L_GetMarkers

#include "l_bitmap.h"

L_LTFIL_API L_INT L_GetMarkers(phMarkers, uFlags)

L_VOID** phMarkers;	/* pointer to the markers handle */
L_UINT uFlags;	/* flags that determine function behavior */

Gets a copy of the last markers set with L_SetMarkers.

Parameter	Description
phMarkers	Pointer to a variable to be updated with a handle to a copy of the collection of markers last set with L_SetMarkers. This cannot be NULL.
uFlags	Reserved for future use. Pass 0.

Returns

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

Comments

Since you have a copy, anything you do with the handle will not modify the markers, which can be saved by calling a Save function. To modify the markers being saved, call L_SetMarkers.

When the marker collection handle is no longer needed, use L_FreeMarkers function to free it.

When calling L_GetMarkers, the phMarkers parameter cannot be NULL. However, if no markers have been set using L_SetMarkers, the phMarkers parameter will be updated with NULL when the function returns.

Required DLLs and Libraries

LTFIL

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:	L_SetMarkers, L_FreeMarkers
Topics:	Raster Image Functions: Markers
	Working with Markers

Example

This example tells you whether you have set any markers or not

 L_INT GetMarkersExample(L_VOID)
{
   L_INT nRet;
   HANDLE hMarkers;

   if((nRet = L_GetMarkers(&hMarkers, 0)) != SUCCESS)
   {
      MessageBox(NULL, TEXT("Error calling L_GetMarkers!"), TEXT("ERROR"), MB_OK);
      return nRet;
   }
   else
   {
      if(hMarkers)
      {
         MessageBox(NULL, TEXT("You have set markers!"), TEXT("Info"), MB_OK);
         L_FreeMarkers(hMarkers);
      }
      else
         MessageBox(NULL, TEXT("You have not set any markers!"), TEXT("Info"), MB_OK);
   }
   
   return SUCCESS;
}