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_WinAPI_SelectObject - example from HelpFile

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I'am trying to use this example from help file:

#include <WinAPI.au3>
#include <WindowsConstants.au3>

ShowCross(@DesktopWidth / 2, @DesktopHeight / 2, 20, 2, 0xFF, 3000)

Func ShowCross($iStart_x, $iStart_y, $iLength, $iWidth, $iColor, $iTime)
    Local $hDC, $hPen, $o_Orig

    $hDC = _WinAPI_GetWindowDC(0) ; DC of entire screen (desktop)
    $hPen = _WinAPI_CreatePen($PS_SOLID, $iWidth, $iColor)
    $o_Orig = _WinAPI_SelectObject($hDC, $hPen)

    _WinAPI_DrawLine($hDC, $iStart_x - $iLength, $iStart_y, $iStart_x - 5, $iStart_y) ; horizontal left
    _WinAPI_DrawLine($hDC, $iStart_x + $iLength, $iStart_y, $iStart_x + 5, $iStart_y) ; horizontal right
    _WinAPI_DrawLine($hDC, $iStart_x, $iStart_y - $iLength, $iStart_x, $iStart_y - 5) ; vertical up
    ;   _WinAPI_DrawLine($hDC, $iStart_x, $iStart_y + $iLength, $iStart_x, $iStart_y + 5) ; vertical down
    _WinAPI_MoveTo($hDC, $iStart_x, $iStart_y + $iLength)
    _WinAPI_LineTo($hDC, $iStart_x, $iStart_y + 5)

    Sleep($iTime) ; show cross over screen for defined seconds

    ; refresh desktop (clear cross)
    _WinAPI_RedrawWindow(_WinAPI_GetDesktopWindow(), 0, 0, $RDW_INVALIDATE + $RDW_ALLCHILDREN)

    ; clear resources
    _WinAPI_SelectObject($hDC, $o_Orig)
    _WinAPI_ReleaseDC(0, $hDC)
EndFunc   ;==>ShowCross

It seems that this line:

Sleep($iTime) ; show cross over screen for defined seconds

It does not cause the desired effect.

Any concept why ?


you can change this sleep with MsgBox and you will see that Cross disapear in a twinkling of an eye.

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SciTE refreshes the desktop. Run script compiled to see the difference.



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