1/*
2 * Copyright (C) 2011 Tobias Häußler
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24#ifdef HAVE_XWIN_CONFIG_H
25#include <xwin-config.h>
26#endif
27
28#include <X11/Xlib.h>
29#include <X11/Xproto.h>
30#include <X11/Xwindows.h>
31#include <pthread.h>
32#include "winwindow.h"
33#include "os.h"
34#include "winmsg.h"
35
36#include <shlwapi.h>
37
38#define INITGUID
39#include "initguid.h"
40#include "propertystore.h"
41#undef INITGUID
42
43static HMODULE g_hmodShell32Dll = NULL;
44static SHGETPROPERTYSTOREFORWINDOWPROC g_pSHGetPropertyStoreForWindow = NULL;
45
46void
47winPropertyStoreInit(void)
48{
49    /*
50       Load library and get function pointer to SHGetPropertyStoreForWindow()
51
52       SHGetPropertyStoreForWindow is only supported since Windows 7. On previous
53       versions the pointer will be NULL and taskbar grouping is not supported.
54       winSetAppUserModelID() will do nothing in this case.
55     */
56    g_hmodShell32Dll = LoadLibrary("shell32.dll");
57    if (g_hmodShell32Dll == NULL) {
58        ErrorF("winPropertyStoreInit - Could not load shell32.dll\n");
59        return;
60    }
61
62    g_pSHGetPropertyStoreForWindow =
63        (SHGETPROPERTYSTOREFORWINDOWPROC) GetProcAddress(g_hmodShell32Dll,
64                                                         "SHGetPropertyStoreForWindow");
65    if (g_pSHGetPropertyStoreForWindow == NULL) {
66        ErrorF
67            ("winPropertyStoreInit - Could not get SHGetPropertyStoreForWindow address\n");
68        return;
69    }
70}
71
72void
73winPropertyStoreDestroy(void)
74{
75    if (g_hmodShell32Dll != NULL) {
76        FreeLibrary(g_hmodShell32Dll);
77        g_hmodShell32Dll = NULL;
78        g_pSHGetPropertyStoreForWindow = NULL;
79    }
80}
81
82void
83winSetAppUserModelID(HWND hWnd, const char *AppID)
84{
85    PROPVARIANT pv;
86    IPropertyStore *pps = NULL;
87    HRESULT hr;
88
89    if (g_pSHGetPropertyStoreForWindow == NULL) {
90        return;
91    }
92
93    winDebug("winSetAppUserMOdelID - hwnd 0x%p appid '%s'\n", hWnd, AppID);
94
95    hr = g_pSHGetPropertyStoreForWindow(hWnd, &IID_IPropertyStore,
96                                        (void **) &pps);
97    if (SUCCEEDED(hr) && pps) {
98        memset(&pv, 0, sizeof(PROPVARIANT));
99        if (AppID) {
100            pv.vt = VT_LPWSTR;
101            hr = SHStrDupA(AppID, &pv.pwszVal);
102        }
103
104        if (SUCCEEDED(hr)) {
105            pps->lpVtbl->SetValue(pps, &PKEY_AppUserModel_ID, &pv);
106            PropVariantClear(&pv);
107        }
108        pps->lpVtbl->Release(pps);
109    }
110}
111