reactos/base/applications/magnify/magnifier.c

994 lines
30 KiB
C

/*
* PROJECT: ReactOS Magnify
* LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
* PURPOSE: Magnification of parts of the screen.
* COPYRIGHT: Copyright 2007-2019 Marc Piulachs <marc.piulachs@codexchange.net>
* Copyright 2015-2019 David Quintana <gigaherz@gmail.com>
*/
/* TODO: Support AppBar types other than ABE_TOP */
#include "magnifier.h"
#include <winbase.h>
#include <winuser.h>
#include <wingdi.h>
#include <winnls.h>
#include <commctrl.h>
#include <shellapi.h>
#include <windowsx.h>
#include <stdlib.h>
#include <tchar.h>
#include "resource.h"
#define APPMSG_NOTIFYICON (WM_APP+1)
#define APPMSG_APPBAR (WM_APP+2)
const TCHAR szWindowClass[] = TEXT("MAGNIFIER");
/* Global Variables */
HINSTANCE hInst;
HWND hMainWnd;
#define MAX_LOADSTRING 100
TCHAR szTitle[MAX_LOADSTRING];
#define TIMER_SPEED 1
#define REPAINT_SPEED 100
DWORD lastTicks = 0;
HWND hDesktopWindow = NULL;
NOTIFYICONDATA nid;
HICON notifyIcon;
HMENU notifyMenu;
HWND hOptionsDialog;
BOOL bOptionsDialog = FALSE;
BOOL bRecreateOffscreenDC = TRUE;
LONG sourceWidth = 0;
LONG sourceHeight = 0;
HDC hdcOffscreen = NULL;
HBITMAP hbmpOffscreen = NULL;
HANDLE hbmpOld;
POINT ptDragOffset;
INT nearEdge;
/* Current magnified area */
POINT cp;
/* Last positions */
POINT pMouse;
POINT pCaret;
POINT pFocus;
HWND pCaretWnd;
HWND pFocusWnd;
ATOM MyRegisterClass(HINSTANCE hInstance);
BOOL InitInstance(HINSTANCE, int);
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK AboutProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK OptionsProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK WarningProc(HWND, UINT, WPARAM, LPARAM);
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
MSG msg;
HACCEL hAccelTable;
INITCOMMONCONTROLSEX iccex;
UNREFERENCED_PARAMETER(hPrevInstance);
UNREFERENCED_PARAMETER(lpCmdLine);
switch (GetUserDefaultUILanguage())
{
case MAKELANGID(LANG_HEBREW, SUBLANG_DEFAULT):
SetProcessDefaultLayout(LAYOUT_RTL);
break;
default:
break;
}
/* Initialize global strings */
LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
MyRegisterClass(hInstance);
/* Perform application initialization */
if (!InitInstance(hInstance, nCmdShow))
return FALSE;
hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_MAGNIFIER));
/* Main message loop */
while (GetMessage(&msg, NULL, 0, 0))
{
if (!TranslateAccelerator(hMainWnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
/* Load the common controls */
iccex.dwSize = sizeof(INITCOMMONCONTROLSEX);
iccex.dwICC = ICC_STANDARD_CLASSES | ICC_WIN95_CLASSES;
InitCommonControlsEx(&iccex);
SelectObject(hdcOffscreen, hbmpOld);
DeleteObject (hbmpOffscreen);
DeleteDC(hdcOffscreen);
return (int) msg.wParam;
}
ATOM MyRegisterClass(HINSTANCE hInstance)
{
WNDCLASS wc;
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON));
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wc.lpszMenuName = NULL; //MAKEINTRESOURCE(IDC_MAGNIFIER);
wc.lpszClassName = szWindowClass;
return RegisterClass(&wc);
}
void DoAppBarStuff(DWORD mode)
{
UINT uState;
APPBARDATA data = {0};
data.cbSize = sizeof(data);
data.hWnd = hMainWnd;
data.uCallbackMessage = APPMSG_APPBAR;
if (mode == ABM_NEW || mode == ABM_SETPOS)
{
HWND hWndOrder = HWND_BOTTOM;
int rcw, rch;
RECT rcWorkArea;
SystemParametersInfo(SPI_GETWORKAREA, 0, &rcWorkArea, 0);
if (mode == ABM_NEW)
{
SHAppBarMessage(ABM_NEW, &data);
