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1.1.1.3 ! root 1: ! 2: /******************************************************************************\ ! 3: * This is a part of the Microsoft Source Code Samples. ! 4: * Copyright (C) 1993 Microsoft Corporation. ! 5: * All rights reserved. ! 6: * This source code is only intended as a supplement to ! 7: * Microsoft Development Tools and/or WinHelp documentation. ! 8: * See these sources for detailed information regarding the ! 9: * Microsoft samples programs. ! 10: \******************************************************************************/ ! 11: 1.1 root 12: /**************************************************************************** 13: 14: PROGRAM: Input.c 15: 16: PURPOSE: Input template for Windows applications 17: 18: FUNCTIONS: 19: 1.1.1.3 ! root 20: WinMain() - calls initialization function, processes message loop ! 21: InitApplication() - initializes window data and registers window ! 22: InitInstance() - saves instance handle and creates main window ! 23: MainWndProc() - processes messages ! 24: About() - processes messages for "About" dialog box 1.1 root 25: 26: ****************************************************************************/ 27: 28: #include "windows.h" 29: #include <string.h> 30: #include "input.h" 31: 32: HANDLE hInst; 33: 34: CHAR MouseText[48]; /* mouse state */ 35: CHAR ButtonText[48]; /* mouse-button state */ 36: CHAR KeyboardText[48]; /* keyboard state */ 37: CHAR CharacterText[48]; /* latest character */ 38: CHAR ScrollText[48]; /* scroll status */ 39: CHAR TimerText[48]; /* timer state */ 40: RECT rectMouse; 41: RECT rectButton; 42: RECT rectKeyboard; 43: RECT rectCharacter; 44: RECT rectScroll; 45: RECT rectTimer; 46: INT idTimer; /* timer ID */ 1.1.1.3 ! root 47: INT nTimerCount = 0; /* current timer count */ 1.1 root 48: 49: /**************************************************************************** 50: 51: FUNCTION: WinMain(HANDLE, HANDLE, LPSTR, int) 52: 53: PURPOSE: calls initialization function, processes message loop 54: 55: ****************************************************************************/ 56: 57: int APIENTRY WinMain( 58: HANDLE hInstance, 59: HANDLE hPrevInstance, 60: LPSTR lpCmdLine, 61: int nCmdShow 62: ) 63: { 64: MSG msg; 65: 66: UNREFERENCED_PARAMETER( lpCmdLine ); 67: 68: if (!hPrevInstance) 1.1.1.3 ! root 69: if (!InitApplication(hInstance)) ! 70: return (FALSE); 1.1 root 71: 72: if (!InitInstance(hInstance, nCmdShow)) 73: return (FALSE); 74: 1.1.1.3 ! root 75: while (GetMessage(&msg, NULL, 0, 0)) { ! 76: TranslateMessage(&msg); ! 77: DispatchMessage(&msg); 1.1 root 78: } 79: return (msg.wParam); 80: } 81: 82: 83: /**************************************************************************** 84: 85: FUNCTION: InitApplication(HANDLE) 86: 87: PURPOSE: Initializes window data and registers window class 88: 89: ****************************************************************************/ 90: 91: BOOL InitApplication(HANDLE hInstance) 92: { 93: WNDCLASS wc; 94: 95: wc.style = CS_DBLCLKS; /* double-click messages */ 96: wc.lpfnWndProc = (WNDPROC) MainWndProc; 97: wc.cbClsExtra = 0; 98: