SetColor, dun wanna it over my Image!!!

Well, my problem is:

if I load a TImage using LoadImage Function called myImage, it's ok :)
then in the main loop, if I do this:

SetColor( 200, 0, 0 ) 'or whatever between 0 and 255
DrawRect( 10, 10, 100, 100 )
DrawImage( myImage, 200, 10 )

so, myImage receives the SetColor too!!!
in this case, myImage receives a lot of red. and become much more red. myImage losts it's natural colors.

Can I prevent it???
I mean, do not "colorize" myImage???

thx :)