MFC發送消息中的對象

Question

我可以使用對象發送消息嗎？ 喜歡的東西：

myClass *myObj = new myClass(); 
pDlg->SendMessage(MyEvent, NULL, (LPARAM)&myObj); // Sends without any errors 
... 
afx_msg LRESULT MyApp::GetEvent(WPARAM wParam, LPARAM lParam) 
{ 
    myClass *zxc = new myClass(); 
    zxc = lParam; // Something like this... but doesn't work 
} 

Answer 1

只投的指針有和回酌情：

發件人：

pDlg->SendMessage(MyEvent, NULL, reinterpret_cast<LPARAM>(&myObj)); 

接收機：

afx_msg LRESULT MyApp::GetEvent(WPARAM wParam, LPARAM lParam) 
{ 
    myClass * zxc = reinterpret_cast<myClass*>(lParam); 
    // ... 
}