/*
+ * ReactOS W32 Subsystem
+ * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 ReactOS Team
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* PURPOSE: Monitor support
/* INITALIZATION FUNCTIONS ****************************************************/
-INIT_FUNCTION
NTSTATUS
-NTAPI
InitMonitorImpl()
{
- DPRINT("Initializing monitor implementation...\n");
+ DPRINT("Initializing monitor implementation...\n");
- return STATUS_SUCCESS;
+ return STATUS_SUCCESS;
}
NTSTATUS
CleanupMonitorImpl()
{
- DPRINT("Cleaning up monitor implementation...\n");
- /* FIXME: Destroy monitor objects? */
+ DPRINT("Cleaning up monitor implementation...\n");
+ /* FIXME: Destroy monitor objects? */
- return STATUS_SUCCESS;
+ return STATUS_SUCCESS;
}
/* PRIVATE FUNCTIONS **********************************************************/
+#ifndef MIN
+# define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+#ifndef MAX
+# define MAX(a, b) ((a) > (b) ? (a) : (b))
+#endif
+#ifndef ABS
+# define ABS(a) ((a) < (0) ? (-(a)) : (a))
+#endif
+
/* IntCreateMonitorObject
*
* Creates a MONITOR
PMONITOR
IntCreateMonitorObject()
{
- HANDLE Handle;
- PMONITOR Monitor;
+ HANDLE Handle;
+ PMONITOR Monitor;
- Monitor = UserCreateObject(gHandleTable, NULL, &Handle, otMonitor, sizeof (MONITOR));
- if (Monitor == NULL)
- {
- return NULL;
- }
+ Monitor = UserCreateObject(gHandleTable, NULL, &Handle, otMonitor, sizeof (MONITOR));
+ if (Monitor == NULL)
+ {
+ return NULL;
+ }
- ExInitializeFastMutex(&Monitor->Lock);
+ ExInitializeFastMutex(&Monitor->Lock);
- return Monitor;
+ return Monitor;
}
/* IntDestroyMonitorObject
void
IntDestroyMonitorObject(IN PMONITOR pMonitor)
{
- RtlFreeUnicodeString(&pMonitor->DeviceName);
- UserDereferenceObject(pMonitor);
+ RtlFreeUnicodeString(&pMonitor->DeviceName);
+ UserDereferenceObject(pMonitor);
}
PMONITOR FASTCALL
UserGetMonitorObject(IN HMONITOR hMonitor)
{
- PMONITOR Monitor;
+ PMONITOR Monitor;
+
+ if (!hMonitor)
+ {
+ SetLastWin32Error(ERROR_INVALID_MONITOR_HANDLE);
+ return NULL;
+ }
- if (!hMonitor)
- {
- SetLastWin32Error(ERROR_INVALID_MONITOR_HANDLE);
- return NULL;
- }
- Monitor = (PMONITOR)UserGetObject(gHandleTable, hMonitor, otMonitor);
- if (!Monitor)
- {
- SetLastWin32Error(ERROR_INVALID_MONITOR_HANDLE);
- return NULL;
- }
+ Monitor = (PMONITOR)UserGetObject(gHandleTable, hMonitor, otMonitor);
+ if (!Monitor)
+ {
+ SetLastWin32Error(ERROR_INVALID_MONITOR_HANDLE);
+ return NULL;
+ }
- ASSERT(Monitor->head.cLockObj >= 0);
+ ASSERT(Monitor->head.cLockObj >= 0);
- return Monitor;
+ return Monitor;
}
IntAttachMonitor(IN PDEVOBJ *pGdiDevice,
IN ULONG DisplayNumber)
{
- PMONITOR Monitor;
- WCHAR Buffer[CCHDEVICENAME];
-
- DPRINT("Attaching monitor...\n");
-
- /* create new monitor object */
- Monitor = IntCreateMonitorObject();
- if (Monitor == NULL)
- {
- DPRINT("Couldnt create monitor object\n");
- return STATUS_INSUFFICIENT_RESOURCES;
- }
-
- _snwprintf(Buffer, CCHDEVICENAME, L"\\\\.\\DISPLAY%d", DisplayNumber + 1);
- if (!RtlCreateUnicodeString(&Monitor->DeviceName, Buffer))
- {
- DPRINT("Couldn't duplicate monitor name!\n");
- UserDereferenceObject(Monitor);
- UserDeleteObject(UserHMGetHandle(Monitor), otMonitor);
- return STATUS_INSUFFICIENT_RESOURCES;
- }
-
- Monitor->GdiDevice = pGdiDevice;
- Monitor->rcMonitor.left = 0;
- Monitor->rcMonitor.top = 0;
- Monitor->rcMonitor.right = Monitor->rcMonitor.left + pGdiDevice->gdiinfo.ulHorzRes;
- Monitor->rcMonitor.bottom = Monitor->rcMonitor.top + pGdiDevice->gdiinfo.ulVertRes;
- Monitor->rcWork = Monitor->rcMonitor;
- Monitor->cWndStack = 0;
-
- Monitor->hrgnMonitor = IntSysCreateRectRgnIndirect( &Monitor->rcMonitor );
-
- IntGdiSetRegionOwner(Monitor->hrgnMonitor, GDI_OBJ_HMGR_PUBLIC);
-
- if (gMonitorList == NULL)
- {
- DPRINT("Primary monitor is beeing attached\n");
