how to make a internal

so i just wanted to make a client.

but idk how :9

so then i posted here so i can get some answers


what i wanted to make is an ImGui hack so i can drag windows with hack module on it
i just wanted to see how to make to visual studio code, or any base code that i can work on

because i dont think my base code is working at all and idk how to make ImGui windows that
actually can give you items
i have not worked with ImGui before and i've only ever tried building an .exe example build that
doesn't even have any referenced adresses
my whole life i have never even injected an ImGui dll to terraria :1

i tried making the dll but i failed only for it to build but not make a window (;1)

im sad and seeking help and yes i am sane

about GUI: https://******.com/nikuya3/xnaforms

chat : Main.DoUpdate_HandleChat() 'commands'
interface : Main.drawFPS() 'buttons'
update : Player.update() and Player.updatebuffs() 'mods'

examples:
chat:
if (message.toLower() == ".godmode") //if the message matches ".godmode", then godmode - toggles its value (true-false, false-true) .toLower - returns a copy of this string converted to lowercase (So that the command is accepted by such, sUcH, SUCH letters)
{
Mods.godmode = !Mods.godmode;
Main.newText((godmode ? "En" : "Dis") + "able godmode."); //if godmode = true -> En, else -> Dis
}
update:
if (godmode)
{
Main.player[Main.myPlayer].statLife = Main.player[Main.myPlayer].statLifeMax; //infhp
Main.player[Main.myPlayer].statMana = Main.player[Main.myPlayer].statManaMax; //infmana
Main.player[Main.myPlayer].breath = Main.player[Main.myPlayer].breathMax - 1; //infbreath
if (Terraria.Main.netMode == 1)
{
NetMessage.SendData(16, -1, -1, null, Terraria.Main.myPlayer, 0f, 0f, 0f, 0, 0, 0); //send packet to server
}
}
interface:
if (Mods.godmode)
{
Main.spriteBatch.DrawString(FontAssets.MouseText.V alue, "Godmode", new Vector2(30f, 20f), Color.Green, 0f, default(Vector2), 1f, SpriteEffects.None, 0f); //create an inscription "Godmode", if godmode enable. vector2 - position (х,y) and etc.
}