2008/2/28 Demetris Zavorotnichenko <[EMAIL PROTECTED]>:

>  I have done it like this:
> gtk_widget_shape_combine_mask(GTK_WIDGET(button->window),mask,0,0);
>
You are type-casting a GdkWindow to a GtkWidget, which you cannot do.
In this case its sufficient  if you do
gtk_widget_shape_combine_mask(GTK_WIDGET(button),mask, ...);
or
 gdk_window_shape_combine_mask (button->window, mask, ...);

>
>
>
>
> It compiles
>
> But when I run the application I get:
>
>
>
> gtk_widget_shape_combine_mask: assertion 'GTK_IS_WIDGET (widget)' failed
>
>
>
> What am I doing wrong?
>
>
>
> How should the function look like ?
>
>
>
>
>  ------------------------------
>
> *From:* Gautam Ravi [mailto:[EMAIL PROTECTED]
> *Sent:* Thursday, February 28, 2008 3:19 PM
> *To:* Demetris Zavorotnichenko
> *Cc:* gtk-list@gnome.org
> *Subject:* Re: Button from an image (round Button)
>
>
>
> Hi,
>
> GtkButton has its own GdkWindow. It can be accessed like GTK_WIDGET
> (button)->window.
>
> You can do the  "shape_combine_mask" for the GtkButton's window also. See
> that "shape_combine_mask" is done when it is realized.
>
> --
> Regards
> Gautam
>
>
>  2008/2/27 Demetris Zavorotnichenko <[EMAIL PROTECTED]>:
>
> Hi everyone.
>
>
>
> Forgive me if my question is going to sound silly. But I'm new to GTK so I
> have to ask.
>
>
>
> I want to create a button that would not be as a normal button, but with a
> shape I have from a PNG image(with transparency)
>
>
>
> I have tried to do "shape_combine_mask" , created the masks, but it seems
> this works only for windows.
>
>
>
> But I need a button with the shape from a PNG image and if I press it I
> would call a function so the button would have roll_over, or atleast
> "clicked" signals. Plus I want to make a bunch of them to create a keypad so
> I would have to move them and arrange them in a loop.
>
>
>
>
>
> How could I do this ?
>
>
>
> PLS help out.
>
>
>
> Yours truly, Demetris Z.
>
>
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>
>
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