VC下添加和删除系统托盘图标,处理响应事件(Shell_NotifyIcon)_综合

分步骤如下:

1,定义用户消息

#define WM_TRAY_NOTIFY (WM_USER + 8118)

2,添加托盘图标

NOTIFYICONDATA data;
memset(&data, 0, sizeof(data));
// the basic functions need only V1
#ifdef NOTIFYICONDATA_V1_SIZEdata.cbSize = NOTIFYICONDATA_V1_SIZE;
#elsedata.cbSize = sizeof(data);
#endif
data.hWnd = hWnd;
data.uCallbackMessage = WM_TRAY_NOTIFY;
data.uID = IDI_MAIN_ICON;
data.hIcon = LoadIcon(g_hInstance, MAKEINTRESOURCE(IDI_MAIN_ICON) );
data.uFlags =  NIF_ICON | NIF_TIP | NIF_MESSAGE  ;
wstring name = notify_config::GetResourceString( IDS_TIP_NAME );
size_t tip_len = min(sizeof(data.szTip)-1, wcslen(name.c_str())*sizeof(wchar_t));
memcpy(data.szTip, name.c_str(), tip_len);
data.szTip[tip_len] = 0;
Shell_NotifyIcon(NIM_ADD, &data);

其中hWnd为窗体句柄,处理消息块则在此窗体的回调函数中捕捉消息.

3,消息处理

LRESULT CALLBACK MainWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam){switch (uMsg){case WM_TRAY_NOTIFY:{switch( lParam ){case WM_RBUTTONUP://do somethingbreak;}}break;}
...
}

4,删除图标

根据NOTIFYICONDATA的结构

typedef struct _NOTIFYICONDATA {DWORD cbSize;HWND  hWnd;UINT  uID;UINT  uFlags;UINT  uCallbackMessage;HICON hIcon;TCHAR szTip[64];DWORD dwState;DWORD dwStateMask;TCHAR szInfo[256];union {UINT uTimeout;UINT uVersion;};TCHAR szInfoTitle[64];DWORD dwInfoFlags;GUID  guidItem;HICON hBalloonIcon;
} NOTIFYICONDATA, *PNOTIFYICONDATA;

一个图标是有个别参数来标识的,即 hWnd+uID 或者 guidItem,在此就以上面的为例子,代码如下:

NOTIFYICONDATA data;
memset(&data, 0, sizeof(data));
data.hWnd = g_hMainWnd;
data.uID = IDI_MAIN_ICON;
Shell_NotifyIcon(NIM_DELETE, &data);

参考: http://msdn.microsoft.com/en-us/library/bb773352(VS.85).aspx