[GTK+2] gtk_widget_modify_bg() doesn't work on Windows

[Alessandro Francesconi <alessandrofrancesconi live it>]

Hello,

I have a piece of code that shows a matrix of 5x5 GtkButtons. 

Each one must be black or white.


I managed to do this with gtk_widget_modify_bg(), for example:


// prepare colors

GdkColor color_black, color_white;
gdk_color_parse ("black", &color_black);

gdk_color_parse ("white", &color_white);


// assign colors to some buttons...

gtk_widget_modify_bg(GTK_WIDGET(button1), GTK_STATE_NORMAL, &color_black);

gtk_widget_modify_bg(GTK_WIDGET(button2), GTK_STATE_NORMAL, &color_white);



This works under Linux, here is a pic: http://oi44.tinypic.com/5exx79.jpg

But on Windows (8 - 64bit with GTK+ 2.16) the result is this: http://oi40.tinypic.com/k00woj.jpg



Can you help me?