Mask

Richmond Mathewson geradamas at yahoo.com
Thu Feb 5 12:50:33 CST 2009


Thank you v. much for your help, Melitón Cardona Torres and J. Landman Gay;

I realised about 2 seconds after I had sent off that message that I had
a silly "the" in there.

But, as usual, I ran up against another something:

 put charToNum(char 10 of the mask of img"GOTTIT") into fld "fNEW"

returns nothing - presumably because img "GOTTIT" doesn't have a mask.

A few years back I made some non-rectangular stacks using a background 
image and a mask of the same size; however, as far as I remember both of 
them were JPEG images (the mask being a 2-bit jpeg) - now that doesn't 
seem to be what I imagined as MASK when referring to GIF images.

I would like to import a snapshot of something that lies on a layer over
a white background, and then having set the snapshot's white portions
to TRANSPARENT [and, I have got that far !], export the resultant image
as either a GIF or PNG, retaining the transparency: that is where I am
falling on my nose.

sincerely, Richmond Mathewson.


____________________________________________________________

A Thorn in the flesh is better than a failed Systems Development Life Cycle.
____________________________________________________________


      



More information about the use-livecode mailing list