Interactively set a font by displaying a dialog box.
H = UISETFONT(HIN, 'dialogTitle') displays a dialog box for the
user to fill in, and applies the selected font to the input
The parameters are optional and may be specified in any order.
If parameter HIN is used, it must specify a handle to a text or
axis graphics object. The font properties currently assigned to this
object are used to initialize the font dialog box.
If parameter 'dialogTitle' is used, it is a string containing the
title of the dialog box.
The output H is is a handle to a graphics object. If HIN is specified,
H is identical to HIN. If HIN is not specified, a new text object
is created with the selected font properties, and its handle is
If the user presses Cancel from the dialog box, or if any error
occurs, the output value is set to the input handle, if provided;
otherwise, it is set to 0.
uisetfont(hText, 'Update Font')