Sets a position constraint for this window. If the old or new constraint is %GTK_WIN_POS_CENTER_ALWAYS, this will also cause the window to be repositioned to satisfy the new constraint.
a position constraint.
See Implementation
Sets a position constraint for this window. If the old or new constraint is %GTK_WIN_POS_CENTER_ALWAYS, this will also cause the window to be repositioned to satisfy the new constraint.