2 * ReactOS W32 Subsystem
3 * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 * We handle two types of cursors/icons:
23 * Loaded without LR_SHARED flag
24 * Private to a process
25 * Can be deleted by calling NtDestroyCursorIcon()
26 * CurIcon->hModule, CurIcon->hRsrc and CurIcon->hGroupRsrc set to NULL
28 * Loaded with LR_SHARED flag
29 * Possibly shared by multiple processes
30 * Immune to NtDestroyCursorIcon()
31 * CurIcon->hModule, CurIcon->hRsrc and CurIcon->hGroupRsrc are valid
32 * There's a M:N relationship between processes and (shared) cursor/icons.
33 * A process can have multiple cursor/icons and a cursor/icon can be used
34 * by multiple processes. To keep track of this we keep a list of all
35 * cursor/icons (CurIconList) and per cursor/icon we keep a list of
36 * CURICON_PROCESS structs starting at CurIcon->ProcessList.
44 static PAGED_LOOKASIDE_LIST gProcessLookasideList
;
45 static LIST_ENTRY gCurIconList
;
47 SYSTEM_CURSORINFO gSysCursorInfo
;
52 ExInitializePagedLookasideList(&gProcessLookasideList
,
56 sizeof(CURICON_PROCESS
),
59 InitializeListHead(&gCurIconList
);
61 gSysCursorInfo
.Enabled
= FALSE
;
62 gSysCursorInfo
.ButtonsDown
= 0;
63 gSysCursorInfo
.CursorClipInfo
.IsClipped
= FALSE
;
64 gSysCursorInfo
.LastBtnDown
= 0;
65 gSysCursorInfo
.CurrentCursorObject
= NULL
;
66 gSysCursorInfo
.ShowingCursor
= 0;
67 gSysCursorInfo
.ClickLockActive
= FALSE
;
68 gSysCursorInfo
.ClickLockTime
= 0;
76 return &gSysCursorInfo
;
79 /* This function creates a reference for the object! */
80 PCURICON_OBJECT FASTCALL
UserGetCurIconObject(HCURSOR hCurIcon
)
82 PCURICON_OBJECT CurIcon
;
86 SetLastWin32Error(ERROR_INVALID_CURSOR_HANDLE
);
90 CurIcon
= (PCURICON_OBJECT
)UserReferenceObjectByHandle(hCurIcon
, otCursorIcon
);
93 /* we never set ERROR_INVALID_ICON_HANDLE. lets hope noone ever checks for it */
94 SetLastWin32Error(ERROR_INVALID_CURSOR_HANDLE
);
98 ASSERT(CurIcon
->head
.cLockObj
>= 1);
105 PCURICON_OBJECT NewCursor
,
108 PSYSTEM_CURSORINFO CurInfo
;
109 PCURICON_OBJECT OldCursor
;
110 HCURSOR hOldCursor
= (HCURSOR
)0;
114 CurInfo
= IntGetSysCursorInfo();
116 OldCursor
= CurInfo
->CurrentCursorObject
;
119 hOldCursor
= (HCURSOR
)OldCursor
->Self
;
122 /* Is the new cursor the same as the old cursor? */
123 if (OldCursor
== NewCursor
)
125 /* Nothing to to do in this case */
129 /* Get the screen DC */
130 if(!(hdcScreen
= IntGetScreenDC()))
135 /* Do we have a new cursor? */
138 UserReferenceObject(NewCursor
);
140 CurInfo
->ShowingCursor
= 1;
141 CurInfo
->CurrentCursorObject
= NewCursor
;
143 /* Call GDI to set the new screen cursor */
144 bResult
= GreSetPointerShape(hdcScreen
,
145 NewCursor
->IconInfo
.hbmMask
,
146 NewCursor
->IconInfo
.hbmColor
,
147 NewCursor
->IconInfo
.xHotspot
,
148 NewCursor
->IconInfo
.yHotspot
,
156 /* Check if were diplaying a cursor */
157 if (OldCursor
&& CurInfo
->ShowingCursor
)
159 /* Remove the cursor */
160 GreMovePointer(hdcScreen
, -1, -1);
161 DPRINT("Removing pointer!\n");
164 CurInfo
->CurrentCursorObject
= NULL
;
165 CurInfo
->ShowingCursor
= 0;
168 /* OldCursor is not in use anymore */
171 UserDereferenceObject(OldCursor
);
174 /* Return handle of the old cursor */
178 BOOL
UserSetCursorPos( INT x
, INT y
, BOOL SendMouseMoveMsg
)
