Sets the icon for @window. Warns on failure if @err is %NULL.
This function is equivalent to calling gtk_window_set_icon() with a pixbuf created by loading the image from @filename.
location of icon file
%TRUE if setting the icon succeeded.
GException on failure.
2.2
See Implementation
Sets the icon for @window. Warns on failure if @err is %NULL.
This function is equivalent to calling gtk_window_set_icon() with a pixbuf created by loading the image from @filename.