wc.cbWndExtra = 0; 99: wc.hInstance = hInstance; 100: wc.hIcon = LoadIcon(NULL, IDI_APPLICATION); 101: wc.hCursor = LoadCursor(NULL, IDC_ARROW); 102: wc.hbrBackground = GetStockObject(WHITE_BRUSH); 103: wc.lpszMenuName = "InputMenu"; 104: wc.lpszClassName = "InputWClass"; 105: 106: return (RegisterClass(&wc)); 107: } 108: 109: 110: /**************************************************************************** 111: 112: FUNCTION: InitInstance(HANDLE, int) 113: 114: PURPOSE: Saves instance handle and creates main window 115: 116: ****************************************************************************/ 117: 118: BOOL InitInstance( 119: HANDLE hInstance, 120: INT nCmdShow) 121: { 122: HWND hWnd; 123: HDC hDC; 124: TEXTMETRIC textmetric; 125: RECT rect; 126: INT nLineHeight; 127: 128: 129: hInst = hInstance; 130: 131: hWnd = CreateWindow( 132: "InputWClass", 133: "Input Sample Application", 134: WS_OVERLAPPEDWINDOW | WS_HSCROLL | WS_VSCROLL, /* horz & vert scroll bars */ 135: CW_USEDEFAULT, 136: CW_USEDEFAULT, 137: CW_USEDEFAULT, 138: CW_USEDEFAULT, 139: NULL, 140: NULL, 141: hInstance, 142: NULL 143: ); 144: 145: if (!hWnd) 146: return (FALSE); 147: 148: 149: hDC = GetDC(hWnd); 150: GetTextMetrics(hDC, &textmetric); 151: nLineHeight = textmetric.tmExternalLeading + textmetric.tmHeight; 152: 153: rect.left = GetDeviceCaps(hDC, LOGPIXELSX) / 4; /* 1/4 inch */ 154: rect.right = GetDeviceCaps(hDC, HORZRES); 155: rect.top = GetDeviceCaps(hDC, LOGPIXELSY) / 4; /* 1/4 inch */ 156: ReleaseDC(hWnd, hDC); 157: rect.bottom = rect.top + nLineHeight; 158: rectMouse = rect; 159: 160: rect.top += nLineHeight; 161: rect.bottom += nLineHeight; 162: rectButton = rect; 163: 164: rect.top += nLineHeight; 165: rect.bottom += nLineHeight; 166: rectKeyboard = rect; 167: 168: rect.top += nLineHeight; 169: rect.bottom += nLineHeight; 170: rectCharacter = rect; 171: 172: rect.top += nLineHeight; 173: rect.bottom += nLineHeight; 174: rectScroll = rect; 175: 176: rect.top += nLineHeight; 177: rect.bottom += nLineHeight; 178: rectTimer = rect; 179: 180: ShowWindow(hWnd, nCmdShow); 181: UpdateWindow(hWnd); 182: return (TRUE); 183: 184: } 185: 186: /**************************************************************************** 187: 188: FUNCTION: MainWndProc(HWND, unsigned, WORD, LONG) 189: 190: PURPOSE: Processes messages 191: 192: MESSAGES: 193: 1.1.1.3 ! root 194: WM_COMMAND - application menu (About dialog box) ! 195: WM_CREATE - create window 1.1 root 196: WM_MOUSEMOVE - mouse movement 197: WM_LBUTTONDOWN - left mouse button pressed 198: WM_LBUTTONUP - left mouse button released 199: WM_LBUTTONDBLCLK - left mouse button double clicked 200: WM_KEYDOWN - key pressed 201: WM_KEYUP - key released 202: WM_CHAR - ASCII character received 203: WM_TIMER - timer has elapsed 204: WM_HSCROLL - mouse click in horizontal scroll bar 205: WM_VSCROLL - mouse click in vertical scroll bar 206: WM_PAINT - update window, draw objects 207: WM_DESTROY - destroy window 208: 209: COMMENTS: 210: 211: This demonstrates how input messages are received, and what the 212: additional information is that comes with the message. 