180 PWINDOW_OBJECT DesktopWindow
;
181 PSYSTEM_CURSORINFO CurInfo
;
185 if(!(hDC
= IntGetScreenDC()))
190 CurInfo
= IntGetSysCursorInfo();
192 DesktopWindow
= UserGetDesktopWindow();
196 if(x
>= DesktopWindow
->Wnd
->rcClient
.right
)
197 x
= DesktopWindow
->Wnd
->rcClient
.right
- 1;
198 if(y
>= DesktopWindow
->Wnd
->rcClient
.bottom
)
199 y
= DesktopWindow
->Wnd
->rcClient
.bottom
- 1;
207 //Clip cursor position
208 if(CurInfo
->CursorClipInfo
.IsClipped
)
210 if(x
>= (LONG
)CurInfo
->CursorClipInfo
.Right
)
211 x
= (LONG
)CurInfo
->CursorClipInfo
.Right
- 1;
212 if(x
< (LONG
)CurInfo
->CursorClipInfo
.Left
)
213 x
= (LONG
)CurInfo
->CursorClipInfo
.Left
;
214 if(y
>= (LONG
)CurInfo
->CursorClipInfo
.Bottom
)
215 y
= (LONG
)CurInfo
->CursorClipInfo
.Bottom
- 1;
216 if(y
< (LONG
)CurInfo
->CursorClipInfo
.Top
)
217 y
= (LONG
)CurInfo
->CursorClipInfo
.Top
;
220 //Store the new cursor position
221 gpsi
->ptCursor
.x
= x
;
222 gpsi
->ptCursor
.y
= y
;
224 //Move the mouse pointer
225 GreMovePointer(hDC
, x
, y
);
227 if (!SendMouseMoveMsg
)
230 //Generate a mouse move message
231 Msg
.message
= WM_MOUSEMOVE
;
232 Msg
.wParam
= CurInfo
->ButtonsDown
;
233 Msg
.lParam
= MAKELPARAM(x
, y
);
234 Msg
.pt
= gpsi
->ptCursor
;
235 MsqInsertSystemMessage(&Msg
);
240 /* Called from NtUserCallOneParam with Routine ONEPARAM_ROUTINE_SHOWCURSOR
241 * User32 macro NtUserShowCursor */
242 int UserShowCursor(BOOL bShow
)
244 PSYSTEM_CURSORINFO CurInfo
= IntGetSysCursorInfo();
247 if (!(hdcScreen
= IntGetScreenDC()))
249 return 0; /* No mouse */
254 /* Check if were diplaying a cursor */
255 if (CurInfo
->ShowingCursor
== 1)
257 /* Remove the pointer */
258 GreMovePointer(hdcScreen
, -1, -1);
259 DPRINT("Removing pointer!\n");
261 CurInfo
->ShowingCursor
--;
265 if (CurInfo
->ShowingCursor
== 0)
268 GreMovePointer(hdcScreen
, gpsi
->ptCursor
.x
, gpsi
->ptCursor
.y
);
270 CurInfo
->ShowingCursor
++;
273 return CurInfo
->ShowingCursor
;
277 * We have to register that this object is in use by the current
278 * process. The only way to do that seems to be to walk the list
279 * of cursor/icon objects starting at W32Process->CursorIconListHead.
280 * If the object is already present in the list, we don't have to do
281 * anything, if it's not present we add it and inc the ProcessCount
282 * in the object. Having to walk the list kind of sucks, but that's
285 static BOOLEAN FASTCALL
286 ReferenceCurIconByProcess(PCURICON_OBJECT CurIcon
)
288 PPROCESSINFO Win32Process
;
289 PCURICON_PROCESS Current
;
291 Win32Process
= PsGetCurrentProcessWin32Process();
293 LIST_FOR_EACH(Current
, &CurIcon
->ProcessList
, CURICON_PROCESS
, ListEntry
)
295 if (Current
->Process
== Win32Process
)
297 /* Already registered for this process */
302 /* Not registered yet */
303 Current
= ExAllocateFromPagedLookasideList(&gProcessLookasideList
);
308 InsertHeadList(&CurIcon
->ProcessList
, &Current
->ListEntry
);
309 Current
->Process
= Win32Process
;
314 PCURICON_OBJECT FASTCALL
315 IntFindExistingCurIconObject(HMODULE hModule
,
316 HRSRC hRsrc
, LONG cx
, LONG cy
)
318 PCURICON_OBJECT CurIcon
;
320 LIST_FOR_EACH(CurIcon
, &gCurIconList
, CURICON_OBJECT
, ListEntry
)
323 // if(NT_SUCCESS(UserReferenceObjectByPointer(Object, otCursorIcon))) //<- huh????
