systemtray.cpp

可选择硬盘中的特定文件加密解密

///////////////////////////////////////////////////
//CsystemTray的实现文件
#include "stdafx.h"
#include "SystemTray.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/*
	Create(CWnd* pWnd, UINT uCallbackMessage, LPCTSTR szTip, HICON icon, UINT uID); 

　　功能：

　　　生成一个图标。 

　　参数说明：

　　　pWnd：程序的主窗口，

　　　uCallbackMessage：对应的消息映射，

　　　szTip：鼠标停留时的提示文字，

　　　icon：显示的图标，

　　　uID：与之对应的菜单ID

　　· BOOL CSystemTray::SetIcon(HICON hIcon) 

　　　 BOOL CSystemTray::SetIcon(LPCTSTR lpszIconName)

　　　 BOOL CSystemTray::SetIcon(UINT nIDResource)

　　　 BOOL CSystemTray::SetStandardIcon(LPCTSTR lpIconName)

　　　 BOOL CSystemTray::SetStandardIcon(UINT nIDResource)

　　　功能：更改托盘上的图标。

　　void CSystemTray::ShowIcon() 

　　　功能：显示图标。

　　· BOOL CSystemTray::SetTooltipText(LPCTSTR pszTip) 

　　　 BOOL CSystemTray::SetTooltipText(UINT nID)

　　　功能：提示显示文字。
*/


IMPLEMENT_DYNAMIC(CSystemTray, CObject)

/////////////////////////////////////////////////
// CSystemTray construction/creation/destruction

CSystemTray::CSystemTray()
{
memset(&m_tnd, 0, sizeof(m_tnd));
m_bEnabled = FALSE;
m_bHidden = FALSE;
}

CSystemTray::CSystemTray(CWnd* pWnd, UINT uCallbackMessage, LPCTSTR szToolTip, HICON icon, UINT uID)
{
Create(pWnd, uCallbackMessage, szToolTip, icon, uID);
m_bHidden = FALSE;
}

BOOL CSystemTray::Create(CWnd* pWnd, UINT uCallbackMessage, LPCTSTR szToolTip, HICON icon, UINT uID)
{
// this is only for Windows 95 (or higher)
VERIFY(m_bEnabled = ( GetVersion() & 0xff ) >= 4);
if (!m_bEnabled) return FALSE;

//Make sure Notification window is valid
VERIFY(m_bEnabled = (pWnd && ::IsWindow(pWnd->GetSafeHwnd())));
if (!m_bEnabled) return FALSE;

//Make sure we avoid conflict with other messages
ASSERT(uCallbackMessage >= WM_USER);

//Tray only supports tooltip text up to 64 characters
ASSERT(_tcslen(szToolTip) <= 64);

// load up the NOTIFYICONDATA structure
m_tnd.cbSize = sizeof(NOTIFYICONDATA);
m_tnd.hWnd = pWnd->GetSafeHwnd();
m_tnd.uID = uID;
m_tnd.hIcon = icon;
m_tnd.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;
m_tnd.uCallbackMessage = uCallbackMessage;
strcpy (m_tnd.szTip, szToolTip);

// Set the tray icon
m_pFrame = (CFrameWnd*)pWnd;
VERIFY(m_bEnabled = Shell_NotifyIcon(NIM_ADD, &m_tnd));
return m_bEnabled;
}

CSystemTray::~CSystemTray()
{
RemoveIcon();
}


/////////////////////////////////////////////
// CSystemTray icon manipulation

void CSystemTray::MoveToRight()
{
HideIcon();
ShowIcon();
}

void CSystemTray::RemoveIcon()
{
if (!m_bEnabled) return;

m_tnd.uFlags = 0;
Shell_NotifyIcon(NIM_DELETE, &m_tnd);
m_bEnabled = FALSE;
}

void CSystemTray::HideIcon()
{
if (m_bEnabled && !m_bHidden) {
m_tnd.uFlags = NIF_ICON;
Shell_NotifyIcon (NIM_DELETE, &m_tnd);
m_bHidden = TRUE;
}
}

void CSystemTray::ShowIcon()
{
if (m_bEnabled && m_bHidden) {
m_tnd.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;
Shell_NotifyIcon(NIM_ADD, &m_tnd);
m_bHidden = FALSE;
}
}

BOOL CSystemTray::SetIcon(HICON hIcon)
{
if (!m_bEnabled) return FALSE;

m_tnd.uFlags = NIF_ICON;
m_tnd.hIcon = hIcon;

return Shell_NotifyIcon(NIM_MODIFY, &m_tnd);
}

BOOL CSystemTray::SetIcon(LPCTSTR lpszIconName)
{
HICON hIcon = AfxGetApp()->LoadIcon(lpszIconName);

return SetIcon(hIcon);
}

BOOL CSystemTray::SetIcon(UINT nIDResource)
{
HICON hIcon = AfxGetApp()->LoadIcon(nIDResource);

return SetIcon(hIcon);
}

BOOL CSystemTray::SetStandardIcon(LPCTSTR lpIconName)
{
HICON hIcon = LoadIcon(NULL, lpIconName);

return SetIcon(hIcon);
}

BOOL CSystemTray::SetStandardIcon(UINT nIDResource)
{
HICON hIcon = ::LoadIcon(AfxGetInstanceHandle(), MAKEINTRESOURCE(nIDResource));

return SetIcon(hIcon);
}

HICON CSystemTray::GetIcon() const
{
HICON hIcon = NULL;
if (m_bEnabled)
hIcon = m_tnd.hIcon;

return hIcon;
}

//////////////////////////////////////////////////
// CSystemTray tooltip text manipulation

BOOL CSystemTray::SetTooltipText(LPCTSTR pszTip)
{
if (!m_bEnabled) return FALSE;

m_tnd.uFlags = NIF_TIP;
_tcscpy(m_tnd.szTip, pszTip);

return Shell_NotifyIcon(NIM_MODIFY, &m_tnd);
}

BOOL CSystemTray::SetTooltipText(UINT nID)
{
CString strText;
VERIFY(strText.LoadString(nID));

return SetTooltipText(strText);
}

CString CSystemTray::GetTooltipText() const
{
CString strText;
if (m_bEnabled)
strText = m_tnd.szTip;

return strText;
}

////////////////////////////////////////////////
// CSystemTray notification window stuff

BOOL CSystemTray::SetNotificationWnd(CWnd* pWnd)
{
if (!m_bEnabled) return FALSE;

//Make sure Notification window is valid
ASSERT(pWnd && ::IsWindow(pWnd->GetSafeHwnd()));

m_tnd.hWnd = pWnd->GetSafeHwnd();
m_tnd.uFlags = 0;

return Shell_NotifyIcon(NIM_MODIFY, &m_tnd);
}

CWnd* CSystemTray::GetNotificationWnd() const
{
return CWnd::FromHandle(m_tnd.hWnd);
}