leejd: 【技术贴】打印机问题 [阅读: 398] 2006-05-15 06:04:46 为什么我这两个函数取出来的值都是0呢? HDC hDc=Printer()->Handle; GetDeviceCaps(hDc,HORZRES); GetDeviceCaps(hDc,HORZSIZE); 如果改为这样,则提示“printer is not currently printing.” HDC hDc=Printer()->Canvas->Handle;