Plugin AccessStringVariable write

Burst · Feb 14th 2026

Hi,

I have a plugin written in C#.
I want to set a stringvar's value, but i dont know how to do it.

Please help!

Here is my example method:

Code

[UnmanagedCallersOnly(CallConvs = new[] { typeof(CallConvCdecl) })]
public static void AccessStringVariable(ushort variableIndex, [C99Type("char*")] IntPtr firstCharacterAddress, [C99Type("__crt_bool*")] IntPtr writeValue)
{
string val = Marshal.PtrToStringUni(firstCharacterAddress);
if (variableIndex == 10)
{
if (val != ConnectionString)
{
Log($"In-game ConnectionString: '{val}'");
Log($"Plugin ConnectionString: '{ConnectionString}'");
Log($"Setting ConnectionString...");
try
{
//Methods i tried (but not worked)
//Method 1
for (int i = 0; i < ConnectionString.Length; i++)
{
Marshal.WriteInt16(firstCharacterAddress, i * 2, ConnectionString[i]);
}
Marshal.WriteInt16(firstCharacterAddress, ConnectionString.Length * 2, 0);
Marshal.StructureToPtr<bool>(true, writeValue, false);
//Method 2
var chars = Encoding.Unicode.GetBytes($"{ConnectionString}\0");
Marshal.Copy(chars, 0, firstCharacterAddress, chars.Length);
Marshal.StructureToPtr<bool>(true, writeValue, false);
Log($"ConnectionString set!");
}
catch (Exception e)
{
Log($"Failed to set ConnectionString! Msg: {e.Message}");
}
}
}
}

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