Zooming - jacobslusser/ScintillaNET GitHub Wiki
Scintilla can increase or decrease the size of the displayed text by a "zoom factor":
scintilla.ZoomIn(); // Increase
scintilla.ZoomOut(); // Decrease
scintilla.Zoom = 15; // "I like big 'text' and I cannot lie..."
NOTE: The default key bindings set CTRL+NUMPLUS
and CTRL+NUMMINUS
to zoom in and zoom out, respectively.