213: 214: ****************************************************************************/ 215: 216: LONG APIENTRY MainWndProc( 1.1.1.3 ! root 217: HWND hWnd, ! 218: UINT message, ! 219: UINT wParam, ! 220: LONG lParam) 1.1 root 221: { 222: FARPROC lpProcAbout; 223: 224: HDC hDC; /* display-context variable */ 225: PAINTSTRUCT ps; /* paint structure */ 226: CHAR HorzOrVertText[12]; 227: CHAR ScrollTypeText[20]; 228: RECT rect; 229: 230: switch (message) { 1.1.1.3 ! root 231: case WM_COMMAND: ! 232: if (LOWORD(wParam) == IDM_ABOUT) { ! 233: lpProcAbout = MakeProcInstance((FARPROC)About, hInst); ! 234: ! 235: DialogBox(hInst, ! 236: "AboutBox", ! 237: hWnd, ! 238: lpProcAbout); ! 239: ! 240: FreeProcInstance(lpProcAbout); ! 241: break; ! 242: } ! 243: else ! 244: return (DefWindowProc(hWnd, message, wParam, lParam)); 1.1 root 245: 246: case WM_CREATE: 247: 248: /* Set the timer for five-second intervals */ 249: 1.1.1.3 ! root 250: idTimer = SetTimer(hWnd, 0, 5000, (TIMERPROC)(LPVOID)NULL); 1.1 root 251: 252: break; 253: 254: case WM_MOUSEMOVE: 255: wsprintf(MouseText, "WM_MOUSEMOVE: %x, %d, %d", 256: wParam, LOWORD(lParam), HIWORD(lParam)); 257: InvalidateRect(hWnd, &rectMouse, TRUE); 258: break; 259: 260: case WM_LBUTTONDOWN: 261: wsprintf(ButtonText, "WM_LBUTTONDOWN: %x, %d, %d", 262: wParam, LOWORD(lParam), HIWORD(lParam)); 263: InvalidateRect(hWnd, &rectButton, TRUE); 264: break; 265: 266: case WM_LBUTTONUP: 267: wsprintf(ButtonText, "WM_LBUTTONUP: %x, %d, %d", 268: wParam, LOWORD(lParam), HIWORD(lParam)); 269: InvalidateRect(hWnd, &rectButton, TRUE); 270: break; 271: 272: case WM_LBUTTONDBLCLK: 273: wsprintf(ButtonText, "WM_LBUTTONDBLCLK: %x, %d, %d", 274: wParam, LOWORD(lParam), HIWORD(lParam)); 275: InvalidateRect(hWnd, &rectButton, TRUE); 276: break; 277: 278: case WM_RBUTTONDOWN: 279: wsprintf(ButtonText, "WM_RBUTTONDOWN: %x, %d, %d", 280: wParam, LOWORD(lParam), HIWORD(lParam)); 281: InvalidateRect(hWnd, &rectButton, TRUE); 282: break; 283: 284: case WM_RBUTTONUP: 285: wsprintf(ButtonText, "WM_RBUTTONUP: %x, %d, %d", 286: wParam, LOWORD(lParam), HIWORD(lParam)); 287: InvalidateRect(hWnd, &rectButton, TRUE); 288: break; 289: 290: case WM_RBUTTONDBLCLK: 291: wsprintf(ButtonText, "WM_RBUTTONDBLCLK: %x, %d, %d", 292: wParam, LOWORD(lParam), HIWORD(lParam)); 293: InvalidateRect(hWnd, &rectButton, TRUE); 294: break; 295: 296: case WM_KEYDOWN: 297: wsprintf(KeyboardText, "WM_KEYDOWN: %x, %x, %x", 298: wParam, LOWORD(lParam), HIWORD(lParam)); 299: InvalidateRect(hWnd, &rectKeyboard, TRUE); 300: break; 301: 302: case WM_KEYUP: 303: wsprintf(KeyboardText, "WM_KEYUP: %x, %x, %x", 304: wParam, LOWORD(lParam), HIWORD(lParam)); 305: InvalidateRect(hWnd, &rectKeyboard, TRUE); 306: break; 307: 308: case WM_CHAR: 309: wsprintf(CharacterText, "WM_CHAR: %c, %x, %x", 310: wParam, LOWORD(lParam), HIWORD(lParam)); 311: InvalidateRect(hWnd, &rectCharacter, TRUE); 312: break; 313: 314: case WM_TIMER: 315: wsprintf(TimerText, "WM_TIMER: %d seconds", 316: nTimerCount += 5); 317: InvalidateRect(hWnd, &rectTimer, TRUE); 318: break; 319: 320: case WM_HSCROLL: 321: case WM_VSCROLL: 322: strcpy(HorzOrVertText, 323: (message == WM_HSCROLL) ? "WM_HSCROLL" : "WM_VSCROLL"); 324: