Componente teclado virtual

Provavelmente o objeto bttn não está sendo passado corretamente. Teria como você disponibilizar o projeto?

blz... eu coloquei neste link os fontes do componente

http://www.4shared.com/rar/d66bK552/V-Keyboard.html

segue todo o fonte

a chamada de um form

private void txtQtd_GotFocus(object sender, EventArgs e)
{
VKeyboard teclado = new VKeyboard();
teclado.VKey += new VKeyboard.KeyToTxt(key);
}

void key(string s)
{
txtQtd.Text += s;
}


FONTES DO COMPONENTE

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

using System.Collections;
using System.IO;

namespace V_Keyboard
{
public partial class VKeyboard : UserControl
{
public delegate void KeyToTxt(string s);
public event KeyToTxt VKey;

public VKeyboard()
{
InitializeComponent();
}

private void AddToArray(Button bttn)
{
VKey(bttn.Text);
}

private void cmd1_Click(object sender, EventArgs e)
{
AddToArray(cmd1);
}

private void cmd2_Click(object sender, EventArgs e)
{
AddToArray(cmd2);
}

private void cmd3_Click(object sender, EventArgs e)
{
AddToArray(cmd3);
}

private void cmd4_Click(object sender, EventArgs e)
{
AddToArray(cmd4);
}

private void cmd5_Click(object sender, EventArgs e)
{
AddToArray(cmd5);
}

private void cmd6_Click(object sender, EventArgs e)
{
AddToArray(cmd6);
}

private void cmd7_Click(object sender, EventArgs e)
{
AddToArray(cmd7);
}

private void cmd8_Click(object sender, EventArgs e)
{
AddToArray(cmd8);
}

private void cmd9_Click(object sender, EventArgs e)
{
AddToArray(cmd9);
}

private void cmd0_Click(object sender, EventArgs e)
{
AddToArray(cmd0);
}

private void cmdV_Click(object sender, EventArgs e)
{
AddToArray(cmdV);
}

private void cmdL_Click(object sender, EventArgs e)
{
AddToArray(cmdL);
}

private void VKeyboard_Click(object sender, EventArgs e)
{

}
}
}