reactos/dll/win32/shell32/systray.cpp

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/*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "precomp.h"
WINE_DEFAULT_DEBUG_CHANNEL(shell);
/* 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, DWORD nid_size, BOOL unicode)
{
HWND hwnd;
COPYDATASTRUCT data;
BOOL ret = FALSE;
int len = FIELD_OFFSET(TrayNotifyCDS_Dummy, nicon_data) + 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)
{
DWORD cbSize;
/* Validate the cbSize as Windows XP does */
if (pnid->cbSize != NOTIFYICONDATAA_V1_SIZE &&
pnid->cbSize != NOTIFYICONDATAA_V2_SIZE &&
pnid->cbSize != sizeof(NOTIFYICONDATAA))
{
WARN("Invalid cbSize (%d) - using only Win95 fields (size=%d)\n",
pnid->cbSize, NOTIFYICONDATAA_V1_SIZE);
cbSize = NOTIFYICONDATAA_V1_SIZE;
}
else
cbSize = pnid->cbSize;
return SHELL_NotifyIcon(dwMessage, pnid, pnid->hWnd, cbSize, FALSE);
}
/*************************************************************************
* Shell_NotifyIconW [SHELL32.298]
*/
BOOL WINAPI Shell_NotifyIconW(DWORD dwMessage, PNOTIFYICONDATAW pnid)
{
DWORD cbSize;
/* Validate the cbSize so that WM_COPYDATA doesn't crash the application */
if (pnid->cbSize != NOTIFYICONDATAW_V1_SIZE &&
pnid->cbSize != NOTIFYICONDATAW_V2_SIZE &&
pnid->cbSize != sizeof(NOTIFYICONDATAW))
{
WARN("Invalid cbSize (%d) - using only Win95 fields (size=%d)\n",
pnid->cbSize, NOTIFYICONDATAW_V1_SIZE);
cbSize = NOTIFYICONDATAA_V1_SIZE;
}
else
cbSize = pnid->cbSize;
return SHELL_NotifyIcon(dwMessage, pnid, pnid->hWnd, cbSize, TRUE);
}