RE: root GUI

Hi Roman,

> I try to add/delete/modify windows dynamically,
> e.g. when run starts,stop.

This should work, as long as you do it right, for example, You should use this method to close a Window: mainwin->CloseWindow()

> - is there somewhere example of gui with
> similar functionality ?

Depends which functionality... You can take a look at examples in $ROOTSYS/tutorials/gui/*.C and at $ROOTSYS/test/guitest

> - is there other documentation apart from
> ftp://root.cern.ch/root/doc/25WritingGUI.pdf ?
No, this is the only available documentation for the time being...

> - how can I debug errors a la bad windows ?
You can use gdb, and for the meaning of e.g. "XREQ: 40", you can take a look there:
http://www.rahul.net/kenton/xproto/xrequests.html XREQ:40 = TranslateCoords
Meaning you (the application) try to translate coordinates of a Window which is not valid anymore...

If you still have problems, you can send your code (or the relevant part)
and we'll take a look...

Cheers, Bertrand.

-----Original Message-----
From: owner-roottalk_at_root.cern.ch [mailto:owner-roottalk_at_root.cern.ch] On Behalf Of Roman Lietava
Sent: Monday, April 12, 2010 07:37
To: Rene Brun
Cc: roottalk
Subject: [ROOT] root GUI

I am trying to use to write standalone code with root GUI classes (TGxxxx).

I try to add/delete/modify windows dynamically, e.g. when run starts,stop.

It sometimes works, but quite often it crashes, see output pasted after email.

My questions are following:

• is there somewhere example of gui with similar functionality ?
• is there other documentation apart from ftp://root.cern.ch/root/doc/25WritingGUI.pdf ?
• how can I debug errors a la bad windows ?

Thanks,
Roman.

""
Starting DisplaySCAL for run: 113081
fInputs=0x9e99ca8
Cleanup ok
fComp added
Warning in <TCanvas::ResizePad>: fRootEmbeddedCanvas19_canvas width changed from 0 to 10

Warning in <TCanvas::ResizePad>: fRootEmbeddedCanvas19_canvas height changed from 0 to 10

Inputs added
run 113081 adding cluster 0
Error in <RootX11ErrorHandler>: BadWindow (invalid Window parameter) (XID:
10486057, XREQ: 40)
"" Received on Mon Apr 12 2010 - 08:48:46 CEST