switch(AppBarConfig.uEdge)
{
case ABE_LEFT:
data.rc.top = rcWorkArea.top;
data.rc.bottom = rcWorkArea.bottom;
data.rc.left = rcWorkArea.left;
data.rc.right = data.rc.left + AppBarConfig.appBarSizes.left;
break;
case ABE_TOP:
data.rc.left = rcWorkArea.left;
data.rc.right = rcWorkArea.right;
data.rc.top = rcWorkArea.top;
data.rc.bottom = data.rc.top + AppBarConfig.appBarSizes.top;
break;
case ABE_RIGHT:
data.rc.top = rcWorkArea.top;
data.rc.bottom = rcWorkArea.bottom;
data.rc.right = rcWorkArea.left;
data.rc.left = data.rc.right - AppBarConfig.appBarSizes.right;
break;
case ABE_BOTTOM:
data.rc.left = rcWorkArea.left;
data.rc.right = rcWorkArea.right;
data.rc.bottom = rcWorkArea.bottom;
data.rc.top = data.rc.bottom - AppBarConfig.appBarSizes.bottom;
break;
}
}
else
{
GetWindowRect(hMainWnd, &data.rc);
}
data.uEdge = AppBarConfig.uEdge;
uState = SHAppBarMessage(ABM_QUERYPOS, &data);
uState = SHAppBarMessage(ABM_SETPOS, &data);
rcw = data.rc.right-data.rc.left;
rch = data.rc.bottom-data.rc.top;
uState = SHAppBarMessage(ABM_GETSTATE, &data);
if (uState & ABS_ALWAYSONTOP)
hWndOrder = HWND_TOPMOST;
SetWindowPos(hMainWnd, hWndOrder, data.rc.left, data.rc.top, rcw, rch, SWP_SHOWWINDOW | SWP_NOCOPYBITS);
}
else if (mode == ABM_GETSTATE)
{
HWND hWndOrder = HWND_BOTTOM;
uState = SHAppBarMessage(ABM_GETSTATE, &data);
if (uState & ABS_ALWAYSONTOP)
hWndOrder = HWND_TOPMOST;
SetWindowPos(hMainWnd, hWndOrder, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE);
}
else if (mode == ABM_ACTIVATE)
{
SHAppBarMessage(ABM_ACTIVATE, &data);
}
else if (mode == ABM_WINDOWPOSCHANGED)
{
SHAppBarMessage(ABM_WINDOWPOSCHANGED, &data);
}
else if (mode == ABM_REMOVE)
{
SHAppBarMessage(ABM_REMOVE, &data);
}
}
void AttachAppBar(INT uEdge)
{
if (AppBarConfig.uEdge == uEdge)
return;
if (AppBarConfig.uEdge < 0 && uEdge >= 0)
{
SetWindowLongPtr(hMainWnd, GWL_STYLE, GetWindowLongPtr(hMainWnd, GWL_STYLE) & (~WS_CAPTION));
}
else if (uEdge < 0 && AppBarConfig.uEdge >= 0)
{
SetWindowLongPtr(hMainWnd, GWL_STYLE, GetWindowLongPtr(hMainWnd, GWL_STYLE) | WS_CAPTION);
SetWindowPos(hMainWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE|SWP_FRAMECHANGED);
}
if (AppBarConfig.uEdge >= 0)
{
DoAppBarStuff(ABM_REMOVE);
}
if (uEdge >= 0)
{
AppBarConfig.uEdge = uEdge;
DoAppBarStuff(ABM_NEW);
}
else
{
RECT rc = AppBarConfig.rcFloating;
SetWindowPos(hMainWnd, HWND_TOPMOST, rc.left, rc.top, rc.right-rc.left, rc.bottom-rc.top, 0);
}
AppBarConfig.uEdge = uEdge;
}
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
RECT rc;
DWORD exStyles = WS_EX_TOOLWINDOW | WS_EX_CONTROLPARENT;
DWORD dwStyles = WS_SIZEBOX | WS_SYSMENU | WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_POPUP;
/* Load settings from registry */
LoadSettings();
rc = AppBarConfig.rcFloating;
hInst = hInstance; // Store instance handle in our global variable
if (AppBarConfig.uEdge <0 )
{
dwStyles |= WS_CAPTION;
exStyles |= WS_EX_TOPMOST;
}
/* Create the Window */
hMainWnd = CreateWindowEx(exStyles,
szWindowClass,
szTitle,
dwStyles,
rc.left,
rc.top,
rc.right-rc.left,
rc.bottom-rc.top,
NULL,
NULL,
hInstance,
NULL);
if (!hMainWnd)
return FALSE;
if (AppBarConfig.uEdge >= 0)
DoAppBarStuff(ABM_NEW);
else
SetWindowPos(hMainWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
// In Windows 2003's Magnifier, the "Start Minimized" setting
// refers exclusively to the options dialog, not the main window itself.
