mirror of
https://github.com/reactos/reactos.git
synced 2024-08-27 05:38:41 +00:00
401 lines
11 KiB
C
401 lines
11 KiB
C
/*
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* PROJECT: ReactOS On-Screen Keyboard
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: base/applications/osk/main.c
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* PURPOSE: On-screen keyboard.
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* PROGRAMMERS: Denis ROBERT
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*/
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/* INCLUDES *******************************************************************/
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#include "osk.h"
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/* GLOBALS ********************************************************************/
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OSK_GLOBALS Globals;
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/* Functions */
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int OSK_SetImage(int IdDlgItem, int IdResource);
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int OSK_DlgInitDialog(HWND hDlg);
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int OSK_DlgClose(void);
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int OSK_DlgTimer(void);
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BOOL OSK_DlgCommand(WPARAM wCommand, HWND hWndControl);
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BOOL OSK_ReleaseKey(WORD ScanCode);
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INT_PTR APIENTRY OSK_DlgProc(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam);
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int WINAPI _tWinMain(HINSTANCE, HINSTANCE, LPTSTR, int);
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/* FUNCTIONS ******************************************************************/
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/***********************************************************************
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*
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* OSK_SetImage
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*
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* Set an image on a button
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*/
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int OSK_SetImage(int IdDlgItem, int IdResource)
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{
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HICON hIcon;
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HWND hWndItem;
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hIcon = (HICON)LoadImage(Globals.hInstance, MAKEINTRESOURCE(IdResource),
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IMAGE_ICON, 16, 16, LR_DEFAULTCOLOR);
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if (hIcon == NULL)
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return FALSE;
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hWndItem = GetDlgItem(Globals.hMainWnd, IdDlgItem);
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if (hWndItem == NULL)
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{
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DestroyIcon(hIcon);
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return FALSE;
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}
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SendMessage(hWndItem, BM_SETIMAGE, (WPARAM)IMAGE_ICON, (LPARAM)hIcon);
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/* The system automatically deletes these resources when the process that created them terminates (MSDN) */
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return TRUE;
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}
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/***********************************************************************
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*
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* OSK_DlgInitDialog
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*
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* Handling of WM_INITDIALOG
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*/
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int OSK_DlgInitDialog(HWND hDlg)
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{
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HMONITOR monitor;
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MONITORINFO info;
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POINT Pt;
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RECT rcWindow;
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/* Save handle */
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Globals.hMainWnd = hDlg;
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/* Get screen info */
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memset(&Pt, 0, sizeof(Pt));
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monitor = MonitorFromPoint(Pt, MONITOR_DEFAULTTOPRIMARY );
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info.cbSize = sizeof(info);
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GetMonitorInfoW(monitor, &info);
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/* Move the dialog on the bottom of main screen */
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GetWindowRect(hDlg, &rcWindow);
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MoveWindow(hDlg,
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(info.rcMonitor.left + info.rcMonitor.right) / 2 - // Center of screen
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(rcWindow.right - rcWindow.left) / 2, // - half size of dialog
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info.rcMonitor.bottom - // Bottom of screen
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(rcWindow.bottom - rcWindow.top), // - size of window
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rcWindow.right - rcWindow.left, // Width
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rcWindow.bottom - rcWindow.top, // Height
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TRUE);
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/* Set icon on visual buttons */
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OSK_SetImage(SCAN_CODE_15, IDI_BACK);
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OSK_SetImage(SCAN_CODE_16, IDI_TAB);
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OSK_SetImage(SCAN_CODE_30, IDI_CAPS_LOCK);
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OSK_SetImage(SCAN_CODE_43, IDI_RETURN);
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OSK_SetImage(SCAN_CODE_44, IDI_SHIFT);
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OSK_SetImage(SCAN_CODE_57, IDI_SHIFT);
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OSK_SetImage(SCAN_CODE_127, IDI_REACTOS);
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OSK_SetImage(SCAN_CODE_128, IDI_REACTOS);
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OSK_SetImage(SCAN_CODE_129, IDI_MENU);
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OSK_SetImage(SCAN_CODE_80, IDI_HOME);
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OSK_SetImage(SCAN_CODE_85, IDI_PG_UP);
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OSK_SetImage(SCAN_CODE_86, IDI_PG_DOWN);
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OSK_SetImage(SCAN_CODE_79, IDI_LEFT);
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OSK_SetImage(SCAN_CODE_83, IDI_TOP);
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OSK_SetImage(SCAN_CODE_84, IDI_BOTTOM);
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OSK_SetImage(SCAN_CODE_89, IDI_RIGHT);
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/* Create a green brush for leds */
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Globals.hBrushGreenLed = CreateSolidBrush(RGB(0, 255, 0));
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/* Set a timer for periodics tasks */
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Globals.iTimer = SetTimer(hDlg, 0, 200, NULL);
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return TRUE;
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}
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/***********************************************************************
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*
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* OSK_DlgClose
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*
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* Handling of WM_CLOSE
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*/
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int OSK_DlgClose(void)
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{
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KillTimer(Globals.hMainWnd, Globals.iTimer);
