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Another dialog question #206761 24/11/08 11:57 PM
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RusselB Offline OP
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If I have an icon item in a dialog, it looks something like
Code:
  icon Canada.ico, 0 
or
Code:
  icon 21, 535 60 64 64,  RusselB.jpg, 0, noborder 


Occasionally, especially while getting others to test the script, I will forget to include the picture files, which causes mIRC to generate an error, as the file is missing.

I was wondering if there was a way of doing something like
Code:
 if $exists(Canada.ico) {
 icon Canada.ico, 0
}


NOTE: I have tried this in the dialog, and it is not liked.

I realize that I could make multiple dialog layouts depending on if the picture exists or not, but if there's an alternative I haven't thought of, I'd appreciate hearing what it is.

Re: Another dialog question [Re: RusselB] #206762 25/11/08 12:20 AM
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Pivo Offline
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You could try using error handling to check, if the error occurs (or simply check for the files before you open the dialog), and if so, you could try to use /bwrite to create a small sample-image instead of the real one...
But thats just an idea, I don't have time to play with /bwrite and create pics now (and I'm too tired anyway) ...
I only know that this concept may fail at jpeg files due to their size, but as I said - that's all just guessed :P

Edit:
If /bwrite doesn't work for you, you could also use Picture Windows... that should do the job.
But is it worth the trouble? ...

good night...

Re: Another dialog question [Re: RusselB] #206765 25/11/08 01:11 AM
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Horstl Offline
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Try:

icon $iif($isfile(<myicon>),<myicon>,$mircexe)

...making the default icon a stand-in

Re: Another dialog question [Re: RusselB] #206766 25/11/08 01:33 AM
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Wims Offline
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I would use something like this :
Code:
alias tryit {
  if (!$exists($1-)) .timertry -m 0 20 if ($dialog(try)) $({,0) did -h try 1 $(|) .timertry off $(},0) 
  return $iif(!$v1,$1-,$mircexe)
}
dialog try {
  title try
  size -1 -1 300 300
  option dbu
  icon 1, 10 10 10 10, $tryit(path/file.ext)
}
If the file does not exists, just use the first mirc icon file, and hide the icon as fast as possible (i use -m 0 20, because it's fine, but you can change these value)


Looking for a good help channel about mIRC? Check #mircscripting @ irc.swiftirc.net
Re: Another dialog question [Re: RusselB] #206769 25/11/08 03:25 AM
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genius_at_work Offline
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Why not use a default icon (possibly hidden) in your dialog declaration, and then change it in your onDIALOG init event? (It may not be possible to change the titlebar icon after loading.)

See the following command in the help file:

/did -g name id [n] filename


-genius_at_work

Re: Another dialog question [Re: Horstl] #206770 25/11/08 03:29 AM
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RusselB Offline OP
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Your suggestion gives me an error of "Invalid table in icon"

Re: Another dialog question [Re: Wims] #206771 25/11/08 03:36 AM
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RusselB Offline OP
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Your suggestion works great for any icon item, whether in the titlebar or not.

Thanks

Re: Another dialog question [Re: RusselB] #206780 25/11/08 10:34 AM
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Horstl Offline
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I just wanted to put the general idea in the shortest format.
Of course you get that error for dialog item definitions using $iif, due to the "," char in $iif statements, and a custom identifier bypasses this issue (Wims exteded it with the "...and hide it via timer" idea) smile

Re: Another dialog question [Re: RusselB] #206782 25/11/08 01:34 PM
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DJ_Sol Offline
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I dunno, make a start menu event that checks for the image files. If the image isn't there remove the line from the file. If you reference the id in code later you can double check the file then before executing.

Re: Another dialog question [Re: DJ_Sol] #206823 26/11/08 03:42 AM
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DJ_Sol Offline
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hmm, I was barely awake, maybe I didn't make sense.

What I am saying is to actually remove a line from the file. The line in the dialog { event that sets the icon.

In a start event, check for the needed image, or your image folder whatever ... If it doesn't exist /write -c the line that set's the icon.

Yeah this is pretty drastic. Doesn;t offer the user the chance of downloading the proper image folder/files.



Ok .... here's another idea. Make a custom identifier for the image.


icon 21, 535 60 64 64, $image , 0, noborder


alias image {

if (image not found) { return mirc or windows .ico path (known good .ico path) }
else { return your image path }
}

Re: Another dialog question [Re: DJ_Sol] #206825 26/11/08 04:14 AM
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RusselB Offline OP
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RusselB refers DJ_Sol to Wims post in this same topic laugh

Re: Another dialog question [Re: RusselB] #206828 26/11/08 05:01 AM
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DJ_Sol Offline
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Oh did he suggest to delete the line as well? I don't really pay too much attention.

Re: Another dialog question [Re: DJ_Sol] #206830 26/11/08 05:16 AM
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RusselB Offline OP
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Not the delete line, but the alias.. which is what I'm using as it guarantees some kind of icon, even if the picture I actually wanted is missing.

Re: Another dialog question [Re: RusselB] #206838 26/11/08 12:47 PM
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DJ_Sol Offline
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If you choose no icon I believe it uses mirc's default icon anyways, doesn't it?