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GeoTrail

How can I retrieve the contents of the windows clipboard and put the content into a variable?

I want to use this in the EVLOOP part to check if the user copies a URL to the clipboard.

Also, not sure, but I guess I have to use the parse thing to check if the content of the clipboard is a valid URL.

Could anyone help me with this?
I'm making a simple download program, (My first in VDS) and want the download button only to be enabled when a valid URL is in the clipboard.

Mac · Posted: Wed Feb 19, 2003 1:36 pm Post subject:

Create a list and use LIST COPY, then retrieve it from the list. Wink

GeoTrail · Posted: Wed Feb 19, 2003 1:49 pm Post subject:

I tried this, but It don't seem to work Sad

Mac · Posted: Wed Feb 19, 2003 1:57 pm Post subject:

OOPS...

DUH - Should be LIST PASTE not LIST COPY... Laughing

Cheers, Mac Smile

GeoTrail · Posted: Wed Feb 19, 2003 2:02 pm Post subject:

Works great. Thanks Mac Worship

Skit3000 · Posted: Wed Feb 19, 2003 2:19 pm Post subject:

Maybe you should put it into a loop, to keep on checking untill there is something on the clipboard...

GeoTrail · Posted: Wed Feb 19, 2003 2:32 pm Post subject:

Yeah, I thought about that.
But wont that cause a recursion of the script?
With the unlimited loop I mean.

Mac · Posted: Wed Feb 19, 2003 2:37 pm Post subject:

Ya could use a TIMER event, OR add @event() to the
REPEAT/UNTIL loop exit criteria... Wink

GeoTrail · Posted: Wed Feb 19, 2003 2:47 pm Post subject:

Is it posible to cause a recursion to the script when using loops with VDS?

I would like to have a past button that is disabled if there is no valid URL to a downloadable file in the clipboard. And if there is a valid download URL the past button becomes enabled.

Is this possible?

Mac · Posted: Wed Feb 19, 2003 3:00 pm Post subject:

Yep - you can lock VDS up tighter than a drum if ya have any
kind of a loop with no way out of it.

But - as long as ya have a close button (and a CLOSE label),
and use @event() as one outlet for the loop, there shouldn't
be a problem.

A TIMER event would prolly work fine for what you're doin'
though. Wink

Cheers, Mac Smile

Mac · Posted: Wed Feb 19, 2003 3:03 pm Post subject:

One other note about loops - if you're gonna have one run
constantly, use some kind of WAIT in it. Otherwise CPU usage
goes to 100%.

Here's an example:

http://www.vdsworld.com/forum/viewtopic.php?t=458

Cheers, Mac Smile

GeoTrail · Posted: Wed Feb 19, 2003 3:09 pm Post subject:

That's a good idea.
When using your loop example with the wait command my CPU usage actually dropped a few precents Smile

FreezingFire · **Admin Team** Joined: 23 Jun 2002 Posts: 3508

Here's a question on why the loops cause 100% CPU usage: is it a bug in
the way VDS is programmed? Why does it not cause 100% CPU even
when you use WAIT "0.0000000000000000000001"? Perhaps it
should be a feature pre-built into VDS that it waits even less than a
nano-second (I'm not scientific here, just used as a figure of speech Wink

)
to avoid the 100% CPU load. Confused

Mac · Posted: Thu Feb 20, 2003 12:42 am Post subject:

I dunno - maybe loops are high priority? Although, if there was
a built in delay, @datetime() would be off more... Confused

Another note - about the fastest I've been able to get a
WAIT to do is aprox 1/100 of a second (".01") - anything
faster (".001", etc.) appears to wait about the same length
of time (used @datetime() to check this).

Wondering if this varies with CPU speed, or is there just a
point where VDS won't execute a WAIT any faster?

Cheers, Mac Smile

Skit3000 · Posted: Thu Feb 20, 2003 4:58 pm Post subject:

I think the wait command can't be faster the 1/100 of a second, because VDS is a interpretted language. Or it's because it uses the Windows API or something, which probably won't be much accurater then 1/100 of a sec...