IFL as a GUI bitmap

Is it possible to use a IFL in a GUI bitmap. What I want to do is have a animation with transparency on a GUI as a texture.


---Example---

new GuiBitmapCtrl() {
canSaveDynamicFields = "0";
Profile = "GuiContentProfile";
HorizSizing = "relative";
VertSizing = "relative";
position = "0 0";
Extent = "500 500";
MinExtent = "8 8";
canSave = "1";
Visible = "1";
hovertime = "1000";


bitmap = "./project/walk.ifl";


useVariable = "0";
tile = "0";


If not, how would I do this???