizeof(cinfo);
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GetCursorInfo(&cinfo);
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GetIconInfo(cinfo.hCursor, &iinfo);
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targetRect = appRect;
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ClientToScreen(hMainWnd, (POINT*)&targetRect.left);
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ClientToScreen(hMainWnd, (POINT*)&targetRect.right);
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if (bRecreateOffscreenDC || !hdcOffscreen)
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{
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bRecreateOffscreenDC = FALSE;
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if (hdcOffscreen)
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{
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SelectObject(hdcOffscreen, hbmpOld);
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DeleteObject (hbmpOffscreen);
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DeleteDC(hdcOffscreen);
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}
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sourceWidth = AppWidth / uiZoom;
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sourceHeight = AppHeight / uiZoom;
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/* Create a memory DC compatible with client area DC */
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hdcOffscreen = CreateCompatibleDC(desktopHdc);
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/* Create a bitmap compatible with the client area DC */
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hbmpOffscreen = CreateCompatibleBitmap(desktopHdc,
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sourceWidth,
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sourceHeight);
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/* Select our bitmap in memory DC and save the old one */
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hbmpOld = SelectObject(hdcOffscreen, hbmpOffscreen);
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}
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GetWindowRect(hDesktopWindow, &sourceRect);
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sourceRect.left = (cp.x) - (sourceWidth /2);
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sourceRect.top = (cp.y) - (sourceHeight /2);
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sourceRect.right = sourceRect.left + sourceWidth;
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sourceRect.bottom = sourceRect.top + sourceHeight;
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GetBestOverlapWithMonitors(&sourceRect);
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/* Paint the screen bitmap to our in memory DC */
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BitBlt(hdcOffscreen,
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0,
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0,
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sourceWidth,
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sourceHeight,
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desktopHdc,
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sourceRect.left,
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sourceRect.top,
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rop);
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if (IntersectRect(&intersectedRect, &sourceRect, &targetRect))
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{
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OffsetRect(&intersectedRect, -sourceRect.left, -sourceRect.top);
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FillRect(hdcOffscreen, &intersectedRect, GetStockObject(DC_BRUSH));
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}
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/* Draw the mouse pointer in the right position */
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DrawIcon(hdcOffscreen,
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pMouse.x - iinfo.xHotspot - sourceRect.left, // - 10,
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pMouse.y - iinfo.yHotspot - sourceRect.top, // - 10,
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cinfo.hCursor);
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/* Blast the stretched image from memory DC to window DC */
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StretchBlt(aDc,
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0,
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0,
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AppWidth,
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AppHeight,
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hdcOffscreen,
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0,
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0,
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sourceWidth,
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sourceHeight,
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SRCCOPY | NOMIRRORBITMAP);
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/* Cleanup */
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if (iinfo.hbmMask)
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DeleteObject(iinfo.hbmMask);
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if (iinfo.hbmColor)
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DeleteObject(iinfo.hbmColor);
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ReleaseDC(hDesktopWindow, desktopHdc);
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}
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void HandleNotifyIconMessage(HWND hWnd, WPARAM wParam, LPARAM lParam)
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{
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POINT pt;
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switch(lParam)
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{
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case WM_LBUTTONUP:
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PostMessage(hMainWnd, WM_COMMAND, IDM_OPTIONS, 0);
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break;
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case WM_RBUTTONUP:
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GetCursorPos(&pt);
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TrackPopupMenu(notifyMenu, 0, pt.x, pt.y, 0, hWnd, NULL);
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break;
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}
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}
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LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
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{
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int wmId;
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switch (message)
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{
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case WM_TIMER:
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{
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BOOL hasMoved = FALSE;
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GUITHREADINFO guiInfo;
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guiInfo.cbSize = sizeof(guiInfo);
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GetGUIThreadInfo(0, &guiInfo);
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if (bFollowMouse)
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{
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POINT pNewMouse;
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//Get current mouse position
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GetCursorPos (&pNewMouse);
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#define PointsAreEqual(pt1, pt2) (((pt1).x == (pt2).x) && ((pt1).y == (pt2).y))
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//If mouse has moved ...