324 // UserReferenceObject( CurIcon);
326 if ((CurIcon
->hModule
== hModule
) && (CurIcon
->hRsrc
== hRsrc
))
328 if (cx
&& ((cx
!= CurIcon
->Size
.cx
) || (cy
!= CurIcon
->Size
.cy
)))
330 // UserDereferenceObject(CurIcon);
333 if (! ReferenceCurIconByProcess(CurIcon
))
341 // UserDereferenceObject(CurIcon);
349 IntCreateCurIconHandle()
351 PCURICON_OBJECT CurIcon
;
354 CurIcon
= UserCreateObject(gHandleTable
, NULL
, &hCurIcon
, otCursorIcon
, sizeof(CURICON_OBJECT
));
358 SetLastWin32Error(ERROR_NOT_ENOUGH_MEMORY
);
362 CurIcon
->Self
= hCurIcon
;
363 InitializeListHead(&CurIcon
->ProcessList
);
365 if (! ReferenceCurIconByProcess(CurIcon
))
367 DPRINT1("Failed to add process\n");
368 UserDeleteObject(hCurIcon
, otCursorIcon
);
369 UserDereferenceObject(CurIcon
);
373 InsertHeadList(&gCurIconList
, &CurIcon
->ListEntry
);
379 IntDestroyCurIconObject(PCURICON_OBJECT CurIcon
, BOOL ProcessCleanup
)
381 PSYSTEM_CURSORINFO CurInfo
;
382 HBITMAP bmpMask
, bmpColor
;
384 PCURICON_PROCESS Current
= NULL
;
385 PPROCESSINFO W32Process
= PsGetCurrentProcessWin32Process();
387 /* Private objects can only be destroyed by their own process */
388 if (NULL
== CurIcon
->hModule
)
390 ASSERT(CurIcon
->ProcessList
.Flink
->Flink
== &CurIcon
->ProcessList
);
391 Current
= CONTAINING_RECORD(CurIcon
->ProcessList
.Flink
, CURICON_PROCESS
, ListEntry
);
392 if (Current
->Process
!= W32Process
)
394 DPRINT1("Trying to destroy private icon/cursor of another process\n");
398 else if (! ProcessCleanup
)
400 DPRINT("Trying to destroy shared icon/cursor\n");
404 /* Now find this process in the list of processes referencing this object and
405 remove it from that list */
406 LIST_FOR_EACH(Current
, &CurIcon
->ProcessList
, CURICON_PROCESS
, ListEntry
)
408 if (Current
->Process
== W32Process
)
410 RemoveEntryList(&Current
->ListEntry
);
415 ExFreeToPagedLookasideList(&gProcessLookasideList
, Current
);
417 /* If there are still processes referencing this object we can't destroy it yet */
418 if (! IsListEmpty(&CurIcon
->ProcessList
))
424 if (! ProcessCleanup
)
426 RemoveEntryList(&CurIcon
->ListEntry
);
429 CurInfo
= IntGetSysCursorInfo();
431 if (CurInfo
->CurrentCursorObject
== CurIcon
)
433 /* Hide the cursor if we're destroying the current cursor */
434 UserSetCursor(NULL
, TRUE
);
437 bmpMask
= CurIcon
->IconInfo
.hbmMask
;
438 bmpColor
= CurIcon
->IconInfo
.hbmColor
;
443 GDIOBJ_SetOwnership(bmpMask
, PsGetCurrentProcess());
444 GreDeleteObject(bmpMask
);
445 CurIcon
->IconInfo
.hbmMask
= NULL
;
449 GDIOBJ_SetOwnership(bmpColor
, PsGetCurrentProcess());
450 GreDeleteObject(bmpColor
);
451 CurIcon
->IconInfo
.hbmColor
= NULL
;
454 /* We were given a pointer, no need to keep the reference anylonger! */
455 UserDereferenceObject(CurIcon
);
456 Ret
= UserDeleteObject(CurIcon
->Self
, otCursorIcon
);
462 IntCleanupCurIcons(struct _EPROCESS
*Process
, PPROCESSINFO Win32Process
)
464 PCURICON_OBJECT CurIcon
, tmp
;
465 PCURICON_PROCESS ProcessData
;
467 LIST_FOR_EACH_SAFE(CurIcon
, tmp
, &gCurIconList
, CURICON_OBJECT
, ListEntry
)
469 UserReferenceObject(CurIcon
);
470 // if(NT_SUCCESS(UserReferenceObjectByPointer(Object, otCursorIcon)))
472 LIST_FOR_EACH(ProcessData
, &CurIcon
->ProcessList
, CURICON_PROCESS
, ListEntry
)
474 if (Win32Process
== ProcessData
->Process
)
476 RemoveEntryList(&CurIcon
->ListEntry
);
477 IntDestroyCurIconObject(CurIcon
, TRUE
);
483 // UserDereferenceObject(Object);
488 UserDereferenceObject(CurIcon
);