hOptionsDialog = CreateDialog(hInstance, MAKEINTRESOURCE(IDD_DIALOGOPTIONS), hMainWnd, OptionsProc);
ShowWindow(hOptionsDialog, (bStartMinimized ? SW_HIDE : SW_SHOW));
if (bShowWarning)
DialogBox(hInstance, MAKEINTRESOURCE(IDD_WARNINGDIALOG), hMainWnd, WarningProc);
return TRUE;
}
void Refresh(void)
{
if (!IsIconic(hMainWnd))
{
/* Invalidate the client area forcing a WM_PAINT message */
InvalidateRgn(hMainWnd, NULL, TRUE);
}
}
void GetBestOverlapWithMonitors(LPRECT rect)
{
int rcLeft, rcTop;
int rcWidth, rcHeight;
RECT rcMon;
HMONITOR hMon = MonitorFromRect(rect, MONITOR_DEFAULTTONEAREST);
MONITORINFO info;
info.cbSize = sizeof(info);
GetMonitorInfo(hMon, &info);
rcMon = info.rcMonitor;
rcLeft = rect->left;
rcTop = rect->top;
rcWidth = (rect->right - rect->left);
rcHeight = (rect->bottom - rect->top);
if (rcLeft < rcMon.left)
rcLeft = rcMon.left;
if (rcTop < rcMon.top)
rcTop = rcMon.top;
if (rcLeft > (rcMon.right - rcWidth))
rcLeft = (rcMon.right - rcWidth);
if (rcTop > (rcMon.bottom - rcHeight))
rcTop = (rcMon.bottom - rcHeight);
OffsetRect(rect, (rcLeft-rect->left), (rcTop-rect->top));
}
void Draw(HDC aDc)
{
HDC desktopHdc = NULL;
RECT sourceRect, intersectedRect;
RECT targetRect, appRect;
DWORD rop = SRCCOPY;
CURSORINFO cinfo;
ICONINFO iinfo;
int AppWidth, AppHeight;
if (bInvertColors)
rop = NOTSRCCOPY;
desktopHdc = GetDC(0);
GetClientRect(hMainWnd, &appRect);
AppWidth = (appRect.right - appRect.left);
AppHeight = (appRect.bottom - appRect.top);
ZeroMemory(&cinfo, sizeof(cinfo));
ZeroMemory(&iinfo, sizeof(iinfo));
cinfo.cbSize = sizeof(cinfo);
GetCursorInfo(&cinfo);
GetIconInfo(cinfo.hCursor, &iinfo);
targetRect = appRect;
ClientToScreen(hMainWnd, (POINT*)&targetRect.left);
ClientToScreen(hMainWnd, (POINT*)&targetRect.right);
if (bRecreateOffscreenDC || !hdcOffscreen)
{
bRecreateOffscreenDC = FALSE;
if (hdcOffscreen)
{
SelectObject(hdcOffscreen, hbmpOld);
DeleteObject (hbmpOffscreen);
DeleteDC(hdcOffscreen);
}
sourceWidth = AppWidth / uiZoom;
sourceHeight = AppHeight / uiZoom;
/* Create a memory DC compatible with client area DC */
hdcOffscreen = CreateCompatibleDC(desktopHdc);
/* Create a bitmap compatible with the client area DC */
hbmpOffscreen = CreateCompatibleBitmap(desktopHdc,
sourceWidth,
sourceHeight);
/* Select our bitmap in memory DC and save the old one */
hbmpOld = SelectObject(hdcOffscreen, hbmpOffscreen);
