[10382] in The GTK GIMP ToolKit mailing list archive
[gtk-list] Help: Registering C++ Callback
daemon@ATHENA.MIT.EDU (Jay J. Williams)
Tue Nov 24 11:16:05 1998
Date: Tue, 24 Nov 1998 10:14:18 -0600 (CST)
From: "Jay J. Williams" <jjw@ece.nwu.edu>
To: gtk-list@redhat.com
Resent-From: gtk-list@redhat.com
Reply-To: gtk-list@redhat.com
Hi,
I'm having some problems using gtk+1.0.5 with g++. I'm trying to register
C++ callback functions within my code. When I compile the program I get
the following warning for all the callbacks I register with
gtk_signal_connect:
warning: converting from `int (KevVideo::*)(_GtkWidget *,
_GdkEvent *,void *)' to `void(*)()'
All of the c++ callbacks have the following prototype,
gint KevVideo::CB_widgetName(GtkWidget *widget,GdkEvent *event,
gpointer data);
My program seems to run; the callbacks routines are called. However, the
callback functions produce incorrect results when they accessing the
class's data members:( Does this appear to be an error on my part or is
there something special I should be doing in order to use C++ callbacks
with gtk+?
Cheers,
Jay
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