LAnnAutomation::SetPolyFillMode

#include "ltwrappr.h"

virtual L_INT LAnnAutomation::SetPolyFillMode(uPolyFillMode=ANNPOLYFILL_WINDING, uFlags=0)

Sets the value that determines how a polygonal annotation with crossing lines is filled.

Parameters

L_UINT uPolyFillMode

The constant that specifies the polygon fill mode. Possible polygon 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

L_UINT uFlags

Reserved for future versions, use 0.

Returns

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

Comments

This function affects only Polygon objects. For descriptions of the various types of objects and their properties, refer to Types of Annotations.

Required DLLs and Libraries

Platforms

Win32, x64.

See Also

Functions

Topics

Example

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