[Closed] showHWTexture?

fn MatCreation = 
(
 mat = standardMaterial name:"show" shaderType:1;
 enableHardwareMaterial mat on;
 showHWTexture mat on;
 return mat;
)

meditMaterials[2] = MatCreation();

show Hardware Map in viewport button did not toggled on.
It works with Arch___Design_mi which describled in the maxscript help file.

Now I had a standardMaterial with bump_Map which I would like to toggle showing with a checkbuttion.

I got confused.