Use same code on another button

Use same code on another button

I'm using the exact same code multiple times and I thought that it would
be quite inefficient to just copy/paste everything. Is there a way for
let's say button2 to use the exact same code as button1 without
copy/pasting everything?
Some of my code is very big, that's why I'm asking.
I'm aware of this for example:
private TabPage T
{
get { return (t.SelectedTab); }
}
However I have no idea how to make this work for this: (Yes, there are
multiple ways to enable Full Screen mode in my application)
if (FormBorderStyle != FormBorderStyle.None)
{
FormBorderStyle = FormBorderStyle.None;
WindowState = FormWindowState.Normal;
WindowState = FormWindowState.Maximized;
p1.BackColor = Color.White;
p2.BackColor = Color.White;
TopMost = true;
c2.Visible = false;
Wi.Visible = false;
t1.Visible = false;
F.Text = "Exit Full Screen";
t2.Text = "Exit Full Screen";
}
else
{
FormBorderStyle = FormBorderStyle.Sizable;
if (Environment.OSVersion.Version.Build >= 7000)
{
if (DWM.DwmIsCompositionEnabled())
{
Color c = Color.FromArgb(255, 221, 220, 220);
TransparencyKey = c;
p1.BackColor = c;
p2.BackColor = c;
MARGINS mr = new MARGINS();
mr.T = 1800;
IntPtr h = Handle;
int result = DwmExtendFrameIntoClientArea(h, ref mr);
}
}
TopMost = false;
Wi.Visible = true;
t1.Visible = true;
F.Text = "Full Screen";
t2.Text = "Full Screen";
}