Re: Move decorationless window with mouse

[Gabriel Schulhof <nix go-nix ca>]

Hey!

On Thu, 2007-03-22 at 18:14 -0700, 3saul wrote:
> I had this in mind also. But how would I detect the movements of the mouse
> and where to place the window?
You need to connect to the "button-press-event" signal and the
"motion-notify-event" signal. You also need to enable the reception of
these signals with gtk_widget_add_events:

gtk_widget_add_events (my_window, GDK_POINTER_MOTION_MASK |
GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_HINT_MASK) ;
g_signal_connect (my_window, "button-press-event",
(GCallback)my_window_button_press, NULL) ;
g_signal_connect (my_window, "motion-notify-event",
(GCallback)my_window_motion_notify, NULL) ;

Check http://developer.gnome.org/doc/API/2.0/gtk/GtkWidget.html to see
what the my_window_button_press and my_window_motion_notify functions
have to look like. Then, you can do something like this:

On button press:
 - remember where in the window (x,y) the button was pressed

On mouse move (with button down):
 - Check how much the mouse, which is now at (x1,y1) has moved 
   (x1-x,y1-y) and move the window by just as much

HTH



Gabriel