Attempting to Simulate Mouse Click / Drag

Question

So I\'m trying to simulate the left mouse click and the left mouse release to do some automated dragging and dropping.

It\'s currently in a C# Winforms (Yes, winform

Answer 1

The following code should return true if the left mouse button is down, false if it is up, Control being System.Windows.Forms.Control:

    Control.MouseButtons.HasFlag(MouseButtons.Left)

p.s. documentation for this can be found on MSDN here.

Answer 2

The Easiest answer was infact to use a bool and just check to see what's going on.

I started it on a new thread so it didn't break everything else.

Idealy you'd tidy this up a little bit.

    public static void Grab(int xPos, int yPos)
    {
        _dragging = true;

        Cursor.Position = new Point(xPos, yPos + offSet);
        mouse_event(leftDown, (uint) xPos, (uint) yPos, 0, 0);

        var t = new Thread(CheckMouseStatus);
        t.Start();
    }
    public static void Release(int xPos, int yPos)
    {
        _dragging = false;
        Cursor.Position = new Point(xPos, yPos + offSet);
        mouse_event(leftUp, (uint) xPos, (uint) yPos, 0, 0);
    }

    private static void CheckMouseStatus()
    {
        do
        {
            Cursor.Position = new Point(KinectSettings.movement.HandX, KinectSettings.movement.HandY + offSet);
        } 
        while (_dragging);
    }

Answer 3

[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
    private static extern void mouse_event(uint dwFlags, int dx, int dy, uint cButtons, uint dwExtraInfo);

    [DllImport("user32.dll")]
    static extern bool SetCursorPos(int X, int Y);

    const uint MOUSEEVENTF_LEFTDOWN = 0x0002;
    const uint MOUSEEVENTF_LEFTUP = 0x0004;
    const uint MOUSEEVENTF_MOVE = 0x0001;

    static void Drag(int startX,int startY,int endX,int endY)
    {
        endX = endX - startX;
        endY = endY - startY;
        SetCursorPos(startX, startY);
        mouse_event(MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0);
        mouse_event(MOUSEEVENTF_MOVE, endX, endY, 0, 0);
        mouse_event(MOUSEEVENTF_LEFTUP, 0, 0, 0, 0);
    }