Variables referring into functions/subs

[sam]

Basically, the reason I want to pass a string into the function is that it 
allows me to clear any canvas I please at any time, simply by passing it's 
name into the function as a string.  I then want to use the contents of 
this string in place of a variable (in this case the canvas object) name.  
I do not know if this is even possible in e-basic.

Canvas creation/clearing is not the only way I could benefit from this.  I 
plan on using similar principles to draw images, load/play sounds, preload 
stimuli during wait times, and many other things.  I'm not using slides and 
so forth as I'm working on fMRI experiments where every ms is critical.  I 
only want to run what is necessary, and using one function to work on many 
processes will allow me to reduce the footprint of this program.  ...plus I 
just find this fun.  I'm prepared to fall back on a more basic method, but 
I would much prefer some clever coding.  :)

About the parentheses, I've not had any success in e-prime 2.0.10 using 
that syntax.  It seems to require me to use parentheses or I encounter a 
compiling error.

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