LBitmapWindow::PanWndCallBack (original) (raw)
Summary
Called to notify the main window of changes to the associated Pan Window.
Syntax
#include "ltwrappr.h"
virtual L_VOID LBitmapWindow::PanWndCallBack(uFlag, prcPan)
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
- LTDIS
- LTDLG
- LTEFX
- LTFIL
- LTIMG
- LTSCR
- LTTWN
- For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.
Platforms
Win32, x64.
See Also
Example
For an example, refer to LBitmapWindow::CreatePanWnd.
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