1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 #ifdef _MSC_VER
25 #pragma warning(push, 1) /* disable warnings within system headers */
26 #endif
27 #define WIN32_LEAN_AND_MEAN
28 #include <windows.h>
29 #include <msiquery.h>
30 #ifdef _MSC_VER
31 #pragma warning(pop)
32 #endif
33
34 #include <stdlib.h>
35
RebuildShellIconCache(MSIHANDLE)36 extern "C" UINT __stdcall RebuildShellIconCache(MSIHANDLE)
37 {
38 // Rebuild icon cache on windows OS prior XP
39
40 OSVERSIONINFO osverinfo;
41
42 osverinfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
43
44 if (
45 GetVersionEx( &osverinfo ) &&
46 VER_PLATFORM_WIN32_NT == osverinfo.dwPlatformId &&
47 (
48 5 < osverinfo.dwMajorVersion ||
49 5 == osverinfo.dwMajorVersion && 0 < osverinfo.dwMinorVersion
50 )
51 )
52 {
53 return ERROR_SUCCESS;
54 }
55
56 HKEY hKey;
57 DWORD dwDispostion;
58 LONG lError = RegCreateKeyEx( HKEY_CURRENT_USER, TEXT("Control Panel\\Desktop\\WindowMetrics"), 0, NULL, REG_OPTION_VOLATILE, KEY_SET_VALUE | KEY_QUERY_VALUE, NULL, &hKey, &dwDispostion );
59
60 if ( ERROR_SUCCESS == lError )
61 {
62 TCHAR szValue[256];
63 TCHAR szTempValue[256];
64 DWORD cbValue = sizeof(szValue);
65 DWORD dwType;
66 int iSize = 0;
67
68 lError = RegQueryValueEx( hKey, TEXT("Shell Icon Size"), 0, &dwType, (LPBYTE)szValue, &cbValue );
69
70 if ( ERROR_SUCCESS == lError )
71 iSize = atoi( szValue );
72
73 if ( !iSize )
74 {
75 iSize = GetSystemMetrics( SM_CXICON );
76 itoa( iSize, szValue, 10 );
77 cbValue = strlen( szValue ) + 1;
78 dwType = REG_SZ;
79 }
80
81 itoa( iSize + 1, szTempValue, 10 );
82 lError = RegSetValueEx( hKey, TEXT("Shell Icon Size"), 0, dwType, (LPBYTE)szTempValue, strlen( szTempValue ) + 1 );
83
84 LRESULT lResult = SendMessageTimeout(
85 HWND_BROADCAST,
86 WM_SETTINGCHANGE,
87 SPI_SETNONCLIENTMETRICS,
88 (LPARAM)TEXT("WindowMetrics"),
89 SMTO_NORMAL|SMTO_ABORTIFHUNG,
90 0, NULL);
91
92 lError = RegSetValueEx( hKey, TEXT("Shell Icon Size"), 0, dwType, (LPBYTE)szValue, cbValue );
93
94 lResult = SendMessageTimeout(
95 HWND_BROADCAST,
96 WM_SETTINGCHANGE,
97 SPI_SETNONCLIENTMETRICS,
98 (LPARAM)TEXT("WindowMetrics"),
99 SMTO_NORMAL|SMTO_ABORTIFHUNG,
100 0, NULL);
101
102 lError = RegCloseKey( hKey );
103 }
104
105 return ERROR_SUCCESS;
106 }
107