- Monitor->IsPrimary = TRUE;
- gMonitorList = Monitor;
- }
- else
- {
- PMONITOR p;
- DPRINT("Additional monitor is beeing attached\n");
- for (p = gMonitorList; p->Next != NULL; p = p->Next)
- {
- p->Next = Monitor;
- }
- Monitor->Prev = p;
- }
-
- return STATUS_SUCCESS;
+ PMONITOR Monitor;
+ WCHAR Buffer[CCHDEVICENAME];
+
+ DPRINT("Attaching monitor...\n");
+
+ /* create new monitor object */
+ Monitor = IntCreateMonitorObject();
+ if (Monitor == NULL)
+ {
+ DPRINT("Couldnt create monitor object\n");
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ _snwprintf(Buffer, CCHDEVICENAME, L"\\\\.\\DISPLAY%d", DisplayNumber + 1);
+ if (!RtlCreateUnicodeString(&Monitor->DeviceName, Buffer))
+ {
+ DPRINT("Couldn't duplicate monitor name!\n");
+ UserDereferenceObject(Monitor);
+ UserDeleteObject(UserHMGetHandle(Monitor), otMonitor);
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ Monitor->GdiDevice = pGdiDevice;
+ Monitor->rcMonitor.left = 0;
+ Monitor->rcMonitor.top = 0;
+ Monitor->rcMonitor.right = Monitor->rcMonitor.left + pGdiDevice->gdiinfo.ulHorzRes;
+ Monitor->rcMonitor.bottom = Monitor->rcMonitor.top + pGdiDevice->gdiinfo.ulVertRes;
+ Monitor->rcWork = Monitor->rcMonitor;
+ Monitor->cWndStack = 0;
+
+ Monitor->hrgnMonitor = IntSysCreateRectRgnIndirect( &Monitor->rcMonitor );
+
+ IntGdiSetRegionOwner(Monitor->hrgnMonitor, GDI_OBJ_HMGR_PUBLIC);
+
+ if (gMonitorList == NULL)
+ {
+ DPRINT("Primary monitor is beeing attached\n");
+ Monitor->IsPrimary = TRUE;
+ gMonitorList = Monitor;
+ }
+ else
+ {
+ PMONITOR p;
+ DPRINT("Additional monitor is beeing attached\n");
+ for (p = gMonitorList; p->Next != NULL; p = p->Next)
+ {
+ p->Next = Monitor;
+ }
+ Monitor->Prev = p;
+ }
+
+ return STATUS_SUCCESS;
}
/* IntDetachMonitor
NTSTATUS
IntDetachMonitor(IN PDEVOBJ *pGdiDevice)
{
- PMONITOR Monitor;
-
- for (Monitor = gMonitorList; Monitor != NULL; Monitor = Monitor->Next)
- {
- if (Monitor->GdiDevice == pGdiDevice)
- break;
- }
-
- if (Monitor == NULL)
- {
- /* no monitor for given device found */
- return STATUS_INVALID_PARAMETER;
- }
-
- if (Monitor->IsPrimary && (Monitor->Next != NULL || Monitor->Prev != NULL))
- {
- PMONITOR NewPrimaryMonitor = (Monitor->Prev != NULL) ? (Monitor->Prev) : (Monitor->Next);
-
- ExEnterCriticalRegionAndAcquireFastMutexUnsafe(&NewPrimaryMonitor->Lock);
- NewPrimaryMonitor->IsPrimary = TRUE;
- ExReleaseFastMutexUnsafeAndLeaveCriticalRegion(&NewPrimaryMonitor->Lock);
- }
-
- if (gMonitorList == Monitor)
- {
- gMonitorList = Monitor->Next;
- if (Monitor->Next != NULL)
- Monitor->Next->Prev = NULL;
- }
- else
- {
- Monitor->Prev->Next = Monitor->Next;
- if (Monitor->Next != NULL)
- Monitor->Next->Prev = Monitor->Prev;
- }
-
- if (Monitor->hrgnMonitor)
- REGION_FreeRgnByHandle(Monitor->hrgnMonitor);
-
- IntDestroyMonitorObject(Monitor);
-
- return STATUS_SUCCESS;
+ PMONITOR Monitor;
+
+ for (Monitor = gMonitorList; Monitor != NULL; Monitor = Monitor->Next)
+ {
+ if (Monitor->GdiDevice == pGdiDevice)
+ break;
+ }
+
+ if (Monitor == NULL)
+ {
+ /* no monitor for given device found */
+ return STATUS_INVALID_PARAMETER;
+ }
+
+ if (Monitor->IsPrimary && (Monitor->Next != NULL || Monitor->Prev != NULL))
+ {
+ PMONITOR NewPrimaryMonitor = (Monitor->Prev != NULL) ? (Monitor->Prev) : (Monitor->Next);
+
+ ExEnterCriticalRegionAndAcquireFastMutexUnsafe(&NewPrimaryMonitor->Lock);
+ NewPrimaryMonitor->IsPrimary = TRUE;
+ ExReleaseFastMutexUnsafeAndLeaveCriticalRegion(&NewPrimaryMonitor->Lock);
+ }
+
+ if (gMonitorList == Monitor)
+ {
+ gMonitorList = Monitor->Next;
+ if (Monitor->Next != NULL)
+ Monitor->Next->Prev = NULL;
+ }
+ else
+ {
+ Monitor->Prev->Next = Monitor->Next;
+ if (Monitor->Next != NULL)
+ Monitor->Next->Prev = Monitor->Prev;
+ }
+
+ if (Monitor->hrgnMonitor)
+ REGION_FreeRgnByHandle(Monitor->hrgnMonitor);
