I am trying to use sendkeys, but send it to a non focused program. For example, I want to use sendkeys to Notepad - Untitled, without it being focused. Sorry if it's unclear, I will elaborate. My current code is this:
string txt = Regex.Replace(richTextBox3.Text, "[+^%~()]", "{$0}");
System.Threading.Thread.Sleep(1000);
SendKeys.Send(txt + "{ENTER}");
If I use SendMessage, would anyone care to show me an example of what I should do? I don't find anything I found online very useful for my issue.
The following code I found from a previous SO answer. The PostMessage API will send a Windows message to a specific Windows handle. The code below will cause the key down event to fire for all instances of Internet Explorer, without giving focus, simulating that the F5 key was pressed. A list of additional key codes can be found here.
static class Program
{
const UInt32 WM_KEYDOWN = 0x0100;
const int VK_F5 = 0x74;
[DllImport("user32.dll")]
static extern bool PostMessage(IntPtr hWnd, UInt32 Msg, int wParam, int lParam);
[STAThread]
static void Main()
{
while(true)
{
Process [] processes = Process.GetProcessesByName("iexplore");
foreach(Process proc in processes)
PostMessage(proc.MainWindowHandle, WM_KEYDOWN, VK_F5, 0);
Thread.Sleep(5000);
}
}
}