xref: /reactos/base/applications/control/control.c (revision b5218987)
1 /*
2  * PROJECT:     ReactOS System Control Panel
3  * LICENSE:     GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
4  * PURPOSE:     ReactOS System Control Panel
5  * COPYRIGHT:   Copyright 2004 Gero Kuehn (reactos.filter@gkware.com)
6  *              Copyright 2008 Colin Finck (colin@reactos.org)
7  *              Copyright 2014 Herm�s B�lusca-Ma�to (hermes.belusca-maito@reactos.org)
8  */
9 
10 #include <stdio.h>
11 
12 #define WIN32_NO_STATUS
13 
14 #include <windef.h>
15 #include <winbase.h>
16 #include <winuser.h>
17 #include <winreg.h>
18 #include <shellapi.h>
19 #include <strsafe.h>
20 
21 #include "resource.h"
22 
23 #define MAX_VALUE_NAME 16383
24 
25 /*
26  * Macro for calling "rundll32.exe"
27  * According to MSDN, ShellExecute returns a value greater than 32
28  * if the operation was successful.
29  */
30 #define RUNDLL(param)   \
31     ((INT_PTR)ShellExecuteW(NULL, L"open", L"rundll32.exe", (param), NULL, SW_SHOWDEFAULT) > 32)
32 
33 VOID
34 WINAPI
35 Control_RunDLLW(HWND hWnd, HINSTANCE hInst, LPCWSTR cmd, DWORD nCmdShow);
36 
37 static INT
38 OpenShellFolder(LPWSTR lpFolderCLSID)
39 {
40     WCHAR szParameters[MAX_PATH];
41 
42     /*
43      * Open a shell folder using "explorer.exe". The passed CLSIDs
44      * are all subfolders of the "Control Panel" shell folder.
45      */
46     StringCbCopyW(szParameters, sizeof(szParameters), L"/n,::{20D04FE0-3AEA-1069-A2D8-08002B30309D}\\::{21EC2020-3AEA-1069-A2DD-08002B30309D}");
47     StringCbCatW(szParameters, sizeof(szParameters), lpFolderCLSID);
48 
49     return (INT_PTR)ShellExecuteW(NULL,
50                                   L"open",
51                                   L"explorer.exe",
52                                   szParameters,
53                                   NULL,
54                                   SW_SHOWDEFAULT) > 32;
55 }
56 
57 static INT
58 RunControlPanel(LPCWSTR lpCmd)
59 {
60     WCHAR szParameters[MAX_PATH];
61     StringCchCopyW(szParameters, ARRAYSIZE(szParameters), L"shell32.dll,Control_RunDLL ");
62     if (FAILED(StringCchCatW(szParameters, ARRAYSIZE(szParameters), lpCmd)))
63         return 0;
64 
65     return RUNDLL(szParameters);
66 }
67 
68 INT
69 WINAPI
70 wWinMain(HINSTANCE hInstance,
71          HINSTANCE hPrevInstance,
72          LPWSTR lpCmdLine,
73          INT nCmdShow)
74 {
75     HKEY hKey;
76 
77     /* Show the control panel window if no argument or "panel" was passed */
78     if (*lpCmdLine == 0 || !_wcsicmp(lpCmdLine, L"panel"))
79         return OpenShellFolder(L"");
80 
81     /* Check one of the built-in control panel handlers */
82     if (!_wcsicmp(lpCmdLine, L"admintools"))           return OpenShellFolder(L"\\::{D20EA4E1-3957-11d2-A40B-0C5020524153}");
83     else if (!_wcsicmp(lpCmdLine, L"color"))           return RunControlPanel(L"desk.cpl,,2");
84     else if (!_wcsicmp(lpCmdLine, L"date/time"))       return RunControlPanel(L"timedate.cpl");
85     else if (!_wcsicmp(lpCmdLine, L"desktop"))         return RunControlPanel(L"desk.cpl");
86     else if (!_wcsicmp(lpCmdLine, L"folders"))         return RUNDLL(L"shell32.dll,Options_RunDLL");
87     else if (!_wcsicmp(lpCmdLine, L"fonts"))           return OpenShellFolder(L"\\::{D20EA4E1-3957-11d2-A40B-0C5020524152}");
88     else if (!_wcsicmp(lpCmdLine, L"infrared"))        return RunControlPanel(L"irprops.cpl");
89     else if (!_wcsicmp(lpCmdLine, L"international"))   return RunControlPanel(L"intl.cpl");
90     else if (!_wcsicmp(lpCmdLine, L"keyboard"))        return RunControlPanel(L"main.cpl @1");
91     else if (!_wcsicmp(lpCmdLine, L"mouse"))           return RunControlPanel(L"main.cpl @0");
92     else if (!_wcsicmp(lpCmdLine, L"netconnections"))  return OpenShellFolder(L"\\::{7007ACC7-3202-11D1-AAD2-00805FC1270E}");
93     else if (!_wcsicmp(lpCmdLine, L"netware"))         return RunControlPanel(L"nwc.cpl");
94     else if (!_wcsicmp(lpCmdLine, L"ports"))           return RunControlPanel(L"sysdm.cpl,,1");