+
+ IntDestroyMonitorObject(Monitor);
+
+ return STATUS_SUCCESS;
}
/* IntGetPrimaryMonitor
FASTCALL
IntGetPrimaryMonitor()
{
- PMONITOR Monitor;
+ PMONITOR Monitor;
- for (Monitor = gMonitorList; Monitor != NULL; Monitor = Monitor->Next)
- {
- /* FIXME: I guess locking the monitor is not neccessary to read 1 int */
- if (Monitor->IsPrimary)
- break;
- }
+ for (Monitor = gMonitorList; Monitor != NULL; Monitor = Monitor->Next)
+ {
+ /* FIXME: I guess locking the monitor is not neccessary to read 1 int */
+ if (Monitor->IsPrimary)
+ break;
+ }
- return Monitor;
+ return Monitor;
}
/* IntGetMonitorsFromRect
OPTIONAL IN DWORD listSize,
OPTIONAL IN DWORD flags)
{
- PMONITOR Monitor, NearestMonitor = NULL, PrimaryMonitor = NULL;
- UINT iCount = 0;
- ULONG iNearestDistance = 0xffffffff;
-
- /* Find monitors which intersect the rectangle */
- for (Monitor = gMonitorList; Monitor != NULL; Monitor = Monitor->Next)
- {
- RECTL MonitorRect, IntersectionRect;
-
- ExEnterCriticalRegionAndAcquireFastMutexUnsafe(&Monitor->Lock);
- MonitorRect = Monitor->rcMonitor;
- ExReleaseFastMutexUnsafeAndLeaveCriticalRegion(&Monitor->Lock);
-
- DPRINT("MonitorRect: left = %d, top = %d, right = %d, bottom = %d\n",
- MonitorRect.left, MonitorRect.top, MonitorRect.right, MonitorRect.bottom);
-
- if (flags == MONITOR_DEFAULTTOPRIMARY && Monitor->IsPrimary)
- {
- PrimaryMonitor = Monitor;
- }
-
- /* Check if a rect is given */
- if (pRect == NULL)
- {
- /* No rect given, so use the full monitor rect */
- IntersectionRect = MonitorRect;
- }
-
- /* We have a rect, calculate intersection */
- else if (!RECTL_bIntersectRect(&IntersectionRect, &MonitorRect, pRect))
- {
- /* Rects did not intersect */
- if (flags == MONITOR_DEFAULTTONEAREST)
+ PMONITOR Monitor, NearestMonitor = NULL, PrimaryMonitor = NULL;
+ UINT iCount = 0;
+ LONG iNearestDistanceX = 0x7fffffff, iNearestDistanceY = 0x7fffffff;
+
+ /* find monitors which intersect the rectangle */
+ for (Monitor = gMonitorList; Monitor != NULL; Monitor = Monitor->Next)
+ {
+ RECTL MonitorRect, IntersectionRect;
+
+ ExEnterCriticalRegionAndAcquireFastMutexUnsafe(&Monitor->Lock);
+ MonitorRect = Monitor->rcMonitor;
+ ExReleaseFastMutexUnsafeAndLeaveCriticalRegion(&Monitor->Lock);
+
+ DPRINT("MonitorRect: left = %d, top = %d, right = %d, bottom = %d\n",
+ MonitorRect.left, MonitorRect.top, MonitorRect.right, MonitorRect.bottom);
+
+ if (flags == MONITOR_DEFAULTTOPRIMARY && Monitor->IsPrimary)
+ {
+ PrimaryMonitor = Monitor;
+ }
+
+ if (pRect != NULL)
+ {
+ BOOL intersects = TRUE;
+
+ /* check if the rect intersects the monitor */
+ if ((pRect->right < MonitorRect.left) || (pRect->left > MonitorRect.right) ||
+ (pRect->bottom < MonitorRect.top) || (pRect->top > MonitorRect.bottom))
+ {
+ intersects = FALSE;
+ }
+
+ if (flags == MONITOR_DEFAULTTONEAREST && !intersects)
+ {
+ INT distanceX, distanceY;
+
+ distanceX = MIN(ABS(MonitorRect.left - pRect->right),
+ ABS(pRect->left - MonitorRect.right));
+ distanceY = MIN(ABS(MonitorRect.top - pRect->bottom),
+ ABS(pRect->top - MonitorRect.bottom));
+
+ if (((distanceX < iNearestDistanceX) && (distanceY <= iNearestDistanceY)) ||
+ ((distanceX <= iNearestDistanceX) && (distanceY < iNearestDistanceY)))
{
- ULONG cx, cy, iDistance;
-
- /* Get x and y distance */
- cx = min(abs(MonitorRect.left - pRect->right),
- abs(pRect->left - MonitorRect.right));
- cy = min(abs(MonitorRect.top - pRect->bottom),
- abs(pRect->top - MonitorRect.bottom));
-
- /* Calculate distance square */
- iDistance = cx * cx + cy * cy;
-
- /* Check if this is the new nearest monitor */
- if (iDistance < iNearestDistance)
- {
- iNearestDistance = iDistance;
- NearestMonitor = Monitor;
- }
+ iNearestDistanceX = distanceX;
+ iNearestDistanceY = distanceY;
+ NearestMonitor = Monitor;
}
+ }
+ if (!intersects)
