Screen Crosshairs

[WideBoyDixon]

I thought this might be useful for aligning controls etc. or checking alignment on, for example, a web page (or a document). Actually, I'm not sure how it might be used but I'll dump it here anyway

It uses rectangular regions to create a crosshair on the screen which follows the mouse. Fine tuning can be done with the arrow keys and pressing shift at the same time moves the crosshair in bigger increments. You can change $CROSSHAIR_SIZE and $BIG_MOVE to change the size of the "gap" in the crosshair (1 is the minimum) and also the size of the "jump" when shift is pressed down with the arrow keys. I ended up constantly updating the zoom window as otherwise it got corrupted when I tried to only update it when the mouse moved. If someone can find a better way or can find a use for this script then please amend away!

I guess you could also change the color of the crosshair by setting a different background colour.

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#include <Constants.au3>
#include <GUIConstants.au3>
#include <GUIConstantsEx.au3>
#include <Misc.au3>
#include <WinAPI.au3>
#include <WindowsConstants.au3>

Opt("MustDeclareVars", 1)

HotKeySet("{ESC}", "_ExitApplication")

Global $SIZEX = 256, $SIZEY = 256, $CROSSHAIR_SIZE = 1, $BIG_MOVE = 8
Global $GUIZoom = GUICreate("Zoom", $SIZEX, $SIZEY, 0, 0, BitOR($WS_SYSMENU, $WS_BORDER, $WS_CAPTION), $WS_EX_TOPMOST)
GUISetBkColor(0xEEEEEE)
GUISetState()
Global $Crosshair = GUICreate("", @DesktopWidth, @DesktopHeight, 0, 0, $WS_POPUP, $WS_EX_TOOLWINDOW + $WS_EX_TOPMOST)
GUISetBkColor(0x000000)
GUISetState()

Global $z1 = 4
Global $zoomX = Int($SIZEX / $z1), $zoomY = Int($SIZEY / $z1), $DeskDC = _WinAPI_GetDC(0), $MyDC = _WinAPI_GetDC($GUIZoom)
_WinAPI_SetBkMode($MyDC, 1)
Global $UserDLL = DllOpen("user32.dll")
Global $bLocked = False, $bContinue = True, $aPos, $aLast[2] = [-1, -1], $aMask, $aM_Mask, $nInc

