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Clipboard data not returned in function

 
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godsstigma



Joined: 04 Nov 2008
Posts: 222
Location: Memphis, TN
PostPosted: Sat Mar 20, 2010 1:31 am    Post subject: Clipboard data not returned in function Reply with quote
Can anyone tell me why the clipboard data is not being returned and stored in this code?
Code:
^1::
   Clip_1 := Clip_Catch()
   Return

!1::
   Clip_Send(Clip_1)
   Return

Clip_Catch() {
   
   cliphold = %clipboardall%
   Clipboard =
   SendInput, ^c
   ClipWait, 10, 1
      if errorlevel
         {
            MsgBox clip error
         }
   MsgBox %clipboard%
   Temphold = %clipboardall%
   Clipboard = %Cliphold%
   cliphold =
   Return Temphold
}

Clip_Send(var) {

   if var
      {
         cliphold = %clipboardall%
         Clipboard = %var%
         ClipWait, 10, 1
            if errorlevel
               {
                  MsgBox clip error
               }
         SendInput, ^v
         sleep, 200
         Clipboard = %Cliphold%
         cliphold =
      }
   Else
      {
         MsgBox no value
      }
}


If i write this code outside of a function it works perfectly. Do i have a syntax error that i don't see?

Thanks so much for the help! Smile
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alhab
Guest
PostPosted: Sat Mar 20, 2010 6:23 am    Post subject: Re: Clipboard data not returned in function Reply with quote
Code:
^1::
        Clip_1 := Clip_Catch()
         tooltip, % "Clip1: " Strlen(Clip_1),50,50, 2
          Return
!1::
   Clip_Send(Clip_1)
   Return

Clip_Catch() {
   
   cliphold = %clipboardall%
   Clipboard =
   SendInput, ^c
   ClipWait, 10, 1
      if errorlevel
         {
            MsgBox clip error
         }
   MsgBox %clipboard%
/*  This is the line that is causing the failure
   Temphold = %clipboardall%
     you can use either
         Temphold = %clipboard%  ; <- this may alter the contents due to auto-trim
     or preferably
         Temphold := clipboard ; <- this avoids any auto-trim action
*/
         Temphold := clipboard ; <- tested and it works
         tooltip, % "Temphold: " Strlen(Temphold),20,20, 1
   Clipboard = %Cliphold%
   cliphold =
   Return Temphold
}

Clip_Send(var) {

   if var
      {
         cliphold = %clipboardall%
         Clipboard = %var%
         ClipWait, 10, 1
            if errorlevel
               {
                  MsgBox clip error
               }
         SendInput, ^v
         sleep, 200
         Clipboard = %Cliphold%
         cliphold =
      }
   Else
      {
         MsgBox no value
      }
}

The problem (as colored in the above code) is that when you assign clipboardall to a variable, it in essence becomes a "special" binary variable containing all the clipboard inforamtion (including markers for the type of data) which cannot be passed in the return statement.

Quote:
Variables to which ClipboardAll has been assigned are in binary format and thus will appear as gibberish when displayed with MsgBox or similar. Also, altering a binary-clipboard variable (by means such as StringReplace) will revert it to a normal variable, resulting in the loss of its clipboard data.
This is what is happening when you Return Temphold. If you really need true clipboardall contents (but I see no reason, as you are then using SendInput...), you could declare Temphold as global variable that you could then access outside the function.

I placed a couple of tooltips in the above to see the size of the vars.
Quote:
StringLen may be used to discover the total size of a variable to which ClipboardAll has been assigned.
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godsstigma



Joined: 04 Nov 2008
Posts: 222
Location: Memphis, TN
PostPosted: Sat Mar 20, 2010 9:53 am    Post subject: Reply with quote
Thank you so much alhab.

I knew I was missing some single line in the help file. Laughing

ps: I do need the full contents of the clipboard as i am just using the windows clipboard as a catalyst to get this data out of AHK by means of sending a paste.

Again, thank you so much.
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