Re: hello, Mr. Ronald Bultje

["guo li" <liguo503 hotmail com>]

Hi,everyone,
 do you have the scribble source codes in GTk tutorial?
I checked online but no source code available. :(
almost driven by the error, white window no image!

:(
guo


> From: Ronald Bultje <rbultje ronald bitfreak net>
> To: guo li <liguo503 hotmail com>
> CC: gtk-list gnome org
> Subject: Re: hello,  Mr. Ronald Bultje
> Date: 16 Mar 2002 08:57:35 +0100
>
> Hi,
>
> On Sat, 2002-03-16 at 04:53, guo li wrote:
> > Hi, Mr Ronald Bultje,
> >    I am now having  a headache with displaying a jpeg picture using GTK,
> > can you please send me the code you mentioned in the following:
> > your help will be greatly appreciated.
>
> Here's the code I use in gtk+-1.2:
>
> --code for gtk+-1.2 starts here--
> char *file = "/path/to/file.jpg";
> /* this can be any widget as long as it has its own
>  * GdkWindow for example, use a GtkDrawingArea or a
>  * GtkEventBox */
> GtkWidget *widget;
> GdkPixbuf *pixbuf;
>
> /* create the widget and the pixbuf */
> widget = gtk_event_box_new(); /* could be any widget */
> pixbuf = gdk_pixbuf_new_from_file(file);
>
> /* resize the widget so that the pixbuf fits */
> gtk_widget_set_usize(widget, gdk_pixbuf_get_width(pixbuf,
>   gdk_pixbuf_get_height(pixbuf));
>
> /* place the image in the widget */
> gdk_pixbuf_render_to_drawable (pixbuf, widget->window,
>   widget->style->white_gc, 0, 0, 0, 0,
>   gdk_pixbuf_get_width(pixbuf),
>   gdk_pixbuf_get_height(pixbuf),
>   GDK_RGB_DITHER_NORMAL, 0, 0);
>
> /* use general Gtk+-1.2 routines to add the widget to a
>  * window and show it */
> [..]
> gtk_widget_show(widget);
> --code ends here--
>
> And here's my way of doing it in gtk+-2.0:
>
> --code for gtk+-2.0 starts here--
> char *file = "/path/to/file.jpg";
> GtkWidget* image;
> GdkPixbuf *pixbuf;
>
> /* reate the image widget */
> pixbuf = gdk_pixbuf_new_from_file(file);
> image = gtk_image_new_from_pixbuf(pixbuf);
>
> /* attach gtkimage widget to a parent and show it */
> [..]
> gtk_widget_show(image);
> --code ends here--
>
> Goodluck,
>
> Ronald
>
> --
> -   .-.
> -   /V\    | Ronald Bultje <rbultje ronald bitfreak net>
> -  // \\   | Running: Linux 2.4.18-XFS and OpenBSD 3.0
> - /(   )\  | http://ronald.bitfreak.net/
> -  ^^-^^
>
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