Installs a global function to be called whenever the user
tries to modify the palette in a color selection.
This function should save the new palette contents, and update
the "gtk-color-palette" GtkSettings property so all
GtkColorSelection widgets will be modified.
Since 2.2
Installs a global function to be called whenever the user tries to modify the palette in a color selection. This function should save the new palette contents, and update the "gtk-color-palette" GtkSettings property so all GtkColorSelection widgets will be modified. Since 2.2