L_VecGetObjectTooltip

#include "lvkrn.h"

L_LVKRN_API L_UINT32 L_VecGetObjectTooltip(pVector, pObject, pBuffer, uSize)

pVECTORHANDLE pVector;	/* pointer to the vector handle */
const pVECTOROBJECT pObject;	/* pointer to a structure */
L_TCHAR * pBuffer;	/* pointer to a buffer */
L_UINT32 uSize;	/* size of pBuffer */

Retrieves the tooltip of a vector object.

Parameter	Description
pVector	Pointer to the vector handle.
pObject	Pointer to the VECTOROBJECT structure that contains the vector object for which to get the tooltip.
pBuffer	Pointer to a buffer to be updated with the specified object's tooltip.
uSize	Size of the buffer allocated for pBuffer.

Returns

If pBuffer is NULL, it will return the size of the buffer required for the tooltip string. If pBuffer is not NULL, it will return the number of bytes actually written to the buffer.

Required DLLs and Libraries

LVKRN

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

See Also

Functions:	L_VecSetObjectTooltip, L_VecShowObjectTooltip, L_VecHideObjectTooltip
Topics:	Working with Tooltips
	Tooltips

Example

L_INT VecGetObjectTooltipExample(
   pVECTORHANDLE pVector,
   pVECTOROBJECT pObject,
   L_BOOL bShow)
{
   L_INT             nRet;
   L_UINT32          uSize;
   L_TCHAR*          pszTip;
   VECTORTOOLTIPDESC TooltipDesc;

   nRet  = SUCCESS;
   uSize = L_VecGetObjectTooltip ( pVector, pObject, NULL, 0 );

   pszTip = (L_TCHAR*) malloc( sizeof( L_TCHAR ) * uSize );
   if( NULL == pszTip )
      return ERROR_NO_MEMORY;

   nRet = SUCCESS;
   L_VecGetObjectTooltip ( pVector, pObject, pszTip, uSize );
   if( lstrcmp( pszTip, TEXT("test")) == 0 )
   {
      /* replace the tooltip */ 
      nRet = L_VecSetObjectTooltip ( pVector, pObject, TEXT("Final"));
      if( SUCCESS == nRet )
      {
         if( bShow )
         {
            ZeroMemory( &TooltipDesc, sizeof( TooltipDesc ) );
            TooltipDesc.Point.x = 10;
            TooltipDesc.Point.y = 10;

            TooltipDesc.Pen.lopnColor   = RGB( 0, 0, 0xFF );
            TooltipDesc.Pen.lopnWidth.x = 1;
            TooltipDesc.Brush.lbColor   = RGB( 0xED, 0xF3, 0xBB );
            _tcscpy_s( TooltipDesc.Font.lfFaceName, LF_FACESIZE, TEXT("Helvetica"));
            TooltipDesc.Font.lfHeight = 5;

            nRet = L_VecShowObjectTooltip ( pVector, pObject, &TooltipDesc );
         }
         else
            nRet = L_VecHideObjectTooltip ( pVector, pObject );
      }
   }
   free( pszTip );
   return nRet;
}