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if (!PointsAreEqual(pMouse, pNewMouse))
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{
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//Update to new position
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pMouse = pNewMouse;
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cp = pNewMouse;
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hasMoved = TRUE;
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}
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}
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if (guiInfo.hwndActive != hMainWnd)
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{
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if (bFollowCaret)
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{
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if (guiInfo.hwndCaret)
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{
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POINT ptCaret;
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ptCaret.x = (guiInfo.rcCaret.left + guiInfo.rcCaret.right) / 2;
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ptCaret.y = (guiInfo.rcCaret.top + guiInfo.rcCaret.bottom) / 2;
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if ((pCaretWnd != guiInfo.hwndCaret) || !PointsAreEqual(pCaret, ptCaret))
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{
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//Update to new position
|
|
pCaret = ptCaret;
|
|
pCaretWnd = guiInfo.hwndCaret;
|
|
if (!hasMoved)
|
|
{
|
|
ClientToScreen (guiInfo.hwndCaret, (LPPOINT) &ptCaret);
|
|
cp = ptCaret;
|
|
hasMoved = TRUE;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
pCaretWnd = NULL;
|
|
}
|
|
}
|
|
|
|
if (bFollowFocus)
|
|
{
|
|
if (guiInfo.hwndFocus && !guiInfo.hwndCaret)
|
|
{
|
|
POINT ptFocus;
|
|
RECT activeRect;
|
|
|
|
//Get current control focus
|
|
GetWindowRect(guiInfo.hwndFocus, &activeRect);
|
|
ptFocus.x = (activeRect.left + activeRect.right) / 2;
|
|
ptFocus.y = (activeRect.top + activeRect.bottom) / 2;
|
|
|
|
if ((guiInfo.hwndFocus != pFocusWnd) || !PointsAreEqual(pFocus, ptFocus))
|
|
{
|
|
//Update to new position
|
|
pFocus = ptFocus;
|
|
pFocusWnd = guiInfo.hwndFocus;
|
|
if (!hasMoved)
|
|
{
|
|
cp = ptFocus;
|
|
hasMoved = TRUE;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
pFocusWnd = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!hasMoved)
|
|
{
|
|
DWORD newTicks = GetTickCount();
|
|
DWORD elapsed = (newTicks - lastTicks);
|
|
if (elapsed > REPAINT_SPEED)
|
|
{
|
|
hasMoved = TRUE;
|
|
}
|
|
}
|
|
|
|
if (hasMoved)
|
|
{
|
|
lastTicks = GetTickCount();
|
|
Refresh();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
case WM_COMMAND:
|
|
{
|
|
wmId = LOWORD(wParam);
|
|
/* Parse the menu selections */
|
|
switch (wmId)
|
|
{
|
|
case IDM_OPTIONS:
|
|
ShowWindow(hOptionsDialog, (bOptionsDialog ? SW_HIDE : SW_SHOW));
|
|