_SetZoom()
While $bContinue
    If ($aLast[0] <> -1) Then
        $nInc = 1
        If _IsPressed("10", $UserDLL) Then $nInc = $BIG_MOVE
        If _IsPressed("25", $UserDLL) Then MouseMove($aLast[0] - $nInc, $aLast[1])
        If _IsPressed("27", $UserDLL) Then MouseMove($aLast[0] + $nInc, $aLast[1])
        If _IsPressed("26", $UserDLL) Then MouseMove($aLast[0], $aLast[1] - $nInc)
        If _IsPressed("28", $UserDLL) Then MouseMove($aLast[0], $aLast[1] + $nInc)
    EndIf
    $aPos = MouseGetPos()
    If _IsPressed("4C", $UserDLL) Then
        $bLocked = Not $bLocked
        Do
            Sleep(10)
        Until Not _IsPressed("4C", $UserDLL)
    EndIf
    If _IsPressed("21", $UserDLL) And $z1 < 32 Then
        $z1 *= 2
        _SetZoom()
        Do
            Sleep(10)
        Until Not _IsPressed("21", $UserDLL)
        $aLast[0] = -1
    EndIf
    If _IsPressed("22", $UserDLL) And $z1 > 1 Then
        $z1 /= 2
        _SetZoom()
        Do
            Sleep(10)
        Until Not _IsPressed("22", $UserDLL)
        $aLast[0] = -1
    EndIf
    If ($aPos[0] <> $aLast[0]) Or ($aPos[1] <> $aLast[1]) Then
        If (Not $bLocked) Then
            $aM_Mask = DllCall("gdi32.dll", "long", "CreateRectRgn", "long", 0, "long", 0, "long", 0, "long", 0)
            $aMask = DllCall("gdi32.dll", "long", "CreateRectRgn", "long", 0, "long", $aPos[1], "long", $aPos[0] + 1 - $CROSSHAIR_SIZE, "long", $aPos[1] + 1)
            DllCall("gdi32.dll", "long", "CombineRgn", "long", $aM_Mask[0], "long", $aMask[0], "long", $aM_Mask[0], "int", 2)
            $aMask = DllCall("gdi32.dll", "long", "CreateRectRgn", "long", $aPos[0], "long", 0, "long", $aPos[0] + 1, "long", $aPos[1] + 1 - $CROSSHAIR_SIZE)
            DllCall("gdi32.dll", "long", "CombineRgn", "long", $aM_Mask[0], "long", $aMask[0], "long", $aM_Mask[0], "int", 2)
            $aMask = DllCall("gdi32.dll", "long", "CreateRectRgn", "long", $aPos[0] + $CROSSHAIR_SIZE, "long", $aPos[1], "long", @DesktopWidth, "long", $aPos[1] + 1)
            DllCall("gdi32.dll", "long", "CombineRgn", "long", $aM_Mask[0], "long", $aMask[0], "long", $aM_Mask[0], "int", 2)
            $aMask = DllCall("gdi32.dll", "long", "CreateRectRgn", "long", $aPos[0], "long", $aPos[1] + $CROSSHAIR_SIZE, "long", $aPos[0] + 1, "long", @DesktopHeight)
            DllCall("gdi32.dll", "long", "CombineRgn", "long", $aM_Mask[0], "long", $aMask[0], "long", $aM_Mask[0], "int", 2)
            DllCall("user32.dll", "long", "SetWindowRgn", "hwnd", $Crosshair, "long", $aM_Mask[0], "int", 1)
            $aLast = $aPos
        EndIf
    EndIf
    _WinAPI_StretchBlt($MyDC, 0, 0, $SIZEX, $SIZEY, $DeskDC, $aPos[0] - ($zoomX / 2), $aPos[1] - ($zoomY / 2), $zoomX, $zoomY, $SRCCOPY)
    Sleep(50)
WEnd

GUISetState(@SW_HIDE, $Crosshair)
GUISetState(@SW_HIDE, $GUIZoom)
GUIDelete($Crosshair)
GUIDelete($GUIZoom)
DllClose($UserDLL)

Exit

Func OnAutoItExit()
    _WinAPI_ReleaseDC(0, $DeskDC)
    _WinAPI_ReleaseDC($GUIZoom, $MyDC)
EndFunc   ;==>OnAutoItExit

Func _SetZoom()
    _WinAPI_SetWindowText($GUIZoom, "Crosshair- x" & $z1)
    $zoomX = Int($SIZEX / $z1)
    $zoomY = Int($SIZEY / $z1)
EndFunc   ;==>_SetZoom

Func _WinAPI_StretchBlt($hDestDC, $iXDest, $iYDest, $iWidth, $iHeight, $hSrcDC, $iXSrc, $iYSrc, $iWidthSrc, $iHeightSrc, $iROP)
    Local $aResult = DllCall("GDI32.dll", "int", "StretchBlt", "hwnd", $hDestDC, "int", $iXDest, "int", $iYDest, "int", $iWidth, "int", $iHeight, _
            "hwnd", $hSrcDC, "int", $iXSrc, "int", $iYSrc, "int", $iWidthSrc, "int", $iHeightSrc, "int", $iROP)
    If @error Then Return SetError(@error, 0, False)
    Return $aResult[0] <> 0
EndFunc   ;==>_WinAPI_StretchBlt

Func _ExitApplication()
    $bContinue = False
EndFunc   ;==>_ExitApplication

Have fun.

WBD

Edited March 24, 2009 by WideBoyDixon

[billthecreator]

Thats pretty neat.

[AlmarM]

Very nice!

AlmarM

[WideBoyDixon]

Thanks for the comments. I just edited the first post with a new script which allows you to press "L" to lock the crosshair in place. Pressing "L" again unlocks it.

WBD

[Angoth]

Very cool. I made a slight modification to your script to suit my needs. I needed to map out screen coords X,Y for apps to click and check contents. I deleted the Zoom display on the GUI title bar and added a check, display and GUI title bar update for the mouse coords in the While...Wend.

