Hi David, yes this is what is supposed to happen. The string "gSystem->ProcessEvents()" is passed to CINT and when not trailed by a semicolon CINT prints the return value of the method executed. So just add the ;. Just like on the command line. Cheers, Fons. David Faden wrote: > > Hi, > > The following code prints out an unwanted stream of "(unsigned char)0" > to the console: > > { > char *input; > > TTimer *timer = new TTimer("gSystem->ProcessEvents()", 250, kFALSE); > do { > timer->TurnOn(); > timer->Reset(); > input = Getline("Type <return> to exit: "); > timer->TurnOff(); > } while (!input); > > } > > With the addition of a semicolon to the end of the command string > passed to the TTimer constructor, the code works as expected (waiting > silently for input): > > { > char *input; > > TTimer *timer = new TTimer("gSystem->ProcessEvents();", 250, kFALSE); > // ^ > do { > timer->TurnOn(); > timer->Reset(); > input = Getline("Type <return> to exit: "); > timer->TurnOff(); > } while (!input); > > } > > Why? Is this what's supposed to happen? > > I've been running this code under ROOT 3.01/02 14 May 2001 on Red Hat > Linux 6.1 on an i386. > Thank you. > > David -- Org: CERN, European Laboratory for Particle Physics. Mail: 1211 Geneve 23, Switzerland E-Mail: Fons.Rademakers@cern.ch Phone: +41 22 7679248 WWW: http://root.cern.ch/~rdm/ Fax: +41 22 7677910
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