Problem with TGFileDialog

ROOT
1

I am developping a stand alone application using root. My application is based on a GUI built using a custom TGMainFrame.

I select and open the data file using TGFileDialog, and then I draw different histograms. Each time I open a new file, I close the previous one. Everything works fine and I can open two data files without any problems. When I try to open a third one, the dialog box freeze and the program do not answer to any action.

I enclose the code calling the TGFileDialog variable.

static const char *FileType[] = {"Data file", "*.geom", 0, 0 }; TGFileInfo *FileInfo = new TGFileInfo(); FileInfo -> fFileTypes = FileType; FileInfo -> fIniDir = StrDup("/benjamin/mre_data/"); new TGFileDialog(gClient -> GetRoot(), this, kFDOpen,FileInfo);

2

Hi,

Please try the following:

static const char *FileType[] = {"Data file", "*.geom", 0, 0 }; static TString dir("/benjamin/mre_data/"); TGFileInfo fi; fi.fFileTypes = FileType; fi.fIniDir = StrDup(dir); new TGFileDialog(gClient->GetRoot(), this, kFDOpen, &fi);

Cheers, Ilka

3

I used your code instead of mine. But it didn’t change anything.

4

Hi,

can you send an example that will help me to reproduce the problem (as small as possible running macro)?

Thank you, Ilka

5

I am really sorry. My problem was not linked to the use of the class TGFileDialog. It was linked to my memory management. I forgot to delete pointers which led me to this strange behavior.

Thanks for your help…

6

Hi,
You are welcome and please do not hesitate to share your problems (if any).
Cheers, Ilka