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LFileSettings::GetViewMode2D

Summary

Gets the current view port mode used when loading 3D file formats.

Syntax

#include "ltwrappr.h"

static L_INT LFileSettings::GetViewMode2D()

Returns

The current view mode. Possible values are:

Value	Meaning
L2D_USE_BEST	Fit the drawing into the current viewport width and height. Final image size is less than or equal to the viewport size.
L2D_USE_WIDTH	Use the current viewport width. Calculate new height, preserving the aspect ratio. Final image size has the same width as the current viewport width, with the height less than or equal to the current viewport height.
L2D_USE_HEIGHT	Use the current viewport height. Calculate the new width, preserving the aspect ratio. Final image size has the same height as the current viewport height, with the width less than or equal to the current viewport width.
L2D_USE_WIDTH_HEIGHT	Use both the width and the height (stretching image if necessary). Final image size has the same width and height as the current viewport size.

Comments

To set the view mode, use LFileSettings::SetViewMode2D.

When working with DXF files, you can use the Vector features, available in selected products, or you can use the Main C++ Class Library.

If you use the Main C++ Class Library for loading (using the standard loading functions), you can modify the view port and view mode using the following functions:

This function can be used with the following Vector file formats: DXF, DWG, WMF, EMF, PCT, CGM, DRW, PLT, TIF (with a DXF saved internally) and Intergraph Vector. For more information on these file formats and their availability, refer to LEADTOOLS Vector Formats.

Required DLLs and Libraries

LTFIL
File format DLLs
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 LFileSettings__GetViewMode2DExample(HWND hWnd) 
{ 
   L_INT nRet; 
   L_TCHAR szBuffer[ 80 ];     /* buffer to hold the message */ 
   L_INT nViewportMode;       /* current viewport mode */ 
   L_INT nViewportWidth;      /* current viewport width */ 
   L_INT nViewportHeight;     /* current viewport height */ 
 
   /* Get viewport mode, width and height */ 
   nViewportMode = LFileSettings::GetViewMode2D(); 
   nRet = LFileSettings::GetViewport2D( &nViewportWidth, &nViewportHeight ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   /* format into a message box */ 
   wsprintf( szBuffer, 
             TEXT("Viewport mode = %d\nWidth = %d\nHeight = %d"), 
             nViewportMode, nViewportWidth, nViewportHeight ); 
 
   MessageBox( hWnd, szBuffer, TEXT("Viewport Settings"), 0 ); 
 
   return SUCCESS; 
}