Tid bits Windows with VC++

SendMessage & Postmessage API are essentially same, but big difference is SendMessage blocks, while PostMessage returns immediately

In C# to draw Control.CreateGraphics() is called to get a Graphics obj. Finally Dispose() needs to be called on this Graphics object. In MFC you can call GetDC() or CClientDC dc(this) to get DC... In former case ReleaseDC(CDC *p) needs to be called. Other DC's are CWindowDC, CPaintDC...

UpdateData(false) updates data in variable to control while param true does in reverse.

GetDlgItem(ID) returns a CWnd ptr. GetDlgCtrlID(CWnd*) returns ID of control