Take screenshot of my window

[JustBeginer]

Hi Friends,
I've wrote a simple program for 3D graphic.
I want to take a screenshot of the window where my objects are shown.I've tried to do that, but...
I take the screenshot from the upper left corner on the main screen.
Thanks a lot for the heplp in advance.
//--------------------------------------------------
void save_snap (){
GdkDrawable *root;
GdkWindow *parent;
root = gdk_get_default_root_window ();
pixbuf = gdk_pixbuf_get_from_drawable (NULL, root, NULL, 0,0 0, 0, (GLint)area->allocation.width,(GLint)area->allocation.height);
//save to file ...
}
//--------------------------------------------------

 

[thedaver]

The Gimp has a very nice screenshot capability.

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[ppc386]

If you have ImageMagick, you can just do this
from a command line (or script)

xwd -root | convert - screenshot.jpg

 

[JustBeginer]

Thanks a lot guys!
I found a decision.