LMarker::SetAsGlobalMarkers

#include "ltwrappr.h"

virtual L_INT LMarker::SetAsGlobalMarkers(uFlags)

L_UINT uFlags;

/* reserved flags */

Sets the metadata markers to be used in the current thread.

Parameter	Description
uFlags	Reserved for future use. Pass 0.

Returns

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

Comments

All save operations performed in this thread will use these markers until LMarker::SetAsGlobalMarkers is called again.

A copy of these markers will be used, so you can delete the marker object when LMarker::SetAsGlobalMarkers returns.

Comments set with LFileSettings::SetComment will take precedence over any comments contained in the markers.

Tags set with LFileSettings::SetTag will take precedence over any user-defined tags contained in the markers.

If the LFile::SaveXXX function is instructed to save a stamp, the stamp will be regenerated from the bitmap and will override whatever Exif stamp is present in the markers.

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:	LMarker::Copy, LMarker::Create, LMarker::Delete, LMarker::DeleteIndex, LMarker::Enum, LMarker::EnumMarkersCallBack, LMarker::Free, LMarker::GetCount, LMarker::GetHandle, LMarker::GetGlobalMarkers, LMarker::GetMarker, LMarker::Insert, LMarker::Load, LMarker::SetHandle, LFile::WriteMetaData, Class Members
Topics:	Raster Image Functions: Markers
	Working with Markers

Example

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName
L_INT LMarker__SetAsGlobalMarkersExample(L_TCHAR * pszFile)
{
   L_INT nRet;
   LMarker   MyMarker;
   LBitmap   Bitmap;
   // load metadata info
   nRet = MyMarker.Load(pszFile, 0);
   if(nRet != SUCCESS)
      return nRet;
   // load the bitmap
   nRet = Bitmap.Load(pszFile);
   if(nRet != SUCCESS)
      return nRet;
   // modify the bitmap. In this case, flip it
   nRet = Bitmap.Flip();
   if(nRet != SUCCESS)
      return nRet;
   // set the metadata markers so they are used in the next save
   nRet = MyMarker.SetAsGlobalMarkers(0);
   if(nRet != SUCCESS)
      return nRet;
   // save the file 
   nRet = Bitmap.Save(MAKE_IMAGE_PATH(TEXT("FlippedFile.jpg")), FILE_EXIF_JPEG, 0, 2, 0, NULL);
   if(nRet != SUCCESS)
      return nRet;
   // reset the markers so they are not used for the next save
   nRet = MyMarker.SetHandle(NULL, TRUE);
   if(nRet != SUCCESS)
      return nRet;
   nRet = MyMarker.SetAsGlobalMarkers(0);
   if(nRet != SUCCESS)
      return nRet;
   // free memory containing the metadata
   nRet = MyMarker.Free();
   if(nRet != SUCCESS)
      return nRet;
   return SUCCESS;
}