It's still 99.99999999999999999% your code. Thanks. I needed that, badly.

expandcollapse popup

#include <Constants.au3>
#include <GUIConstants.au3>
#include <GUIConstantsEx.au3>
#include <Misc.au3>
#include <WinAPI.au3>
#include <WindowsConstants.au3>

Opt("MustDeclareVars", 1)

HotKeySet("{ESC}", "_ExitApplication")

Global $SIZEX = 256, $SIZEY = 256, $CROSSHAIR_SIZE = 1, $BIG_MOVE = 8
Global $GUIZoom = GUICreate("Zoom", $SIZEX, $SIZEY, 0, 0, BitOR($WS_SYSMENU, $WS_BORDER, $WS_CAPTION), $WS_EX_TOPMOST)
GUISetBkColor(0xEEEEEE)
GUISetState()
Global $Crosshair = GUICreate("", @DesktopWidth, @DesktopHeight, 0, 0, $WS_POPUP, $WS_EX_TOOLWINDOW + $WS_EX_TOPMOST)
GUISetBkColor(0x000000)
GUISetState()

Global $z1 = 4
Global $zoomX = Int($SIZEX / $z1), $zoomY = Int($SIZEY / $z1), $DeskDC = _WinAPI_GetDC(0), $MyDC = _WinAPI_GetDC($GUIZoom)
_WinAPI_SetBkMode($MyDC, 1)
Global $UserDLL = DllOpen("user32.dll")
Global $bLocked = False, $bContinue = True, $aPos, $aLast[2] = [-1, -1], $aMask, $aM_Mask, $nInc

_SetZoom()
While $bContinue
    If ($aLast[0] <> -1) Then
        $nInc = 1
        If _IsPressed("10", $UserDLL) Then $nInc = $BIG_MOVE
        If _IsPressed("25", $UserDLL) Then MouseMove($aLast[0] - $nInc, $aLast[1])
        If _IsPressed("27", $UserDLL) Then MouseMove($aLast[0] + $nInc, $aLast[1])
        If _IsPressed("26", $UserDLL) Then MouseMove($aLast[0], $aLast[1] - $nInc)
        If _IsPressed("28", $UserDLL) Then MouseMove($aLast[0], $aLast[1] + $nInc)
    EndIf
    $aPos = MouseGetPos()
    If _IsPressed("4C", $UserDLL) Then
        $bLocked = Not $bLocked
        Do
            Sleep(10)
        Until Not _IsPressed("4C", $UserDLL)
    EndIf
    If _IsPressed("21", $UserDLL) And $z1 < 32 Then
        $z1 *= 2
        _SetZoom()
        Do
            Sleep(10)
        Until Not _IsPressed("21", $UserDLL)
        $aLast[0] = -1
    EndIf
    If _IsPressed("22", $UserDLL) And $z1 > 1 Then
        $z1 /= 2
        _SetZoom()
        Do
            Sleep(10)
        Until Not _IsPressed("22", $UserDLL)
        $aLast[0] = -1
    EndIf
    If ($aPos[0] <> $aLast[0]) Or ($aPos[1] <> $aLast[1]) Then
        If (Not $bLocked) Then
            $aM_Mask = DllCall("gdi32.dll", "long", "CreateRectRgn", "long", 0, "long", 0, "long", 0, "long", 0)
            $aMask = DllCall("gdi32.dll", "long", "CreateRectRgn", "long", 0, "long", $aPos[1], "long", $aPos[0] + 1 - $CROSSHAIR_SIZE, "long", $aPos[1] + 1)
            DllCall("gdi32.dll", "long", "CombineRgn", "long", $aM_Mask[0], "long", $aMask[0], "long", $aM_Mask[0], "int", 2)
            $aMask = DllCall("gdi32.dll", "long", "CreateRectRgn", "long", $aPos[0], "long", 0, "long", $aPos[0] + 1, "long", $aPos[1] + 1 - $CROSSHAIR_SIZE)
            DllCall("gdi32.dll", "long", "CombineRgn", "long", $aM_Mask[0], "long", $aMask[0], "long", $aM_Mask[0], "int", 2)
            $aMask = DllCall("gdi32.dll", "long", "CreateRectRgn", "long", $aPos[0] + $CROSSHAIR_SIZE, "long", $aPos[1], "long", @DesktopWidth, "long", $aPos[1] + 1)
            DllCall("gdi32.dll", "long", "CombineRgn", "long", $aM_Mask[0], "long", $aMask[0], "long", $aM_Mask[0], "int", 2)
            $aMask = DllCall("gdi32.dll", "long", "CreateRectRgn", "long", $aPos[0], "long", $aPos[1] + $CROSSHAIR_SIZE, "long", $aPos[0] + 1, "long", @DesktopHeight)
            DllCall("gdi32.dll", "long", "CombineRgn", "long", $aM_Mask[0], "long", $aMask[0], "long", $aM_Mask[0], "int", 2)
            DllCall("user32.dll", "long", "SetWindowRgn", "hwnd", $Crosshair, "long", $aM_Mask[0], "int", 1)
            $aLast = $aPos
        EndIf
    EndIf
    _WinAPI_StretchBlt($MyDC, 0, 0, $SIZEX, $SIZEY, $DeskDC, $aPos[0] - ($zoomX / 2), $aPos[1] - ($zoomY / 2), $zoomX, $zoomY, $SRCCOPY)
    Sleep(50)
    $aPos = MouseGetPos()
    _WinAPI_SetWindowText($GUIZoom, "X = " & $aPos[0] & "         Y = " & $aPos[1])
WEnd

