关于DLL参数调用问题
VC的DLL定义函数:
extern "C"
{
bool _declspec(dllexport) OpenPort(int iPort);
}
bool OpenPort(int iPort);
{
return true;
}
VB里的调用:
Private Declare Function OpenPort Lib "GenexControl.dll" (ByVal iPort As Long) As Boolean
运行时,老是说:
实时错误'49',DLL调用约定错误。
请各位大虾拔刀相助,谢谢!