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

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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_SIZE    data.cbSize = NOTIFYICONDATA_V1_SIZE;#else    data.cbSize = sizeof(data);#endifdata.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 something                break;            }        }        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