I want to create graph to gif files. But when I run my program, it print out this error messagem. Cannot create gif file in batch mode. I don't understand what is the reason for this error. ---<My code>--- #include "TCanvas.h" void write_fields(Fields *current, int iteration) { char gif[256]; TCanvas *c1 = new TCanvas("c1", "2D FDTD", 800, 600); current->Hz.Draw(); c1->Modified(); c1->Update(); sprintf(gif, "pict_%.3d.gif", iteration); c1->SaveAs(gif); } -- Sincerely, Ki-young
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