break;
|
|
case IDM_ABOUT:
|
|
DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, AboutProc);
|
|
break;
|
|
case IDM_EXIT:
|
|
DestroyWindow(hWnd);
|
|
break;
|
|
default:
|
|
return DefWindowProc(hWnd, message, wParam, lParam);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
case WM_PAINT:
|
|
{
|
|
PAINTSTRUCT PaintStruct;
|
|
HDC dc;
|
|
dc = BeginPaint(hWnd, &PaintStruct);
|
|
Draw(dc);
|
|
EndPaint(hWnd, &PaintStruct);
|
|
return 0;
|
|
}
|
|
|
|
case WM_CONTEXTMENU:
|
|
TrackPopupMenu(notifyMenu, 0, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam), 0, hWnd, NULL);
|
|
return 0;
|
|
|
|
case WM_LBUTTONDOWN:
|
|
{
|
|
RECT rc;
|
|
POINT pt;
|
|
SetCapture(hWnd);
|
|
|
|
GetCursorPos(&pt);
|
|
GetWindowRect(hWnd, &rc);
|
|
ptDragOffset.x = pt.x - rc.left;
|
|
ptDragOffset.y = pt.y - rc.top;
|
|
|
|
nearEdge = AppBarConfig.uEdge;
|
|
|
|
break;
|
|
}
|
|
|
|
case WM_MOUSEMOVE:
|
|
if (GetCapture() == hWnd)
|
|
{
|
|
RECT rc;
|
|
POINT pt;
|
|
RECT rcWorkArea;
|
|
SystemParametersInfo(SPI_GETWORKAREA, 0, &rcWorkArea, 0);
|
|
GetCursorPos(&pt);
|
|
GetWindowRect(hWnd, &rc);
|
|
|
|
if (AppBarConfig.uEdge >= 0)
|
|
{
|
|
if (pt.x >= rcWorkArea.left && pt.x <= rcWorkArea.right &&
|
|
pt.y >= rcWorkArea.top && pt.y <= rcWorkArea.bottom)
|
|
{
|
|
AttachAppBar(-2);
|
|
|
|
// Fixup offset
|
|
GetWindowRect(hWnd, &rc);
|
|
ptDragOffset.x = (rc.right-rc.left)/2;
|
|
ptDragOffset.y = 2;
|
|
|
|
rc.left = pt.x - ptDragOffset.x;
|
|
rc.top = pt.y - ptDragOffset.y;
|
|
|
|
SetWindowPos(hWnd, HWND_TOPMOST, rc.left, rc.top, 0, 0, SWP_NOSIZE);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (pt.x <= rcWorkArea.left+8 && nearEdge != ABE_LEFT)
|
|
{
|
|
AttachAppBar(ABE_LEFT);
|
|
nearEdge = ABE_LEFT;
|
|
}
|
|
else if (pt.y <= rcWorkArea.top+8 && nearEdge != ABE_TOP)
|
|
{
|
|
AttachAppBar(ABE_TOP);
|
|
nearEdge = ABE_TOP;
|
|
}
|
|
else if (pt.x >= rcWorkArea.right-8 && nearEdge != ABE_RIGHT)
|
|
{
|
|
AttachAppBar(ABE_RIGHT);
|
|
nearEdge = ABE_RIGHT;
|
|
}
|
|
else if (pt.y >= rcWorkArea.bottom-8 && nearEdge != ABE_BOTTOM)
|
|
{
|
|
AttachAppBar(ABE_BOTTOM);
|
|
nearEdge = ABE_BOTTOM;
|
|
}
|
|
else
|
|
{
|
|
rc.left = pt.x - ptDragOffset.x;
|
|
rc.top = pt.y - ptDragOffset.y;
|
|
|
|
SetWindowPos(hWnd, HWND_TOPMOST, rc.left, rc.top, 0, 0, SWP_NOSIZE);
|
|
nearEdge = -1;
|
|
}
|
|
}
|
|
|
|
pMouse = pt;
|
|
Refresh();
|
|
}
|
|
break;
|
|
|
|
case WM_LBUTTONUP:
|
|
if (GetCapture() == hWnd)
|
|
{
|
|
if (AppBarConfig.uEdge >= 0)
|
|
DoAppBarStuff(ABM_GETSTATE);
|
|
else
|
|
SetWindowPos(hWnd, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE);
|
|
ReleaseCapture();
|
|
}
|
|
break;
|
|
|
|
case WM_SIZE:
|
|
if (AppBarConfig.uEdge >= 0)
|
|
DoAppBarStuff(ABM_SETPOS);
|
|
/* fallthrough */
|
|
case WM_DISPLAYCHANGE:
|
|
bRecreateOffscreenDC = TRUE;
|
|
Refresh();
|
|
break;
|
|
|
|
case WM_ERASEBKGND:
|
|
// handle WM_ERASEBKGND by simply returning non-zero because we did all the drawing in WM_PAINT.
