I am using a source from my friend for my game to change bytes.

It looks like this

Code:
		private void WallHackToggle()
		{
			if (WallHack) 
			{
				if (oM.OpenProcess(GameProcess) &&
                oM.Write(0x0084444, new byte[] { 0x74, 0x22 }))             
				{
					WallHack = false;
					hListView.Items[1].BackColor = Color.FromArgb(255, 0, 0);
				}
			}
			else 
			{
				if (oM.OpenProcess(GameProcess) &&
                   oM.Write(0x00844444, new byte[] { 0xeb, 0x22 })) 
				{
					WallHack = true;
					hListView.Items[1].BackColor = Color.FromArgb(0, 255, 0);
				}
			}
		}
what I wont to do is declare the address in this case = 0x0084444 somewhere on top of the page so I do not have to search allways when I update something true the codes. How can I do this?