Resizable status bar without SBARS_SIZEGRIP

[WildByDesign]

For what it's worth, here is what ended up working for me:

;==============================================
Func WM_MOVE($hWnd, $iMsg, $wParam, $lParam)
    #forceref $iMsg, $wParam, $lParam
    Local Static $bSizeboxOffScreen = False

    If $hWnd = $g_hGUI Then
        Local $aPos = WinGetPos($g_hSizebox)
        If $aPos[0] + $aPos[2] > @DesktopWidth Or $aPos[1] + $aPos[3] > @DesktopHeight Then
            $bSizeboxOffScreen = True
        Else
            If $bSizeboxOffScreen Then
                ; sizebox was off-screen but is back in range now, redraw GUI
                _WinAPI_RedrawWindow($g_hGui)
                $bSizeboxOffScreen = False
            EndIf
        EndIf
        _WinAPI_RedrawWindow($g_hSizebox)
    EndIf
    Return $GUI_RUNDEFMSG
EndFunc   ;==>WM_MOVE

Keep in mind that this may or may not work in a multi-monitor setup. However, multi-monitor setups require quite a bit different DPI scaling settings and so on. So this is quite basic but it works 100% of the time for me.