git.oblomov.eu Git - wine/blob - windows/keyboard.c

   1 /*
   2  * Keyboard related functions
   3  *
   4  * Copyright 1993 Bob Amstadt
   5  */
   6
   7 static char Copyright[] = "Copyright  Bob Amstadt, 1993";
   8
   9 #include "win.h"
  10 #include "windows.h"
  11
  12 extern BOOL MouseButtonsStates[3];
  13 extern BOOL AsyncMouseButtonsStates[3];
  14 extern BYTE KeyStateTable[256];
  15 extern BYTE AsyncKeyStateTable[256];
  16
  17 /**********************************************************************
  18  *              GetKeyState                     [USER.106]
  19  */
  20 int GetKeyState(int keycode)
  21 {
  22         switch(keycode) {
  23                 case VK_LBUTTON:
  24                     return MouseButtonsStates[0];
  25                 case VK_MBUTTON:
  26                     return MouseButtonsStates[1];
  27                 case VK_RBUTTON:
  28                     return MouseButtonsStates[2];
  29                 default:
  30                     return KeyStateTable[keycode];
  31                 }
  32 }
  33
  34 /**********************************************************************
  35  *              GetKeyboardState                        [USER.222]
  36  */
  37 void GetKeyboardState(BYTE FAR *lpKeyState)
  38 {
  39     if (lpKeyState != NULL) {
  40         KeyStateTable[VK_LBUTTON] = MouseButtonsStates[0];
  41         KeyStateTable[VK_MBUTTON] = MouseButtonsStates[1];
  42         KeyStateTable[VK_RBUTTON] = MouseButtonsStates[2];
  43         memcpy(lpKeyState, KeyStateTable, 256);
  44     }
  45 }
  46
  47 /**********************************************************************
  48  *            GetAsyncKeyState        (USER.249)
  49  *
  50  *      Determine if a key is or was pressed.  retval has high-order
  51  * byte set to 1 if currently pressed, low-order byte 1 if key has
  52  * been pressed.
  53  *
  54  *      This uses the variable AsyncMouseButtonsStates and
  55  * AsyncKeyStateTable (set in event.c) which have the mouse button
  56  * number or key number (whichever is applicable) set to true if the
  57  * mouse or key had been depressed since the last call to
  58  * GetAsyncKeyState.
  59  */
  60 int GetAsyncKeyState(int nKey)
  61 {
  62         short   retval;
  63
  64         switch (nKey) {
  65
  66            case VK_LBUTTON:
  67                 retval = AsyncMouseButtonsStates[0] |
  68                               (MouseButtonsStates[0] << 8);
  69                 break;
  70            case VK_MBUTTON:
  71                 retval = AsyncMouseButtonsStates[1] |
  72                               (MouseButtonsStates[1] << 8);
  73                 break;
  74            case VK_RBUTTON:
  75                 retval = AsyncMouseButtonsStates[2] |
  76                               (MouseButtonsStates[2] << 8);
  77                 break;
  78            default:
  79                 retval = AsyncKeyStateTable[nKey] |
  80                               (KeyStateTable[nKey] << 8);
  81                 break;
  82         }
  83
  84         bzero(AsyncMouseButtonsStates, 3);      /* all states to false */
  85         bzero(AsyncKeyStateTable, 256);
  86
  87         return retval;
  88 }
  89