Motif application

Luca Sfarzo (l.sfarzo@agora.smt.it.cern.ch)
Thu, 17 Jul 1997 14:34:17 +0200


Hello,

I'm trying to realize a stand-alone application using Root and Motif,
I have some questions:

1) Can you let me see a simple example on how to open the TMotifBrowser
in a stand-alone application?

2) How to manage the TMotifApplication?, is it the corresponding class
of TApllication under a Motif enviroment?

3) Where I can learn something about the Seek_t objects?

4) Last (but not least!): I'm learning how to write an app. to browse in
a Root file (a simple stand-alone text browser) but I'm having some
troubles with the cd() method to change a directory in a file.
I've got a file (test_subdir.root) convertd via h2root.
The file is divided in various sub-directory two main directory and so
on...) and I have not been able to set a subdir like the current dir to
read the histos it contains in order to display it; the following code
seems not to work well:
1.{
2.gROOT->Reset();
3. TFile f("("~/root/histos/test_subdir.root");
4. f.cd("/BARREL/ADC/PHI1_4_A");
5. f.ls();
6. TIter next(f.GetListOfKeys());

and so on..
The output of f.ls() is:

TFile** /users/sfarzo/root/histos/test_subdir.root
TFile* /users/sfarzo/root/histos/test_subdir.root
TDirectory* BARREL BARREL
TDirectory* ADC ADC
KEY: TDirectory PHI1_4_A;1 PHI1_4_A
KEY: TDirectory PHI1_4_B;1 PHI1_4_B
KEY: TDirectory ADC;1 ADC
KEY: TDirectory TDC;1 TDC
TDirectory* BARREL BARREL
TDirectory* ADC ADC
TDirectory* PHI1_4_A PHI1_4_A
KEY: TH1F h1001;1 PHI 1 PL 1 A
KEY: TH1F h1002;1 PHI 1 PL 2 A
.............................................
KEY: TH1F h1020;1 PHI 4 PL 5 A
KEY: TDirectory PHI1_4_A;1 PHI1_4_A
KEY: TDirectory PHI1_4_B;1 PHI1_4_B
KEY: TDirectory ADC;1 ADC
KEY: TDirectory TDC;1 TDC
KEY: TDirectory BARREL;1 BARREL
KEY: TDirectory ENDCAP;1 ENDCAP
but when i iterate in the list I discover that the only two objects in
it are TDirectory BARREL and TDirectory ENDCAP.
So, how can I set like the current TDirectory i.e. PHI1_4_A to read the
histos in it?

Many thanks, Luca Sfarzo