Dear root users, I want to use TROOT::ProcessLine() to execute multiple scripts with some conditions from a single top script. The user guide v3.05 simply mentions the name of this method and says it can be used for this purpose. It also mentions an example from $ROOTSYS/tutorials/cernstaff.C. I went through the cernstaff.C file, but it only demonstrates how to create and fill a tree, set branches,etc, including nothing on how to use TROOT::ProcessLine(). I seached in "root.cern.ch", finding only this: "ProcessLine(const char* line, Int_t* error = 0)" and "void ProcessLine(const char *line, Int_t *error) Process interpreter command via TApplication::ProcessLine(). On Win32 the line will be processed a-synchronously by sending it to the CINT interpreter thread. For explicit synchrounous processing use ProcessLineSync(). On non-Win32 platforms there is not difference between ProcessLine() and ProcessLineSync(). The possible error codes are defined by TInterpreter::EErrorCode. In particular, error will equal to TInterpreter::kProcessing until the CINT interpreted thread has finished executing the line." The second long explantion includes no examples on how to use ProcessLine(). Then I tried to do the following on the root prompt: root[] .L myfile.C root[] gROOT.ProcessLine("myfile.C") but root says "..Symbol myfile is not defined in current scope ...". So I have no idea on how to use it. Can anyone kindly help me? The version of ROOT I am using is 3.05/04. Thanks in advance! tcli
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