Caption position in a TSpeedButton

Question

I'm using C++Builder 11 Alexandria. Is there a way to position a SpeedButton caption always centered even if there is a glyph? Caption can be positioned at right, at left, at top or at bottom of the glyph, but I need to position it over the glyph. I use SpeedButton because using glyph I can distinguish pressed and unpressed state so I can't use, for example, a TImage and use it's OnClick event to simulate a button.

Also to write text in the SpeedButton would be a solution but the SpeedButton Canvas property is protected so I can't use DrawText and in the SpeedButton there is no OnDraw event.

Any suggestion is appreciated.