blank.c

来自「使用于OS/2下的小工具的C源程序,使用于OS/2下的小工具的C源程序」· C语言 代码 · 共 64 行

/*
* BLANKER.C - Screen saver program.
*
*
* PROGRAMMER:	    Martti Ylikoski
* CREATED:	    11.7.1991
*/
static char *VERSION = "Version  1.0" ;
/*
*/

static char *progname ;

#include <stdio.h>
#include <string.h>
#include <memory.h>
#define INCL_DOS
#define INCL_KBD
#define INCL_VIO
#define INCL_DOSPROCESS
#include <os2.h>

typedef struct kbdpacket
{
   unsigned monflags ;
   KBDKEYINFO kbdkeyinfo ;
   unsigned ddflags ;
} KBDBUF ;

KBDBUF kbdbuf ;


int main(int argc, char *argv[])
{
USHORT ret ;
USHORT fWait ;
VIOMODEINFO viomodeinfo ;
KBDKEYINFO  kbdkeyinfo ;
int col, row, outf ;

   fWait = VP_WAIT | VP_OPAQUE ;

   VioPopUp( &fWait, 0 ) ;
   viomodeinfo.cb = sizeof(viomodeinfo) ;
   VioGetMode(&viomodeinfo, 0) ;
   outf = FALSE ;
   while ( outf == FALSE)
      for (row = 0; row < viomodeinfo.row && outf == FALSE ; row ++)
	 for (col = 0 ; col < viomodeinfo.col && outf == FALSE; col ++)
	 {
	    VioSetCurPos(row, col, 0) ;
	    ret = KbdCharIn(&kbdkeyinfo, IO_NOWAIT, 0) ;
	    if (kbdkeyinfo.fbStatus != 0)
	    {
	       outf = TRUE ;
	       break ;
	    }
	 DosSleep(1000L) ;
	 }

   VioEndPopUp(0) ;
   return( 0 ) ;
}