[Error] Attempting to compare a number with a boolean

[BrastaSauce]

I get an error for attempting to compare a number with a boolean on line 4.

addEventHandler("onClientRender", root, 
   function() 
        local screenx, screeny, worldx, worldy, worldz = getCursorPosition() 
        if (screenx >= 924 and screenx <= 983) and (screeny <= 375 and screeny >=360) then 
            redMessage = dxDrawText("Message", 924, 375, 977, 390, tocolor(255, 0, 0, 255), 1.00, "default-bold", "left", "top", false, false, true, false, false) 
        else 
            dxDrawText("Message", 924, 375, 977, 390, tocolor(255, 255, 255, 255), 1.00, "default-bold", "left", "top", false, false, true, false, false) 
        end 
        addEventHandler("onClientGUIClick", redMessage, clickOnMessage) 
    end 
) 

Edited April 4, 2014 by Guest

[Controlled]

Use lua tags so it's easier for us to read.

What does debug output for the values of screenx and screeny?

[BrastaSauce]

Screenx gave me a boolean, while screeny gave me nil for some reason.

[Plean]

From wiki page: If the cursor isn't showing, returns false as the first value.

[Karuzo]

screenx and screeny returns a value between 0 and 1 so you can't compare it with 924 just let your cursors position output and then compare it.

[Mr_Moose]

Replace this:

if (screenx >= 924 and screenx <= 983) and (screeny <= 375 and screeny >=360) then 

With this:

if (screenx and screeny and screenx >= 924 and screenx <= 983) and (screeny <= 375 and screeny >=360) then 

And the if statement will verify that screenx and screeny has a value that isn't false (which will output the error you received). The root of this problem is as Plean said: "If the cursor isn't showing, returns false as the first value.", another option could be o check if the cursor is showing in this if statement as well.

[tosfera]

An easier way would to to just add a simple check to your script above the getCursorPosition() and let it quit the script whenever your cursor isn't showing;

if not ( isCursorShowing() ) then return; end