communicating Dialog with in a dialog in mfc

Question

如何在MFC中将对话框1的对话框中的消息通信或发送到对话框2（对话框1的子对话框）

Answer 1

1) #define MYMSG WM_USER + 3

2) define and implement disp. function in your dialog LRESULT OnMyMsg(WPARAM w, LPARAM l);

3) Add code to your message map ON_MESSAGE(MYMSG,OnMyMsg)

4) Send message myDlgPtr->SendMessage(MYMSG,0,0);

http://msdn.microsoft.com/en-us/library/ms644950(v=vs.85).aspx