strcpy(ScrollTypeText, 325: (GET_WM_HSCROLL_CODE(wParam, lParam) == SB_LINEUP) ? "SB_LINEUP" : 326: (GET_WM_HSCROLL_CODE(wParam, lParam) == SB_LINEDOWN) ? "SB_LINEDOWN" : 327: (GET_WM_HSCROLL_CODE(wParam, lParam) == SB_PAGEUP) ? "SB_PAGEUP" : 328: (GET_WM_HSCROLL_CODE(wParam, lParam) == SB_PAGEDOWN) ? "SB_PAGEDOWN" : 329: (GET_WM_HSCROLL_CODE(wParam, lParam) == SB_THUMBPOSITION) ? "SB_THUMBPOSITION" : 330: (GET_WM_HSCROLL_CODE(wParam, lParam) == SB_THUMBTRACK) ? "SB_THUMBTRACK" : 331: (GET_WM_HSCROLL_CODE(wParam, lParam) == SB_ENDSCROLL) ? "SB_ENDSCROLL" : "unknown"); 332: wsprintf(ScrollText, "%s: %s, %x, %x", 333: (LPSTR)HorzOrVertText, 334: (LPSTR)ScrollTypeText, 335: GET_WM_HSCROLL_POS(wParam, lParam), 336: (INT)GET_WM_HSCROLL_HWND(wParam, lParam)); 337: InvalidateRect(hWnd, &rectScroll, TRUE); 338: break; 339: 340: case WM_PAINT: 341: hDC = BeginPaint (hWnd, &ps); 342: 343: if (IntersectRect(&rect, &rectMouse, &ps.rcPaint)) 344: TextOut(hDC, rectMouse.left, rectMouse.top, 345: MouseText, strlen(MouseText)); 346: if (IntersectRect(&rect, &rectButton, &ps.rcPaint)) 347: TextOut(hDC, rectButton.left, rectButton.top, 348: ButtonText, strlen(ButtonText)); 349: if (IntersectRect(&rect, &rectKeyboard, &ps.rcPaint)) 350: TextOut(hDC, rectKeyboard.left, rectKeyboard.top, 351: KeyboardText, strlen(KeyboardText)); 352: if (IntersectRect(&rect, &rectCharacter, &ps.rcPaint)) 353: TextOut(hDC, rectCharacter.left, rectCharacter.top, 354: CharacterText, strlen(CharacterText)); 355: if (IntersectRect(&rect, &rectTimer, &ps.rcPaint)) 356: TextOut(hDC, rectTimer.left, rectTimer.top, 357: TimerText, strlen(TimerText)); 358: if (IntersectRect(&rect, &rectScroll, &ps.rcPaint)) 359: TextOut(hDC, rectScroll.left, rectScroll.top, 360: ScrollText, strlen(ScrollText)); 361: 362: EndPaint(hWnd, &ps); 363: break; 364: 365: case WM_DESTROY: 1.1.1.3 ! root 366: /* Bug?, SetTimer returns an int, KillTimer takes a WORD*/ 1.1 root 367: KillTimer(hWnd, (WORD)idTimer); /* Stops the timer */ 368: PostQuitMessage(0); 369: break; 370: 1.1.1.3 ! root 371: default: ! 372: return (DefWindowProc(hWnd, message, wParam, lParam)); 1.1 root 373: } 1.1.1.3 ! root 374: return (0); 1.1 root 375: } 376: 377: 378: /**************************************************************************** 379: 380: FUNCTION: About(HWND, unsigned, WORD, LONG) 381: 382: PURPOSE: Processes messages for "About" dialog box 383: 384: MESSAGES: 385: 1.1.1.3 ! root 386: WM_INITDIALOG - initialize dialog box ! 387: WM_COMMAND - Input received 1.1 root 388: 389: ****************************************************************************/ 390: 391: BOOL APIENTRY About( 1.1.1.3 ! root 392: HWND hDlg, ! 393: UINT message, ! 394: UINT wParam, ! 395: LONG lParam) 1.1 root 396: { 397: switch (message) { 1.1.1.3 ! root 398: case WM_INITDIALOG: ! 399: return (TRUE); 1.1 root 400: 1.1.1.3 ! root 401: case WM_COMMAND: ! 402: if (LOWORD(wParam) == IDOK) { ! 403: EndDialog(hDlg, TRUE); ! 404: return (TRUE); ! 405: } ! 406: break; 1.1 root 407: } 408: return (FALSE); 1.1.1.3 ! root 409: UNREFERENCED_PARAMETER(lParam); 1.1 root 410: }
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