在WINBASE.H中,有如下定义
WINBASEAPI BOOL WINAPI DeviceIoControl (HANDLE hDevice, DWORD dwIoControlCode, LPVOID lpInBuf, DWORD nInBufSize, LPVOID lpOutBuf, DWORD nOutBufSize, LPDWORD lpBytesReturned, LPOVERLAPPED lpOverlapped);
但我自己写了一段代码后,鼠标悬停在代码中的DeviceIoControl函数上,发现调用的是却是int __cdecl DeviceIoControl
为什么不是__stdcall呢?如何才能是__stdcall呢?
另,我是在eVC上做的,eVC中没有Calling convention -->_stdcall选项。
WINDEF.H中相关的定义如下#ifdef _MAC
#define CALLBACK PASCAL
#define WINAPI CDECL
#define WINAPIV CDECL
#define APIENTRY WINAPI
#define APIPRIVATE CDECL
#ifdef _68K_
#define PASCAL __pascal
#else
#define PASCAL
#endif
#elif (_MSC_VER >= 800) || defined(_STDCALL_SUPPORTED)
#define CALLBACK __stdcall
#define WINAPI __stdcall
#define WINAPIV __cdecl
#define APIENTRY WINAPI
#define APIPRIVATE __stdcall
#define PASCAL __stdcall
#else
#define CALLBACK
#define WINAPI
#define WINAPIV
#define APIENTRY WINAPI
#define APIPRIVATE
#define PASCAL pascal
#endif
WINBASEAPI BOOL WINAPI DeviceIoControl (HANDLE hDevice, DWORD dwIoControlCode, LPVOID lpInBuf, DWORD nInBufSize, LPVOID lpOutBuf, DWORD nOutBufSize, LPDWORD lpBytesReturned, LPOVERLAPPED lpOverlapped);
但我自己写了一段代码后,鼠标悬停在代码中的DeviceIoControl函数上,发现调用的是却是int __cdecl DeviceIoControl
为什么不是__stdcall呢?如何才能是__stdcall呢?
另,我是在eVC上做的,eVC中没有Calling convention -->_stdcall选项。
WINDEF.H中相关的定义如下#ifdef _MAC
#define CALLBACK PASCAL
#define WINAPI CDECL
#define WINAPIV CDECL
#define APIENTRY WINAPI
#define APIPRIVATE CDECL
#ifdef _68K_
#define PASCAL __pascal
#else
#define PASCAL
#endif
#elif (_MSC_VER >= 800) || defined(_STDCALL_SUPPORTED)
#define CALLBACK __stdcall
#define WINAPI __stdcall
#define WINAPIV __cdecl
#define APIENTRY WINAPI
#define APIPRIVATE __stdcall
#define PASCAL __stdcall
#else
#define CALLBACK
#define WINAPI
#define WINAPIV
#define APIENTRY WINAPI
#define APIPRIVATE
#define PASCAL pascal
#endif
WINAPI 不会有
当初怀疑是调用方式不同而导致了与例子程序(没有源代码,只能看IDA的反汇编)运行结果的不一致。最后发现居然是返回参数的类型不同造成的,真是猪头。故,结贴,发分,来者有份,谢谢各位:)