[AccessD] A2003: Formatting a text Box

Hello all
I want the text in a text box to be blue or red depending on conditions

Can it be done in the control source of the Control?
I know it can be done via Conditional Formatting or in code
Just wanna know if it can be done in the control source

EG (pseudo code)

=IIf([SomeValue]=-1,Format([SomeControl].ForeColor,"vbred","vbblue"))

Many thanks

Darren