Windows托盘图标

用c语言做windows程序托盘图标。直接上代码。

 

需要预先定义一个图标通知消息

#define WM_ICON_NOTIFICATION WM_USER + 100

 

tray.h

#ifndef __tray_h__ #define __tray_h__ #include <Windows.h> typedef struct _tray_info { BOOL _Enabled; NOTIFYICONDATA _Data; } TRAYINFO, *LPTRAYINFO; BOOL TrayCreate ( HWND hWnd, UINT uMsg, LPCTSTR lpszTip, HICON hIcon, UINT uId ); void TrayDestroy (); int Tray_OnNotification ( WPARAM wParam, LPARAM lParam ); #endif // __tray_h__

 

tray.c

#include "tray.h" extern HINSTANCE g_hInstance; TRAYINFO g_TrayInfo = { 0 }; // 创建托盘图标 BOOL TrayCreate( HWND hWnd, UINT uMsg, LPCTSTR lpszTip, HICON hIcon, UINT uId ) { if( NULL == hWnd || !IsWindow(hWnd) || g_TrayInfo._Enabled ) return FALSE; g_TrayInfo._Data.cbSize = sizeof( NOTIFYICONDATA ); g_TrayInfo._Data.hWnd = hWnd; g_TrayInfo._Data.uCallbackMessage = uMsg; g_TrayInfo._Data.uID = uId; g_TrayInfo._Data.hIcon = hIcon; g_TrayInfo._Data.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP; _tcscpy( g_TrayInfo._Data.szTip, lpszTip ); g_TrayInfo._Enabled = Shell_NotifyIcon( NIM_ADD, &g_TrayInfo._Data ); return g_TrayInfo._Enabled; } // 删除托盘图标 void TrayDestroy() { if( !g_TrayInfo._Enabled ) return; Shell_NotifyIcon( NIM_DELETE, &g_TrayInfo._Data ); memset( &g_TrayInfo, 0, sizeof(TRAYINFO) ); } // 托盘消息处理函数 int Tray_OnNotification( WPARAM wParam, LPARAM lParam ) { if( wParam != g_TrayInfo._Data.uID ) return 0; if( WM_RBUTTONUP == LOWORD(lParam) ) { // 处理右键消息 ... } else if( WM_LBUTTONDBLCLK == LOWORD(lParam) ) { // 处理双击消息 ... } return 1; }

 

使用方法：

LRESULT CALLBACK MainDlgProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam ) { switch( uMsg ) { case WM_INITDIALOG: MainDlg_OnInitDialog( hWnd, wParam, lParam ); break; case WM_COMMAND: switch( LOWORD(wParam) ) { // 跟托盘关联的菜单项的处理 case ID_TRAYMENU_SHOW_WINDOW: ShowWindow( hWnd, SW_SHOW ); break; case ID_TRAYMENU_EXIT: MainDlg_OnClose( hWnd ); break; } break; case WM_ICON_NOTIFICATION: Tray_OnNotification( wParam, lParam ); break; case WM_CLOSE: ShowWindow( hWnd, SW_HIDE ); break; } return FALSE; } BOOL MainDlg_OnInitDialog( HWND hWnd, WPARAM wParam, LPARAM lParam ) { RECT rc = { 0 }; HICON hIcon = NULL; hIcon = LoadIcon( g_hInstance, MAKEINTRESOURCE(IDI_TRAY) ); SendMessage( hWnd, WM_SETICON, 0, (LPARAM)hIcon ); // IDR_MENU_TRAY 是跟托盘图标关联的一个菜单 TrayCreate( hWnd, WM_ICON_NOTIFICATION, _T("IPMessage"), hIcon, IDR_MENU_TRAY ); return TRUE; } void MainDlg_OnClose( HWND hWnd ) { TrayDestroy(); EndDialog( hWnd, 0 ); }

 

 

如果需要在启动时就最小化到系统托盘，可以在 OnInitialize 函数中增加如下代码：
WINDOWPLACEMENT wp = { 0 }; wp.length = sizeof(WINDOWPLACEMENT); wp.flags = WPF_RESTORETOMAXIMIZED; wp.showCmd = SW_HIDE; SetWindowPlacement( hWnd, &wp );

 

如果还需要隐藏窗口在任务栏上的显示，还需要设置一下窗口的属性：

DWORD dwStyleEx = 0; dwStyleEx = GetWindowLong( hWnd, GWL_EXSTYLE ); dwStyleEx |= WS_EX_TOOLWINDOW | ~WS_EX_APPWINDOW; SetWindowLong( hWnd, GWL_EXSTYLE, dwStyleEx );