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int WritePort(UCHAR Port,UCHAR Value){ DWORD dwResult = 0;UCHAR PV[2] = {Port,Value};if (!DeviceIoControl(hDevice,EVENT_WRITEPORT,...全文
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Always!978：第一个帖子的参数也不对吧，&PV？PV？(2004-01-14 10:17)
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hummingbird：啊，我真是猪头，我把DRV下DEVICE函数对应SWITCH的操作给删了，原来会这样报错。。。。。(2004-01-07 15:07)
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y5318：倒数第二个参数好像有问题，（摘字msdn） If lpOverlapped is NULL, lpBytesReturned cannot be NULL. Even when an operation produces no output data, and lpOutBuf...(2004-01-07 13:28)
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hummingbird：甚至我用 if (!DeviceIoControl(hDevice, EVENT_CLOSE, NULL, 0 NULL, 0, &dwResult, NULL) ) return GetLastError(); GetLastError（）也是...(2004-01-07 12:31)
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hummingbird：试过了，还试过2*sizeof(UCHAR),感觉不象只是单纯 的参数错那么简单，是不是整个驱动程序哪有问题(2004-01-07 12:16)
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computer197605：将 2 改成strlen(pv) 8试试(2004-01-07 12:08)
