C + + Custom control controls send a corresponding message to the parent form

Send a message to the parent form, here only send wm_notify message, the other message is the same

To set a program that sends messages in a function in a control

First, define a dedicated structure for the WM_NOTIFY message.

123456;  // here is the message of the difference code nm.hwndfrom = m_hwnd; // This is the HWND handle of the control Nm.idfrom = GetDlgCtrlID (); // This is the ID of the resulting dialog box

cwnd*  pWnd;     = GetParent ();  Gets the parent form    window if (pWnd! = NULL)    {        pWnd->sendmessage (wm_notify, Nm.idfrom , (LPARAM) &nm);  Send a message to the parent form    }

This allows the message to be sent to the parent form.

In the code of the parent form, only the WM_NOTIFY message needs to be processed, that is, the virtual function that implements the On_notify

BOOL cmycontroldlg::onnotify (WPARAM WPARAM, LPARAM LPARAM, lresult* pResult) {    if (UINT) WPARAM = = idc_custom2)    {        AfxMessageBox (_t (" success "));    }     return cdialogex::onnotify (WParam, LParam, PResult);}

Idc_custom2 This is an ID number that any resource will have

Can be found in the following way

C + + Custom control controls send a corresponding message to the parent form