virtual L_INT LMarker::SetAsGlobalMarkers(uFlags)
Sets the metadata markers to be used in the current thread.
Reserved for future use. Pass 0.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
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.
Win32, x64.
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;
}
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