Export snapshot to an image?

[Keith Clarke]

Hi Graham,
You might want to try something along the lines of

import snapshot from rectangle 0,0,1024,768 of card "target"
set the name of the last image to "The image name I want"

...which worked for me - and I think it bypasses the clipboard.
Best,
Keith..

On 18 Apr 2011, at 14:46, Klaus on-rev wrote:

> Hi Graham,
> 
>> I've been extracting bits of images using 'export snapshot', and this goes fine if the export is to a file. However, I have now tried to do an export to an image and nothing seems to happen. The command has the form
>> 
>> export snapshot from rect a,b,c,d of img "LargeBitmap" of cd "BitMapStore" of stack "FullSizeBitMap" to img "TestImage" of cd 1 of stack "Test"
>> 
>> All the objects and quantities in this script fragment have been tested as being of correct value and existence, and indeed the same 'from' values can export a valid file.
>> 
>> The docs seem to say that what I'm trying to do is legit - what am I doing wrong?
> 
> this is what LiveCode does not like:
> ... from rect a,b,c,d...
> 
> Try this:
> ...
> put a & "," & b & "," & c & "," & d into tRect
> export snapshot from rect tRect of img "LargeBitmap" of cd "BitMapStore" of stack "FullSizeBitMap" to img "TestImage" of cd 1 of stack "Test"
> ...
> 
>> TIA
>> 
>> Graham
>> 
>> PS If anyone knows any other way of non-destructively copying a part of an image without munging the clipboard, I'd be more than happy to use it.
> 
> That's what I would like to know, too, as long as fiddling with "imagedata" is not involved ;-)
> 
> 
> Best
> 
> Klaus