VOID
FASTCALL
IntUpdateBoundsRect(PDC pdc, PRECTL pRect)
{
if (pdc->fs & DC_ACCUM_APP)
{
RECTL_bUnionRect(&pdc->erclBoundsApp, &pdc->erclBoundsApp, pRect);
}
if (pdc->fs & DC_ACCUM_WMGR)
{
RECTL_bUnionRect(&pdc->erclBounds, &pdc->erclBounds, pRect);
}
}
DWORD
APIENTRY
NtGdiSetBoundsRect(
IN HDC hdc,
IN LPRECT prc,
IN DWORD flags)
{
DWORD ret;
PDC pdc;
RECTL rcl;
/* Verify arguments */
if ((flags & DCB_ENABLE) && (flags & DCB_DISABLE)) return 0;
/* Lock the DC */
if (!(pdc = DC_LockDc(hdc))) return 0;
/* Get the return value */
ret = pdc->fs & DC_ACCUM_APP ? DCB_ENABLE : DCB_DISABLE;
ret |= RECTL_bIsEmptyRect(&pdc->erclBoundsApp) ? DCB_RESET : DCB_SET;
if (flags & DCB_RESET)
{
RECTL_vSetEmptyRect(&pdc->erclBoundsApp);
}
if (flags & DCB_ACCUMULATE && prc != NULL)
{
/* Capture the rect */
_SEH2_TRY
{
ProbeForRead(prc, sizeof(RECT), 1);
rcl = *prc;
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
DC_UnlockDc(pdc);
_SEH2_YIELD(return 0;)
}
_SEH2_END;
RECTL_vMakeWellOrdered(&rcl);
RECTL_bUnionRect(&pdc->erclBoundsApp, &pdc->erclBoundsApp, &rcl);
}
DWORD
APIENTRY
NtGdiSetBoundsRect(
IN HDC hdc,
IN LPRECT prc,
IN DWORD flags)
{
DWORD ret;
PDC pdc;
RECTL rcl;
/* Verify arguments */
if ((flags & DCB_ENABLE) && (flags & DCB_DISABLE)) return 0;
/* Lock the DC */
if (!(pdc = DC_LockDc(hdc))) return 0;
/* Get the return value */
ret = DCB_RESET; /* we don't have device-specific bounds */
ret = (pdc->fs & (DC_ACCUM_APP|DC_ACCUM_WMGR) ? DCB_ENABLE : DCB_DISABLE) |
(RECTL_bIsEmptyRect(&pdc->erclBoundsApp) ? ret & DCB_SET : DCB_SET );
ret |= (flags & DCB_WINDOWMGR);
if (flags & DCB_RESET)
{
if (!(flags & DCB_WINDOWMGR))
{
pdc->erclBoundsApp.left = pdc->erclBoundsApp.top = INT_MAX;
pdc->erclBoundsApp.right = pdc->erclBoundsApp.bottom = INT_MIN;
}
else
{
pdc->erclBounds.left = pdc->erclBounds.top = INT_MAX;
pdc->erclBounds.right = pdc->erclBounds.bottom = INT_MIN;
}
}
if (flags & DCB_ACCUMULATE && prc != NULL)
{
/* Capture the rect */
_SEH2_TRY
{
ProbeForRead(prc, sizeof(RECT), 1);
rcl = *prc;
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
DC_UnlockDc(pdc);
_SEH2_YIELD(return 0;)
}
_SEH2_END;
RECTL_vMakeWellOrdered(&rcl);
if (!(flags & DCB_WINDOWMGR))
{
IntLPtoDP( pdc, (POINT *)&rcl, 2 );
RECTL_bUnionRect(&pdc->erclBoundsApp, &pdc->erclBoundsApp, &rcl);
}
else
RECTL_bUnionRect(&pdc->erclBounds, &pdc->erclBounds, &rcl);
}
