Trouble getting program to recieve simulated xinput

I have been writing a program which needs to simulate an input from a controller. I have been using SendInput() with a keyboard input and used VK_GAMEPAD_A as my test key.

Code:

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void PressButton(WORD key, unsigned short time = 50)
{
    INPUT Input = { 0 };
    unsigned int size = sizeof(INPUT);
    WORD vKey = MapVirtualKey(key, 0);

    Input.type = INPUT_KEYBOARD;
    Input.ki.wScan = vKey;
    Input.ki.dwExtraInfo = GetMessageExtraInfo();
    Input.ki.dwFlags = KEYEVENTF_SCANCODE;
    SendInput(1, &Input, size);

    Sleep(100);
    ZeroMemory(&Input, size);
    Input.type = INPUT_KEYBOARD;
    Input.ki.wScan = vKey;
    Input.ki.dwExtraInfo = GetMessageExtraInfo();
    Input.ki.dwFlags = KEYEVENTF_SCANCODE;
    SendInput(1, &Input, size);
    Sleep(time);
}

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When I run this code nothing happens. Is this a problem with my code or with the receiving program? Am I using the right keycode?

Also I will need to do joysticks and triggers. There will be a float or double as the input for those.

SendInput requires that the receiving window has focus. Are you able to send a regular key (say an, 'A') to a window like notepad?

Quote:

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Originally Posted by Arjay

SendInput requires that the receiving window has focus. Are you able to send a regular key (say an, 'A') to a window like notepad?

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Yes, I am able to send mouse and keyboard input. I noticed that I didn't include KEYEVENTF_KEYUP to the dwFlags list, however this didn't fix the issue.