L_2DGetViewMode

#include "l_bitmap.h"

L_LTFIL_API L_INT L_2DGetViewMode()

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

Returns

The current view mode. Possible values are:

Value	Meaning
L2D_USE_BEST	Fit the drawing into current viewport width and height. Final image size is less than or equal to 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 (stretch image if necessary). Final image size has the same width and height as the current viewport size.

Comments

To set the view mode, use L_2DSetViewMode.

When working with Vector files, you can use the Vector features, available in selected products, or you can use the Raster C API. If you use the Main C API for loading, using the standard loading functions, you can modify the view port and view mode using the following functions:

L_2DGetViewMode

L_2DSetViewMode

L_2DGetViewport

L_2DSetViewport

This function may 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

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

This example gets the current viewport mode and size and shows them in a message box

L_INT Get2DViewModeExample(L_VOID) 
{ 
   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 = nRet = L_2DGetViewMode(); 
   nRet = L_2DGetViewport ( &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( NULL, szBuffer, TEXT("Viewport Settings"), MB_OK ); 
   return SUCCESS; 
}

Help Version 19.0.2017.10.27

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LEADTOOLS Raster Imaging C API Help

Introduction

Version History

Getting Started

LEADTOOLS Raster Imaging Features

Redistributables/Files To Be Included With Your Application

Functions:	L_SetLoadResolution, L_SetPCDResolution, L_SetWMFResolution
	For Vector files: L_2DSetViewMode, L_2DGetViewport, L_2DSetViewport
Topics:	Raster Image Functions: Rasterizing Files