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LAnnPolygon::EnumerateHandles

Summary

Calls the LAnnPolygon::EnumHandleCallBack function for ALL handles (both default and user-defined) for an annotation object.

Syntax

#include "ltwrappr.h"

virtual L_INT LAnnPolygon::EnumerateHandles()

Returns

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

Comments

Use this function to get information about all annotation handles for an annotation object.

Polygon that this function returns information about both default annotation handles and user-defined annotation handles.

This function can also be used to change some of the properties of an annotation handle.

For more information, refer to the LAnnPolygon::EnumHandleCallBack function.

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

/*<struct>*/ 
#if defined(MyAnnPolygon) 
class MyAnnPolygon: public LAnnPolygon 
{ 
   public:  
      virtual L_INT EnumHandleCallBack(HANNOBJECT hObject, pANNHANDLEINFO pHandleInfo);  
}; 
 
#endif 
/*</struct>*/ 
 
L_INT MyAnnPolygon::EnumHandleCallBack(HANNOBJECT hObject, pANNHANDLEINFO pHandleInfo)  
{ 
	UNREFERENCED_PARAMETER(hObject); 
 
 
   pHandleInfo->bVisible = TRUE;  
 
   if (pHandleInfo->nType == ANNHANDLETYPE_DEFAULT_HANDLE)  
 
   { 
 
      pHandleInfo->nShape = ANNHANDLE_SHAPE_SQUARE;  
 
      pHandleInfo->crFill = RGB(0,0,255);  
 
   } 
 
   else 
 
   { 
 
      pHandleInfo->nShape = ANNHANDLE_SHAPE_CIRCLE;  
 
      pHandleInfo->crFill = RGB(0,255,0);  
 
   } 
 
   return SUCCESS_CHANGE;  
 
} 
 
L_INT LAnnPolygon_EnumerateHandlesExample(MyAnnPolygon *LPolygon)  
{ 
	L_INT nRet; 
 
   LPolygon->EnableCallBack(TRUE);  
 
   nRet = LPolygon->EnumerateHandles(); 
	if(nRet != SUCCESS) 
		return nRet; 
 
	return SUCCESS; 
}