|
|
return 0;
|
|
|
|
case WM_DESTROY:
|
|
{
|
|
if (AppBarConfig.uEdge >= 0)
|
|
DoAppBarStuff(ABM_REMOVE);
|
|
|
|
KillTimer(hWnd, 1);
|
|
|
|
/* Save settings to registry */
|
|
SaveSettings();
|
|
|
|
/* Cleanup notification icon */
|
|
ZeroMemory(&nid, sizeof(nid));
|
|
nid.cbSize = sizeof(nid);
|
|
nid.uFlags = NIF_MESSAGE;
|
|
nid.hWnd = hWnd;
|
|
nid.uCallbackMessage = APPMSG_NOTIFYICON;
|
|
Shell_NotifyIcon(NIM_DELETE, &nid);
|
|
DestroyIcon(notifyIcon);
|
|
|
|
DestroyWindow(hOptionsDialog);
|
|
|
|
PostQuitMessage(0);
|
|
return 0;
|
|
}
|
|
|
|
case WM_CREATE:
|
|
{
|
|
HMENU tempMenu;
|
|
|
|
/* Get the desktop window */
|
|
hDesktopWindow = GetDesktopWindow();
|
|
|
|
/* Set the timer */
|
|
SetTimer(hWnd, 1, TIMER_SPEED, NULL);
|
|
|
|
/* Notification icon */
|
|
notifyIcon = (HICON)LoadImage(hInst, MAKEINTRESOURCE(IDI_ICON), IMAGE_ICON, 16, 16, 0);
|
|
|
|
ZeroMemory(&nid, sizeof(nid));
|
|
nid.cbSize = sizeof(nid);
|
|
nid.uFlags = NIF_ICON | NIF_MESSAGE;
|
|
nid.hWnd = hWnd;
|
|
nid.uCallbackMessage = APPMSG_NOTIFYICON;
|
|
nid.hIcon = notifyIcon;
|
|
Shell_NotifyIcon(NIM_ADD, &nid);
|
|
|
|
tempMenu = LoadMenu(hInst, MAKEINTRESOURCE(IDC_MAGNIFIER));
|
|
notifyMenu = GetSubMenu(tempMenu, 0);
|
|
RemoveMenu(tempMenu, 0, MF_BYPOSITION);
|
|
DestroyMenu(tempMenu);
|
|
return 0;
|
|
}
|
|
|
|
case APPMSG_APPBAR:
|
|
{
|
|
switch (wParam)
|
|
{
|
|
case ABN_STATECHANGE:
|
|
DoAppBarStuff(ABM_GETSTATE);
|
|
break;
|
|
case ABN_POSCHANGED:
|
|
DoAppBarStuff(ABM_SETPOS);
|
|
break;
|
|
case ABN_FULLSCREENAPP:
|
|
{
|
|
if (!lParam)
|
|
{
|
|
DoAppBarStuff(ABM_GETSTATE);
|
|
break;
|
|
}
|
|
|
|
SetWindowPos(hMainWnd, HWND_BOTTOM, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE);
|
|
break;
|
|
}
|
|
case ABN_WINDOWARRANGE:
|
|
ShowWindow(hMainWnd, (lParam ? SW_HIDE : SW_SHOW));
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
case APPMSG_NOTIFYICON:
|
|
HandleNotifyIconMessage(hWnd, wParam, lParam);
|
|
return 0;
|
|
|
|
case WM_ACTIVATE:
|
|
if (AppBarConfig.uEdge >= 0)
|
|
DoAppBarStuff(ABM_ACTIVATE);
|
|
break;
|
|
|
|
case WM_WINDOWPOSCHANGED:
|
|
if (AppBarConfig.uEdge >= 0)
|
|
DoAppBarStuff(ABM_WINDOWPOSCHANGED);
|
|
Refresh();
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return DefWindowProc(hWnd, message, wParam, lParam);
