You can display a default value in the text box of an input box by using the DefaultResponse argument of theInputBox() function.

To pick a color from the color dialog box, you need to create an instance of the ColorDialog box and invoke to the ShowDialog() method. The code to display the color dialog box and set the BackColor property of the Label control similar to the color selected in the color dialog box control is:
private void button1_Click(object sender, EventArgs e)
{
if (colorDialog1.ShowDialog() != DialogResult.Cancel)
{
label1.Text = "Here's my new color!";
label1.BackColor = colorDialog1.Color;
}
}

There is an Interval property, which is responsible to get and set the time in milliseconds.

The RichTextBox control contains the Lines array property, which displays one item of an array in a separate line. Each line entry has a Length property, which can be used to accurately position the cursor at a character, as shown in the following code snippet:
private void GoToLineAndColumn(RichTextBox RTB, int Line, int Column)
{
int offset = 0;
for(int i = 0; i < Line -1 && i < RTB.Lines.Length; i++)
{
offset += RTB.Lines[i].Length + 1;
}
RTB.Focus();
RTB.Select(offset + Column, 0);
}

The WindowsDefaultLocation property makes the form to start up at a location selected by the operating system, but with internally specified size. The WindowsDefaultBounds property delegates both size and starting position choices to the operating system.