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分享如何解决API参数的问题？？？？？？？？？
我使用API函数的时候，系统说明的类型是LONG类型的值参数，而我的参数是超过LONG的表示范围的，如何解决？？？？API函数是
Public Declare Function DeviceIoControl Lib "kernel32" Alias "DeviceIoControl" (ByVal hDevice As Long, ByVal dwIoControlCode As Long, lpInBuffer As Any, ByVal nInBufferSize As Long, lpOutBuffer As Any, ByVal nOutBufferSize As Long, lpBytesReturned As Long, lpOverlapped As OVERLAPPED) As Long
其中我实际参数dwIOControlCode 超过long如何
Public Declare Function DeviceIoControl Lib "kernel32" Alias "DeviceIoControl" (ByVal hDevice As Long, ByVal dwIoControlCode As Long, lpInBuffer As Any, ByVal nInBufferSize As Long, lpOutBuffer As Any, ByVal nOutBufferSize As Long, lpBytesReturned As Long, lpOverlapped As OVERLAPPED) As Long
其中我实际参数dwIOControlCode 超过long如何
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James0001 2003-02-21
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超过long?
long的范围是 &h0 - &hffffffff !
long的范围是 &h0 - &hffffffff !
chenxin790311 2003-02-21
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我觉的很奇怪，这个函数dwiocontrolcode的值msdn上不是有介绍吗，怎么会超过long呢
zhp80 2003-02-21
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不可想象
