How to draw bitmaps?

[Reed Lawson <reedlawson yahoo com>]

Hi. I am new to GTK and I am trying to use 
gdk_draw_bitmap(). My bike_bits is a bit map
in XBM format. I have my configure event 
set up like this:
--------------------------8<---------------------------
static GdkBitmap *bitmap = NULL;

static gboolean
configure_event( GtkWidget *widget, GdkEventConfigure
*event )
{
  if (bitmap)
    g_object_unref (bitmap);

  bitmap = gdk_bitmap_create_from_data
(widget->window,
                                        bike_bits,
                            widget->allocation.width,
                           
widget->allocation.height);  
  printf("configure_event %x\n", (unsigned
int)bitmap);
  return TRUE;
}
--------------------------8<---------------------------

That seems to work fine. But I get an error in my
expose event when I try to run gdk_draw_bitmap()

--------------------------8<---------------------------
static gboolean
expose_event(GtkWidget *widget, GdkEventExpose *event)
{
  
  gdk_draw_bitmap(widget->window,
                  widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
                  bitmap,
                  event->area.x, event->area.y,
                  event->area.x, event->area.y,
                  event->area.width,
                  event->area.height);
  printf("expose_event\n");
  return FALSE;
}
--------------------------8<---------------------------

I get this:
--------------------------8<---------------------------
configure_event 808b250
The program 'lcdd' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadMatch (invalid parameter
attributes)'.
  (Details: serial 251 error_code 8 request_code 62
minor_code 0)
--------------------------8<---------------------------

Is this the proper GC to call gdk_draw_bitmap() with?
Can anyone see anything obviously wrong here?
Where is the docs on what these error codes mean?

Thanks,  


=====
Reed Lawson