1 #ifndef __DESKCPLX__H
2 #define __DESKCPLX__H
3
4 #define DESK_EXT_CALLBACK CALLBACK
5
6 #define DESK_EXT_EXTINTERFACE TEXT("Desk.cpl extension interface")
7 #define DESK_EXT_PRUNINGMODE TEXT("Pruning Mode")
8 #define DESK_EXT_DISPLAYDEVICE TEXT("Display Device")
9 #define DESK_EXT_DISPLAYNAME TEXT("Display Name")
10 #define DESK_EXT_DISPLAYID TEXT("Display ID")
11 #define DESK_EXT_DISPLAYKEY TEXT("Display Key")
12 #define DESK_EXT_DISPLAYSTATEFLAGS TEXT("Display State Flags")
13 #define DESK_EXT_MONITORNAME TEXT("Monitor Name")
14 #define DESK_EXT_MONITORDEVICE TEXT("Monitor Device")
15
16 typedef PDEVMODEW (DESK_EXT_CALLBACK *PDESK_EXT_ENUMALLMODES)(PVOID Context, DWORD Index);
17 typedef PDEVMODEW (DESK_EXT_CALLBACK *PDESK_EXT_GETCURRENTMODE)(PVOID Context);
18 typedef BOOL (DESK_EXT_CALLBACK *PDESK_EXT_SETCURRENTMODE)(PVOID Context, DEVMODEW *pDevMode);
19 typedef VOID (DESK_EXT_CALLBACK *PDESK_EXT_GETPRUNINGMODE)(PVOID Context, PBOOL pbModesPruned, PBOOL pbKeyIsReadOnly, PBOOL pbPruningOn);
20 typedef VOID (DESK_EXT_CALLBACK *PDESK_EXT_SETPRUNINGMODE)(PVOID Context, BOOL PruningOn);
21
22 typedef struct _DESK_EXT_INTERFACE
23 {
24 /* NOTE: This structure is binary compatible to XP. The windows shell
25 extensions rely on this structure to be properly filled! */
26 DWORD cbSize;
27
28 PVOID Context; /* This value is passed on to the callback routines */
29
30 /* Callback routines called by the shell extensions */
31 PDESK_EXT_ENUMALLMODES EnumAllModes;
32 PDESK_EXT_SETCURRENTMODE SetCurrentMode;
33 PDESK_EXT_GETCURRENTMODE GetCurrentMode;
34 PDESK_EXT_SETPRUNINGMODE SetPruningMode;
35 PDESK_EXT_GETPRUNINGMODE GetPruningMode;
36
37 /* HardwareInformation.* values provided in the device registry key */
38 WCHAR MemorySize[128];
39 WCHAR ChipType[128];
40 WCHAR DacType[128];
41 WCHAR AdapterString[128];
42 WCHAR BiosString[128];
43 } DESK_EXT_INTERFACE, *PDESK_EXT_INTERFACE;
44
45 LONG WINAPI DisplaySaveSettings(PVOID pContext, HWND hwndPropSheet);
46
47 static __inline PDESK_EXT_INTERFACE
QueryDeskCplExtInterface(IDataObject * pdo)48 QueryDeskCplExtInterface(IDataObject *pdo)
49 {
50 PDESK_EXT_INTERFACE pRecvBuffer, pExtIface = NULL;
51 FORMATETC fetc;
52 STGMEDIUM medium;
53
54 fetc.cfFormat = (CLIPFORMAT)RegisterClipboardFormat(DESK_EXT_EXTINTERFACE);
55 fetc.ptd = NULL;
56 fetc.dwAspect = DVASPECT_CONTENT;
57 fetc.lindex = -1;
58 fetc.tymed = TYMED_HGLOBAL;
59
60 if (SUCCEEDED(IDataObject_GetData(pdo, &fetc, &medium)) && medium.hGlobal != NULL)
61 {
62 /* We always receive the string in unicode! */
63 pRecvBuffer = (PDESK_EXT_INTERFACE)GlobalLock(medium.hGlobal);
64
65 if (pRecvBuffer->cbSize == sizeof(*pRecvBuffer))
66 {
67 pExtIface = LocalAlloc(LMEM_FIXED, sizeof(*pExtIface));
68 if (pExtIface != NULL)
69 {
70 CopyMemory(pExtIface,
71 pRecvBuffer,
72 sizeof(*pRecvBuffer));
73 }
74 }
75
76 GlobalUnlock(medium.hGlobal);
77 ReleaseStgMedium(&medium);
78 }
79
80 return pExtIface;
81 }
82
83 static __inline LPTSTR
QueryDeskCplString(IDataObject * pdo,UINT cfFormat)84 QueryDeskCplString(IDataObject *pdo, UINT cfFormat)
85 {
86 FORMATETC fetc;
87 STGMEDIUM medium;
88 SIZE_T BufLen;
89 LPWSTR lpRecvBuffer;
90 LPTSTR lpStr = NULL;
91
92 fetc.cfFormat = (CLIPFORMAT)cfFormat;
93 fetc.ptd = NULL;
94 fetc.dwAspect = DVASPECT_CONTENT;
95 fetc.lindex = -1;
96 fetc.tymed = TYMED_HGLOBAL;
97
98 if (SUCCEEDED(IDataObject_GetData(pdo, &fetc, &medium)) && medium.hGlobal != NULL)
99 {
100 /* We always receive the string in unicode! */
101 lpRecvBuffer = (LPWSTR)GlobalLock(medium.hGlobal);
102
103 BufLen = wcslen(lpRecvBuffer) + 1;
104 lpStr = LocalAlloc(LMEM_FIXED, BufLen * sizeof(TCHAR));
105 if (lpStr != NULL)
106 {
107 #ifdef UNICODE
108 wcscpy(lpStr, lpRecvBuffer);
109 #else
110 WideCharToMultiByte(CP_ACP, 0, lpRecvBuffer, -1, lpStr, BufLen, NULL, NULL);
111 #endif
112 }
113
114 GlobalUnlock(medium.hGlobal);
115 ReleaseStgMedium(&medium);
116 }
117
118 return lpStr;
119 }
120
121 static __inline LONG
DeskCplExtDisplaySaveSettings(PDESK_EXT_INTERFACE DeskExtInterface,HWND hwndDlg)122 DeskCplExtDisplaySaveSettings(PDESK_EXT_INTERFACE DeskExtInterface,
123 HWND hwndDlg)
124 {
125 typedef LONG (WINAPI *PDISPLAYSAVESETTINGS)(PVOID, HWND);
126 HMODULE hModDeskCpl;
127 PDISPLAYSAVESETTINGS pDisplaySaveSettings;
128 LONG lRet = DISP_CHANGE_BADPARAM;
129
130 /* We could use GetModuleHandle() instead, but then this routine
131 wouldn't work if some other application hosts the shell extension */
132 hModDeskCpl = LoadLibrary(TEXT("desk.cpl"));
133 if (hModDeskCpl != NULL)
134 {
135 pDisplaySaveSettings = (PDISPLAYSAVESETTINGS)GetProcAddress(hModDeskCpl,
136 "DisplaySaveSettings");
137 if (pDisplaySaveSettings != NULL)
138 {
139 lRet = pDisplaySaveSettings(DeskExtInterface->Context,
140 hwndDlg);
141 }
142
143 FreeLibrary(hModDeskCpl);
144 }
145
146 return lRet;
147 }
148
149 #endif /* __DESKCPLX__H */
150