GUISetState(@SW_HIDE, $Crosshair)
GUISetState(@SW_HIDE, $GUIZoom)
GUIDelete($Crosshair)
GUIDelete($GUIZoom)
DllClose($UserDLL)

Exit

Func OnAutoItExit()
    _WinAPI_ReleaseDC(0, $DeskDC)
    _WinAPI_ReleaseDC($GUIZoom, $MyDC)
EndFunc   ;==>OnAutoItExit

Func _SetZoom()
    _WinAPI_SetWindowText($GUIZoom, "Crosshair- x" & $z1)
    $zoomX = Int($SIZEX / $z1)
    $zoomY = Int($SIZEY / $z1)
EndFunc   ;==>_SetZoom

Func _WinAPI_StretchBlt($hDestDC, $iXDest, $iYDest, $iWidth, $iHeight, $hSrcDC, $iXSrc, $iYSrc, $iWidthSrc, $iHeightSrc, $iROP)
    Local $aResult = DllCall("GDI32.dll", "int", "StretchBlt", "hwnd", $hDestDC, "int", $iXDest, "int", $iYDest, "int", $iWidth, "int", $iHeight, _
            "hwnd", $hSrcDC, "int", $iXSrc, "int", $iYSrc, "int", $iWidthSrc, "int", $iHeightSrc, "int", $iROP)
    If @error Then Return SetError(@error, 0, False)
    Return $aResult[0] <> 0
EndFunc   ;==>_WinAPI_StretchBlt

Func _ExitApplication()
    $bContinue = False
EndFunc   ;==>_ExitApplication

Angoth

[AlmarM]

Very cool. I made a slight modification to your script to suit my needs. I needed to map out screen coords X,Y for apps to click and check contents. I deleted the Zoom display on the GUI title bar and added a check, display and GUI title bar update for the mouse coords in the While...Wend.

It's still 99.99999999999999999% your code. Thanks. I needed that, badly.

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AlmarM

[Mat]

Funky lil script!

Does anyone know how I could edit this to make the crosshair stick on click, and for a second one to be created, also on click?

I've played around with the script fo the last hour with no success.

I also need it to return the 2 xy coords....

MDiesel

[WideBoyDixon]

Something like this?:

expandcollapse popup

#include <Constants.au3>
#include <GUIConstants.au3>
#include <GUIConstantsEx.au3>
#include <Misc.au3>
#include <WinAPI.au3>
#include <WindowsConstants.au3>

Opt("MustDeclareVars", 1)

HotKeySet("{ESC}", "_ExitApplication")

Global $SIZEX = 256, $SIZEY = 256, $CROSSHAIR_SIZE = 1, $BIG_MOVE = 8
Global $GUIZoom = GUICreate("Zoom", $SIZEX, $SIZEY, 0, 0, BitOR($WS_SYSMENU, $WS_BORDER, $WS_CAPTION), $WS_EX_TOPMOST)
GUISetBkColor(0xEEEEEE)
GUISetState()
Global $Crosshair = GUICreate("", @DesktopWidth, @DesktopHeight, 0, 0, $WS_POPUP, $WS_EX_TOOLWINDOW + $WS_EX_TOPMOST)
GUISetBkColor(0x000000)
GUISetState()

