错误2440.。我该怎么做啊
在vc++中用mfc作regular dll
是关于hook的；；；；；；
g_hhook = ::SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC) KeyboardProc, theApp.m_hInstance, 0);
就是这句
错误提示： error C2440: 'type cast' : cannot convert from '' to 'long (__stdcall *)(int,unsigned int,long)'
None of the functions with this name in scope match the target type

哪里有错啊；；；

具体代码：


#pragma data_seg("Shared")
HHOOK g_hhook=NULL;
#pragma data_seg()

LRESULT WINAPI CS3DHookApp::KeyboardProc(int nCode, WPARAM wParam, LPARAM lParam)
{

/*BOOL bKeyUp = lParam & (1 << 31);
if (bKeyUp && wParam == VK_F12 && nCode == HC_ACTION) {
AfxMessageBox("ok");
}

return ::CallNextHookEx(g_hhook, nCode, wParam ,lParam);
*/

}


BOOL _declspec(dllexport) WINAPI CS3DHookApp::InstallHook()
{
if (g_hhook != NULL)
return false;
g_hhook = ::SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC) KeyboardProc, theApp.m_hInstance, 0);

return g_hhook!=NULL;
}

BOOL _declspec(dllexport) WINAPI CS3DHookApp::UninstallHook()
{
return ::UnhookWindowsHookEx(g_hhook);
}


关键就这一个错误。。其他错误自己纠正了




[解决办法]
>>None of the functions with this name in scope match the target type
意思在上下文中找不到KeyboardProc函数

把KeyboardProc函数定义成static的

[解决办法]
LRESULT CALLBACK KeyboardProc(
int code, // hook code
WPARAM wParam, // virtual-key code
LPARAM lParam // keystroke-message information
);
不在类中
[解决办法]