Re: [gnomemm] CanvasImage

[Murray Cumming <murrayc usa net>]

Personally, I'm only likely to investigate this if you are using
gnomemm2. Sorry.

On Mon, 2002-09-09 at 14:36, Koecher Rainer ETR.ETB2 wrote:
> hello everybody, 
> 
> does anyone know how to display an Image in a Gnome Canvas?
> I tried it as follows:
> 
> I defined the class Cimage, instanced a Object of it and inserted it in
> a GTK::Hbox with pack_start(...). The result was the following Message
> at runtime:
> 
> Gtk-CRITICAL **: file gtkobject.c: line 939 (gtk_object_add_arg_type):
> assertion `arg_type > GTK_TYPE_NONE' failed.
> 
> GnomeUI-WARNING **: gnome_canvas_item_set(): could not find argument
> "image" in the `Gnome__CanvasImage' class ancestry
> 
> 
> /* CODE */
> 
> #include <gnome--/canvas.h>
> #include <gnome--/canvas-image.h>
> #include <gnome--/imlib.h>
> #include <string>
> class CImage: public Gnome::Canvas {
> public:
>   CImage(string filename);
>   ~CImage();
> protected:
> 
> private:
>   Gnome::CanvasImage *Image;
>   Gdk_Imlib::Image Img;
>   string FileName;
> };
> 
> CImage::CImage(string filename):Gnome::Canvas()//, Img(filename)
> {
>   FileName = filename;
>   Img.load(FileName);
>   Image = new Gnome::CanvasImage(*root(), 1.0, 5.0, Img);
> //  Image->set_anchor(GTK_ANCHOR_NW);
> //  Image->set_image(Img);
> }
> 
> CImage::~CImage()
> {
>   delete Image;
> }
> 
> 
-- 
Murray Cumming
murrayc usa net
www.murrayc.com