Sets the values of UseTheme and NoTheme. You will generally want
to use the function which accepts only one parameter.
The theme is only relevant if you are using the MSHTML engine
for IE9 or earlier. As such it is likely that this function will be
deprecated in future releases of ABCpdf.
The theme is the user interface design for text boxes, buttons,
combo boxes and other interactive features which may be found on
web pages. Different versions of Windows have different themes. If
you do not use the current theme (typically Windows XP/Aero Glass)
you will get the default Windows 95 appearances.
The fact that you can set two different values is a reflection
of the fact that these two inputs correspond to the Windows flags
DOCHOSTUIFLAG_THEME and DOCHOSTUIFLAG_NOTHEME respectively. While
there seems little point in setting both to the same boolean value,
the fact that Windows allow it is why it is reflected in this
function call. If UseTheme and NoTheme are the same no theme is