PyHTHEME = OpenThemeData(hwnd, pszClassList
Open the theme data for the specified HWND and
semi-colon separated list of class names.
OpenThemeData() will try each class name, one at
a time, and use the first matching theme info
found. If a match is found, a theme handle
to the data is returned. If no match is found,
a "NULL" handle is returned.
When the window is destroyed or a WM_THEMECHANGED
msg is received, _winxptheme::CloseThemeData should be
called to close the theme handle.
Parametershwnd : int
Window handle of the control/window to be themedpszClassList : string
Class name (or list of names) to match to theme data
section. if the list contains more than one name,
the names are tested one at a time for a match.
If a match is found, OpenThemeData() returns a
theme handle associated with the matching class.
This param is a list (instead of just a single
class name) to provide the class an opportunity
to get the "best" match between the class and
the current theme. For example, a button might
pass L"OkButton, Button" if its ID=ID_OK. If
the current theme has an entry for OkButton,
that will be used. Otherwise, we fall back on
the normal Button entry.