One thing that you can do is the following:
Create a Frame - without a caption, and no border. Size the frame to be just slightly smaller then your button.
Create a Label the exact size of the frame, and place the label in the frame. Set all the label properties for your desired effect.
Position the frame so that it is centered on the button. Be sure to Bring the Frame to Font, so that it is on top of the button.
Then add following label event handler
Sub Label_Click
btnCommand_Click
End Sub
Good Luck
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As a circle of light increases so does the circumference of darkness around it. - Albert Einstein