You should call push_rgb_visual() and pop_rgb_visual() around the creation
of the widgets you want to use the gdk_rgb functions with. They will call
gdk_rgb_init for you.
Note that just calling gdk_rgb_init() will probably work on your system,
but will not always work. On multi visual X servers, the visual GdkRGB
chooses may not be the one that gtk uses as the default. In this case,
GdkRGB will not render correctly.
James.
--
Email: [EMAIL PROTECTED]
WWW: http://www.daa.com.au/~james/
On Sat, 18 Mar 2000, Jesper Skov wrote:
> The calls were segv'ing until I added the gdk_rgb_init call. I don't
> see that anywhere in the pygtk sources - how was the gdk_rgb_ calls
> tested? Relying on some GTK internals to call gdk_rgb_init (curious,
> not flame baiting :)
>
> Cheers,
> Jesper
>
>
>
> 2000-03-18 Jesper Skov <[EMAIL PROTECTED]>
>
> * gtk.py:
> * gtkmodule.c:
> Added gdk_rgb_init.
>
> Index: gtk.py
> ===================================================================
> RCS file: /cvs/gnome/gnome-python/pygtk/gtk.py,v
> retrieving revision 1.41
> diff -u -5 -r1.41 gtk.py
> --- gtk.py 2000/03/03 08:41:57 1.41
> +++ gtk.py 2000/03/18 19:49:28
> @@ -2705,10 +2705,13 @@
> _gtk.gdk_draw_segments(drawable, gc, segs)
> def draw_lines(drawable, gc, points):
> _gtk.gdk_draw_lines(drawable, gc, points)
>
> # these are the gdkrgb functions
> +def gdk_rgb_init():
> + _gtk.gdk_rgb_init()
> +
> def draw_rgb_image(drawable, gc, x, y, width, height,
> dither, buffer, rowstride):
> _gtk.gdk_draw_rgb_image(drawable, gc, x, y, width, height,
> dither, buffer, rowstride)
> def draw_rgb_32_image(drawable, gc, x, y, width, height,
> Index: gtkmodule.c
> ===================================================================
> RCS file: /cvs/gnome/gnome-python/pygtk/gtkmodule.c,v
> retrieving revision 1.50
> diff -u -5 -r1.50 gtkmodule.c
> --- gtkmodule.c 2000/03/13 09:14:23 1.50
> +++ gtkmodule.c 2000/03/18 19:49:43
> @@ -6257,10 +6257,18 @@
> gtk_widget_pop_visual();
> Py_INCREF(Py_None);
> return Py_None;
> }
>
> +static PyObject *_wrap_gdk_rgb_init(PyObject *self, PyObject *args) {
> + if (!PyArg_ParseTuple(args, ":gdk_rgb_init"))
> + return NULL;
> + gdk_rgb_init();
> + Py_INCREF(Py_None);
> + return Py_None;
> +}
> +
> static PyObject *_wrap_gdk_draw_rgb_image(PyObject *self, PyObject *args) {
> PyObject *drawable, *gc, *py_dith;
> gint x, y, width, height, rowstride = -1, len;
> GdkRgbDither dith;
> guchar *rgb_buf;
> @@ -6519,10 +6527,11 @@
> { "gdk_window_foreign_new", _wrap_gdk_window_foreign_new, 1 },
> { "gdk_get_root_win", _wrap_gdk_get_root_win, 1 },
> #endif
> { "gtk_rgb_push_visual", _wrap_gtk_rgb_push_visual, 1 },
> { "gtk_pop_visual", _wrap_gtk_pop_visual, 1 },
> + { "gdk_rgb_init", _wrap_gdk_rgb_init, 1 },
> { "gdk_draw_rgb_image", _wrap_gdk_draw_rgb_image, 1 },
> { "gdk_draw_rgb_32_image", _wrap_gdk_draw_rgb_32_image, 1 },
> { "gdk_draw_gray_image", _wrap_gdk_draw_gray_image, 1 },
> #ifdef HAVE_NUMPY
> { "gdk_draw_array", _wrap_gdk_draw_array, 1 },
>
>
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