winforms - C# || How to call methodes of FontDialog without opening the dialog itself? -


i have these buttons on windows form:

enter image description here

i code each button functionality.(bold, italic, font style, font size).

but wondering if call methodes of fontdialog , put them in own buttons.

to more clear: when click bold button, dont want 

richtextbox.selectionfont = new font(richtextbox.font,fontstyle.bold);

instead call methods 

fontdialog fd = new fontdialog();  fd.somemethode....


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