Drawing tilted text with DrawThemeTextEx()

Hello, again I have a problem:
I like to draw tilted text with the DrawThemeTextEx() API.
But I have the problem, that because of the clipping a 90 degree tilted text (against the clock) is not be drawn, since it is outside the drawing area.
Is there something I can do?

EDIT:
I found out, that I can use the flag DT_NOCLIP for DrawThemeText() to avoid the clipping. - This flag also works for DrawThemeTextEx(), but only if the flag DTT_COMPOSITED is not used!
Is there a way to switch off the clipping without losing the antialiased way of drawing text via DTT_COMPOSITED?