LBitmapWindow::PanWndCallBack

#include "ltwrappr.h"

virtual L_VOID LBitmapWindow::PanWndCallBack(uFlag, prcPan)

Called to notify the main window of changes to the associated Pan Window.

Parameters

L_UINT uFlag

Flag indicating the reason for the Pan Window notification. Possible values are:

Value Meaning
PANWIN_CREATED [0] Pan Window was created.
PANWIN_UPDATED [1] Pan Window was updated/repainted.
PANWIN_DESTROYED [2] Pan Window was destroyed.
PANWIN_MOVED [3] Pan Window was moved.
PANWIN_REPAINT [4] Pan Window was repainted.

LPRECT prcPan

Pointer to a RECT that contains the current coordinates of the Pan Rect in 1:1 zoom factor, when uFlag = PANWIN_UPDATED. You must convert these coordinates to match your main window's current zoom factor.

Returns

None.

Comments

This function will be called when the Pan Window updates itself when responding to end-user input, or when the Pan Window repaints itself after being invalidated.

You can use this callback as a notification that the Pan Window has been updated by the end-user. You can also use this function to do your own custom painting in the Pan Window.

Required DLLs and Libraries

Platforms

Win32, x64.

See Also

Example

For an example, refer to LBitmapWindow::CreatePanWnd.

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