Copying to ClipBoard By using SendInput, Failure....[Solved]

EuiyongYun

Hi~ I wrote the following function to copy the selected part of NotePad. ( Sending Control+C Message ) However, it does not work! Only 'C' is printed in NotePad. Does anyone know why? >> OS : Windows10 >> Compiler : VisualStudio 2010

Send_KeyBoard_Control_C()
{
HWND notepad = ::FindWindow(__T("NotePad"), NULL );
if (notepad == NULL) {
return;
}
if (!::SetForegroundWindow(notepad)) {
return;
}

int sendCount = 0;
INPUT input;

// Press the "Ctrl" key
ZeroMemory(&input, sizeof(INPUT));
input.type = INPUT\_KEYBOARD;
input.ki.wVk = VK\_CONTROL;
input.ki.wScan = 0;
input.ki.dwFlags = 0;
sendCount += SendInput(1, &input, sizeof(INPUT));

// Press the "C" key
ZeroMemory(&input, sizeof(INPUT));
input.type = INPUT\_KEYBOARD;
input.ki.wScan = 'C';
input.ki.dwFlags = KEYEVENTF\_UNICODE;
sendCount += SendInput(1, &input, sizeof(INPUT));

// Release the "C" key
ZeroMemory(&input, sizeof(INPUT));
input.type = INPUT\_KEYBOARD;
input.ki.wScan = 'C';
input.ki.dwFlags = KEYEVENTF\_UNICODE | KEYEVENTF\_KEYUP;
sendCount += SendInput(1, &input, sizeof(INPUT));

// Release the "Ctrl" key
ZeroMemory(&input, sizeof(INPUT));
input.type = INPUT\_KEYBOARD;
input.ki.wVk = VK\_CONTROL;
input.ki.wScan = 0;
input.ki.dwFlags = KEYEVENTF\_KEYUP;
sendCount += SendInput(1, &input, sizeof(INPUT));

if ( sendCount != 4 ) {
	TRACE("fail\\n");
}

}

Victor Nijegorodov

Why are you using KEYEVENTF_UNICODE flag?

EuiyongYun

Thanks a lot! I fixed it thanks to you.

void Send_KeyBoard_Control_C()
{
HWND notepad = ::FindWindow(__T("NotePad"), NULL );
if (notepad == NULL) {
return;
}

if (!::SetForegroundWindow(notepad)) {
	return;
}

int sendCount = 0;
INPUT input;

// Press the "Ctrl" key
ZeroMemory(&input, sizeof(INPUT));
input.type = INPUT\_KEYBOARD;
input.ki.wVk = VK\_CONTROL;
sendCount += SendInput(1, &input, sizeof(INPUT));

// Press the "C" key
ZeroMemory(&input, sizeof(INPUT));
input.type = INPUT\_KEYBOARD;
input.ki.wVk = 'C';
sendCount += SendInput(1, &input, sizeof(INPUT));

// Release the "C" key
ZeroMemory(&input, sizeof(INPUT));
input.type = INPUT\_KEYBOARD;
input.ki.wVk = 'C';
input.ki.dwFlags = KEYEVENTF\_KEYUP;
sendCount += SendInput(1, &input, sizeof(INPUT));

// Release the "Ctrl" key
ZeroMemory(&input, sizeof(INPUT));
input.type = INPUT\_KEYBOARD;
input.ki.wVk = VK\_CONTROL;
input.ki.dwFlags = KEYEVENTF\_KEYUP;
sendCount += SendInput(1, &input, sizeof(INPUT));

if ( sendCount != 4 ) {
	TRACE("fail\\n");
}

}

Victor Nijegorodov

:)