Clipboard

[J. Landman Gay]

-= JB =- wrote:

> How do you set the clipboard to empty. 

You did it fine. "set the clipboardData to empty".

> Don't ask why because
> I really have no reason except I am curious if it can be done.

Ours is not to question why. :)

> If
> I use the script below it will empty the clipboard from viewable
> contents but it will not set the clipboard to empty.  So when I
> use the clipboard function it will not return empty even though
> I can't see anything after putting nothing on the clipboard.
> 
>   set the clipboardData to ""
>   put the clipboard into clipInfo
>   ask "Clipboard" with clipInfo

They're different things (and they work differently than in HC.) The 
"clipboardData" is the actual contents. You can set or get it. It's 
actually an array, and you can request a specific type of data from the 
array. If you don't specify a type, the default is text (there are 
exceptions.) This is pretty much the equivalent of HyperCard's "the 
clipboard", except HC only worked with text exclusively.

The other function, the clipboard, is SuperCard's terminology. It gives 
you the type of data in the clipboard. The clipboard can be "text" or 
"image" or "controls" or other types.

You can use "the clipboard" to find out what type of content is in it, 
and then get "the clipboardData" to actually grab the contents. For 
example, after you copy an image from somewhere:

the clipboard --> "image"
the clipboardData["image"] --> binary stuff

If there is only one type of content, you don't need the array notation; 
whatever is in there will be accessed (that's the exception to the text 
default I mentioned.) But sometimes the clipboard has several types of 
data in it at the same time (like, text and HTML) and then you can use 
the array notation to extract only the type you want.

When you set the clipboardData to empty, the contents are empty but it 
still has a type. The clipboard is "text" when I try that; apparently 
Rev thinks empty is a text type.

-- 
Jacqueline Landman Gay         |     jacque at hyperactivesw.com
HyperActive Software           |     http://www.hyperactivesw.com