LBitmapWindow::AddZoomView

#include "ltwrappr.h"

L_INT LBitmapWindow::AddZoomView(pZoomViewProps)

pointer to a ZOOMVIEWPROPS structure

Creates a new Zoom View and associates it with the bitmap window control.

Parameter	Description
pZoomViewProps	Pointer to the ZOOMVIEWPROPS structure that contains the Zoom View settings to be created for the class object.

Returns

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

Comments

Starts a Zoom View procedure by attaching a zoomed view to the bitmap window.

When the zoomed view is no longer needed, call the LBitmapWindow::DestroyZoomView function to stop the specified Zoom View procedure and to detach it from the window handle.

For more information on the Zoom View options, refer to the ZOOMVIEWPROPS structure.

Required DLLs and Libraries

LTZMV

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.

Example

L_INT LBitmapWindow__AddZoomViewExample(LBitmapWindow &BmpWnd) 
{ 
   L_INT nRet = 0; 
   ZOOMVIEWPROPS ZoomViewProps; 
   memset(&ZoomViewProps,0,sizeof(ZOOMVIEWPROPS)); 
   ZoomViewProps.uStructSize = sizeof(ZOOMVIEWPROPS); 
   SetRect(&ZoomViewProps.rcSrc, 0, 0, 100*100, 100*100); 
   SetRect(&ZoomViewProps.rcDst, 100*100, 100*100, 200*100, 200*100); 
   ZoomViewProps.nZoom = 200; 
   ZoomViewProps.bCallouts = TRUE; 
   ZoomViewProps.bForceDst = FALSE; 
   ZoomViewProps.crCallout = RGB(255,0,0); 
   ZoomViewProps.nCalloutPenStyle = 1; 
   ZoomViewProps.crZoomViewBorder = RGB(0,255,0); 
   ZoomViewProps.uZoomViewBorderStyle = ZOOMVIEWBORDERSTYLE_3D; 
   ZoomViewProps.nZoomViewPenStyle = 1; 
   ZoomViewProps.crSrcBorder = RGB(0,0,255); 
   ZoomViewProps.uSrcBorderStyle = 2; 
   ZoomViewProps.nSrcPenStyle = 0; 
   ZoomViewProps.bEnabled = TRUE; 
   nRet = BmpWnd.AddZoomView(&ZoomViewProps); 
   if(nRet != SUCCESS) 
      return nRet; 
   BmpWnd.EnableHiliteZoomView(!BmpWnd.IsHiliteZoomViewEnabled()); 
   BmpWnd.SetToolType (TOOL_ZOOMVIEW); 
   BmpWnd.EnableDoubleBuffer (TRUE); 
   return SUCCESS; 
}

Help Version 19.0.2017.10.27

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LEADTOOLS Raster Imaging C++ Class Library Help

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Summary of Features

Functions:	LBitmapWindow::HasZoomView, LBitmapWindow::GetZoomViewProps, LBitmapWindow::UpdateZoomView, LBitmapWindow::DestroyZoomView, LBitmapWindow::GetZoomViewsCount, Class Members.
Topics:	Using the Zoom View
	Raster Image Functions: Displaying Images