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copied!<p>I've found this example on internet. Tested it on my own when I tried to do the same thing as you are trying now.</p> <pre><code>[Flags] private enum InputType { Mouse = 0, Keyboard = 1, Hardware = 2 } [Flags] private enum KeyEventF { KeyDown = 0x0000, ExtendedKey = 0x0001, KeyUp = 0x0002, Unicode = 0x0004, Scancode = 0x0008, } [DllImport("user32.dll", SetLastError = true)] private static extern uint SendInput(uint nInputs, Input[] pInputs, int cbSize); [DllImport("user32.dll")] private static extern IntPtr GetMessageExtraInfo(); public static void SendKey(ushort key) { Input[] inputs = { new Input { type = (int) InputType.Keyboard, u = new InputUnion { ki = new KeyboardInput { wVk = 0, wScan = key, dwFlags = (uint) (KeyEventF.KeyDown | KeyEventF.Scancode), dwExtraInfo = GetMessageExtraInfo() } } } }; SendInput((uint) inputs.Length, inputs, Marshal.SizeOf(typeof (Input))); } private struct Input { public int type; public InputUnion u; } [StructLayout(LayoutKind.Explicit)] private struct InputUnion { [FieldOffset(0)] public readonly MouseInput mi; [FieldOffset(0)] public KeyboardInput ki; [FieldOffset(0)] public readonly HardwareInput hi; } [StructLayout(LayoutKind.Sequential)] private struct MouseInput { public readonly int dx; public readonly int dy; public readonly uint mouseData; public readonly uint dwFlags; public readonly uint time; public readonly IntPtr dwExtraInfo; } [StructLayout(LayoutKind.Sequential)] private struct KeyboardInput { public ushort wVk; public ushort wScan; public uint dwFlags; public readonly uint time; public IntPtr dwExtraInfo; } [StructLayout(LayoutKind.Sequential)] private struct HardwareInput { public readonly uint uMsg; public readonly ushort wParamL; public readonly ushort wParamH; } </code></pre> <p>Now use <code>SendKey(0x14)</code> to send your <code>T</code> key to the active window (or game).</p> <p><strong>Note: You need <code>KeyEventF.Scancode</code> as your flag or the <code>wScan</code> property will be ignored!</strong></p>

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