Source code of Windows XP (NT5)
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//*****************************************************************************
//
// Cursor and Icon compatibility Support -
//
// Support for apps - which do a GlobalLock on Cursors and Icons to
// create headaches for us.
//
// A compatibility issue.
//
//
// 21-Apr-92 NanduriR Created.
//
//*****************************************************************************
#define HANDLE_TYPE_UNKNOWN 0x01
#define HANDLE_TYPE_ICON 0x02
#define HANDLE_TYPE_CURSOR 0x04
#define HANDLE_TYPE_WOWGLOBAL 0x08
#define HANDLE_16BIT 0x01
#define HANDLE_32BIT 0x02
#define HANDLE_16BITRES 0x04
#define CIALIAS_TASKISGONE 0x01
#define CIALIAS_HMOD 0x02
#define CIALIAS_HTASK 0x04
typedef struct _CURSORICONALIAS {
struct _CURSORICONALIAS FAR *lpNext;
BYTE fInUse;
BYTE flType;
HAND16 h16;
HAND32 h32;
HAND16 hInst16;
HAND16 hMod16;
HTASK16 hTask16;
WORD hRes16; // 16bit resource handle
WORD cbData;
UINT cLock;
VPVOID vpData;
LPBYTE pbDataOld;
LPBYTE pbDataNew;
LPBYTE lpszName; // name of 16bit resource
} CURSORICONALIAS, FAR *LPCURSORICONALIAS;
#define PROBABLYCURSOR(BitsPixel, Planes) ((((BitsPixel) == 1) && \
((Planes) == 1)) || \
(BitsPixel) == 0 || (Planes) == 0)
#define BOGUSHANDLE(h) (~(h) & 0x4)
extern UINT cPendingCursorIconUpdates;
HANDLE W32CreateCursorIcon32(LPCURSORICONALIAS lpCIAlias);
HAND16 W32Create16BitCursorIcon(HAND16 hInst16, INT xHotSpot, INT yHotSpot,
INT nWidth, INT nHeight, INT nPlanes, INT nBitsPixel,
LPBYTE lpBitsAND, LPBYTE lpBitsXOR, INT nBytesAND, INT nBytesXOR);
HANDLE GetCursorIconAlias32(HAND16 h16, UINT flType);
HAND16 GetCursorIconAlias16(HAND32 h32, UINT flType);
LPCURSORICONALIAS AllocCursorIconAlias();
LPCURSORICONALIAS FindCursorIconAlias(ULONG hCI, UINT flHandleSize);
BOOL DeleteCursorIconAlias(ULONG hCI, UINT flHandleSize);
BOOL FreeCursorIconAlias(HAND16 hand16, ULONG ulFLags);
HAND16 SetupCursorIconAlias(HAND16 hInst16, HAND32 h32, HAND16 h16, UINT flType,
LPBYTE lpResName, WORD hRes16);
HAND16 SetupResCursorIconAlias(HAND16 hInst16, HAND32 h32, LPBYTE lpResName, WORD hRes16, UINT flType);
ULONG SetCursorIconFlag(HAND16 h16, BOOL fSet);
BOOL ReplaceCursorIcon(LPCURSORICONALIAS lpCIAliasIn);
BOOL FASTCALL WK32WowCursorIconOp(PVDMFRAME pFrame);
VOID UpdateCursorIcon(VOID);
HAND16 W32Create16BitCursorIconFrom32BitHandle(HANDLE h32, HAND16 hMod16,
PUINT cbData);
BOOL InitStdCursorIconAlias(VOID);
#if defined(FE_SB)
BOOL FindCursorIconAliasInUse(ULONG hCI);
#endif
#define HCURSOR32(hobj16) GetCursorIconAlias32((HAND16)(hobj16), HANDLE_TYPE_CURSOR)
#define GETHCURSOR16(hobj32) GetCursorIconAlias16((HAND32)(hobj32), HANDLE_TYPE_CURSOR)
#define FREEHCURSOR16(hobj16) DeleteCursorIconAlias((ULONG)(hobj16), HANDLE_16BIT)
#define HICON32(hobj16) GetCursorIconAlias32((HAND16)(hobj16), HANDLE_TYPE_ICON)
#define GETHICON16(hobj32) GetCursorIconAlias16((HAND32)(hobj32), HANDLE_TYPE_ICON)
#define FREEHICON16(hobj16) DeleteCursorIconAlias((ULONG)(hobj16), HANDLE_16BIT)
#define HICON32_REGCLASS(hobj16) GetClassCursorIconAlias32((HAND16)(hobj16))
HANDLE GetClassCursorIconAlias32(HAND16 h16);
VOID InvalidateCursorIconAlias(LPCURSORICONALIAS lpT);
//
// In win32 USER
//
HANDLE WINAPI WOWLoadCursorIcon(HANDLE hInstance, LPCSTR lpIconName,
LPTSTR rt, LPHANDLE lphRes16);
HAND16 W32CheckIfAlreadyLoaded(VPVOID pData, WORD ResType);