C#

ThetaClear wrote:

the point that I'm getting in the mouse up event is a point of what?

bool mousePressed = false;
int x = 0;
int y = 0;

private void pictureBox1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
	int backX = this.pictureBox1.Location.X + e.X;
	int backY = this.pictureBox1.Location.Y + e.Y;

	if(this.mousePressed)
	{
		this.pictureBox1.Location = new Point(backX - this.x, backY - this.y);
	}
}

private void pictureBox1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
	x = e.X;
	y = e.Y;
	this.mousePressed = true;
}

private void pictureBox1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
{
	this.mousePressed = false;
}

private void Form1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
{
	this.mousePressed = false;
}

private void TextBox_KeyPress(object sender, KeyPressEventArgs e)
{
 e.Handled = !(char.IsNumeric(e.KeyChar) || char.IsControl(e.KeyChar));
}