osdep/getch2-win.c

   1 /* windows TermIO for MPlayer          (C) 2003 Sascha Sommer */
   2
   3 // See  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/WinUI/WindowsUserInterface/UserInput/VirtualKeyCodes.asp
   4 // for additional virtual keycodes
   5
   6
   7 #include <windows.h>
   8 #include "keycodes.h"
   9 #include "input/input.h"
  10
  11 int mp_input_win32_slave_cmd_func(int fd,char* dest,int size){
  12   DWORD retval;
  13   HANDLE stdin = GetStdHandle(STD_INPUT_HANDLE);
  14   if(!PeekNamedPipe(stdin, NULL, size, &retval, NULL, NULL) || !retval){
  15           return MP_INPUT_NOTHING;
  16   }
  17   if(retval>size)retval=size;
  18   ReadFile(stdin, dest, retval, &retval, NULL);
  19   if(retval)return retval;
  20   return MP_INPUT_NOTHING;
  21 }
  22
  23 int screen_width=80;
  24 int screen_height=24;
  25 char * erase_to_end_of_line = NULL;
  26
  27 void get_screen_size(){
  28 }
  29
  30 static HANDLE stdin;
  31 static int getch2_status=0;
  32
  33 int getch2(int time){
  34         INPUT_RECORD eventbuffer[128];
  35     DWORD retval;
  36         int i=0;
  37     if(!getch2_status)return -1;
  38     /*check if there are input events*/
  39         WaitForSingleObject(stdin, time);
  40         if(!GetNumberOfConsoleInputEvents(stdin,&retval))
  41         {
  42                 printf("getch2: can't get number of input events: %i\n",GetLastError());
  43                 return -1;
  44         }
  45     if(retval<=0)return -1;
  46
  47         /*read all events*/
  48         if(!ReadConsoleInput(stdin,eventbuffer,128,&retval))
  49         {
  50                 printf("getch: can't read input events\n");
  51                 return -1;
  52         }
  53
  54         /*filter out keyevents*/
  55     for (i = 0; i < retval; i++)
  56     {
  57                 switch(eventbuffer[i].EventType)
  58                 {
  59                         case KEY_EVENT:
  60                                 /*only a pressed key is interresting for us*/
  61                                 if(eventbuffer[i].Event.KeyEvent.bKeyDown == TRUE)
  62                                 {
  63                                         /*check for special keys*/
  64                                         switch(eventbuffer[i].Event.KeyEvent.wVirtualKeyCode)
  65                                         {
  66                                         case VK_HOME:
  67                                                 return KEY_HOME;
  68                                         case VK_END:
  69                                                 return KEY_END;
  70                                         case VK_DELETE:
  71                                                 return KEY_DEL;
  72                     case VK_INSERT:
  73                                                 return KEY_INS;
  74                                         case VK_BACK:
  75                                                 return KEY_BS;
  76                                         case VK_PRIOR:
  77                                                 return KEY_PGUP;
  78                                         case VK_NEXT:
  79                                                 return KEY_PGDWN;
  80                                         case VK_RETURN:
  81                                                 return KEY_ENTER;
  82                                         case VK_ESCAPE:
  83                                                 return KEY_ESC;
  84                                         case VK_LEFT:
  85                                                 return KEY_LEFT;
  86                                         case VK_UP:
  87                                                 return KEY_UP;
  88                                         case VK_RIGHT:
  89                                                 return KEY_RIGHT;
  90                                         case VK_DOWN:
  91                                                 return KEY_DOWN;
  92                     case VK_SHIFT:
  93                         continue;
  94                                         }
  95                                         /*check for function keys*/
  96                                 if(0x87 >= eventbuffer[i].Event.KeyEvent.wVirtualKeyCode && eventbuffer[i].Event.KeyEvent.wVirtualKeyCode >= 0x70)
  97                                                 return (KEY_F + 1 + eventbuffer[i].Event.KeyEvent.wVirtualKeyCode - 0x70);
  98
  99                                         /*only characters should be remaining*/
 100                                         //printf("getch2: YOU PRESSED \"%c\" \n",eventbuffer[i].Event.KeyEvent.uChar.AsciiChar);
 101                                     return eventbuffer[i].Event.KeyEvent.uChar.AsciiChar;
 102                                 }
 103                                 break;
 104
 105                         case MOUSE_EVENT:
 106             case WINDOW_BUFFER_SIZE_EVENT:
 107             case FOCUS_EVENT:
 108             case MENU_EVENT:
 109             default:
 110                                 //printf("getch2: unsupported event type");
 111                             break;
 112         }
 113     }
 114         return -1;
 115 }
 116
 117
 118 void getch2_enable(){
 119         DWORD retval;
 120     stdin = GetStdHandle(STD_INPUT_HANDLE);
 121         if(!GetNumberOfConsoleInputEvents(stdin,&retval))
 122         {
 123                 printf("getch2: %i can't get number of input events  [disabling console input]\n",GetLastError());
 124                 getch2_status = 0;
 125         }
 126     else getch2_status=1;
 127 }
 128
 129 void getch2_disable(){
 130     if(!getch2_status) return; // already disabled / never enabled
 131     getch2_status=0;
 132 }
 133