LBitmapWindow::UpdateZoomView

#include "ltwrappr.h"

L_INT LBitmapWindow::UpdateZoomView(pZoomViewProps)

pointer to a ZOOMVIEWPROPS structure

Updates the specified Zoom View with new settings.

Parameter	Description
pZoomViewProps	Pointer to the ZOOMVIEWPROPS structure that contains the updated Zoom View settings.

Returns

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

Comments

To change the current options for a Zoom View, change the values in the structure pointed to by pZoomViewProps and pass a pointer to the updated structure to LBitmapWindow::UpdateZoomView.

To attach a zoomed view to a window, call the LBitmapWindow::AddZoomView function.

When a Zoom 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.

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__UpdateZoomViewExample(LBitmapWindow &BmpWnd) 
{ 
   L_UINT uCount,i; 
   L_INT nRet = -1; 
   ZOOMVIEWPROPS ZoomViewProps; 
   memset(&ZoomViewProps,0,sizeof(ZOOMVIEWPROPS)); 
   if(BmpWnd.HasZoomView ()) 
   { 
      uCount = BmpWnd.GetZoomViewsCount (); 
      for(i=0; i < uCount;++i) 
      { 
         ZoomViewProps.uIndex = i; 
         nRet = BmpWnd.GetZoomViewProps(&ZoomViewProps, sizeof(ZoomViewProps)); 
         if(nRet != SUCCESS) 
            return nRet; 
         ZoomViewProps.bCallouts = FALSE; 
         nRet = BmpWnd.UpdateZoomView(&ZoomViewProps); 
         if(nRet != SUCCESS) 
            return nRet; 
      } 
   } 
   return SUCCESS; 
}

Help Version 19.0.2017.10.27

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Summary of Features

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