to paint themed button I use this code:
var
h: HTHEME;
begin
if UseThemes then begin
SetWindowTheme(Handle, 'explorer', nil);
h := OpenThemeData(Handle, 'WINDOW');
if h <> 0 then
try
DrawThemeBackground(h, Canvas.Handle, WP_CLOSEBUTTON, GetAeroState, ClientRect, nil);
finally
CloseThemeData(h);
end;
end
else
DrawFrameControl(Canvas.Handle, ClientRect, DFC_CAPTION, DFCS_CAPTIONCLOSE or GetClassicState)
end;
This code works fine but painted button looks like from Windows 7 theme, even on Windows 8 or 10. This is possible to paint the Close button using Windows 10 or 8 theme?
Workable solution to get bitmaps from theme:
var
h: HTHEME;
Rect: TRect;
BufSize: Cardinal;
h := OpenThemeData(Handle, 'DWMWINDOW');
if h <> 0 then
try
GetThemeRect(h, WP_MINCAPTION, MNCS_ACTIVE, TMT_ATLASRECT, Rect);
...
GetThemeStream(...);
finally
CloseThemeData(h);
end;
And how to use GetThemeStream described here: GetThemeStream usage, many thanks to Andreas Verhoeven, author of the program Vista Style Builder