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/* Release Ctrl, Shift, Alt keys */
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OSK_ReleaseKey(SCAN_CODE_44); // Left shift
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OSK_ReleaseKey(SCAN_CODE_57); // Right shift
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OSK_ReleaseKey(SCAN_CODE_58); // Left ctrl
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OSK_ReleaseKey(SCAN_CODE_60); // Left alt
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OSK_ReleaseKey(SCAN_CODE_62); // Right alt
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OSK_ReleaseKey(SCAN_CODE_64); // Right ctrl
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/* delete GDI objects */
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if (Globals.hBrushGreenLed) DeleteObject(Globals.hBrushGreenLed);
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return TRUE;
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}
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/***********************************************************************
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*
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* OSK_DlgTimer
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*
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* Handling of WM_TIMER
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*/
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int OSK_DlgTimer(void)
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{
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/* FIXME: To be deleted when ReactOS will support WS_EX_NOACTIVATE */
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HWND hWndActiveWindow;
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hWndActiveWindow = GetForegroundWindow();
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if (hWndActiveWindow != NULL && hWndActiveWindow != Globals.hMainWnd)
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{
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Globals.hActiveWnd = hWndActiveWindow;
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}
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/* Always redraw leds because it can be changed by the real keyboard) */
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InvalidateRect(GetDlgItem(Globals.hMainWnd, IDC_LED_NUM), NULL, TRUE);
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InvalidateRect(GetDlgItem(Globals.hMainWnd, IDC_LED_CAPS), NULL, TRUE);
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InvalidateRect(GetDlgItem(Globals.hMainWnd, IDC_LED_SCROLL), NULL, TRUE);
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return TRUE;
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}
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/***********************************************************************
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*
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* OSK_DlgCommand
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*
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* All handling of dialog command
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*/
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BOOL OSK_DlgCommand(WPARAM wCommand, HWND hWndControl)
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{
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WORD ScanCode;
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INPUT Input;
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BOOL bExtendedKey;
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BOOL bKeyDown;
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BOOL bKeyUp;
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LONG WindowStyle;
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/* FIXME: To be deleted when ReactOS will support WS_EX_NOACTIVATE */
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if (Globals.hActiveWnd)
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{
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MSG msg;
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SetForegroundWindow(Globals.hActiveWnd);
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while (PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
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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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/* KeyDown and/or KeyUp ? */
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WindowStyle = GetWindowLong(hWndControl, GWL_STYLE);
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if ((WindowStyle & BS_AUTOCHECKBOX) == BS_AUTOCHECKBOX)
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{
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/* 2-states key like Shift, Alt, Ctrl, ... */
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if (SendMessage(hWndControl, BM_GETCHECK, 0, 0) == BST_CHECKED)
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{
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bKeyDown = TRUE;
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bKeyUp = FALSE;
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}
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else
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{
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bKeyDown = FALSE;
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bKeyUp = TRUE;
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}
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}
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else
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{
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/* Other key */
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bKeyDown = TRUE;
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bKeyUp = TRUE;
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}
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/* Extended key ? */
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ScanCode = wCommand;
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if (ScanCode & 0x0200)
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bExtendedKey = TRUE;
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else
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bExtendedKey = FALSE;
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ScanCode &= 0xFF;
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/* Press and release the key */
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if (bKeyDown)
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{
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Input.type = INPUT_KEYBOARD;
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Input.ki.wVk = 0;
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Input.ki.wScan = ScanCode;
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Input.ki.time = GetTickCount();
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Input.ki.dwExtraInfo = GetMessageExtraInfo();
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Input.ki.dwFlags = KEYEVENTF_SCANCODE;
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if (bExtendedKey) Input.ki.dwFlags |= KEYEVENTF_EXTENDEDKEY;
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SendInput(1, &Input, sizeof(Input));
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}
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if (bKeyUp)
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{
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Input.type = INPUT_KEYBOARD;
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Input.ki.wVk = 0;
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Input.ki.wScan = ScanCode;
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Input.ki.time = GetTickCount();
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Input.ki.dwExtraInfo = GetMessageExtraInfo();
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Input.ki.dwFlags = KEYEVENTF_SCANCODE | KEYEVENTF_KEYUP;
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if (bExtendedKey) Input.ki.dwFlags |= KEYEVENTF_EXTENDEDKEY;
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SendInput(1, &Input, sizeof(Input));
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}
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return TRUE;
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}
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/***********************************************************************
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*
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* OSK_ReleaseKey
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*
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* Release the key of ID wCommand
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*/
