LAnnAutomation::GetPolyFillMode

Summary

Determines how a Polygon annotation with crossing lines is filled.

Syntax

#include "ltwrappr.h"

virtual L_UINT LAnnAutomation::GetPolyFillMode()

Returns

The polygonal fill-mode constant. Possible fill mode values are:

Value	Meaning
ANNPOLYFILL_WINDING	[0] All pixels that are inside the resulting exterior lines are filled.
ANNPOLYFILL_ALTERNATE	[1] The filled area includes the area between odd-numbered and even-numbered polygon sides on each scan line.

$image\winding.gif$

Required DLLs and Libraries

LTANN
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 and updates the property of the object
passed by the caller

L_INT LAnnAutomation_GetPolyFillModeExample(LAnnAutomation  * pAnnObject) 
 
{ 
   L_INT nRet; 
 
   L_UINT PolyFillMode; /* Object's polygonal fill mode  
 */ 
 
   /* Change the fill mode */ 
 
   PolyFillMode = pAnnObject->GetPolyFillMode(); 
 
   if (PolyFillMode == ANNPOLYFILL_WINDING) 
   { 
      nRet = pAnnObject->SetPolyFillMode(ANNPOLYFILL_ALTERNATE,  0); 
      if(nRet != SUCCESS) 
         return nRet; 
   } 
 
   else 
   { 
      nRet = pAnnObject->SetPolyFillMode(ANNPOLYFILL_WINDING, 0); 
      if(nRet != SUCCESS) 
         return nRet; 
   } 
 
   return SUCCESS; 
}