WPF RichTextBox: How to change selected text font?

Question

how can I change the font for a currently selected text area inside a WPF RichTextBox?

Answer 1

To get the current selection use:

Dim rng As TextRange = New TextRange(YourRtfBox.Selection.Start, YourRtfBox.Selection.End)

And then set the fontstyle:

rng.ApplyPropertyValue(Inline.FontSizeProperty, YourFontSizeValue) rng.ApplyPropertyValue(Inline.FontFamilyProperty, YourFontFamilyValue)