DisplayImageFile() does not change dimensions of picture control

Hi

I'm setting image of a picture control with DisplayImageFile() + setting the control attribute ATTR_FIT_MODE=VAL_SIZE_TO_IMAGE. The image size is bigger then the control size and I want the control to resize to the image size.

It works fine except when I query the control dimensions with GetCtrlAttribute(panel,control,ATTR_HEIGHT,&height), I get the original size(before calling DisplayImageFile())...

It seems I miss something basic...

Environment: LAB Windows CVI 2012 , Windows 7

Thanks in advance

Ramy