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Creates default device contexts for the window.
virtual InitialiseWindow( HWND hwnd );
Parameters
- hwnd
- Window handle.
Return Values
Returns an HRESULTvalue. Current implementation returns NOERROR.
Remarks
The base window class creates a window and a worker thread. The worker thread is responsible for pulling messages from the window's input queue and dispatching them as appropriate. The window and its thread are created by CBaseWindow::PrepareWindowand destroyed in CBaseWindow::DoneWithWindow. The window should be initialized through CBaseWindow::InitialiseWindowand uninitialized through CBaseWindow::UninitialiseWindow. Having prepared a window and initialized it, the window can be sized using CBaseWindow::ActivateWindowand subsequently hidden using CBaseWindow::InactivateWindow.
The base class creates two device contexts that can be used for drawing. The first is a standard handle to a device context (HDC) for the window; the second is an offscreen HDC. The offscreen HDC often is useful for selecting bitmaps before calling the Microsoft Win32 BitBltor StretchBltfunction to copy the bitmap to the main window. This member function also sets the default stretch mode to be COLORONCOLOR. The member function is virtual so that derived classes can change this default if desired.