I create 2 pixmaps equals and put a gtk_timeout_add to swap these
pixmaps (I change the function create_pixmap from support.c from
gladefiles to make this swap), I believe that works, in this way the
pixmap seems to blink. I don't know if it is the better way,
but...works.
The function that make pixmap swap:
int
troca_pixmap(gpointer user_data, char *nome_pixmap, char *filename,
gboolean use_pixmap_interno, GdkPixmap *pixmap_interno)
{
GtkWidget *pixmap;
GdkColormap *colormap;
GdkPixmap *gdkpixmap;
GdkBitmap *mask;
gchar *pathname = NULL;
pixmap = lookup_widget(user_data, nome_pixmap); /* lookup_widget from
support.c from glade */
if(use_pixmap_interno == FALSE)
{
if (!filename || !filename[0])
return -1;
pathname = gnome_pixmap_file (filename);
if (!pathname)
{
g_warning (_("Couldn't find pixmap file: %s"), filename);
return -1;
}
colormap = gtk_widget_get_colormap (user_data);
gdkpixmap = gdk_pixmap_colormap_create_from_xpm (NULL, colormap,
&mask, NULL, pathname);
if (gdkpixmap == NULL)
{
g_warning (_("Couldn't create pixmap from file: %s"), pathname);
g_free (pathname);
return -1;
}
}
else
{
if (pixmap_interno == NULL)
{
g_warning (_("Couldn't create pixmap from pixmap_interno"));
return -1;
}
gdkpixmap = pixmap_interno;
}
if(use_pixmap_interno == FALSE)
{
g_free (pathname);
gtk_pixmap_set(GTK_PIXMAP(pixmap), gdkpixmap, mask);
}
else
gtk_pixmap_set(GTK_PIXMAP(pixmap), gdkpixmap, NULL);
if(use_pixmap_interno == FALSE)
{
gdk_pixmap_unref (gdkpixmap);
gdk_bitmap_unref (mask);
}
return 1;
}
Success
Flavio Alberto
Em 18 Jan 2002 01:13:54 +0530, Rahul Pande escreveu:
> Hi,
>
> please give me some hint on how to solve this...
>
> the problem is that i have already drawn an (arrow)
> widget, and after gtk_main has been called, i will
> monitor a file for input.
>
> when there is input, a function will be called, and
> I have the address of the arrow widget, and now at
> this stage, is there any way to change its color to
> some other, and back, i.e. as if the arrow has flashed
> ....
>
> (i dont want to destroy it and redraw it with another
> color)
>
> regards,
> rahul
>
>
>
>
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>
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