Global $z1 = 4
Global $zoomX = Int($SIZEX / $z1), $zoomY = Int($SIZEY / $z1), $DeskDC = _WinAPI_GetDC(0), $MyDC = _WinAPI_GetDC($GUIZoom)
_WinAPI_SetBkMode($MyDC, 1)
Global $UserDLL = DllOpen("user32.dll")
Global $iCurrent = 0, $bContinue = True, $aPos, $aColor, $aLast[2] = [-1, -1], $aMask, $aM_Mask, $nInc, $aPoints[2][2] = [[-1, -1], [-1, -1]], $i

_SetZoom()
While $bContinue
    $bContinue = (GUIGetMsg() <> $GUI_EVENT_CLOSE)
    If ($aLast[0] <> -1) Then
        $nInc = 1
        If _IsPressed("10", $UserDLL) Then $nInc = $BIG_MOVE
        If _IsPressed("25", $UserDLL) Then MouseMove($aLast[0] - $nInc, $aLast[1])
        If _IsPressed("27", $UserDLL) Then MouseMove($aLast[0] + $nInc, $aLast[1])
        If _IsPressed("26", $UserDLL) Then MouseMove($aLast[0], $aLast[1] - $nInc)
        If _IsPressed("28", $UserDLL) Then MouseMove($aLast[0], $aLast[1] + $nInc)
    EndIf
    $aPos = MouseGetPos()
    If $iCurrent < 2 Then
        $aPoints[$iCurrent][0] = $aPos[0]
        $aPoints[$iCurrent][1] = $aPos[1]
    EndIf
    If _IsPressed("01", $UserDLL) Then
        If $iCurrent < 2 Then
            ToolTip("[" & $aPoints[$iCurrent][0] & "," & $aPoints[$iCurrent][1] & "]", $aPoints[$iCurrent][0], $aPoints[$iCurrent][1])
        EndIf
        $iCurrent += 1
        If $iCurrent > 2 Then $iCurrent = 0
        Do
            Sleep(10)
        Until Not _IsPressed("01", $UserDLL)
        $aLast[0] = -1
    EndIf
    If _IsPressed("21", $UserDLL) And $z1 < 32 Then
        $z1 *= 2
        _SetZoom()
        Do
            Sleep(10)
        Until Not _IsPressed("21", $UserDLL)
        $aLast[0] = -1
    EndIf
    If _IsPressed("22", $UserDLL) And $z1 > 1 Then
        $z1 /= 2
        _SetZoom()
        Do
            Sleep(10)
        Until Not _IsPressed("22", $UserDLL)
        $aLast[0] = -1
    EndIf
    If ($aPos[0] <> $aLast[0]) Or ($aPos[1] <> $aLast[1]) Then
        $aM_Mask = DllCall("gdi32.dll", "long", "CreateRectRgn", "long", 0, "long", 0, "long", 0, "long", 0)
        For $i = 0 To 1
            If $aPoints[$i][0] >= 0 Then
                $aMask = DllCall("gdi32.dll", "long", "CreateRectRgn", "long", 0, "long", $aPoints[$i][1], "long", $aPoints[$i][0] + 1 - $CROSSHAIR_SIZE, "long", $aPoints[$i][1] + 1)
                DllCall("gdi32.dll", "long", "CombineRgn", "long", $aM_Mask[0], "long", $aMask[0], "long", $aM_Mask[0], "int", 2)
                $aMask = DllCall("gdi32.dll", "long", "CreateRectRgn", "long", $aPoints[$i][0], "long", 0, "long", $aPoints[$i][0] + 1, "long", $aPoints[$i][1] + 1 - $CROSSHAIR_SIZE)
                DllCall("gdi32.dll", "long", "CombineRgn", "long", $aM_Mask[0], "long", $aMask[0], "long", $aM_Mask[0], "int", 2)
                $aMask = DllCall("gdi32.dll", "long", "CreateRectRgn", "long", $aPoints[$i][0] + $CROSSHAIR_SIZE, "long", $aPoints[$i][1], "long", @DesktopWidth, "long", $aPoints[$i][1] + 1)
                DllCall("gdi32.dll", "long", "CombineRgn", "long", $aM_Mask[0], "long", $aMask[0], "long", $aM_Mask[0], "int", 2)
                $aMask = DllCall("gdi32.dll", "long", "CreateRectRgn", "long", $aPoints[$i][0], "long", $aPoints[$i][1] + $CROSSHAIR_SIZE, "long", $aPoints[$i][0] + 1, "long", @DesktopHeight)
                DllCall("gdi32.dll", "long", "CombineRgn", "long", $aM_Mask[0], "long", $aMask[0], "long", $aM_Mask[0], "int", 2)
            EndIf
        Next
        DllCall("user32.dll", "long", "SetWindowRgn", "hwnd", $Crosshair, "long", $aM_Mask[0], "int", 1)
        $aLast = $aPos
    EndIf
    _WinAPI_StretchBlt($MyDC, 0, 0, $SIZEX, $SIZEY, $DeskDC, $aPos[0] - ($zoomX / 2), $aPos[1] - ($zoomY / 2), $zoomX, $zoomY, $SRCCOPY)
    Sleep(50)
    $aPos = MouseGetPos()
    $aColor = PixelGetColor($aPos[0], $aPos[1])
    _WinAPI_SetWindowText($GUIZoom, "X: " & $aPos[0] & " Y: " & $aPos[1] & " Color: " & "0x" & Hex($aColor, 6))
WEnd

