/* UserAttachMonitor
*
* Creates a new MONITOR and appends it to the list of monitors.
*
* Arguments
*
* pGdiDevice Pointer to the PDEVOBJ onto which the monitor was attached
* DisplayNumber Display Number (starting with 0)
*
* Return value
* Returns a NTSTATUS
*/
NTSTATUS NTAPI
UserAttachMonitor(IN HDEV hDev)
{
PMONITOR pMonitor;
TRACE("Attaching monitor...\n");
/* Create new monitor object */
pMonitor = IntCreateMonitorObject();
if (pMonitor == NULL)
{
TRACE("Couldnt create monitor object\n");
return STATUS_INSUFFICIENT_RESOURCES;
}
pMonitor->hDev = hDev;
pMonitor->cWndStack = 0;
if (gMonitorList == NULL)
{
TRACE("Primary monitor is beeing attached\n");
pMonitor->IsPrimary = TRUE;
gMonitorList = pMonitor;
}
else
{
PMONITOR pmonLast = gMonitorList;
TRACE("Additional monitor is beeing attached\n");
while (pmonLast->pMonitorNext != NULL)
pmonLast = pmonLast->pMonitorNext;
pmonLast->pMonitorNext = pMonitor;
}
UserUpdateMonitorSize(hDev);
return STATUS_SUCCESS;
}
LONG
APIENTRY
UserChangeDisplaySettings(
PUNICODE_STRING pustrDevice,
LPDEVMODEW pdm,
HWND hwnd,
DWORD flags,
LPVOID lParam)
{
DEVMODEW dm;
LONG lResult = DISP_CHANGE_SUCCESSFUL;
HKEY hkey;
NTSTATUS Status;
PPDEVOBJ ppdev;
//PDESKTOP pdesk;
/* If no DEVMODE is given, use registry settings */
if (!pdm)
{
/* Get the registry settings */
Status = UserEnumRegistryDisplaySettings(pustrDevice, &dm);
if (!NT_SUCCESS(Status))
{
ERR("Could not load registry settings\n");
return DISP_CHANGE_BADPARAM;
}
}
else if (pdm->dmSize < FIELD_OFFSET(DEVMODEW, dmFields))
return DISP_CHANGE_BADMODE; /* This is what winXP SP3 returns */
else
dm = *pdm;
/* Check params */
if ((dm.dmFields & (DM_PELSWIDTH | DM_PELSHEIGHT)) != (DM_PELSWIDTH | DM_PELSHEIGHT))
{
ERR("Devmode doesn't specify the resolution.\n");
return DISP_CHANGE_BADMODE;
}
/* Get the PDEV */
ppdev = EngpGetPDEV(pustrDevice);
if (!ppdev)
{
ERR("Failed to get PDEV\n");
return DISP_CHANGE_BADPARAM;
}
/* Fixup values */
if(dm.dmBitsPerPel == 0 || !(dm.dmFields & DM_BITSPERPEL))
{
dm.dmBitsPerPel = ppdev->pdmwDev->dmBitsPerPel;
dm.dmFields |= DM_BITSPERPEL;
}
if((dm.dmFields & DM_DISPLAYFREQUENCY) && (dm.dmDisplayFrequency == 0))
dm.dmDisplayFrequency = ppdev->pdmwDev->dmDisplayFrequency;
/* Look for the requested DEVMODE */
pdm = PDEVOBJ_pdmMatchDevMode(ppdev, &dm);
if (!pdm)
{
ERR("Could not find a matching DEVMODE\n");
lResult = DISP_CHANGE_BADMODE;
goto leave;
}
else if (flags & CDS_TEST)
{
/* It's possible, go ahead! */
lResult = DISP_CHANGE_SUCCESSFUL;
goto leave;
}
/* Shall we update the registry? */
if (flags & CDS_UPDATEREGISTRY)
{
/* Open the local or global settings key */
Status = UserOpenDisplaySettingsKey(&hkey, pustrDevice, flags & CDS_GLOBAL);
if (NT_SUCCESS(Status))
{
/* Store the settings */
RegWriteDisplaySettings(hkey, pdm);
/* Close the registry key */
ZwClose(hkey);
}
else
{
ERR("Could not open registry key\n");
lResult = DISP_CHANGE_NOTUPDATED;
}
}
/* Check if DEVMODE matches the current mode */
if (pdm == ppdev->pdmwDev && !(flags & CDS_RESET))
{
ERR("DEVMODE matches, nothing to do\n");
goto leave;
}
/* Shall we apply the settings? */
if (!(flags & CDS_NORESET))
{
ULONG ulResult;
PVOID pvOldCursor;
/* Remove mouse pointer */
pvOldCursor = UserSetCursor(NULL, TRUE);
/* Do the mode switch */
ulResult = PDEVOBJ_bSwitchMode(ppdev, pdm);
/* Restore mouse pointer, no hooks called */
UserSetCursor(pvOldCursor, TRUE);
/* Check for failure */
if (!ulResult)
{
ERR("Failed to set mode\n");
lResult = (lResult == DISP_CHANGE_NOTUPDATED) ?
DISP_CHANGE_FAILED : DISP_CHANGE_RESTART;
goto leave;
}
/* Update the system metrics */
InitMetrics();
//IntvGetDeviceCaps(&PrimarySurface, &GdiHandleTable->DevCaps);
/* Set new size of the monitor */
UserUpdateMonitorSize((HDEV)ppdev);
/* Remove all cursor clipping */
UserClipCursor(NULL);
//pdesk = IntGetActiveDesktop();
//IntHideDesktop(pdesk);
/* Send WM_DISPLAYCHANGE to all toplevel windows */
co_IntSendMessageTimeout(HWND_BROADCAST,
WM_DISPLAYCHANGE,
(WPARAM)ppdev->gdiinfo.cBitsPixel,
(LPARAM)(ppdev->gdiinfo.ulHorzRes + (ppdev->gdiinfo.ulVertRes << 16)),
SMTO_NORMAL,
100,
&ulResult);
//co_IntShowDesktop(pdesk, ppdev->gdiinfo.ulHorzRes, ppdev->gdiinfo.ulVertRes);
UserRedrawDesktop();
}
leave:
/* Release the PDEV */
PDEVOBJ_vRelease(ppdev);
return lResult;
}