|
|
}
|
|
|
|
INT_PTR CALLBACK AboutProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
UNREFERENCED_PARAMETER(lParam);
|
|
switch (message)
|
|
{
|
|
case WM_INITDIALOG:
|
|
return (INT_PTR)TRUE;
|
|
|
|
case WM_COMMAND:
|
|
if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
|
|
{
|
|
EndDialog(hDlg, LOWORD(wParam));
|
|
return (INT_PTR)TRUE;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return (INT_PTR)FALSE;
|
|
}
|
|
|
|
INT_PTR CALLBACK OptionsProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
UNREFERENCED_PARAMETER(lParam);
|
|
|
|
switch (message)
|
|
{
|
|
case WM_INITDIALOG:
|
|
{
|
|
/* Add the zoom items */
|
|
SendDlgItemMessage(hDlg, IDC_ZOOM, CB_ADDSTRING, 0, (LPARAM)("1"));
|
|
SendDlgItemMessage(hDlg, IDC_ZOOM, CB_ADDSTRING, 0, (LPARAM)("2"));
|
|
SendDlgItemMessage(hDlg, IDC_ZOOM, CB_ADDSTRING, 0, (LPARAM)("3"));
|
|
SendDlgItemMessage(hDlg, IDC_ZOOM, CB_ADDSTRING, 0, (LPARAM)("4"));
|
|
SendDlgItemMessage(hDlg, IDC_ZOOM, CB_ADDSTRING, 0, (LPARAM)("5"));
|
|
SendDlgItemMessage(hDlg, IDC_ZOOM, CB_ADDSTRING, 0, (LPARAM)("6"));
|
|
SendDlgItemMessage(hDlg, IDC_ZOOM, CB_ADDSTRING, 0, (LPARAM)("7"));
|
|
SendDlgItemMessage(hDlg, IDC_ZOOM, CB_ADDSTRING, 0, (LPARAM)("8"));
|
|
SendDlgItemMessage(hDlg, IDC_ZOOM, CB_ADDSTRING, 0, (LPARAM)("9"));
|
|
|
|
if (uiZoom >= 1 && uiZoom <= 9)
|
|
SendDlgItemMessage(hDlg, IDC_ZOOM, CB_SETCURSEL, uiZoom - 1, 0);
|
|
|
|
if (bFollowMouse)
|
|
SendDlgItemMessage(hDlg,IDC_FOLLOWMOUSECHECK,BM_SETCHECK, wParam, 0);
|
|
|
|
if (bFollowFocus)
|
|
SendDlgItemMessage(hDlg,IDC_FOLLOWKEYBOARDCHECK,BM_SETCHECK, wParam, 0);
|
|
|
|
if (bFollowCaret)
|
|
SendDlgItemMessage(hDlg,IDC_FOLLOWTEXTEDITINGCHECK,BM_SETCHECK, wParam, 0);
|
|
|
|
if (bInvertColors)
|
|
SendDlgItemMessage(hDlg,IDC_INVERTCOLORSCHECK,BM_SETCHECK, wParam, 0);
|
|
|
|
if (bStartMinimized)
|
|
SendDlgItemMessage(hDlg,IDC_STARTMINIMIZEDCHECK,BM_SETCHECK, wParam, 0);
|
|
|
|
if (bShowMagnifier)
|
|
SendDlgItemMessage(hDlg,IDC_SHOWMAGNIFIERCHECK,BM_SETCHECK, wParam, 0);
|
|
|
|
return (INT_PTR)TRUE;
|
|
}
|
|
|
|
case WM_SHOWWINDOW:
|
|
bOptionsDialog = wParam;
|
|
break;
|
|
|
|
case WM_COMMAND:
|
|
switch (LOWORD(wParam))
|
|
{
|
|
case IDOK:
|
|
case IDCANCEL:
|
|
ShowWindow(hDlg, SW_HIDE);
|
|
return (INT_PTR)TRUE;
|
|
|
|
