"SendMessage" to 3 different processes in C++
- by user1201889
I want to send keystrokes to multiple processes. For example, if I press “1”, then I want to send the “1” to 3 "Notepad windows". Frist I want to try to send a keystroke to notepad, but it fails on the HWND:
//HANDLE hWin;
HWND windowHandle = FindWindowA(NULL, "Notepad"); //Can’t find a proccess
//Send a key
if( windowHandle ) //This one fails
{
while(true)
{
if( GetAsyncKeyState(VK_F12) != 0 )
{
SendMessageA(windowHandle, WM_KEYDOWN, VK_NUMPAD1, 0);
Sleep(1000);
SendMessageA(windowHandle, WM_KEYUP, VK_NUMPAD1, 0);
}
Sleep(100);
}
}
But the "FindWindow" method is not good enough for my program. There is also no way to get 3 different processes with the same name. So how can I make 3 handles to 3 different processes with the same name? And how can I send key’s to the processes?
