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SendMessage(WM_CLICK, ...)					

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
private void button2_Click(object sender, EventArgs e)
        {
            Cursor.Position = new Point(760, 240);
            SendMessage(WM_CLICK, ...)
        }}}					

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textBox1.Text = Convert.ToString(Cursor.Position.X);
            textBox2.Text = Convert.ToString(Cursor.Position.Y);

Cursor.Position = new Point(760, 240);					

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//  entweder:
System.Windows.Forms.Cursor.Position = new Point(760, 240);
//  oder:
System.Messaging.Cursor.Position = new Point(760, 240);					

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SendKeys.Send("%({TAB)");					

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SendKeys.Send("%^({DEL)");					

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private void textBox1_MouseClick(object sender, MouseEventArgs e)
{
    SendKeys.Send("(Hallo Test)");
}