Sets the zoom mode used for displaying the bitmap in the class object's window.


#include "ltwrappr.h"

L_INT LBitmapWindow::SetZoomMode(uMode, bDraw=TRUE)


L_UINT uMode

The zoom mode. Possible values are:

Value Meaning
ZOOM_FIT to fit the bitmap in the window while maintaining the aspect ratio.
ZOOM_STRETCH to stretch the bitmap to the window.
ZOOM_NORMAL to display the bitmap in its normal size.
ZOOM_FITWIDTH to fit the bitmap to the width of the window.
ZOOM_FITHEIGHT to fit the bitmap to the height of the window.

L_BOOL bDraw

Flag that indicates whether to enable or disable repainting the window. Possible values are:

Value Meaning
TRUE Enable repainting of the window.
FALSE Disable repainting of the window.


Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.


When you change the zoom mode, 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


Win32, x64.

See Also


For an example, refer to LBitmapWindow::Repaint.

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LEADTOOLS Raster Imaging C++ Class Library Help