misc/keyboard.c

   1 static char RCSId[] = "$Id: keyboard.c,v 1.2 1993/09/13 18:52:02 scott Exp $";
   2 static char Copyright[] = "Copyright  Scott A. Laird, Erik Bos  1993, 1994";
   3
   4 #include <stdlib.h>
   5 #include <stdio.h>
   6 #include "prototypes.h"
   7 #include "windows.h"
   8 #include "keyboard.h"
   9
  10 int ToAscii(WORD wVirtKey, WORD wScanCode, LPSTR lpKeyState,
  11         LPVOID lpChar, WORD wFlags)
  12 {
  13         int i;
  14
  15         printf("ToAscii (%d,%d)\n",wVirtKey, wScanCode);
  16
  17         /* FIXME: this is not sufficient but better than returing -1 */
  18
  19         for (i = 0 ; i != KeyTableSize ; i++)
  20                 if (KeyTable[i].virtualkey == wVirtKey)  {
  21                         *(BYTE*)lpChar++ = *KeyTable[i].name;
  22                         *(BYTE*)lpChar = 0;
  23                         return 1;
  24                 }
  25
  26         *(BYTE*)lpChar = 0;
  27         return 0;
  28 }
  29
  30 DWORD OemKeyScan(WORD wOemChar)
  31 {
  32         printf("*OemKeyScan (%d)\n",wOemChar);
  33
  34         return wOemChar;
  35 }
  36
  37 /* VkKeyScan translates an ANSI character to a virtual-key and shift code
  38  * for the current keyboard. */
  39
  40 WORD VkKeyScan(WORD cChar)
  41 {
  42         int i;
  43
  44         printf("VkKeyScan (%d)\n",cChar);
  45
  46         for (i = 0 ; i != KeyTableSize ; i++)
  47                 if (KeyTable[i].ASCII == cChar)
  48                         return KeyTable[i].virtualkey;
  49
  50         return -1;
  51 }
  52
  53 int GetKeyboardType(int nTypeFlag)
  54 {
  55   printf("GetKeyboardType(%d)\n",nTypeFlag);
  56   switch(nTypeFlag)
  57     {
  58     case 0:      /* Keyboard type */
  59       return 4;    /* AT-101 */
  60       break;
  61     case 1:      /* Keyboard Subtype */
  62       return 0;    /* There are no defined subtypes */
  63       break;
  64     case 2:      /* Number of F-keys */
  65       return 12;   /* We're doing an 101 for now, so return 12 F-keys */
  66       break;
  67     default:
  68       fprintf(stderr, "Unknown type on GetKeyboardType\n");
  69       return 0;    /* The book says 0 here, so 0 */
  70     }
  71 }
  72
  73 /* MapVirtualKey translates keycodes from one format to another. */
  74
  75 WORD MapVirtualKey(WORD wCode, WORD wMapType)
  76 {
  77         int i;
  78
  79         switch(wMapType) {
  80                 case 0:
  81                         for (i = 0 ; i != KeyTableSize ; i++)
  82                                 if (KeyTable[i].virtualkey == wCode)
  83                                         return KeyTable[i].scancode;
  84                         return 0;
  85
  86                 case 1:
  87                         for (i = 0 ; i != KeyTableSize ; i++)
  88                                 if (KeyTable[i].scancode == wCode)
  89                                         return KeyTable[i].virtualkey;
  90                         return 0;
  91
  92                 case 2:
  93                         for (i = 0 ; i != KeyTableSize ; i++)
  94                                 if (KeyTable[i].virtualkey == wCode)
  95                                         return KeyTable[i].ASCII;
  96                         return 0;
  97
  98                 default:
  99                         fprintf(stderr, "MapVirtualKey: unknown wMapType!\n");
 100                         return 0;
 101         }
 102         return 0;
 103 }
 104
 105 int GetKbCodePage(void)
 106 {
 107         printf("GetKbCodePage()\n");
 108         return 850;
 109 }
 110
 111 int GetKeyNameText(LONG lParam, LPSTR lpBuffer, int nSize)
 112 {
 113         int i;
 114
 115         printf("GetKeyNameText(%d,<ptr>, %d)\n",lParam,nSize);
 116
 117         lParam >>= 16;
 118         lParam &= 0xff;
 119
 120         for (i = 0 ; i != KeyTableSize ; i++)
 121                 if (KeyTable[i].scancode == lParam)  {
 122                         strncpy(lpBuffer, KeyTable[i].name, nSize);
 123                         return strlen(lpBuffer);
 124                 }
 125
 126         *lpBuffer = 0;
 127         return 0;
 128 }