I have a picture control in a user defined object that will be set by a function call 

If I pass a disk file name, the function works. If I pass a built-in file name like the one that it displays correctly if unchanged ("Prior1!") like "CustomerBig!" then it displays nothing. I can't find any reference to the picturename not working if you pass a built-in definition. The ribbonbar that the icon picturename is taken from works fine with either disk file names or built-in names.

Is this only going to work for disk files?

type p_icon from picture within uuo_favbut2
event ue_lbuttondown pbm_lbuttondown
event ue_lbuttonup pbm_lbuttonup
integer x = 105
integer y = 32
integer width = 146
integer height = 128
string picturename = "Prior1!"
boolean border = true
end type

public subroutine of_showicon (string asfilename);
isIconImage = asfilename
p_icon.picturename = asfilename

ibShowIcon = true

p_icon.x = (this.width - 146 ) / 2

st_legend.textsize = iiIconTextSize
st_legend.x = 32
st_legend.y = 160
st_legend.width = this.width - 64
st_legend.height = this.height - 192
st_legend.textsize = iiTextSize

end subroutine