how to create a window in gimp plugin?

Hello,everybody!

I want to create a window in gimp plugin,so this is my code(part of the
plugin):

/static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[1];
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
GimpRunMode run_mode;
GtkWidget *window;

gtk_init();

/* Setting mandatory output values */
*nreturn_vals = 1;
*return_vals = values;

values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;

/* Getting run_mode - we won't display a dialog if
* we are in NONINTERACTIVE mode */
run_mode = param[0].data.d_int32;

window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(window),"hello");
gtk_widget_show(window);

gtk_main();

}

/but when I ran the plugin in gimp,it didn't work...
and this is the error message:

(hello:12429): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(hello:12429): GLib-GObject-CRITICAL **: g_signal_connect_data:
assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

(hello:12429): LibGimp-CRITICAL **: gimp_window_set_transient: assertion
`gimp_ui_initialized' failed

(hello:12429): Gtk-WARNING **: Screen for GtkWindow not set; you must
always set
a screen for a GtkWindow before using the window

(hello:12429): Gdk-CRITICAL **: gdk_screen_get_default_colormap:
assertion `GDK_IS_SCREEN (screen)' failed

(hello:12429): Gdk-CRITICAL **: gdk_colormap_get_visual: assertion
`GDK_IS_COLORMAP (colormap)' failed

(hello:12429): Gdk-CRITICAL **: gdk_screen_get_default_colormap:
assertion `GDK_IS_SCREEN (screen)' failed

(hello:12429): Gdk-CRITICAL **: gdk_screen_get_root_window: assertion
`GDK_IS_SCREEN (screen)' failed

(hello:12429): Gdk-CRITICAL **: gdk_screen_get_root_window: assertion
`GDK_IS_SCREEN (screen)' failed

(hello:12429): Gdk-CRITICAL **: gdk_window_new: assertion `GDK_IS_WINDOW
(parent)' failed

(hello:12429): Gdk-CRITICAL **:
gdk_window_enable_synchronized_configure: assertion `GDK_IS_WINDOW
(window)' failed

(hello:12429): Gdk-CRITICAL **: gdk_window_set_user_data: assertion
`window != NULL' failed

(hello:12429): Gtk-CRITICAL **: gtk_style_attach: assertion `window !=
NULL' failed

(hello:12429): Gtk-CRITICAL **: gtk_style_set_background: assertion
`GTK_IS_STYLE (style)' failed

(hello:12429): Gtk-CRITICAL **: gtk_paint_flat_box: assertion
`GTK_IS_STYLE (style)' failed

(hello:12429): Gdk-CRITICAL **: gdk_window_set_accept_focus: assertion
`GDK_IS_WINDOW (window)' failed

(hello:12429): Gdk-CRITICAL **: gdk_window_set_focus_on_map: assertion
`GDK_IS_WINDOW (window)' failed

(hello:12429): Gdk-CRITICAL **: gdk_window_set_modal_hint: assertion
`GDK_IS_WINDOW (window)' failed

(hello:12429): Gtk-CRITICAL **: gtk_window_realize_icon: assertion
`widget->window != NULL' failed

(hello:12429): Gtk-WARNING **: Screen for GtkWindow not set; you must
always set
a screen for a GtkWindow before using the window

(hello:12429): Gdk-CRITICAL **: gdk_window_set_geometry_hints: assertion
`GDK_IS_WINDOW (window)' failed

(hello:12429): Gdk-CRITICAL **: gdk_window_unmaximize: assertion
`GDK_IS_WINDOW (window)' failed

(hello:12429): Gdk-CRITICAL **: gdk_window_unstick: assertion
`GDK_IS_WINDOW (window)' failed

(hello:12429): Gdk-CRITICAL **: gdk_window_deiconify: assertion
`GDK_IS_WINDOW (window)' failed

(hello:12429): Gdk-CRITICAL **: gdk_window_unfullscreen: assertion
`GDK_IS_WINDOW (window)' failed

(hello:12429): Gdk-CRITICAL **: gdk_window_set_keep_above: assertion
`GDK_IS_WINDOW (window)' failed

(hello:12429): Gdk-CRITICAL **: gdk_window_set_keep_below: assertion
`GDK_IS_WINDOW (window)' failed

(hello:12429): Gdk-CRITICAL **: gdk_window_show: assertion
`GDK_IS_WINDOW (window)' failed

anyone can tell me how to fix it?

any suggestion is appreciated.



Regards,
Todong Ma.

On Thu, Jul 2, 2009 at 2:01 AM, gbstack<gbstack08@gmail.com> wrote:
> I want to create a window in gimp plugin

I'm not sure if this helps, but when I've created gimp plugins, I've
always used gimp_dialog_new () instead of gtk_window_new ().

For an example, take a look at the scale_dialog () method here:
http://gsoc.rivetsforbreakfast.com/gimp/IBFNBQH.c



Adam Turcotte

On 07/02/2009 08:01 AM, gbstack wrote:
> Hello,everybody!
>
> I want to create a window in gimp plugin,so this is my code(part of the
> plugin):
>
> any suggestion is appreciated.
>

One way that always works is looking at how other plug-ins does it, for
example:
http://git.gnome.org/cgit/gimp/tree/plug-ins/common/decompose.c

Look in/around decompose_dialog()

/ Martin

Hi,

On Thu, 2009-07-02 at 14:01 +0800, gbstack wrote:
> Hello,everybody!
>
> I want to create a window in gimp plugin,so this is my code(part of the
> plugin):

Please have a look at
http://developer.gimp.org/writing-a-plug-in/1/index.html

In particular part III of this tutorial should be helpful.


Sven

Hi,
thanks for your tutorials,plugin examples and suggestions.

now it's fixed,if I use gimp_ui_init instead of gtk_init,I can create a
GtkWindow in gimp plugin now.

thank you all! :-)


Regards,
Todong Ma