Detect color change for a specific color

[mclopes]

 

Looking in the forum I found this code:

HotKeySet("{esc}","quit")
$pix=PixelGetColor(1595,770)
$quit=False
Do

sleep(50)
$pix2=PixelGetColor(1595,770)
if $pix <> $pix2 then
    MsgBox(0,"", "That Pixel Has Changed",0)
    $pix=PixelGetColor(1595,770)
EndIf
until $quit=true

func quit()
    $quit=True
MsgBox(0,"","Bye",0)
EndFunc

It detects when a pixel has changed color

But I need to detect when a color changes from 008000 to FF0000, or the reverse, and when that happens, I need to perform an action, only once (only when the change happens)
I tried several examples, but I'm a beginner and I could not make the action happen once, can anyone help me?

 

Thanks

[careca]

It should be a simple case of: if 008000 true, then loop until false, and do the action right after the loop.

Start with one color, and make it work, then proceed to more complexity, 2 or more colors.

If you dont understand the code, it would be a great idea to start checking the help file for the functions and their usage etc.

[mclopes]

25 minutes ago, careca said:

It should be a simple case of: if 008000 true, then loop until false, and do the action right after the loop.

Start with one color, and make it work, then proceed to more complexity, 2 or more colors. 

If you dont understand the code, it would be a great idea to start checking the help file for the functions and their usage etc.

Hi Careca, you mean I should use PixelSearch, to return a true / false?

[Nine]

9 minutes ago, mclopes said:

I should use PixelSearch, to return a true / false?

PixelSearch does not return true or false.  Read help file carefully.  And it searches for one color (with variation) at a time.  You need to look for 2 very different colors.  So PixelGetColor is better fitted for you.  Change your code to look for either color, when it finds one, continue loop until it finds the other color.  A While True...Wend seems more appropriate for your need.  Put together a script that would attempt to do it, post your code here if you hit a wall...

[water]

If you can tell us what you try to achieve we can tell you if working with pixels is the best approach.
AutoIt offers a lot of very reliable functions which are most of the time better suited than Pixel* functions.

[Bert]

3 hours ago, water said:

If you can tell us what you try to achieve we can tell you if working with pixels is the best approach.
AutoIt offers a lot of very reliable functions which are most of the time better suited than Pixel* functions.

Agreed - pixel searching is the worst way to automate. WHat are you trying to automate?

[mclopes]

1 hour ago, Bert said:

Agreed - pixel searching is the worst way to automate. WHat are you trying to automate? 

Hello, thank you all, for the help, I intend to automate a stock trading system, when the bar indicator (yellow arrow) turn red will be triggered the sales order, when green will be triggered a purchase order. 

[Bert]

OK, Who made the app? I ask for I wonder if there are additional controls that may be controlled by command line or a macro. Also it may have an API we can hook into.