}
GetWindowRect(hDesktopWindow, &sourceRect);
sourceRect.left = (cp.x) - (sourceWidth /2);
sourceRect.top = (cp.y) - (sourceHeight /2);
sourceRect.right = sourceRect.left + sourceWidth;
sourceRect.bottom = sourceRect.top + sourceHeight;
GetBestOverlapWithMonitors(&sourceRect);
/* Paint the screen bitmap to our in memory DC */
BitBlt(hdcOffscreen,
0,
0,
sourceWidth,
sourceHeight,
desktopHdc,
sourceRect.left,
sourceRect.top,
rop);
if (IntersectRect(&intersectedRect, &sourceRect, &targetRect))
{
OffsetRect(&intersectedRect, -sourceRect.left, -sourceRect.top);
FillRect(hdcOffscreen, &intersectedRect, GetStockObject(DC_BRUSH));
}
/* Draw the mouse pointer in the right position */
DrawIcon(hdcOffscreen,
pMouse.x - iinfo.xHotspot - sourceRect.left, // - 10,
pMouse.y - iinfo.yHotspot - sourceRect.top, // - 10,
cinfo.hCursor);
/* Blast the stretched image from memory DC to window DC */
StretchBlt(aDc,
0,
0,
AppWidth,
AppHeight,
hdcOffscreen,
0,
0,
sourceWidth,
sourceHeight,
SRCCOPY | NOMIRRORBITMAP);
/* Cleanup */
if (iinfo.hbmMask)
DeleteObject(iinfo.hbmMask);
if (iinfo.hbmColor)
DeleteObject(iinfo.hbmColor);
ReleaseDC(hDesktopWindow, desktopHdc);
}
void HandleNotifyIconMessage(HWND hWnd, WPARAM wParam, LPARAM lParam)
{
POINT pt;
switch(lParam)
{
case WM_LBUTTONUP:
PostMessage(hMainWnd, WM_COMMAND, IDM_OPTIONS, 0);
break;
case WM_RBUTTONUP:
GetCursorPos(&pt);
TrackPopupMenu(notifyMenu, 0, pt.x, pt.y, 0, hWnd, NULL);
break;
}
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId;
switch (message)
{
case WM_TIMER:
{
BOOL hasMoved = FALSE;
GUITHREADINFO guiInfo;
guiInfo.cbSize = sizeof(guiInfo);
GetGUIThreadInfo(0, &guiInfo);
if (bFollowMouse)
{
POINT pNewMouse;
//Get current mouse position
GetCursorPos (&pNewMouse);
#define PointsAreEqual(pt1, pt2) (((pt1).x == (pt2).x) && ((pt1).y == (pt2).y))
//If mouse has moved ...
if (!PointsAreEqual(pMouse, pNewMouse))
{
//Update to new position
pMouse = pNewMouse;
cp = pNewMouse;
hasMoved = TRUE;
}
}
if (guiInfo.hwndActive != hMainWnd)
{
if (bFollowCaret)
{
if (guiInfo.hwndCaret)
{
POINT ptCaret;
ptCaret.x = (guiInfo.rcCaret.left + guiInfo.rcCaret.right) / 2;
ptCaret.y = (guiInfo.rcCaret.top + guiInfo.rcCaret.bottom) / 2;
if ((pCaretWnd != guiInfo.hwndCaret) || !PointsAreEqual(pCaret, ptCaret))
{
//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;
}