Re: Why do I have a grey square instead of a red square?

[Jan Luehr <jluehr gmx net>]

Greetings.

Am Samstag, 13. Juli 2002 18:40 schrieben Sie:
> Greetings,

I added gdk_window_set_colormap(widget -> window, system_colormap); but it
doen't change anything.

Keep smiling
yanosz

> Why do I get a grey square instead of a red square? What's wrong here?
>
> static gint configure_event( GtkWidget *widget, GdkEventConfigure *event )
> {
>   int x,y;
>
>   if(pixmap)
>     gdk_pixmap_unref(pixmap);
>   if(pixmap_red)
>     gdk_pixmap_unref(pixmap_red); //Formulas
>
> pixmap = gdk_pixmap_new(widget->window, //Generate first pixmap
>                           widget->allocation.width,
>                           widget->allocation.height,
>                           -1);
>
>   pixmap_red = gdk_pixmap_new(widget -> window, //Generate second pixmap
>   			      20,20,-1);
>
>
>   gdk_color_parse("red",&color_red); //Parse Red
>
>   x = gdk_color_alloc (system_colormap,&color_red);//Allocate it
>    printf ("Value %d\n",x); //Returns 1
>
>    gc_red = gdk_gc_new(pixmap_red); //Create the gc
>   gdk_gc_set_foreground(gc_red, &color_red); //Set the foreground
>   return TRUE;
>
>
> static gint expose_event (GtkWidget *widget, GdkEventExpose *event) //Event
> {
>   int x;
>   gdk_draw_pixmap(widget->window, //Draw first pixmap (b+w Pixmap)
>                   widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
>                   pixmap,
>                   event->area.x, event->area.y,
>                   event->area.x, event->area.y,
>                   event->area.width, event->area.height);
>   gdk_draw_pixmap(widget->window, //Draw the second one.
>                   gc_red,
>                   pixmap_red,
>                   20,20,
>                   20,20,
>                   20, 20);
>
>   return FALSE;
> }

--
GnuPG Key available at http://www.jluehr.de.vu/public_key.asc