499 NtUserCreateCursorIconHandle(PICONINFO IconInfo OPTIONAL
, BOOL Indirect
)
501 PCURICON_OBJECT CurIcon
;
505 DECLARE_RETURN(HANDLE
);
507 DPRINT("Enter NtUserCreateCursorIconHandle\n");
508 UserEnterExclusive();
510 if (!(CurIcon
= IntCreateCurIconHandle()))
512 SetLastWin32Error(ERROR_NOT_ENOUGH_MEMORY
);
520 Status
= MmCopyFromCaller(&CurIcon
->IconInfo
, IconInfo
, sizeof(ICONINFO
));
521 if (NT_SUCCESS(Status
))
523 /* Copy bitmaps and size info */
526 /* Convert bitmaps to unowned objects, so that they can be shared between processes */
527 CurIcon
->IconInfo
.hbmMask
= BITMAP_CopyBitmap(CurIcon
->IconInfo
.hbmMask
);
528 GDIOBJ_SetOwnership(CurIcon
->IconInfo
.hbmMask
, NULL
);
529 if(CurIcon
->IconInfo
.hbmColor
)
531 CurIcon
->IconInfo
.hbmColor
= BITMAP_CopyBitmap(CurIcon
->IconInfo
.hbmColor
);
532 GDIOBJ_SetOwnership(CurIcon
->IconInfo
.hbmColor
, NULL
);
535 if (CurIcon
->IconInfo
.hbmColor
&&
536 (psurfBmp
= SURFACE_LockSurface(CurIcon
->IconInfo
.hbmColor
)))
538 CurIcon
->Size
.cx
= psurfBmp
->SurfObj
.sizlBitmap
.cx
;
539 CurIcon
->Size
.cy
= psurfBmp
->SurfObj
.sizlBitmap
.cy
;
540 SURFACE_UnlockSurface(psurfBmp
);
541 GDIOBJ_SetOwnership(CurIcon
->IconInfo
.hbmColor
, NULL
);
543 if (CurIcon
->IconInfo
.hbmMask
&&
544 (psurfBmp
= SURFACE_LockSurface(CurIcon
->IconInfo
.hbmMask
)))
546 if(!CurIcon
->IconInfo
.hbmColor
)
548 CurIcon
->Size
.cx
= psurfBmp
->SurfObj
.sizlBitmap
.cx
;
549 CurIcon
->Size
.cy
= psurfBmp
->SurfObj
.sizlBitmap
.cy
/2;
551 SURFACE_UnlockSurface(psurfBmp
);
552 GDIOBJ_SetOwnership(CurIcon
->IconInfo
.hbmMask
, NULL
);
555 /* Calculate icon hotspot */
556 if (CurIcon
->IconInfo
.fIcon
== TRUE
)
558 CurIcon
->IconInfo
.xHotspot
= CurIcon
->Size
.cx
>> 1;
559 CurIcon
->IconInfo
.yHotspot
= CurIcon
->Size
.cy
>> 1;
564 SetLastNtError(Status
);
565 /* FIXME - Don't exit here */
569 UserDereferenceObject(CurIcon
);
573 DPRINT("Leave NtUserCreateCursorIconHandle, ret=%i\n",_ret_
);
586 PUNICODE_STRING lpInstName
, // optional
587 PUNICODE_STRING lpResName
, // optional
588 LPDWORD pbpp
, // optional
592 PCURICON_OBJECT CurIcon
;
593 NTSTATUS Status
= STATUS_SUCCESS
;
597 DPRINT("Enter NtUserGetIconInfo\n");
598 UserEnterExclusive();
602 SetLastWin32Error(ERROR_INVALID_PARAMETER
);
606 if (!(CurIcon
= UserGetCurIconObject(hCurIcon
)))
611 RtlCopyMemory(&ii
, &CurIcon
->IconInfo
, sizeof(ICONINFO
));
614 ii
.hbmMask
= BITMAP_CopyBitmap(CurIcon
->IconInfo
.hbmMask
);
615 ii
.hbmColor
= BITMAP_CopyBitmap(CurIcon
->IconInfo
.hbmColor
);
621 psurfBmp
= SURFACE_LockSurface(CurIcon
->IconInfo
.hbmColor
);
624 colorBpp
= BitsPerFormat(psurfBmp
->SurfObj
.iBitmapFormat
);
625 SURFACE_UnlockSurface(psurfBmp
);
632 ProbeForWrite(IconInfo
, sizeof(ICONINFO
), 1);
633 RtlCopyMemory(IconInfo
, &ii
, sizeof(ICONINFO
));
637 ProbeForWrite(pbpp
, sizeof(DWORD
), 1);
641 _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER
)
643 Status
= _SEH2_GetExceptionCode();
647 if (NT_SUCCESS(Status
))
650 SetLastNtError(Status
);
652 UserDereferenceObject(CurIcon
);
655 DPRINT("Leave NtUserGetIconInfo, ret=%i\n", Ret
);
670 PLONG plcx
, // &size.cx
671 PLONG plcy
) // &size.cy
673 PCURICON_OBJECT CurIcon
;
674 NTSTATUS Status
= STATUS_SUCCESS
;
677 DPRINT("Enter NtUserGetIconSize\n");
678 UserEnterExclusive();
680 if (!(CurIcon
= UserGetCurIconObject(hCurIcon
)))
687 ProbeForWrite(plcx
, sizeof(LONG
), 1);
688 RtlCopyMemory(plcx
, &CurIcon
->Size
.cx
, sizeof(LONG
));
689 ProbeForWrite(plcy
, sizeof(LONG
