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im using keybd_event(); and i want use SendMessage(); to send keystroke to notepad, can this be done?
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Go to Start , then select Settings > Ease of Access > Keyboard, and turn on the toggle under Use the On-Screen Keyboard. A keyboard that can be used to move around the screen and enter text will appear on the screen. The keyboard will remain on the screen until you close it.
There are two methods to send keystrokes to an application: SendKeys. Send and SendKeys. SendWait. The difference between the two methods is that SendWait blocks the current thread when the keystroke is sent, waiting for a response, while Send doesn't.
using SendMessage to insert text into the edit buffer (which it sounds like you want):
HWND notepad = FindWindow(_T("Notepad"), NULL);
HWND edit = FindWindowEx(notepad, NULL, _T("Edit"), NULL);
SendMessage(edit, WM_SETTEXT, NULL, (LPARAM)_T("hello"));
if you need keycodes and arbitrary keystrokes, you can use SendInput() (available in 2k/xp and preferred), or keybd_event()` (which will end up calling SendInput in newer OSs) some examples here:
http://www.codeguru.com/forum/showthread.php?t=377393
there's also WM_SYSCOMMAND/WM_KEYDOWN/WM_KEYUP/WM_CHAR events for SendMessage which you might be interested in.
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