whandle.c

详细介绍了一篇关于pci开发的接口芯片

/*  CXL - Copyright (c) 1987-1989 by Mike Smedley - All Rights Reserved  */
/*  WHANDLE.C   - returns the handle of the active window  */

#include "cxlwin.h"

WINDOW whandle(void)
{
    /* test for active window */
    if(!_winfo.total) {
        _winfo.errno=W_NOACTIVE;
        return(0);
    }

    /* return normally */
    _winfo.errno=W_NOERROR;
    return(_winfo.active->whandle);
}