C / C++ / MFC

// the structure to pass around
class MyStruct 
{ 
public: 
    MyStruct()
    {
        m_pMsg = new char[128];
        lstrcpy(m_pMsg, "Hello World");
    }
 
    ~MyStruct()
    {
       delete [] m_pMsg;
       m_pMsg = NULL;
    }
  
    char *m_pMsg;
 
    void Exec( void )
    {
        AfxMessageBox(m_pMsg);
    }
};
 
// on the sending end
MyStruct myStruct;
COPYDATASTRUCT dataToSend;
     
dataToSend.cbData = sizeof(MyStruct);
dataToSend.lpData = &myStruct;
dataToSend.dwData = 0;  
 
::SendMessage(GetSafeHwnd(), WM_COPYDATA, (WPARAM) GetSafeHwnd(), (LPARAM)&dataToSend);
 
// on the receiving end
COPYDATASTRUCT *dataReceived = (COPYDATASTRUCT *)pCopyDataStruct; 
MyStruct *pStruct = (MyStruct *) dataReceived->lpData;
pStruct->Exec();

vgandhi wrote:

How do you hash two strings in C++
How do you compare two hashes in C++?

Sandy Kinghorn wrote:

we are just not getting the message from Windows for the child window

Sandy Kinghorn wrote:

...used as a child of a modal dialogue...