function_IsThemeActive: Boolean; // Returns True if the user uses XP style const
themelib = 'uxtheme.dll'; type
TIsThemeActive = function
: BOOL; stdcall
; var
IsThemeActive: TIsThemeActive; huxtheme: HINST; begin
Result := False; // Check if XP or later Version if
(Win32Platform = VER_PLATFORM_WIN32_NT) and
(((Win32MajorVersion = 5) and
(Win32MinorVersion >= 1)) or
(Win32MajorVersion > 5)) then
begin
huxtheme := LoadLibrary(themelib); if
huxtheme <> 0 then
begin
try
IsThemeActive := GetProcAddress(huxtheme, 'IsThemeActive'); Result := IsThemeActive; finally
if
huxtheme > 0 then
FreeLibrary(huxtheme); end
; end
; end
; end
; // Example Call: procedure
TForm1.Button1Click(Sender: TObject); begin
if
_IsThemeActive then
ShowMessage('Windows Themes are active.'); end
;