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BOOL OSK_ReleaseKey(WORD ScanCode)
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{
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INPUT Input;
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BOOL bExtendedKey;
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LONG WindowStyle;
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HWND hWndControl;
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/* Is it a 2-states key ? */
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hWndControl = GetDlgItem(Globals.hMainWnd, ScanCode);
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WindowStyle = GetWindowLong(hWndControl, GWL_STYLE);
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if ((WindowStyle & BS_AUTOCHECKBOX) != BS_AUTOCHECKBOX) return FALSE;
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/* Is the key down ? */
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if (SendMessage(hWndControl, BM_GETCHECK, 0, 0) != BST_CHECKED) return TRUE;
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/* Extended key ? */
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if (ScanCode & 0x0200)
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bExtendedKey = TRUE;
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else
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bExtendedKey = FALSE;
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ScanCode &= 0xFF;
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/* Release the key */
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Input.type = INPUT_KEYBOARD;
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Input.ki.wVk = 0;
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Input.ki.wScan = ScanCode;
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Input.ki.time = GetTickCount();
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Input.ki.dwExtraInfo = GetMessageExtraInfo();
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Input.ki.dwFlags = KEYEVENTF_SCANCODE | KEYEVENTF_KEYUP;
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if (bExtendedKey) Input.ki.dwFlags |= KEYEVENTF_EXTENDEDKEY;
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SendInput(1, &Input, sizeof(Input));
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return TRUE;
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}
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/***********************************************************************
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*
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* OSK_DlgProc
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*/
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INT_PTR APIENTRY OSK_DlgProc(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam)
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{
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switch (msg)
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{
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case WM_INITDIALOG:
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OSK_DlgInitDialog(hDlg);
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return TRUE;
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case WM_TIMER:
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OSK_DlgTimer();
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return TRUE;
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case WM_CTLCOLORSTATIC:
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if ((HWND)lParam == GetDlgItem(hDlg, IDC_LED_NUM))
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{
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if (GetKeyState(VK_NUMLOCK) & 0x0001)
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return (INT_PTR)Globals.hBrushGreenLed;
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else
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return (INT_PTR)GetStockObject(BLACK_BRUSH);
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}
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if ((HWND)lParam == GetDlgItem(hDlg, IDC_LED_CAPS))
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{
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if (GetKeyState(VK_CAPITAL) & 0x0001)
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return (INT_PTR)Globals.hBrushGreenLed;
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else
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return (INT_PTR)GetStockObject(BLACK_BRUSH);
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}
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if ((HWND)lParam == GetDlgItem(hDlg, IDC_LED_SCROLL))
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{
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if (GetKeyState(VK_SCROLL) & 0x0001)
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return (INT_PTR)Globals.hBrushGreenLed;
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else
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return (INT_PTR)GetStockObject(BLACK_BRUSH);
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}
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break;
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case WM_COMMAND:
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if (wParam == IDCANCEL)
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EndDialog(hDlg, FALSE);
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else if (wParam != IDC_STATIC)
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OSK_DlgCommand(wParam, (HWND) lParam);
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break;
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case WM_CLOSE:
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OSK_DlgClose();
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break;
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}
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return 0;
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}
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/***********************************************************************
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*
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* WinMain
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*/
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int WINAPI _tWinMain(HINSTANCE hInstance,
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HINSTANCE prev,
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LPTSTR cmdline,
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int show)
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{
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HANDLE hMutex;
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UNREFERENCED_PARAMETER(prev);
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UNREFERENCED_PARAMETER(cmdline);
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UNREFERENCED_PARAMETER(show);
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ZeroMemory(&Globals, sizeof(Globals));
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Globals.hInstance = hInstance;
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/* Rry to open a mutex for a single instance */
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hMutex = OpenMutexA(MUTEX_ALL_ACCESS, FALSE, "osk");
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if (!hMutex)
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{
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/* Mutex doesn<73>t exist. This is the first instance so create the mutex. */
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hMutex = CreateMutexA(NULL, FALSE, "osk");
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DialogBox(hInstance,
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MAKEINTRESOURCE(MAIN_DIALOG),
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GetDesktopWindow(),
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OSK_DlgProc);
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/* Delete the mutex */
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if (hMutex) CloseHandle(hMutex);
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}
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else
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{
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/* Programme already launched */
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/* Delete the mutex */
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CloseHandle(hMutex);
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ExitProcess(0);
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}
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return 0;
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}
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/* EOF */
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