), 1);
690 RtlCopyMemory(plcy
, &CurIcon
->Size
.cy
, sizeof(LONG
));
692 _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER
)
694 Status
= _SEH2_GetExceptionCode();
698 if (NT_SUCCESS(Status
))
701 SetLastNtError(Status
); // maybe not, test this
703 UserDereferenceObject(CurIcon
);
706 DPRINT("Leave NtUserGetIconSize, ret=%i\n", bRet
);
717 NtUserGetCursorFrameInfo(
738 PSYSTEM_CURSORINFO CurInfo
;
739 NTSTATUS Status
= STATUS_SUCCESS
;
740 PCURICON_OBJECT CurIcon
;
742 DECLARE_RETURN(BOOL
);
744 DPRINT("Enter NtUserGetCursorInfo\n");
745 UserEnterExclusive();
747 CurInfo
= IntGetSysCursorInfo();
748 CurIcon
= (PCURICON_OBJECT
)CurInfo
->CurrentCursorObject
;
750 SafeCi
.cbSize
= sizeof(CURSORINFO
);
751 SafeCi
.flags
= ((CurInfo
->ShowingCursor
&& CurIcon
) ? CURSOR_SHOWING
: 0);
752 SafeCi
.hCursor
= (CurIcon
? (HCURSOR
)CurIcon
->Self
: (HCURSOR
)0);
754 SafeCi
.ptScreenPos
= gpsi
->ptCursor
;
758 if (pci
->cbSize
== sizeof(CURSORINFO
))
760 ProbeForWrite(pci
, sizeof(CURSORINFO
), 1);
761 RtlCopyMemory(pci
, &SafeCi
, sizeof(CURSORINFO
));
766 SetLastWin32Error(ERROR_INVALID_PARAMETER
);
769 _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER
)
771 Status
= _SEH2_GetExceptionCode();
774 if (!NT_SUCCESS(Status
))
776 SetLastNtError(Status
);
782 DPRINT("Leave NtUserGetCursorInfo, ret=%i\n",_ret_
);
792 /* FIXME - check if process has WINSTA_WRITEATTRIBUTES */
793 PSYSTEM_CURSORINFO CurInfo
;
794 PWINDOW_OBJECT DesktopWindow
= NULL
;
796 CurInfo
= IntGetSysCursorInfo();
798 DesktopWindow
= UserGetDesktopWindow();
801 (prcl
->right
> prcl
->left
) &&
802 (prcl
->bottom
> prcl
->top
) &&
803 DesktopWindow
!= NULL
)
805 CurInfo
->CursorClipInfo
.IsClipped
= TRUE
;
806 CurInfo
->CursorClipInfo
.Left
= max(prcl
->left
, DesktopWindow
->Wnd
->rcWindow
.left
);
807 CurInfo
->CursorClipInfo
.Top
= max(prcl
->top
, DesktopWindow
->Wnd
->rcWindow
.top
);
808 CurInfo
->CursorClipInfo
.Right
= min(prcl
->right
, DesktopWindow
->Wnd
->rcWindow
.right
);
809 CurInfo
->CursorClipInfo
.Bottom
= min(prcl
->bottom
, DesktopWindow
->Wnd
->rcWindow
.bottom
);
811 UserSetCursorPos(gpsi
->ptCursor
.x
, gpsi
->ptCursor
.y
, FALSE
);
815 CurInfo
->CursorClipInfo
.IsClipped
= FALSE
;
829 /* FIXME - check if process has WINSTA_WRITEATTRIBUTES */
837 /* Probe and copy rect */
838 ProbeForRead(prcl
, sizeof(RECTL
), 1);
841 _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER
)
843 SetLastWin32Error(ERROR_INVALID_PARAMETER
);
844 _SEH2_YIELD(return FALSE
;)
851 UserEnterExclusive();
853 /* Call the internal function */
854 bResult
= UserClipCursor(prcl
);
871 PCURICON_OBJECT CurIcon
;
873 DECLARE_RETURN(BOOL
);
875 DPRINT("Enter NtUserDestroyCursorIcon\n");
876 UserEnterExclusive();
878 if (!(CurIcon
= UserGetCurIconObject(hCurIcon
)))
883 ret
= IntDestroyCurIconObject(CurIcon
, FALSE
);
884 /* Note: IntDestroyCurIconObject will remove our reference for us! */
889 DPRINT("Leave NtUserDestroyCursorIcon, ret=%i\n",_ret_
);
900 NtUserFindExistingCursorIcon(
906 PCURICON_OBJECT CurIcon
;
907 HANDLE Ret
= (HANDLE
)0;
908 DECLARE_RETURN(HICON
);
910 DPRINT("Enter NtUserFindExistingCursorIcon\n");
911 UserEnterExclusive();
913 CurIcon
= IntFindExistingCurIconObject(hModule
, hRsrc
, cx
, cy
);
918 // IntReleaseCurIconObject(CurIcon);//faxme: is this correct? does IntFindExistingCurIconObject add a ref?
922 SetLastWin32Error(ERROR_INVALID_CURSOR_HANDLE
);
926 DPRINT("Leave NtUserFindExistingCursorIcon, ret=%i\n",_ret_
);
