How to change the title font size of the graph

[Micro-heart]

The code I tried to use is gStyle->GetTitleFontSize()->SetTitleFontSize(0.6),but it didn’t work out.I just found the solution to histogram.Could you help me?Thanks a million.

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[Wile_E_Coyote]

Before drawing the graph, try: gStyle->SetTitleFontSize(0.6);

[Micro-heart]

Thank you for your reply!I tried. Only a similar text box around the title got bigger, but the font didn’t
!

[Wile_E_Coyote]

Try to add: gStyle->SetTitleFont(62, ""); // set the pad title font

[Micro-heart]

I’m sorry this doesn’t work.But it can be modified in the Graphical User Interface. I have to draw a lot of pictures, so I can’t do this every time.

Please accept my best thanks.

[couet]

Once you modified it using the GUI, save the pad as a .C file and you will see which commands are needed.