ros-systray.c

winNT技术操作系统,国外开放的原代码和LIUX一样

/*
 * Copyright 2004 Martin Fuchs
 *
 * Pass on icon notification messages to the systray implementation
 * in the currently running shell.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <stdarg.h>
#include <malloc.h>

#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "shellapi.h"


 /* copy data structure for tray notifications */
typedef struct TrayNotifyCDS_Dummy {
	DWORD	cookie;
	DWORD	notify_code;
	DWORD	nicon_data[1];	// placeholder for NOTIFYICONDATA structure
} TrayNotifyCDS_Dummy;

 /* The only difference between Shell_NotifyIconA and Shell_NotifyIconW is the call to SendMessageA/W. */
static BOOL SHELL_NotifyIcon(DWORD dwMessage, void* pnid, HWND nid_hwnd, int nid_size, BOOL unicode)
{
	HWND hwnd;
	COPYDATASTRUCT data;

	BOOL ret = FALSE;
	int len = sizeof(TrayNotifyCDS_Dummy)-sizeof(DWORD)+nid_size;

	TrayNotifyCDS_Dummy* pnotify_data = (TrayNotifyCDS_Dummy*) alloca(len);

	pnotify_data->cookie = 1;
	pnotify_data->notify_code = dwMessage;
	memcpy(&pnotify_data->nicon_data, pnid, nid_size);

	data.dwData = 1;
	data.cbData = len;
	data.lpData = pnotify_data;

	for(hwnd=0; (hwnd=FindWindowExW(0, hwnd, L"Shell_TrayWnd", NULL)); )
		if ((unicode?SendMessageW:SendMessageA)(hwnd, WM_COPYDATA, (WPARAM)nid_hwnd, (LPARAM)&data))
			ret = TRUE;

	return ret;
}


/*************************************************************************
 * Shell_NotifyIcon			[SHELL32.296]
 * Shell_NotifyIconA			[SHELL32.297]
 */
BOOL WINAPI Shell_NotifyIconA(DWORD dwMessage, PNOTIFYICONDATAA pnid)
{
	return SHELL_NotifyIcon(dwMessage, pnid, pnid->hWnd, pnid->cbSize, FALSE);
}

/*************************************************************************
 * Shell_NotifyIconW			[SHELL32.298]
 */
BOOL WINAPI Shell_NotifyIconW(DWORD dwMessage, PNOTIFYICONDATAW pnid)
{
	return SHELL_NotifyIcon(dwMessage, pnid, pnid->hWnd, pnid->cbSize, TRUE);
}