C / C++ / MFC

<br />
#include "KeyHook.h"<br />
<br />
// ID of the notification message that will be sent to us<br />
#define WM_MY_MESSAGE (WM_APP + 100)<br />
<br />
ON_MESSAGE(WM_MY_MESSAGE, OnMyMessage) // Maps our message<br />
<br />
// Install the hook<br />
LRESULT lRes = InstallKeyHook();<br />
ASSERT(lRes == KH_OK);  // Check if passed<br />
<br />
// Prepare the KEYENTRY struct<br />
KEYENTRY ke;<br />
ke.nMessage = WM_MY_MESSAGE; // Our message ID<br />
ke.hCallWnd = m_hWnd; // Send message to this window<br />
ke.hHookWnd = 0; // Capture key-strokes occurred in any windows<br />
ke.iCombKeys = 0; // Combination key states do not matter<br />
ke.iIndicators = 0; // Caps-lock, Num-lock, Scroll-lock on/off states do not matter<br />
ke.iKeyEvent = KH_KEY_DOWN | KH_KEY_UP; // Capture key-down and key-up events<br />
ke.iMinVKCode = 0; // Capture all keys regardless of their virtual key codes<br />
ke.iMaxVKCode = 255;<br />
<br />
// Add the entry to the hook<br />
lRes = AddKeyEntry(&ke);<br />
ASSERT(lRes == KH_OK);  // Check if passed<br />
    <br />
<br />
// Handler of WM_MY_MESSAGE notification<br />
LRESULT CPluginTestDlg::OnMyMessage(WPARAM wParam, LPARAM lParam)<br />
{<br />
    // The struct to receive information<br />
    KEYRESULT kr; <br />
<br />
    // Information that we need to extract are event type and printable character<br />
    UINT nMask = KH_MASK_EVENTTYPE | KH_MASK_PRINTABLECHAR;<br />
 <br />
    // This function extracts event details<br />
    LRESULT lRes = GetKeyEventResult(wParam, lParam, &kr, nMask);<br />
    ASSERT(lRes == KH_OK);  // Check if passed<br />
<br />
    // We only display key-strokes that produce printable characters<br />
    if (kr.chPrintableChar != 0)<br />
    {<br />
        CString sEvent;<br />
        if (kr.iKeyEvent == KH_KEY_DOWN)<br />
            sEvent = _T("Key Down");<br />
        else if (kr.iKeyEvent == KH_KEY_UP)<br />
            sEvent = _T("Key Up");<br />
        else if (kr.iKeyEvent == KH_KEY_REPEAT)<br />
            sEvent = _T("Key Repeat");<br />
        else<br />
            ASSERT(FALSE); // will never happen<br />
<br />
        CString sMsg;<br />
        sMsg.Format(_T("Event: %s\nCharacter:%c"), sEvent, kr.chPrintableChar);<br />
        MessageBox(sMsg); // display the result<br />
    }<br />
<br />
    return (LRESULT)0;<br />
}<br />
<br />
<br />
// Remove the hook<br />
UninstallKeyHook();<br />

Punima Sen wrote:

Please send me Vernam Cipher C code

Ben Aldhouse wrote:

It doesn't seem like a very nice bit of code to me. Could it be replaced with WaitForSingleObject or something, somehow?

CString* pString = new CString(FindFileData.cFileName);
SendMessageTimeout(pMyView->GetSafeHwnd(), CURFILEEVENT, (WPARAM)pString, 0, 0,  1000, 0);
delete pString;

LRESULT CRecThread2008_64Dlg::OnCURFILEEVENT(UINT wParam, LONG lParam)
{

	CString* pString = (CString*)wParam;
	CString tempStr = pString->GetBuffer();

	m_iNoFiles++;
	CString tString=LPCTSTR("");
	tString.Format(_T("%d"),m_iNoFiles);
	m_strNoFiles = tString;
    
	m_strFileList= tempStr + _T("\r\n")+ m_strFileList;
	m_strFileList = m_strFileList.Left(500);

    UpdateData(FALSE);    
    return 0;
}

Le@rner wrote:

I really need to do this.