Newbie needs help understanding error/warning message related to pixel search.

[yeto]

Global $searchforspecficpixel

$searchforspecficpixel = PixelSearch (300, 500, 400, 600, 0xf0f4f9)
If Not @error Then
    MouseClick ($MOUSE_CLICK_LEFT )
    EndIf

Could someone please help me understand why I am getting the following error/warning message related to pixel search?

Thank you in advance for any help,

yeto

[Jos]

You are simply missing an include file which defines these standard variables. Have a closer look at the Helpfile example for MouseClick().  

Jos

[yeto]

36 minutes ago, Jos said:

You are simply missing an include file which defines these standard variables. Have a closer look at the Helpfile example for MouseClick().  

Jos

Thank you. Thank you. That worked.

I also studied this thread https://www.autoitscript.com/forum/topic/130468-constants-helper/ 

I pressed F5 after writing the code but it didn't tell me to add that "include file". What did I do wrong?

Again, thank you,
yeto