// releases a key
private void KeyUp(ushort scanCode)
{
INPUT[] inputs = new INPUT[1];
inputs[0].type = WMP.INPUT_KEYBOARD;
inputs[0].ki.wScan = scanCode;
inputs[0].ki.dwFlags = WMP.KEYEVENTF_KEYUP | WMP.KEYEVENTF_SCANCODE;
uint intReturn = WMP.SendInput(1, inputs, System.Runtime.InteropServices.Marshal.SizeOf(inputs[0]));
if (intReturn != 1)
{
throw new Exception("Could not send key: " + scanCode);
}
}
// press or release a key ch based on the boolean press
private void PressKey(char ch, bool press)
{
byte vk = WMP.VkKeyScan(ch);
ushort scanCode = (ushort)WMP.MapVirtualKey(vk, 0);
if (press)
{
KeyDown(scanCode);
}
else
{
KeyUp(scanCode);
}
}
private bool focusApp(string app)
{
if (!checkBuffer())
{
stopWatch.Start();
return(false);
}
Process[] processes = Process.GetProcessesByName(app);
if (processes.Length == 0)
{
stopWatch.Start();
return(false);
}
IntPtr WindowHandle = processes[0].MainWindowHandle;
WMP.SwitchWindow(WindowHandle);
return(true);
}