continue;
- }
-
- /* Check if there's space in the buffer */
- if (iCount < listSize)
- {
- if (hMonitorList != NULL)
- hMonitorList[iCount] = UserHMGetHandle(Monitor);
- if (monitorRectList != NULL)
- monitorRectList[iCount] = IntersectionRect;
- }
-
- /* Increase count of found monitors */
- iCount++;
- }
-
- /* Found nothing intersecting? */
- if (iCount == 0)
- {
- /* Check if we shall default to the nearest monitor */
- if (flags == MONITOR_DEFAULTTONEAREST && NearestMonitor)
- {
- if (hMonitorList && listSize > 0)
- hMonitorList[iCount] = UserHMGetHandle(NearestMonitor);
- iCount++;
- }
- /* Check if we shall default to the primary monitor */
- else if (flags == MONITOR_DEFAULTTOPRIMARY && PrimaryMonitor)
- {
- if (hMonitorList != NULL && listSize > 0)
- hMonitorList[iCount] = UserHMGetHandle(PrimaryMonitor);
- iCount++;
- }
- }
-
- return iCount;
+
+ /* calculate intersection */
+ IntersectionRect.left = MAX(MonitorRect.left, pRect->left);
+ IntersectionRect.top = MAX(MonitorRect.top, pRect->top);
+ IntersectionRect.right = MIN(MonitorRect.right, pRect->right);
+ IntersectionRect.bottom = MIN(MonitorRect.bottom, pRect->bottom);
+ }
+ else
+ {
+ IntersectionRect = MonitorRect;
+ }
+
+ if (iCount < listSize)
+ {
+ if (hMonitorList != NULL)
+ hMonitorList[iCount] = UserHMGetHandle(Monitor);
+ if (monitorRectList != NULL)
+ monitorRectList[iCount] = IntersectionRect;
+ }
+ iCount++;
+ }
+
+ if (iCount == 0 && flags == MONITOR_DEFAULTTONEAREST)
+ {
+ if (iCount < listSize)
+ {
+ if (hMonitorList != NULL)
+ hMonitorList[iCount] = UserHMGetHandle(NearestMonitor);
+ }
+ iCount++;
+ }
+ else if (iCount == 0 && flags == MONITOR_DEFAULTTOPRIMARY)
+ {
+ if (iCount < listSize)
+ {
+ if (hMonitorList != NULL)
+ hMonitorList[iCount] = UserHMGetHandle(PrimaryMonitor);
+ }
+ iCount++;
+ }
+ return iCount;
}
/* PUBLIC FUNCTIONS ***********************************************************/
INT
APIENTRY
NtUserEnumDisplayMonitors(
- OPTIONAL IN HDC hDC,
- OPTIONAL IN LPCRECTL pRect,
- OPTIONAL OUT HMONITOR *hMonitorList,
- OPTIONAL OUT PRECTL monitorRectList,
- OPTIONAL IN DWORD listSize)
+ OPTIONAL IN HDC hDC,
+ OPTIONAL IN LPCRECTL pRect,
+ OPTIONAL OUT HMONITOR *hMonitorList,
+ OPTIONAL OUT PRECTL monitorRectList,
+ OPTIONAL IN DWORD listSize)
{
- INT numMonitors, i;
- HMONITOR *safeHMonitorList = NULL;
- PRECTL safeRectList = NULL;
- RECTL rect, *myRect;
- RECTL dcRect;
- NTSTATUS status;
-
- /* get rect */
- if (pRect != NULL)
- {
- status = MmCopyFromCaller(&rect, pRect, sizeof (RECT));
- if (!NT_SUCCESS(status))
- {
- DPRINT("MmCopyFromCaller() failed!\n");
- SetLastNtError(status);
- return -1;
- }
- }
-
- if (hDC != NULL)
- {
- PDC dc;
- INT regionType;
-
- /* get visible region bounding rect */
- dc = DC_LockDc(hDC);
- if (dc == NULL)
- {
- DPRINT("DC_LockDc() failed!\n");
- /* FIXME: setlasterror? */
- return -1;
- }
- regionType = REGION_GetRgnBox(dc->prgnVis, &dcRect);
- DC_UnlockDc(dc);
-
- if (regionType == 0)
- {
- DPRINT("NtGdiGetRgnBox() failed!\n");
- return -1;
- }
- if (regionType == NULLREGION)
- return 0;
- if (regionType == COMPLEXREGION)
- {
- /* TODO: warning */
- }
-
- /* if hDC and pRect are given the area of interest is pRect with
- coordinate origin at the DC position */
- if (pRect != NULL)
- {
- rect.left += dcRect.left;
- rect.right += dcRect.left;
- rect.top += dcRect.top;
- rect.bottom += dcRect.top;
- }
- /* if hDC is given and pRect is not the area of interest is the
- bounding rect of hDC */
- else
- {
- rect = dcRect;
- }
- }
-
- if (hDC == NULL && pRect == NULL)
- myRect = NULL;
- else
- myRect = ▭
-
- /* find intersecting monitors */
- numMonitors = IntGetMonitorsFromRect(myRect, NULL, NULL, 0, 0);
- if (numMonitors == 0 || listSize == 0 ||
- (hMonitorList == NULL && monitorRectList == NULL))
- {