case IDC_BUTTON_HELP:
|
|
/* Unimplemented */
|
|
MessageBox(hDlg, TEXT("Magnifier help not available yet!"), TEXT("Help"), MB_OK);
|
|
break;
|
|
|
|
case IDC_ZOOM:
|
|
if (HIWORD(wParam) == CBN_SELCHANGE)
|
|
{
|
|
HWND hCombo = GetDlgItem(hDlg,IDC_ZOOM);
|
|
TCHAR currentZoomValue[2] = TEXT("");
|
|
|
|
/* Get index of current selection and the text of that selection */
|
|
int currentSelectionIndex = ComboBox_GetCurSel(hCombo);
|
|
ComboBox_GetLBText(hCombo, currentSelectionIndex, currentZoomValue);
|
|
uiZoom = (UINT)_ttoi(currentZoomValue);
|
|
/* The zoom factor cannot be smaller than 1 (and not zero) or greater than 9 */
|
|
if (uiZoom < 1 || uiZoom > 9)
|
|
uiZoom = 1;
|
|
|
|
/* Trigger the Draw function to rezoom (which will be set false automatically after rezooming) */
|
|
bRecreateOffscreenDC = TRUE;
|
|
|
|
/* Update the magnifier UI */
|
|
Refresh();
|
|
}
|
|
break;
|
|
|
|
case IDC_INVERTCOLORSCHECK:
|
|
bInvertColors = IsDlgButtonChecked(hDlg, IDC_INVERTCOLORSCHECK);
|
|
Refresh();
|
|
break;
|
|
case IDC_FOLLOWMOUSECHECK:
|
|
bFollowMouse = IsDlgButtonChecked(hDlg, IDC_FOLLOWMOUSECHECK);
|
|
break;
|
|
case IDC_FOLLOWKEYBOARDCHECK:
|
|
bFollowFocus = IsDlgButtonChecked(hDlg, IDC_FOLLOWKEYBOARDCHECK);
|
|
break;
|
|
case IDC_FOLLOWTEXTEDITINGCHECK:
|
|
bFollowCaret = IsDlgButtonChecked(hDlg, IDC_FOLLOWTEXTEDITINGCHECK);
|
|
break;
|
|
case IDC_STARTMINIMIZEDCHECK:
|
|
bStartMinimized = IsDlgButtonChecked(hDlg, IDC_STARTMINIMIZEDCHECK);
|
|
break;
|
|
case IDC_SHOWMAGNIFIER:
|
|
bShowMagnifier = IsDlgButtonChecked(hDlg, IDC_SHOWMAGNIFIERCHECK);
|
|
ShowWindow(hMainWnd, (bShowMagnifier ? SW_SHOW : SW_HIDE));
|
|
break;
|
|
}
|
|
}
|
|
|
|
return (INT_PTR)FALSE;
|
|
}
|
|
|
|
INT_PTR CALLBACK WarningProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
UNREFERENCED_PARAMETER(lParam);
|
|
|
|
switch (message)
|
|
{
|
|
case WM_INITDIALOG:
|
|
return (INT_PTR)TRUE;
|
|
|
|
case WM_COMMAND:
|
|
switch (LOWORD(wParam))
|
|
{
|
|
case IDC_SHOWWARNINGCHECK:
|
|
bShowWarning = !IsDlgButtonChecked(hDlg, IDC_SHOWWARNINGCHECK);
|
|
break;
|
|
}
|
|
if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
|
|
{
|
|
EndDialog(hDlg, LOWORD(wParam));
|
|
return (INT_PTR)TRUE;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return (INT_PTR)FALSE;
|
|
}
|