How to Set mouse cursor position to a specified point on screen in C#?

Question

How to Set mouse cursor position to a specified point on screen in C#?

am i must hacke the motherboard buffer that receive the mouse and keyboard coordinates and pre

Answer 1

Get and set mouse position in Windows 10:

Much simpler in c# .NET Framework 4.0 using Cursor.Position Property

https://docs.microsoft.com/en-us/dotnet/api/system.windows.forms.cursor.position?view=netcore-3.1

    public static void ClickSomePoint()
    {

        // get mouse position
        System.Drawing.Point screenPos = System.Windows.Forms.Cursor.Position;

        // create X,Y point (0,0) explicitly with System.Drawing 
        System.Drawing.Point leftTop = new System.Drawing.Point(0,0);

        // set mouse position
        Cursor.Position = leftTop; 
        Console.WriteLine(screenPos);
    }

Answer 2

The following will set the mouse position and perform a click:

public static void ClickSomePoint() {
    // Set the cursor position
    System.Windows.Forms.Cursor.Position = new Point(20, 35);

    DoClickMouse(0x2); // Left mouse button down
    DoClickMouse(0x4); // Left mouse button up
}   

static void DoClickMouse(int mouseButton) {
    var input = new INPUT() {
        dwType = 0, // Mouse input
        mi = new MOUSEINPUT() { dwFlags = mouseButton }
    };

    if (SendInput(1, input, Marshal.SizeOf(input)) == 0) { 
        throw new Exception();
    }
}
[StructLayout(LayoutKind.Sequential)]
struct MOUSEINPUT {
    int dx;
    int dy;
    int mouseData;
    public int dwFlags;
    int time;
    IntPtr dwExtraInfo;
}   
struct INPUT {
    public uint dwType;
    public MOUSEINPUT mi;
}   
[DllImport("user32.dll", SetLastError=true)]
static extern uint SendInput(uint cInputs, INPUT input, int size);

Just keep in mind that this could be extremely annoying for a user.

:)

---

If you want to click a button on your form you can use the 'PerformClick()' method.