- DPRINT("numMonitors = %d\n", numMonitors);
- return numMonitors;
- }
-
- if (hMonitorList != NULL && listSize != 0)
- {
- safeHMonitorList = ExAllocatePoolWithTag(PagedPool, sizeof (HMONITOR) * listSize, USERTAG_MONITORRECTS);
- if (safeHMonitorList == NULL)
- {
- /* FIXME: SetLastWin32Error? */
- return -1;
- }
- }
- if (monitorRectList != NULL && listSize != 0)
- {
- safeRectList = ExAllocatePoolWithTag(PagedPool, sizeof (RECT) * listSize, USERTAG_MONITORRECTS);
- if (safeRectList == NULL)
- {
- ExFreePoolWithTag(safeHMonitorList, USERTAG_MONITORRECTS);
- /* FIXME: SetLastWin32Error? */
- return -1;
- }
- }
-
- /* get intersecting monitors */
- numMonitors = IntGetMonitorsFromRect(myRect, safeHMonitorList, safeRectList,
- listSize, 0 );
-
- if (hDC != NULL && pRect != NULL && safeRectList != NULL)
- for (i = 0; i < numMonitors; i++)
- {
- safeRectList[i].left -= dcRect.left;
- safeRectList[i].right -= dcRect.left;
- safeRectList[i].top -= dcRect.top;
- safeRectList[i].bottom -= dcRect.top;
- }
-
- /* output result */
- if (hMonitorList != NULL && listSize != 0)
- {
- status = MmCopyToCaller(hMonitorList, safeHMonitorList, sizeof (HMONITOR) * listSize);
- ExFreePool(safeHMonitorList);
- if (!NT_SUCCESS(status))
- {
- ExFreePoolWithTag(safeRectList, USERTAG_MONITORRECTS);
- SetLastNtError(status);
- return -1;
- }
- }
- if (monitorRectList != NULL && listSize != 0)
- {
- status = MmCopyToCaller(monitorRectList, safeRectList, sizeof (RECT) * listSize);
- ExFreePoolWithTag(safeRectList, USERTAG_MONITORRECTS);
- if (!NT_SUCCESS(status))
- {
- SetLastNtError(status);
- return -1;
- }
- }
-
- return numMonitors;
+ INT numMonitors, i;
+ HMONITOR *safeHMonitorList = NULL;
+ PRECTL safeRectList = NULL;
+ RECTL rect, *myRect;
+ RECTL dcRect;
+ NTSTATUS status;
+
+ /* get rect */
+ if (pRect != NULL)
+ {
+ status = MmCopyFromCaller(&rect, pRect, sizeof (RECT));
+ if (!NT_SUCCESS(status))
+ {
+ DPRINT("MmCopyFromCaller() failed!\n");
+ SetLastNtError(status);
+ return -1;
+ }
+ }
+
+ if (hDC != NULL)
+ {
+ PDC dc;
+ INT regionType;
+
+ /* get visible region bounding rect */
+ dc = DC_LockDc(hDC);
+ if (dc == NULL)
+ {
+ DPRINT("DC_LockDc() failed!\n");
+ /* FIXME: setlasterror? */
+ return -1;
+ }
+ regionType = REGION_GetRgnBox(dc->prgnVis, &dcRect);
+ DC_UnlockDc(dc);
+
+ if (regionType == 0)
+ {
+ DPRINT("NtGdiGetRgnBox() failed!\n");
+ return -1;
+ }
+ if (regionType == NULLREGION)
+ return 0;
+ if (regionType == COMPLEXREGION)
+ { /* TODO: warning */
+ }
+
+ /* if hDC and pRect are given the area of interest is pRect with
+ coordinate origin at the DC position */
+ if (pRect != NULL)
+ {
+ rect.left += dcRect.left;
+ rect.right += dcRect.left;
+ rect.top += dcRect.top;
+ rect.bottom += dcRect.top;
+ }
+ /* if hDC is given and pRect is not the area of interest is the
+ bounding rect of hDC */
+ else
+ {
+ rect = dcRect;
+ }
+ }
+
+ if (hDC == NULL && pRect == NULL)
+ myRect = NULL;
+ else
+ myRect = ▭
+
+ /* find intersecting monitors */
+ numMonitors = IntGetMonitorsFromRect(myRect, NULL, NULL, 0, 0);
+ if (numMonitors == 0 || listSize == 0 ||
+ (hMonitorList == NULL && monitorRectList == NULL))
+ {
+ DPRINT("numMonitors = %d\n", numMonitors);
+ return numMonitors;
+ }
+
+ if (hMonitorList != NULL && listSize != 0)
+ {
+ safeHMonitorList = ExAllocatePoolWithTag(PagedPool, sizeof (HMONITOR) * listSize, USERTAG_MONITORRECTS);
+ if (safeHMonitorList == NULL)
+ {
+ /* FIXME: SetLastWin32Error? */
+ return -1;
+ }
+ }
+ if (monitorRectList != NULL && listSize != 0)
+ {
+ safeRectList = ExAllocatePoolWithTag(PagedPool, sizeof (RECT) * listSize, USERTAG_MONITORRECTS);
+ if (safeRectList == NULL)
+ {
+ ExFreePoolWithTag(safeHMonitorList, USERTAG_MONITORRECTS);
+ /* FIXME: SetLastWin32Error? */
+ return -1;
+ }
+ }
+
+ /* get intersecting monitors */