GUIDelete($Crosshair)
GUIDelete($GUIZoom)
DllClose($UserDLL)

Exit

Func OnAutoItExit()
    _WinAPI_ReleaseDC(0, $DeskDC)
    _WinAPI_ReleaseDC($GUIZoom, $MyDC)
EndFunc   ;==>OnAutoItExit

Func _SetZoom()
    $zoomX = Int($SIZEX / $z1)
    $zoomY = Int($SIZEY / $z1)
EndFunc   ;==>_SetZoom

Func _WinAPI_StretchBlt($hDestDC, $iXDest, $iYDest, $iWidth, $iHeight, $hSrcDC, $iXSrc, $iYSrc, $iWidthSrc, $iHeightSrc, $iROP)
    Local $aResult = DllCall("GDI32.dll", "int", "StretchBlt", "hwnd", $hDestDC, "int", $iXDest, "int", $iYDest, "int", $iWidth, "int", $iHeight, _
            "hwnd", $hSrcDC, "int", $iXSrc, "int", $iYSrc, "int", $iWidthSrc, "int", $iHeightSrc, "int", $iROP)
    If @error Then Return SetError(@error, 0, False)
    Return $aResult[0] <> 0
EndFunc   ;==>_WinAPI_StretchBlt

Func _ExitApplication()
    $bContinue = False
EndFunc   ;==>_ExitApplication

WBD

[Mat]

Yep thats good thanks, I'll be able to play around with that now and turn it into something I can use!! thanks a lot WideBoyDixon!!

MDiesel

[KaFu]

Nice script . Anyone tested in on Vista already? Heard that COP (which also utilizes the gdi32.dll) does have problems on Vista.

Edited April 17, 2009 by KaFu

[Melba23]

All,

Works on my Vista x32 Sp1 HP. Although it does flicker a bit and it occasionally misses the mouse clicks.

M23

[KaFu]

Thanks for the feedback , maybe it's time for another COP update ...

[JSThePatriot]

Love the script...could have used this a while back, saved in my archive now for future use if I so have a need.

Thanks again,

Jarvis

[Skrip]

I like it!

[tonycst]

I get error

"C:\Users\Administrator\Desktop\ARK  DOT.au3"(109,128) : error: _WinAPI_StretchBlt() already defined

running any of the examples above.

[Melba23]

tonycst,

Running code from 9 years ago I am surprised you do not get more errors!

_WinAPI_StretchBlt is now one of the standard AutoIt includes - as a quick glance at the Help file would have told you - so you no longer need it defined as a separate function in the script. Delete those few lines and the example works fine - for me at least.

M23