defp16.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 60 行

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*                            Open Watcom Project
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#include <windows.h>
#include <dos.h>
#include <malloc.h>
#include <stdarg.h>

extern CALLBACKPTR vGetCallbackRoutine( PROCPTR fn, va_list al );
extern void *UserProcs[];

/*
 * DefineUserProc16 - define a user callback
 *                  variable parms are either UPD16_CHAR, UPD16_WORD,
 *                  UPD16_DWORD, or UPD16_ENDLIST
 */
int DefineUserProc16( int entnum, PROCPTR routine, ... )
{
    va_list     al;

    if( entnum > GETPROC_USERDEFINED_32 ) {
        return( -1 );
    }
    entnum -= GETPROC_USERDEFINED_1;
    va_start( al, routine );
    UserProcs[ entnum] = vGetCallbackRoutine( routine, al );
    va_end( al );
    return( 0 );

} /* DefineUserProc16 */