+ numMonitors = IntGetMonitorsFromRect(myRect, safeHMonitorList, safeRectList,
+ listSize, 0 );
+
+ if (hDC != NULL && pRect != NULL && safeRectList != NULL)
+ for (i = 0; i < numMonitors; i++)
+ {
+ safeRectList[i].left -= dcRect.left;
+ safeRectList[i].right -= dcRect.left;
+ safeRectList[i].top -= dcRect.top;
+ safeRectList[i].bottom -= dcRect.top;
+ }
+
+ /* output result */
+ if (hMonitorList != NULL && listSize != 0)
+ {
+ status = MmCopyToCaller(hMonitorList, safeHMonitorList, sizeof (HMONITOR) * listSize);
+ ExFreePool(safeHMonitorList);
+ if (!NT_SUCCESS(status))
+ {
+ ExFreePoolWithTag(safeRectList, USERTAG_MONITORRECTS);
+ SetLastNtError(status);
+ return -1;
+ }
+ }
+ if (monitorRectList != NULL && listSize != 0)
+ {
+ status = MmCopyToCaller(monitorRectList, safeRectList, sizeof (RECT) * listSize);
+ ExFreePoolWithTag(safeRectList, USERTAG_MONITORRECTS);
+ if (!NT_SUCCESS(status))
+ {
+ SetLastNtError(status);
+ return -1;
+ }
+ }
+
+ return numMonitors;
}
/* NtUserGetMonitorInfo
BOOL
APIENTRY
NtUserGetMonitorInfo(
- IN HMONITOR hMonitor,
- OUT LPMONITORINFO pMonitorInfo)
+ IN HMONITOR hMonitor,
+ OUT LPMONITORINFO pMonitorInfo)
{
- PMONITOR Monitor;
- MONITORINFOEXW MonitorInfo;
- NTSTATUS Status;
- DECLARE_RETURN(BOOL);
-
- DPRINT("Enter NtUserGetMonitorInfo\n");
- UserEnterShared();
-
- /* get monitor object */
- if (!(Monitor = UserGetMonitorObject(hMonitor)))
- {
- DPRINT("Couldnt find monitor 0x%lx\n", hMonitor);
- RETURN(FALSE);
- }
-
- if(pMonitorInfo == NULL)
- {
- SetLastNtError(STATUS_INVALID_PARAMETER);
- RETURN(FALSE);
- }
-
- /* get size of pMonitorInfo */
- Status = MmCopyFromCaller(&MonitorInfo.cbSize, &pMonitorInfo->cbSize, sizeof (MonitorInfo.cbSize));
- if (!NT_SUCCESS(Status))
- {
- SetLastNtError(Status);
- RETURN(FALSE);
- }
- if ((MonitorInfo.cbSize != sizeof (MONITORINFO)) &&
- (MonitorInfo.cbSize != sizeof (MONITORINFOEXW)))
- {
- SetLastNtError(STATUS_INVALID_PARAMETER);
- RETURN(FALSE);
- }
-
- /* fill monitor info */
- MonitorInfo.rcMonitor = Monitor->rcMonitor;
- MonitorInfo.rcWork = Monitor->rcWork;
- MonitorInfo.dwFlags = 0;
-
- if (Monitor->IsPrimary)
- MonitorInfo.dwFlags |= MONITORINFOF_PRIMARY;
-
- /* fill device name */
- if (MonitorInfo.cbSize == sizeof (MONITORINFOEXW))
- {
- WCHAR nul = L'\0';
- INT len = Monitor->DeviceName.Length;
- if (len >= CCHDEVICENAME * sizeof (WCHAR))
- len = (CCHDEVICENAME - 1) * sizeof (WCHAR);
-
- memcpy(MonitorInfo.szDevice, Monitor->DeviceName.Buffer, len);
- memcpy(MonitorInfo.szDevice + (len / sizeof (WCHAR)), &nul, sizeof (WCHAR));
- }
-
- /* output data */
- Status = MmCopyToCaller(pMonitorInfo, &MonitorInfo, MonitorInfo.cbSize);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("GetMonitorInfo: MmCopyToCaller failed\n");
- SetLastNtError(Status);
- RETURN(FALSE);
- }
-
- DPRINT("GetMonitorInfo: success\n");
-
- RETURN(TRUE);
+ PMONITOR Monitor;
+ MONITORINFOEXW MonitorInfo;
+ NTSTATUS Status;
+ DECLARE_RETURN(BOOL);
+
+ DPRINT("Enter NtUserGetMonitorInfo\n");
+ UserEnterShared();
+
+ /* get monitor object */
+ if (!(Monitor = UserGetMonitorObject(hMonitor)))
+ {
+ DPRINT("Couldnt find monitor 0x%lx\n", hMonitor);
+ RETURN(FALSE);
+ }
+
+ if(pMonitorInfo == NULL)
+ {
+ SetLastNtError(STATUS_INVALID_PARAMETER);
+ RETURN(FALSE);
+ }
+
+ /* get size of pMonitorInfo */
+ Status = MmCopyFromCaller(&MonitorInfo.cbSize, &pMonitorInfo->cbSize, sizeof (MonitorInfo.cbSize));
+ if (!NT_SUCCESS(Status))
+ {
+ SetLastNtError(Status);
+ RETURN(FALSE);
+ }
+ if ((MonitorInfo.cbSize != sizeof (MONITORINFO)) &&
+ (MonitorInfo.cbSize != sizeof (MONITORINFOEXW)))
+ {
+ SetLastNtError(STATUS_INVALID_PARAMETER);
+ RETURN(FALSE);
+ }
+
+ /* fill monitor info */
+ MonitorInfo.rcMonitor = Monitor->rcMonitor;
+ MonitorInfo.rcWork = Monitor->rcWork;
