Font embedding usinf Embed Tag

[Embed(source=‘C:\WINDOWS\Fonts\FONT.ttf’, fontName=“Font”, mimeType=“application/x-font-truetype”)]

Can it be possible to pass source parameter as a external string.

i.e.
var fontType:String = C:\WINDOWS\Fonts\FONT.ttf;

[Embed(source=fontType, fontName=“Font”, mimeType=“application/x-font-truetype”)]

Any way to achieve this? Any help is appreciated.