940 /* FIXME - check if process has WINSTA_READATTRIBUTES */
941 PSYSTEM_CURSORINFO CurInfo
;
944 DECLARE_RETURN(BOOL
);
946 DPRINT("Enter NtUserGetClipCursor\n");
947 UserEnterExclusive();
952 CurInfo
= IntGetSysCursorInfo();
953 if (CurInfo
->CursorClipInfo
.IsClipped
)
955 Rect
.left
= CurInfo
->CursorClipInfo
.Left
;
956 Rect
.top
= CurInfo
->CursorClipInfo
.Top
;
957 Rect
.right
= CurInfo
->CursorClipInfo
.Right
;
958 Rect
.bottom
= CurInfo
->CursorClipInfo
.Bottom
;
964 Rect
.right
= UserGetSystemMetrics(SM_CXSCREEN
);
965 Rect
.bottom
= UserGetSystemMetrics(SM_CYSCREEN
);
968 Status
= MmCopyToCaller(lpRect
, &Rect
, sizeof(RECT
));
969 if (!NT_SUCCESS(Status
))
971 SetLastNtError(Status
);
978 DPRINT("Leave NtUserGetClipCursor, ret=%i\n",_ret_
);
992 PCURICON_OBJECT CurIcon
;
994 DECLARE_RETURN(HCURSOR
);
996 DPRINT("Enter NtUserSetCursor\n");
997 UserEnterExclusive();
1001 if (!(CurIcon
= UserGetCurIconObject(hCursor
)))
1011 OldCursor
= UserSetCursor(CurIcon
, FALSE
);
1015 UserDereferenceObject(CurIcon
);
1021 DPRINT("Leave NtUserSetCursor, ret=%i\n",_ret_
);
1032 NtUserSetCursorContents(
1034 PICONINFO UnsafeIconInfo
)
1036 PCURICON_OBJECT CurIcon
;
1041 DECLARE_RETURN(BOOL
);
1043 DPRINT("Enter NtUserSetCursorContents\n");
1044 UserEnterExclusive();
1046 if (!(CurIcon
= UserGetCurIconObject(hCurIcon
)))
1052 Status
= MmCopyFromCaller(&IconInfo
, UnsafeIconInfo
, sizeof(ICONINFO
));
1053 if (!NT_SUCCESS(Status
))
1055 SetLastNtError(Status
);
1059 /* Delete old bitmaps */
1060 if (CurIcon
->IconInfo
.hbmColor
!= IconInfo
.hbmColor
)
1062 GreDeleteObject(CurIcon
->IconInfo
.hbmColor
);
1064 if (CurIcon
->IconInfo
.hbmMask
!= IconInfo
.hbmMask
)
1066 GreDeleteObject(CurIcon
->IconInfo
.hbmMask
);
1069 /* Copy new IconInfo field */
1070 CurIcon
->IconInfo
= IconInfo
;
1072 psurfBmp
= SURFACE_LockSurface(CurIcon
->IconInfo
.hbmColor
);
1075 CurIcon
->Size
.cx
= psurfBmp
->SurfObj
.sizlBitmap
.cx
;
1076 CurIcon
->Size
.cy
= psurfBmp
->SurfObj
.sizlBitmap
.cy
;
1077 SURFACE_UnlockSurface(psurfBmp
);
1078 GDIOBJ_SetOwnership(CurIcon
->IconInfo
.hbmColor
, NULL
);
1082 psurfBmp
= SURFACE_LockSurface(CurIcon
->IconInfo
.hbmMask
);
1086 CurIcon
->Size
.cx
= psurfBmp
->SurfObj
.sizlBitmap
.cx
;
1087 CurIcon
->Size
.cy
= psurfBmp
->SurfObj
.sizlBitmap
.cy
/ 2;
1089 SURFACE_UnlockSurface(psurfBmp
);
1090 GDIOBJ_SetOwnership(CurIcon
->IconInfo
.hbmMask
, NULL
);
1099 UserDereferenceObject(CurIcon
);
1104 DPRINT("Leave NtUserSetCursorContents, ret=%i\n",_ret_
);
1116 NtUserSetCursorIconData(
1119 PUNICODE_STRING pstrResName
,
1120 PICONINFO pIconInfo
)
1122 PCURICON_OBJECT CurIcon
;
1124 NTSTATUS Status
= STATUS_SUCCESS
;
1126 DECLARE_RETURN(BOOL
);
1128 DPRINT("Enter NtUserSetCursorIconData\n");
1129 UserEnterExclusive();
1131 if (!(CurIcon
= UserGetCurIconObject(Handle
)))
1136 CurIcon
->hModule
= hModule
;
1137 CurIcon
->hRsrc
= NULL
; //hRsrc;
1138 CurIcon
->hGroupRsrc
= NULL
; //hGroupRsrc;
1142 ProbeForRead(pIconInfo
, sizeof(ICONINFO
), 1);
1143 RtlCopyMemory(&CurIcon
->IconInfo
, pIconInfo
, sizeof(ICONINFO
));
1145 CurIcon
->IconInfo
.hbmMask
= BITMAP_CopyBitmap(pIconInfo
->hbmMask
);
1146 CurIcon
->IconInfo
.hbmColor
= BITMAP_CopyBitmap(pIconInfo
->hbmColor
);
1148 if (CurIcon
->IconInfo
.hbmColor
)
1150 if ((psurfBmp
= SURFACE_LockSurface(CurIcon
->IconInfo
.hbmColor
)))
1152 CurIcon
->Size
.cx
= psurfBmp
->SurfObj
.sizlBitmap
.cx
;
1153 CurIcon
->Size
.cy
= psurfBmp
->SurfObj
.sizlBitmap
.cy
;
1154 SURFACE_UnlockSurface(psurfBmp
