Hi Mathieu, I agree with you that the ROOT GUI has now reached an impressive level of functionality, but HELAS, there is no documentation. I hope that we will be able to document it in the near future. Most people starting with the Root GUI have used the Guitest example. This shows the use of the basic widgets only. Recently, Bertrand Bellenot has developed a very nice and still simple application that is a good illustration of what one can do with the Root GUI. I have put a copy of his program at ftp://root.cern.ch/root/RootShower.tar.gz So far, it includes two Makefiles (Linux and Windows). To install it, eg, make -f Makefile.linux to run the program invoke RootShower and use the various HELP buttons to see the different possibilities. This example includes the functionality you want to see in your program. If people have comments about this nice demo, you can address them to rootdev@root.cern.ch and also to Bertrand.Bellenot@alcan.com Rene Brun On Wed, 19 Jun 2002, Mathieu Gisselbrecht wrote: > Hi, > > I'm using ROOT for about 2 years in order to develop multi-coincidence > experiments based on Synhrotron Radiation in molecular physics. A part > of the work is to write a User-Friendly-Interface (which is by essence > almost impossible....). So, I used a lot the GUI demo and the root talk > to get answer to my questions... I really thanks everyone for the > impressive work done !!! > > However for about 1 month, I can't find a way to get access to mouse > events in a TCanvas embedded in a TGTransientFrame, the so-called > TRootEmbeddedCanvas. My aim is to give the (x,y) value of the mouse in > an histogram (for instance to know the intensity and the position of a > peak just by moving the mouse). With CINT, it is super easy: > just create a TCanvas, and validate in the "Options" menu the "Event > Status" > ---------> How can I mange the same thing with an embedded canvas ? > > By the way, each time I'm going into more sophisticated concept: > - default parameters for drawing objects (e.g. histogram, text....) > - events control (keyboard, mouse) > I get stuck in the nowhere land : it looks like there are so many > functions to call, and without a complete set of examples, it's not so > easy... Is the latest User Guide deals with those things ? I only have > the v0.7.2. which is a good start but not enough to understand the > complexity of ROOT. > > Thanks in advance, > > Best regard, > > M. Gisselbrecht >
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