C# SendKeys press only single process continuous

Question

Hello All,
I try to make a application in c# its send a key press in a single process but its continuous. Bt i face a problem  when i use timer and use sendkeys.send() then that key send all process in windows which is active. i try in different way in sendkeys.send
wait  with sleep thread but its  doing single time.
Is it possible that i send key press continuous a process if its running background in c#.
here is my code wht i work.
[DllImport("user32.dll")]
static extern bool SetForegroundWindow(IntPtr hWnd);
[DllImport("user32.dll")]
static extern IntPtr GetForegroundWindow();
[DllImport("User32.DLL")]
static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
public const int SW_RESTORE = 9;
private void startbt_Click(object sender, EventArgs e)
try
attktim.Enabled = true;
// int interval = int.Parse(textBox2.Text);
// timer1.Interval = interval * 1000;
Process[] processes = Process.GetProcesses();
Process[] localByName = Process.GetProcessesByName("notepad");
Process p = Process.GetProcessesByName("notepad").FirstOrDefault();
IntPtr Handle = FindWindow(null, "Untitled - Notepad");
//foreach (Process process in localByName)
if (p != null && attkchk.Checked==true)
//Process game1 = localByName[0];
//IntPtr D = game1.MainWindowHandle;
//SetForegroundWindow(D);
attktim.Enabled = true;
int interval = int.Parse(attktxt.Text);
attktim.Interval = interval * 1000;
catch
attktim.Enabled = false;
MessageBox.Show("No input ....", "Damu");
Process p = new Process();
p.StartInfo.FileName = "notepad.exe";
p.Start();
Thread.Sleep(1000);
SendKeys.SendWait("some text");
SendKeys.SendWait("A");
IntPtr dialogHandle = GetForegroundWindow();
System.Diagnostics.Trace.WriteLine("notepad handle: " + p.MainWindowHandle);
System.Diagnostics.Trace.WriteLine("dialog handle: " + dialogHandle);
Thread.Sleep(5000);
SetForegroundWindow(p.MainWindowHandle);
ShowWindow(dialogHandle, SW_RESTORE);
Thread.Sleep(1000);
SendKeys.SendWait("n");
private void attktim_Tick(object sender, EventArgs e)
SendKeys.Send("{`}");
//SendKeys.SendWait("{2}");
//Thread.Sleep(1000);
//SendKeys.SendWait("{2}");
Thanks for help

Answer 1

try this:>
[DllImport("User32.dll")]
public static extern int SendMessage(IntPtr hWnd, uint msg, int wparam, int lparam);
and you can read the links below,mybe assis you:>
http://tiku.io/questions/1672700/c-sharp-sendkeys-sendwait-to-a-dialog-of-another-process-notepad-exe
http://www.c-sharpcorner.com/UploadFile/40e97e/send-keys-to-application-programmatically-using-C-Sharp/
Mark as answer or vote as helpful if you find it useful | Ammar Zaied [MCP]