Help looping PixelSearch

[moorsey]

Hi all,

Have looked around and tried a few different things from various suggestions, but can't get pixelsearch to loop until it finds a colour.

The script either stalls completely, or just continues running the script. At the moment, it just continues with the below:

Local $pixel
Do
$pixel = PixelSearch(46, 427, 71, 451, 0xFFFF00)
_FileWriteLog($LogFile, "Checking pixels") ; Write to the logfile passing the filehandle returned by FileOpen.
Sleep(500)
Until Not @error
_FileWriteLog($LogFile, "Toolbar found, continuing") ; Write to the logfile passing the filehandle returned by FileOpen.

Have also tried using "Until $pixel[0] > 0".

I have used the following code to check that the PixelSearch does actually work:

Local $pixel
Sleep(5000)
$pixel = PixelSearch(46, 427, 71, 451, 0xFFFF00)
MsgBox(0, "", $pixel[0] & $pixel[1])

Which it does.

Any tips appreciated!

[BrewManNH]

The only time @error will be set is if sleep returns an error, not your pixelsearch. When you check @error you have to do it right after the function you want to check, you're checking it 2 functions later, so it's never going to exit until you run out of HD space and the script crashes. Sleep doesn't set @error so it's not working the way you want. Put the PixelSearch at the bottom of your loop, or do it another way.

[RobGuy]

It could be helpful to do it other ways but if you really want to finish up a loop and respond to the occasion of @error someplace in the middle you can do something like this:

#include <Constants.au3>
Opt('MustDeclareVars', 1)
Local $error, $sOut='',$p=Run( _
    'CMD /c Dir C:\&&Dir "%WINDIR%"&&Dir /s "%USERPROFILE%\My Documents"' _
    , @SystemDir, @SW_HIDE, $STDERR_CHILD + $STDOUT_CHILD)
ConsoleWrite('Running')
While Not $error
    $sOut &= StdoutRead($p)
    $error = @error
    Sleep(500)
    ConsoleWrite('.')
WEnd
ConsoleWrite($sOut)