Simulating Keyboard with SendInput API in DirectInput applications

Question

I\'m trying to simulate keyboard commands for a custom game controller application. Because I\'ll need to simulate commands in a DirectInput environment most of the usual m

Answer 1

I was trying to simulate keyboards for a presentation in Flash, and was also having the same problem. It did work for apps like Notepad, but not for flash. After hours of googling I finally made it work:

public static void GenerateKey(int vk, bool bExtended)
    {
        INPUT[] inputs = new INPUT[1];
        inputs[0].type = INPUT_KEYBOARD;

        KEYBDINPUT  kb = new KEYBDINPUT(); //{0};
        // generate down 
        if ( bExtended )
            kb.dwFlags  = KEYEVENTF_EXTENDEDKEY;

        kb.wVk  = (ushort)vk;  
        inputs[0].ki = kb;
        SendInput(1, inputs, System.Runtime.InteropServices.Marshal.SizeOf(inputs[0]));

        // generate up 
        //ZeroMemory(&kb, sizeof(KEYBDINPUT));
        //ZeroMemory(&inputs,sizeof(inputs));
        kb.dwFlags  =  KEYEVENTF_KEYUP;
        if ( bExtended )
            kb.dwFlags  |= KEYEVENTF_EXTENDEDKEY;

        kb.wVk    =  (ushort)vk;
        inputs[0].type =  INPUT_KEYBOARD;
        inputs[0].ki  =  kb;
        SendInput(1, inputs, System.Runtime.InteropServices.Marshal.SizeOf(inputs[0]));
    }