LAnnText::EnumerateHandles

#include "ltwrappr.h"

virtual L_INT LAnnText::EnumerateHandles()

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

Returns

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 a Text annotation object.

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

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

For more information, refer to the LAnnText::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.

See Also

Functions:

Class Members

Topics:

Annotation Functions: Object Properties

 

Implementing Annotations

 

Automated User Interface for Annotations

 

Annotation Functions: Creating and Deleting Annotations

 

Types of Annotations

 

Annotation Functions: Implementing Custom Annotations

 

Annotation Functions: Creating Custom Annotations

 

Fixed Annotations

 

Minimizing Flicker With Double Buffering

 

Annotation Functions: Working with the Toolbar

Example

/*<struct>*/
#if defined(MyAnnText)
class MyAnnText: public LAnnText
{
public: 
   virtual L_INT EnumHandleCallBack(HANNOBJECT hObject, pANNHANDLEINFO pHandleInfo); 
};
#endif
/*</struct>*/
L_INT MyAnnText::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 LAnnText_EnumerateHandlesExample(MyAnnText *LText) 
{
	L_INT nRet;
   
	nRet = LText->EnableCallBack(TRUE); 
	if(nRet != SUCCESS)
		return nRet;
   nRet = LText->EnumerateHandles();
	if(nRet != SUCCESS)
		return nRet;
	return SUCCESS;
}