95     else if (!_wcsicmp(lpCmdLine, L"printers"))        return OpenShellFolder(L"\\::{2227A280-3AEA-1069-A2DE-08002B30309D}");
96     else if (!_wcsicmp(lpCmdLine, L"scannercamera"))   return OpenShellFolder(L"\\::{E211B736-43FD-11D1-9EFB-0000F8757FCD}");
97     else if (!_wcsicmp(lpCmdLine, L"schedtasks"))      return OpenShellFolder(L"\\::{D6277990-4C6A-11CF-8D87-00AA0060F5BF}");
98     else if (!_wcsicmp(lpCmdLine, L"telephony"))       return RunControlPanel(L"telephon.cpl");
99     else if (!_wcsicmp(lpCmdLine, L"userpasswords"))   return RunControlPanel(L"nusrmgr.cpl");       /* Graphical User Account Manager */
100     else if (!_wcsicmp(lpCmdLine, L"userpasswords2"))  return RUNDLL(L"netplwiz.dll,UsersRunDll");   /* Dialog based advanced User Account Manager */
101 
102     /* It is none of them, so look for a handler in the registry */
103     if (RegOpenKeyExW(HKEY_LOCAL_MACHINE,
104                       L"Software\\Microsoft\\Windows\\CurrentVersion\\Control Panel\\Cpls",
105                       0,
106                       KEY_QUERY_VALUE,
107                       &hKey) == ERROR_SUCCESS)
108     {
109         DWORD dwIndex;
110 
111         for (dwIndex = 0; ; ++dwIndex)
112         {
113             DWORD dwDataSize;
114             DWORD dwValueSize = MAX_VALUE_NAME;
115             WCHAR szValueName[MAX_VALUE_NAME];
116 
117             /* Get the value name and data size */
118             if (RegEnumValueW(hKey,
119                               dwIndex,
120                               szValueName,
121                               &dwValueSize,
122                               0,
123                               NULL,
124                               NULL,
125                               &dwDataSize) != ERROR_SUCCESS)
126             {
127                 break;
128             }
129 
130             /* Check if the parameter is the value name */
131             if (!_wcsicmp(lpCmdLine, szValueName))
132             {
133                 /*
134                  * Allocate memory for the data plus two more characters,
135                  * so we can quote the file name if required.
136                  */
137                 LPWSTR pszData;
138                 pszData = HeapAlloc(GetProcessHeap(),
139                                     0,
140                                     dwDataSize + 2 * sizeof(WCHAR));
141                 ++pszData;
142 
143                 /*
144                  * This value is the one we are looking for, so get the data.
145                  * It is the path to a .cpl file.
146                  */
147                 if (RegQueryValueExW(hKey,
148                                      szValueName,
149                                      0,
150                                      NULL,
151                                      (LPBYTE)pszData,
152                                      &dwDataSize) == ERROR_SUCCESS)
153                 {
154                     INT nReturnValue;
155 
156                     /* Quote the file name if required */
157                     if (*pszData != L'\"')
158                     {
159                         *(--pszData) = L'\"';
160                         pszData[dwDataSize / sizeof(WCHAR)] = L'\"';
161                         pszData[(dwDataSize / sizeof(WCHAR)) + 1] = 0;
162                     }
163 
164                     nReturnValue = RunControlPanel(pszData);
165                     HeapFree(GetProcessHeap(), 0, pszData);
166                     RegCloseKey(hKey);
167 
168                     return nReturnValue;
169                 }
170 
171                 HeapFree(GetProcessHeap(), 0, pszData);
172             }
173         }
174 
175         RegCloseKey(hKey);
176     }
177 
178     /*
179      * It's none of the known parameters, so interpret the parameter
180      * as the file name of a control panel applet.
181      */
182     return RunControlPanel(lpCmdLine);
183 }
184