+ MonitorInfo.dwFlags = 0;
+
+ if (Monitor->IsPrimary)
+ MonitorInfo.dwFlags |= MONITORINFOF_PRIMARY;
+
+ /* fill device name */
+ if (MonitorInfo.cbSize == sizeof (MONITORINFOEXW))
+ {
+ WCHAR nul = L'\0';
+ INT len = Monitor->DeviceName.Length;
+ if (len >= CCHDEVICENAME * sizeof (WCHAR))
+ len = (CCHDEVICENAME - 1) * sizeof (WCHAR);
+
+ memcpy(MonitorInfo.szDevice, Monitor->DeviceName.Buffer, len);
+ memcpy(MonitorInfo.szDevice + (len / sizeof (WCHAR)), &nul, sizeof (WCHAR));
+ }
+
+ /* output data */
+ Status = MmCopyToCaller(pMonitorInfo, &MonitorInfo, MonitorInfo.cbSize);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT("GetMonitorInfo: MmCopyToCaller failed\n");
+ SetLastNtError(Status);
+ RETURN(FALSE);
+ }
+
+ DPRINT("GetMonitorInfo: success\n");
+
+ RETURN(TRUE);
CLEANUP:
- DPRINT("Leave NtUserGetMonitorInfo, ret=%i\n",_ret_);
- UserLeave();
- END_CLEANUP;
+ DPRINT("Leave NtUserGetMonitorInfo, ret=%i\n",_ret_);
+ UserLeave();
+ END_CLEANUP;
}
/* NtUserMonitorFromPoint
HMONITOR
APIENTRY
NtUserMonitorFromPoint(
- IN POINT point,
- IN DWORD dwFlags)
+ IN POINT point,
+ IN DWORD dwFlags)
{
- INT NumMonitors;
- RECTL InRect;
- HMONITOR hMonitor = NULL;
-
- /* fill inRect (bottom-right exclusive) */
- InRect.left = point.x;
- InRect.right = point.x + 1;
- InRect.top = point.y;
- InRect.bottom = point.y + 1;
-
- /* find intersecting monitor */
- NumMonitors = IntGetMonitorsFromRect(&InRect, &hMonitor, NULL, 1, dwFlags);
- if (NumMonitors < 0)
- {
- return (HMONITOR)NULL;
- }
-
- return hMonitor;
+ INT NumMonitors;
+ RECTL InRect;
+ HMONITOR hMonitor = NULL;
+
+ /* fill inRect */
+ InRect.left = InRect.right = point.x;
+ InRect.top = InRect.bottom = point.y;
+
+ /* find intersecting monitor */
+ NumMonitors = IntGetMonitorsFromRect(&InRect, &hMonitor, NULL, 1, 0);
+ if (NumMonitors < 0)
+ {
+ return (HMONITOR)NULL;
+ }
+
+ if (hMonitor == NULL)
+ {
+ if (dwFlags == MONITOR_DEFAULTTOPRIMARY)
+ {
+ PMONITOR MonitorObj = IntGetPrimaryMonitor();
+ if (MonitorObj)
+ hMonitor = UserHMGetHandle(MonitorObj);
+ }
+ else if (dwFlags == MONITOR_DEFAULTTONEAREST)
+ {
+ NumMonitors = IntGetMonitorsFromRect(&InRect, &hMonitor, NULL,
+ 1, MONITOR_DEFAULTTONEAREST);
+ /*ASSERT( (numMonitors > 0) && (hMonitor != NULL) );*/
+ }
+ /* else flag is DEFAULTTONULL */
+ }
+
+ return hMonitor;
}
/* NtUserMonitorFromRect
HMONITOR
APIENTRY
NtUserMonitorFromRect(
- IN LPCRECTL pRect,
- IN DWORD dwFlags)
+ IN LPCRECTL pRect,
+ IN DWORD dwFlags)
{
- ULONG numMonitors, iLargestArea = 0, i;
- PRECTL rectList;
- HMONITOR *hMonitorList;
- HMONITOR hMonitor = NULL;
- RECTL rect;
- NTSTATUS status;
-
- /* get rect */
- status = MmCopyFromCaller(&rect, pRect, sizeof (RECT));
- if (!NT_SUCCESS(status))
- {
- SetLastNtError(status);
- return (HMONITOR)NULL;
- }
-
- /* find intersecting monitors */
- numMonitors = IntGetMonitorsFromRect(&rect, &hMonitor, NULL, 1, dwFlags);
- if (numMonitors <= 1)
- {
- return hMonitor;
- }
-
- hMonitorList = ExAllocatePoolWithTag(PagedPool,
- sizeof(HMONITOR) * numMonitors,
- USERTAG_MONITORRECTS);
- if (hMonitorList == NULL)
- {
- /* FIXME: SetLastWin32Error? */
- return (HMONITOR)NULL;
- }
-
- rectList = ExAllocatePoolWithTag(PagedPool,
- sizeof(RECT) * numMonitors,
- USERTAG_MONITORRECTS);
- if (rectList == NULL)
- {
- ExFreePoolWithTag(hMonitorList, USERTAG_MONITORRECTS);
- /* FIXME: SetLastWin32Error? */
- return (HMONITOR)NULL;
- }
-
- /* get intersecting monitors */
- numMonitors = IntGetMonitorsFromRect(&rect, hMonitorList, rectList,
- numMonitors, 0);
- if (numMonitors == 0)
- {
- ExFreePoolWithTag(hMonitorList, USERTAG_MONITORRECTS);
- ExFreePoolWithTag(rectList, USERTAG_MONITORRECTS);
- return (HMONITOR)NULL;
- }
-
- /* find largest intersection */
- for (i = 0; i < numMonitors; i++)
- {