);
1155 GDIOBJ_SetOwnership(GdiHandleTable
, CurIcon
->IconInfo
.hbmMask
, NULL
);
1158 if (CurIcon
->IconInfo
.hbmMask
)
1160 if (CurIcon
->IconInfo
.hbmColor
== NULL
)
1162 if ((psurfBmp
= SURFACE_LockSurface(CurIcon
->IconInfo
.hbmMask
)))
1164 CurIcon
->Size
.cx
= psurfBmp
->SurfObj
.sizlBitmap
.cx
;
1165 CurIcon
->Size
.cy
= psurfBmp
->SurfObj
.sizlBitmap
.cy
;
1166 SURFACE_UnlockSurface(psurfBmp
);
1169 GDIOBJ_SetOwnership(GdiHandleTable
, CurIcon
->IconInfo
.hbmMask
, NULL
);
1172 _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER
)
1174 Status
= _SEH2_GetExceptionCode();
1178 if (!NT_SUCCESS(Status
))
1179 SetLastNtError(Status
);
1183 UserDereferenceObject(CurIcon
);
1187 DPRINT("Leave NtUserSetCursorIconData, ret=%i\n",_ret_
);
1194 NtUserSetCursorIconData(
1202 PCURICON_OBJECT CurIcon
;
1206 DECLARE_RETURN(BOOL
);
1208 DPRINT("Enter NtUserSetCursorIconData\n");
1209 UserEnterExclusive();
1211 if (!(CurIcon
= UserGetCurIconObject(hCurIcon
)))
1216 CurIcon
->hModule
= hModule
;
1217 CurIcon
->hRsrc
= hRsrc
;
1218 CurIcon
->hGroupRsrc
= hGroupRsrc
;
1223 Status
= MmCopyFromCaller(&CurIcon
->IconInfo
.fIcon
, fIcon
, sizeof(BOOL
));
1224 if (!NT_SUCCESS(Status
))
1226 SetLastNtError(Status
);
1238 Status
= MmCopyFromCaller(&SafeHotspot
, Hotspot
, sizeof(POINT
));
1239 if (NT_SUCCESS(Status
))
1241 CurIcon
->IconInfo
.xHotspot
= SafeHotspot
.x
;
1242 CurIcon
->IconInfo
.yHotspot
= SafeHotspot
.y
;
1247 SetLastNtError(Status
);
1250 if (!fIcon
&& !Hotspot
)
1256 UserDereferenceObject(CurIcon
);
1261 DPRINT("Leave NtUserSetCursorIconData, ret=%i\n",_ret_
);
1272 NtUserSetSystemCursor(
1279 /* Mostly inspired from wine code */
1285 PCURICON_OBJECT pIcon
,
1289 HBRUSH hbrFlickerFreeDraw
,
1293 HBITMAP hbmMask
, hbmColor
;
1294 BITMAP bmpColor
, bm
;
1296 INT iOldBkColor
= 0, iOldTxtColor
= 0;
1298 HDC hMemDC
, hDestDC
= hDc
;
1299 HGDIOBJ hOldOffBrush
= 0;
1300 HGDIOBJ hOldOffBmp
= 0;
1301 HBITMAP hTmpBmp
= 0, hOffBmp
= 0;
1302 BOOL bAlpha
= FALSE
;
1303 INT x
=xLeft
, y
=yTop
;
1305 hbmMask
= pIcon
->IconInfo
.hbmMask
;
1306 hbmColor
= pIcon
->IconInfo
.hbmColor
;
1309 DPRINT1("NtUserDrawIconEx: istepIfAniCur is not supported!\n");
1311 if (!hbmMask
|| !IntGdiGetObject(hbmMask
, sizeof(BITMAP
), (PVOID
)&bm
))
1316 if (hbmColor
&& !IntGdiGetObject(hbmColor
, sizeof(BITMAP
), (PVOID
)&bmpColor
))
1321 if(!(hMemDC
= NtGdiCreateCompatibleDC(hDc
)))
1323 DPRINT1("NtGdiCreateCompatibleDC failed!\n");
1327 /* NtGdiCreateCompatibleBitmap will create a monochrome bitmap
1328 when cxWidth or cyHeight is 0 */
1330 && (bmpColor
.bmBitsPixel
== 32)
1333 && (diFlags
& DI_IMAGE
))
1335 SURFACE
*psurfOff
= NULL
;
1336 PFN_DIB_GetPixel fnSource_GetPixel
= NULL
;
1339 /* In order to correctly display 32 bit icons Windows first scans the image,
1340 because information about transparency is not stored in any image's headers */
1341 psurfOff
= SURFACE_LockSurface(hbmColor
);
1344 fnSource_GetPixel
= DibFunctionsForBitmapFormat
[psurfOff
->SurfObj
.iBitmapFormat
].DIB_GetPixel
;
1345 if (fnSource_GetPixel
)
1347 for (i
= 0; i
< psurfOff
->SurfObj
.sizlBitmap
.cx
; i
++)
1349 for (j
= 0; j
< psurfOff
->SurfObj
.sizlBitmap
.cy
; j
++)
1351 bAlpha
= ((BYTE
)(fnSource_GetPixel(&psurfOff
->SurfObj
, i
, j
) >> 24) & 0xff);
1359 SURFACE_UnlockSurface(psurfOff
);
1364 cxWidth
= ((diFlags
& DI_DEFAULTSIZE
) ?
1365 UserGetSystemMetrics(SM_CXICON
) : pIcon
->Size
.cx
);
1368 cyHeight
= ((diFlags
& DI_DEFAULTSIZE
) ?
