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
  16 /**********************************************************************
  17  *              GetKeyState                     [USER.106]
  18  */
  19 int GetKeyState(int keycode)
  20 {
  21         switch(keycode) {
  22                 case VK_LBUTTON:
  23                     return MouseButtonsStates[0];
  24                 case VK_MBUTTON:
  25                     return MouseButtonsStates[1];
  26                 case VK_RBUTTON:
  27                     return MouseButtonsStates[2];
  28                 default:
  29                     return 0;
  30                 }
  31 }
  32
  33 /**********************************************************************
  34  *              GetKeyboardState                        [USER.222]
  35  */
  36 void GetKeyboardState(BYTE FAR *lpKeyState)
  37 {
  38         if (lpKeyState != NULL) {
  39                 memcpy(lpKeyState, KeyStateTable, 256);
  40                 }
  41 }
  42
  43 /**********************************************************************
  44  *
  45  *            GetAsyncKeyState        (USER.249)
  46  *
  47  *      Determine if a key is or was pressed.  retval has high-order
  48  * byte set to 1 if currently pressed, low-order byte 1 if key has
  49  * been pressed.
  50  *
  51  *      This uses the variable AsyncMouseButtonsStates (set in event.c)
  52  * which have the mouse button number set to true if the mouse had been
  53  * depressed since the last call to GetAsyncKeyState.
  54  *
  55  *      There should also be some keyboard stuff here... it isn't here
  56  * yet.
  57  */
  58 int GetAsyncKeyState(int nKey)
  59 {
  60         short   retval;
  61
  62         switch (nKey) {
  63
  64            case VK_LBUTTON:
  65                 retval = AsyncMouseButtonsStates[0] |
  66                               (MouseButtonsStates[0] << 8);
  67                 break;
  68            case VK_MBUTTON:
  69                 retval = AsyncMouseButtonsStates[1] |
  70                               (MouseButtonsStates[1] << 8);
  71                 break;
  72            case VK_RBUTTON:
  73                 retval = AsyncMouseButtonsStates[2] |
  74                               MouseButtonsStates[2] << 8;
  75                 break;
  76            default:
  77                 retval = 0;
  78                 break;
  79         }
  80
  81         bzero(AsyncMouseButtonsStates, 3);      /* all states to false */
  82
  83         return retval;
  84 }
  85