- ULONG area = (rectList[i].right - rectList[i].left) *
- (rectList[i].bottom - rectList[i].top);
- if (area >= iLargestArea)
- {
- hMonitor = hMonitorList[i];
- }
- }
-
- ExFreePoolWithTag(hMonitorList, USERTAG_MONITORRECTS);
- ExFreePoolWithTag(rectList, USERTAG_MONITORRECTS);
-
- return hMonitor;
+ INT numMonitors, iLargestArea = -1, i;
+ PRECTL rectList;
+ HMONITOR *hMonitorList;
+ HMONITOR hMonitor = NULL;
+ RECTL rect;
+ NTSTATUS status;
+
+ /* get rect */
+ status = MmCopyFromCaller(&rect, pRect, sizeof (RECT));
+ if (!NT_SUCCESS(status))
+ {
+ SetLastNtError(status);
+ return (HMONITOR)NULL;
+ }
+
+ /* find intersecting monitors */
+ numMonitors = IntGetMonitorsFromRect(&rect, NULL, NULL, 0, 0);
+ if (numMonitors < 0)
+ {
+ return (HMONITOR)NULL;
+ }
+
+ if (numMonitors == 0)
+ {
+ if (dwFlags == MONITOR_DEFAULTTOPRIMARY)
+ {
+ PMONITOR monitorObj = IntGetPrimaryMonitor();
+ if (monitorObj)
+ return UserHMGetHandle(monitorObj);
+ }
+ else if (dwFlags == MONITOR_DEFAULTTONEAREST)
+ {
+ numMonitors = IntGetMonitorsFromRect(&rect, &hMonitor, NULL,
+ 1, MONITOR_DEFAULTTONEAREST);
+ if (numMonitors <= 0)
+ {
+ /* error? */
+ return (HMONITOR)NULL;
+ }
+
+ if (numMonitors > 0)
+ return hMonitor;
+ }
+ /* else flag is DEFAULTTONULL */
+ return (HMONITOR)NULL;
+ }
+
+ hMonitorList = ExAllocatePoolWithTag(PagedPool, sizeof (HMONITOR) * numMonitors, USERTAG_MONITORRECTS);
+ if (hMonitorList == NULL)
+ {
+ /* FIXME: SetLastWin32Error? */
+ return (HMONITOR)NULL;
+ }
+ rectList = ExAllocatePoolWithTag(PagedPool, sizeof (RECT) * numMonitors, USERTAG_MONITORRECTS);
+ if (rectList == NULL)
+ {
+ ExFreePoolWithTag(hMonitorList, USERTAG_MONITORRECTS);
+ /* FIXME: SetLastWin32Error? */
+ return (HMONITOR)NULL;
+ }
+
+ /* get intersecting monitors */
+ numMonitors = IntGetMonitorsFromRect(&rect, hMonitorList, rectList,
+ numMonitors, 0);
+ if (numMonitors <= 0)
+ {
+ ExFreePoolWithTag(hMonitorList, USERTAG_MONITORRECTS);
+ ExFreePoolWithTag(rectList, USERTAG_MONITORRECTS);
+ return (HMONITOR)NULL;
+ }
+
+ /* find largest intersection */
+ for (i = 0; i < numMonitors; i++)
+ {
+ INT area = (rectList[i].right - rectList[i].left) *
+ (rectList[i].bottom - rectList[i].top);
+ if (area > iLargestArea)
+ {
+ hMonitor = hMonitorList[i];
+ }
+ }
+
+ ExFreePoolWithTag(hMonitorList, USERTAG_MONITORRECTS);
+ ExFreePoolWithTag(rectList, USERTAG_MONITORRECTS);
+
+ return hMonitor;
}
HMONITOR
APIENTRY
NtUserMonitorFromWindow(
- IN HWND hWnd,
- IN DWORD dwFlags)
+ IN HWND hWnd,
+ IN DWORD dwFlags)
{
- PWND Window;
- HMONITOR hMonitor = NULL;
- RECTL Rect;
- DECLARE_RETURN(HMONITOR);
+ PWND Window;
+ HMONITOR hMonitor = NULL;
+ RECTL Rect;
+ DECLARE_RETURN(HMONITOR);
- DPRINT("Enter NtUserMonitorFromWindow\n");
- UserEnterShared();
+ DPRINT("Enter NtUserMonitorFromWindow\n");
+ UserEnterShared();
- if (!(Window = UserGetWindowObject(hWnd)))
- {
- if (dwFlags == MONITOR_DEFAULTTONULL)
- {
- RETURN(hMonitor);
- }
- IntGetMonitorsFromRect(NULL, &hMonitor, NULL, 1, dwFlags);
- RETURN(hMonitor);
- }
+ if (!(Window = UserGetWindowObject(hWnd)))
+ {
+ if (dwFlags == MONITOR_DEFAULTTONULL)
+ {
+ RETURN(hMonitor);
+ }
+ IntGetMonitorsFromRect(NULL, &hMonitor, NULL, 1, dwFlags);
+ RETURN(hMonitor);
+ }
- Rect.left = Rect.right = Window->rcWindow.left;
- Rect.top = Rect.bottom = Window->rcWindow.bottom;
+ Rect.left = Rect.right = Window->rcWindow.left;
+ Rect.top = Rect.bottom = Window->rcWindow.bottom;
- IntGetMonitorsFromRect(&Rect, &hMonitor, NULL, 1, dwFlags);
+ IntGetMonitorsFromRect(&Rect, &hMonitor, NULL, 1, dwFlags);
- RETURN(hMonitor);
+ RETURN(hMonitor);
CLEANUP:
- DPRINT("Leave NtUserMonitorFromWindow, ret=%i\n",_ret_);
- UserLeave();
- END_CLEANUP;
+ DPRINT("Leave NtUserMonitorFromWindow, ret=%i\n",_ret_);
+ UserLeave();
+ END_CLEANUP;
}
projects / reactos.git / blobdiff