1369 UserGetSystemMetrics(SM_CYICON
) : pIcon
->Size
.cy
);
1371 DoFlickerFree
= (hbrFlickerFreeDraw
&&
1372 (GDI_HANDLE_GET_TYPE(hbrFlickerFreeDraw
) == GDI_OBJECT_TYPE_BRUSH
));
1376 hDestDC
= NtGdiCreateCompatibleDC(hDc
);
1379 DPRINT1("NtGdiCreateCompatibleDC failed!\n");
1383 hOffBmp
= NtGdiCreateCompatibleBitmap(hDc
, cxWidth
, cyHeight
);
1386 DPRINT1("NtGdiCreateCompatibleBitmap failed!\n");
1389 hOldOffBmp
= NtGdiSelectBitmap(hDestDC
, hOffBmp
);
1390 hOldOffBrush
= NtGdiSelectBrush(hDestDC
, hbrFlickerFreeDraw
);
1391 NtGdiPatBlt(hDestDC
, 0, 0, cxWidth
, cyHeight
, PATCOPY
);
1392 NtGdiSelectBrush(hDestDC
, hOldOffBrush
);
1396 /* Set Background/foreground colors */
1397 iOldTxtColor
= IntGdiSetTextColor(hDc
, 0); //black
1398 iOldBkColor
= IntGdiSetBkColor(hDc
, 0x00FFFFFF); //white
1400 if(bAlpha
&& (diFlags
& DI_IMAGE
))
1402 BLENDFUNCTION pixelblend
= { AC_SRC_OVER
, 0, 255, AC_SRC_ALPHA
};
1404 BYTE Red
, Green
, Blue
, Alpha
;
1409 HBITMAP hMemBmp
= NULL
;
1411 pBits
= ExAllocatePoolWithTag(PagedPool
,
1412 bmpColor
.bmWidthBytes
* abs(bmpColor
.bmHeight
),
1420 hMemBmp
= BITMAP_CopyBitmap(hbmColor
);
1423 DPRINT1("BITMAP_CopyBitmap failed!");
1427 psurf
= SURFACE_LockSurface(hMemBmp
);
1430 DPRINT1("SURFACE_LockSurface failed!\n");
1433 /* get color bits */
1434 IntGetBitmapBits(psurf
,
1435 bmpColor
.bmWidthBytes
* abs(bmpColor
.bmHeight
),
1438 /* premultiply with the alpha channel value */
1439 for (i
= 0; i
< cyHeight
; i
++)
1441 for (j
= 0; j
< cxWidth
; j
++)
1443 Pixel
= *(DWORD
*)(pBits
+ Count
);
1445 Alpha
= ((BYTE
)(Pixel
>> 24) & 0xff);
1447 Red
= (((BYTE
)(Pixel
>> 0)) * Alpha
) / 0xff;
1448 Green
= (((BYTE
)(Pixel
>> 8)) * Alpha
) / 0xff;
1449 Blue
= (((BYTE
)(Pixel
>> 16)) * Alpha
) / 0xff;
1451 *(DWORD
*)(pBits
+ Count
) = (DWORD
)(Red
| (Green
<< 8) | (Blue
<< 16) | (Alpha
<< 24));
1453 Count
+= sizeof(DWORD
);
1458 IntSetBitmapBits(psurf
,
1459 bmpColor
.bmWidthBytes
* abs(bmpColor
.bmHeight
),
1461 SURFACE_UnlockSurface(psurf
);
1463 hTmpBmp
= NtGdiSelectBitmap(hMemDC
, hMemBmp
);
1465 Ret
= NtGdiAlphaBlend(hDestDC
,
1477 NtGdiSelectBitmap(hMemDC
, hTmpBmp
);
1479 if(pBits
) ExFreePoolWithTag(pBits
, TAG_BITMAP
);
1480 if(hMemBmp
) NtGdiDeleteObjectApp(hMemBmp
);
1485 if (diFlags
& DI_MASK
)
1487 hTmpBmp
= NtGdiSelectBitmap(hMemDC
, hbmMask
);
1488 NtGdiStretchBlt(hDestDC
,
1500 NtGdiSelectBitmap(hMemDC
, hTmpBmp
);
1503 if(diFlags
& DI_IMAGE
)
1507 DWORD rop
= (diFlags
& DI_MASK
) ? SRCINVERT
: SRCCOPY
;
1508 hTmpBmp
= NtGdiSelectBitmap(hMemDC
, hbmColor
);
1509 NtGdiStretchBlt(hDestDC
,
1521 NtGdiSelectBitmap(hMemDC
, hTmpBmp
);
1525 /* Mask bitmap holds the information in its second half */
1526 DWORD rop
= (diFlags
& DI_MASK
) ? SRCINVERT
: SRCCOPY
;
1527 hTmpBmp
= NtGdiSelectBitmap(hMemDC
, hbmMask
);
1528 NtGdiStretchBlt(hDestDC
,
1540 NtGdiSelectBitmap(hMemDC
, hTmpBmp
);
1547 NtGdiBitBlt(hDc
, xLeft
, yTop
, cxWidth
, cyHeight
, hDestDC
, 0, 0, SRCCOPY
, 0, 0);
1550 /* Restore foreground and background colors */
1551 IntGdiSetBkColor(hDc
, iOldBkColor
);
1552 IntGdiSetTextColor(hDc
, iOldTxtColor
);
1557 NtGdiDeleteObjectApp(hMemDC
);
1560 if(hOldOffBmp
) NtGdiSelectBitmap(hDestDC
, hOldOffBmp
);
1561 NtGdiDeleteObjectApp(hDestDC
);
1562 if(hOffBmp
) NtGdiDeleteObjectApp(hOffBmp
);
1581 HBRUSH hbrFlickerFreeDraw
,
1583 BOOL bMetaHDC
, // When TRUE, GDI functions need to be handled in User32!
1586 PCURICON_OBJECT pIcon
;
1589 DPRINT("Enter NtUserDrawIconEx\n");
1590 UserEnterExclusive();
1592 if (!(pIcon
= UserGetCurIconObject(hIcon
)))
1594 DPRINT1("UserGetCurIconObject() failed!\n");
1599 Ret
= UserDrawIconEx(hdc
,
1609 UserDereferenceObject(pIcon
);