1 /*
2 * SHAppBarMessage implementation
3 *
4 * Copyright 2008 Vincent Povirk for CodeWeavers
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "config.h"
22
23 #include <stdlib.h>
24 #include <string.h>
25 #include <stdarg.h>
26 #include <stdio.h>
27
28 #include "windef.h"
29 #include "winbase.h"
30 #include "winerror.h"
31 #include "shellapi.h"
32 #include "winuser.h"
33
34 #include "wine/debug.h"
35 #include "wine/unicode.h"
36
37 WINE_DEFAULT_DEBUG_CHANNEL(appbar);
38
39 struct appbar_cmd
40 {
41 HANDLE return_map;
42 DWORD return_process;
43 APPBARDATA abd;
44 };
45
46 struct appbar_response
47 {
48 UINT_PTR result;
49 APPBARDATA abd;
50 };
51
52 /*************************************************************************
53 * SHAppBarMessage [SHELL32.@]
54 */
55 UINT_PTR WINAPI SHAppBarMessage(DWORD msg, PAPPBARDATA data)
56 {
57 struct appbar_cmd command;
58 struct appbar_response* response;
59 HANDLE return_map;
60 LPVOID return_view;
61 HWND appbarmsg_window;
62 COPYDATASTRUCT cds;
63 DWORD_PTR msg_result;
64 static const WCHAR classname[] = {'W','i','n','e','A','p','p','B','a','r',0};
65
66 UINT_PTR ret = 0;
67
68 TRACE("msg=%d, data={cb=%d, hwnd=%p, callback=%x, edge=%d, rc=%s, lparam=%lx}\n",
69 msg, data->cbSize, data->hWnd, data->uCallbackMessage, data->uEdge,
70 wine_dbgstr_rect(&data->rc), data->lParam);
71
72 if (data->cbSize < sizeof(APPBARDATA))
73 {
74 WARN("data at %p is too small\n", data);
75 return FALSE;
76 }
77
78 command.abd = *data;
79
80 return_map = CreateFileMappingW(INVALID_HANDLE_VALUE, 0, PAGE_READWRITE, 0, sizeof(struct appbar_response), NULL);
81 if (return_map == NULL)
82 {
83 ERR("couldn't create file mapping\n");
84 return 0;
85 }
86 command.return_map = return_map;
87
88 command.return_process = GetCurrentProcessId();
89
90 appbarmsg_window = FindWindowW(classname, NULL);
91 if (appbarmsg_window == NULL)
92 {
93 ERR("couldn't find appbar window\n");
94 CloseHandle(return_map);
95 return 0;
96 }
97
98 cds.dwData = msg;
99 cds.cbData = sizeof(command);
100 cds.lpData = &command;
101
102 SendMessageTimeoutW(appbarmsg_window, WM_COPYDATA, (WPARAM)data->hWnd, (LPARAM)&cds, SMTO_BLOCK, INFINITE, &msg_result);
103
104 return_view = MapViewOfFile(return_map, FILE_MAP_READ, 0, 0, sizeof(struct appbar_response));
105 if (return_view == NULL)
106 {
107 ERR("MapViewOfFile failed\n");
108 CloseHandle(return_map);
109 return 0;
110 }
111
112 response = return_view;
113
114 ret = response->result;
115 *data = response->abd;
116
117 UnmapViewOfFile(return_view);
118
119 CloseHandle(return_map);
120
121 return ret;
122 }
123
This page was automatically generated by the
LXR engine.
Visit the LXR main site for more
information.