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<TITLE> [Gtk-sharp-list] Pixbuf.CopyArea -- Destination Pixbuf != Null
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<H1>[Gtk-sharp-list] Pixbuf.CopyArea -- Destination Pixbuf != Null</H1>
<B>Brad Taylor</B>
<A HREF="mailto:gtk-sharp-list%40lists.ximian.com?Subject=%5BGtk-sharp-list%5D%20Pixbuf.CopyArea%20--%20Destination%20Pixbuf%20%21%3D%20Null&In-Reply-To=42B06939.4070307%40utanet.at"
TITLE="[Gtk-sharp-list] Pixbuf.CopyArea -- Destination Pixbuf != Null">brad at getcoded.net
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<I>Wed Jun 15 14:40:11 EDT 2005</I>
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<PRE>Hi,
&gt;<i> maybe someone can give me a short hint. I am new to GTK programming and
</I>&gt;<i> currently I am playing around with the basic functions. in the
</I>&gt;<i> following example,
</I>&gt;<i> what do I have to assign to the pixbuf variable to avoid the
</I>&gt;<i> &quot;dest_pixbuf != NULL' failed&quot; error ?
</I>
[...]
&gt;<i> public PicChanger(string filename)
</I>&gt;<i> {
</I>&gt;<i> Console.WriteLine(filename);
</I>&gt;<i> Gdk.Pixbuf tempPixbuf = new Gdk.Pixbuf(filename);
</I>&gt;<i> tempPixbuf.CopyArea(100,100,50,50,pixbuf,0,0);
</I>
Like all C# classes, you need to intialize pixbuf before using it, i.e.:
pixbuf = new Gdk.Pixbuf (...);
Several argument lists are available for this constructor. You can find
them all at <A HREF="http://go-mono.org/docs/monodoc.ashx?link=T%3aGdk.Pixbuf%2f%">http://go-mono.org/docs/monodoc.ashx?link=T%3aGdk.Pixbuf%2f%</A>
2a.
&gt;<i> }
</I>
--
Brad Taylor
Genome Software LLC
<A HREF="http://www.getcoded.net">http://www.getcoded.net</A>
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