intdos，功能是通用DOS接口 相当于int 21h，用 法是nt intdos(union REGS *inregs, union REGS *outregs)。
intdos介绍
intdos，功能是通用DOS接口 相当于int 21h，用 法是nt intdos(union REGS *inregs, union REGS *outregs)。
程序例
#include
#include
int delete_file(char near *filename)
{
union REGS regs;
int ret;
regs.h.ah = 0x41;
regs.x.dx = (unsigned) filename;
ret = intdos(®s, ®s);
return(regs.x.cflag ? ret : 0);
}
int main(void)
{
int err;
err = delete_file("NOTEXIST.$$$");
if (!err)
printf("Able to delete NOTEXIST.$$$n");
else
printf("Not Able to delete NOTEXIST.$$$n");
return 0;
}
