Too much debugging output.

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(Issue imported from Trac - prlewis@letterboxes.org)

Hi, 

I'm running into a problem with the (wxwidgets based) wxt terminal in 
gnuplot. The terminal's working fine, except that it's chucking this out 
every time I type (re)plot: 
gnuplot> plot 'test'
gnuplot> QPixmap: It is not safe to use pixmaps outside the GUI thread
QPixmap: It is not safe to use pixmaps outside the GUI thread
QPixmap: It is not safe to use pixmaps outside the GUI thread
QPixmap: It is not safe to use pixmaps outside the GUI thread
QPainter::begin: Cannot paint on a null pixmap
QPainter::end: Painter not active, aborted

(<unknown>:15342): Gdk-CRITICAL **: gdk_pixmap_foreign_new_for_display: 
assertion `(anid != 0)' failed

(<unknown>:15342): Gdk-CRITICAL **: gdk_draw_drawable: assertion `src != 
NULL' failed

(<unknown>:15342): GLib-GObject-CRITICAL **: g_object_unref: assertion 
`G_IS_OBJECT (object)' failed
QPixmap: It is not safe to use pixmaps outside the GUI thread
QPixmap: It is not safe to use pixmaps outside the GUI thread
QPixmap: It is not safe to use pixmaps outside the GUI thread
QPixmap: It is not safe to use pixmaps outside the GUI thread
QPainter::begin: Cannot paint on a null pixmap
QPainter::end: Painter not active, aborted

(<unknown>:15342): Gdk-CRITICAL **: gdk_pixmap_foreign_new_for_display: 
assertion `(anid != 0)' failed

(<unknown>:15342): Gdk-CRITICAL **: gdk_draw_drawable: assertion `src != 
NULL' failed

(<unknown>:15342): GLib-GObject-CRITICAL **: g_object_unref: assertion 
`G_IS_OBJECT (object)' failed

gnuplot>



Needless to say that this tends to interrupt my work in gnuplot. 

Seems like some of these errors / warnings are from GTK and some from Qt. 
The window displays fine though. 

It would be nice if this could either be fixed or suppressed. Thanks!

Original issue reported on code.google.com by davidsansome on 1 Apr 2009 at 2:15