LBitmapWindow::OnZoom

#include "ltwrappr.h"

virtual L_VOID LBitmapWindow::OnZoom(uZoomPercent)

L_UINT uZoomPercent;

the zoom percent

This function is called whenever a zoom operation is requested on the bitmap window.

Parameter

Description

uZoomPercent

The zoom percent. The minimum value is 1.

Returns

None

Comments

Override this function to be notified of any zooming on the displayed bitmap.

A zoom can be requested by the following:

If the zoom occurs because the user has zoomed using the TOOL_ZOOMRECT tool, the zoom percent is updated. You can call LBitmapWindow::GetZoomPercent to get the zoom percent currently used to display the image.

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

Functions:

Class Members

Example

For an example, refer to LBitmapWindow::CreatePanWnd.

Help Version 20.0.2019.12.4
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2019 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS Raster Imaging C++ Class Library Help