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Add special case to handle windows buttons #21

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4f6d81f
Add special case to handle windows buttons as modifiers using virtual…
tech2077 Oct 17, 2019
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Add special case to handle windows buttons as modifiers using virtual…
tech2077 Oct 17, 2019
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45 changes: 37 additions & 8 deletions ArcadeControlPanel/SendRawInput.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -92,6 +92,41 @@ struct HARDWAREINPUT
// Send a single keystroke
public static void SendKey(ushort scanKey, bool KeyDown, bool KeyUp, int delay = 0)
{
KEYBDINPUT keybdi;

// Special case for using virtual-key for windows keys since
// it seems the direct scancode method is broken for them
if (scanKey == (ushort)KeyCodes.WIN || scanKey == (ushort)KeyCodes.RWIN)
{
ushort vk_code;

// assign virtual-key code
// https://docs.microsoft.com/en-us/windows/win32/inputdev/virtual-key-codes
if (scanKey == (ushort)KeyCodes.WIN)
{
vk_code = 0x5B;
} else // RWIN
{
vk_code = 0x5C;
}

keybdi = new KEYBDINPUT
{
wVk = vk_code,
dwFlags = 0
};
} else // Direct scancode method
{
keybdi = new KEYBDINPUT
{
wVk = 0,
wScan = scanKey,
dwFlags = KEYEVENTF_SCANCODE,
dwExtraInfo = IntPtr.Zero,
};
}


// Not sure why this is an array; investigate later
INPUT[] keyPress = new INPUT[]
{
Expand All @@ -100,13 +135,7 @@ public static void SendKey(ushort scanKey, bool KeyDown, bool KeyUp, int delay =
type = INPUT_KEYBOARD,
u = new InputUnion
{
ki = new KEYBDINPUT
{
wVk = 0,
wScan = scanKey,
dwFlags = KEYEVENTF_SCANCODE,
dwExtraInfo = IntPtr.Zero,
}
ki = keybdi
}
},
};
Expand All @@ -126,7 +155,7 @@ public static void SendKey(ushort scanKey, bool KeyDown, bool KeyUp, int delay =
if (KeyUp == true)
{
// key UP
keyPress[0].u.ki.dwFlags = KEYEVENTF_KEYUP | KEYEVENTF_SCANCODE;
keyPress[0].u.ki.dwFlags |= KEYEVENTF_KEYUP;
if (SendInput((uint)keyPress.Length, keyPress, Marshal.SizeOf(typeof(INPUT))) == 0)
{
throw new SendRawInputException("SendInput failed with code: " + Marshal.GetLastWin32Error().ToString());
Expand Down