Classes and Member Functions > LAnnotationWindow > LAnnotationWindow Member Functions > LAnnotationWindow::MsgProcCallBack

LAnnotationWindow::MsgProcCallBack

#include "ltwrappr.h"

virtual LRESULT LAnnotationWindow::MsgProcCallBack(hWnd, uMsg, wParam, lParam)

HWND hWnd;	handle to the bitmap window
UINT uMsg;	the window message
WPARAM wParam;	the first parameter of the window message
LPARAM lParam;	the second parameter of the window message

This function is called for each message the bitmap window control receives.

Parameter	Description
hWnd	Handle to the bitmap window.
uMsg	The window message.
wParam	The first parameter of the window message.
lParam	The second parameter of the window message.

Returns

The result of processing a specific message.

Comments

Override this function to do your own processing of window events and messages. If you override this function you must call the base class implementation (LBitmapWindow::MsgProcCallBack) for default processing.

LAnnotationWindow overrides this function to handle annotation messages and to do some other processing. If you override this function then you must call the parent-class implementation of this function to allow the annotation window to do its default processing.

LAnnotationWindow::MsgProcCallBack

Returns

Comments

Example