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xscc

Problem whit PixelSearch and Array

2 posts in this topic

Hello, I have a problem with this code:

#include <WindowsConstants.au3>
#include <StaticConstants.au3>
$coord = PixelSearch( 0, 0, 20, 300, 0xFF0000)
While 1
If Not @error Then
    MsgBox(0, "X and Y are:", $coord[0] & "," & $coord[1])
Else
    MsgBox (0, "Error", "errore")
EndIf
WEnd

When I execute this code the console display:

C:\Users\user\Desktop\autoit\Pixelsearch.au3 (6) : ==> Subscript used with non-Array variable.:
MsgBox(0, "X and Y are:", $coord[0] & "," & $coord[1])
MsgBox(0, "X and Y are:", $coord^ ERROR
>Exit code: 1    Time: 2.016

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xscc,

Put the $coord = PixelSearch( 0, 0, 20, 300, 0xFF0000) line inside the loop

At the moment you are only testing the error from PixelSearch on the first pass - after that you are testing the error from MsgBox, which is usually 0, while $coord is probably not an array as the PixelSearch failed. :P

#include <WindowsConstants.au3>
#include <StaticConstants.au3>

While 1
    $coord = PixelSearch(0, 0, 20, 300, 0xFF0000)
    If Not @error Then
        MsgBox(0, "X and Y are:", $coord[0] & "," & $coord[1])
    Else
        MsgBox(0, "Error", "errore")
    EndIf
WEnd

Now you will get successive error MsgBoxes until the pixel appears in the area. :x

M23


Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______My UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

 

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