VOID NTAPI DC_vRestoreDC	(	IN PDC	pdc,
		INT	iSaveLevel
	)
Definition at line 100 of file dcstate.c.
Referenced by DC_Cleanup(), and NtGdiRestoreDC().
{
    HDC hdcSave;
    PDC pdcSave;

    ASSERT(iSaveLevel > 0);
    DPRINT("DC_vRestoreDC(%p, %ld)\n", pdc->BaseObject.hHmgr, iSaveLevel);

    /* Loop the save levels */
    while (pdc->dclevel.lSaveDepth > iSaveLevel)
    {
        hdcSave = pdc->dclevel.hdcSave;
        DPRINT("RestoreDC = %p\n", hdcSave);

        /* Set us as the owner */
        if (!GreSetObjectOwner(hdcSave, GDI_OBJ_HMGR_POWNED))
        {
            /* Could not get ownership. That's bad! */
            DPRINT1("Could not get ownership of saved DC (%p) for hdc %p!\n",
                    hdcSave, pdc->BaseObject.hHmgr);
            return;// FALSE;
        }

        /* Lock the saved dc */
        pdcSave = DC_LockDc(hdcSave);
        if (!pdcSave)
        {
            /* WTF? Internal error! */
            DPRINT1("Could not lock the saved DC (%p) for dc %p!\n",
                    hdcSave, pdc->BaseObject.hHmgr);
            return;// FALSE;
        }

        /* Remove the saved dc from the queue */
        pdc->dclevel.hdcSave = pdcSave->dclevel.hdcSave;

        /* Decrement save level */
        pdc->dclevel.lSaveDepth--;

        /* Is this the state we want? */
        if (pdc->dclevel.lSaveDepth == iSaveLevel)
        {
            /* Copy the state back */
            DC_vCopyState(pdcSave, pdc, FALSE);

            /* Only memory DC's change their surface */
            if (pdc->dctype == DCTYPE_MEMORY)
                DC_vSelectSurface(pdc, pdcSave->dclevel.pSurface);

            // Restore Path by removing it, if the Save flag is set.
            // BeginPath will takecare of the rest.
            if (pdc->dclevel.hPath && pdc->dclevel.flPath & DCPATH_SAVE)
            {
                PATH_Delete(pdc->dclevel.hPath);
                pdc->dclevel.hPath = 0;
                pdc->dclevel.flPath &= ~DCPATH_SAVE;
            }
        }

        /* Prevent save dc from being restored */
        pdcSave->dclevel.lSaveDepth = 1;

        /* Unlock it */
        DC_UnlockDc(pdcSave);
        /* Delete the saved dc */
        GreDeleteObject(hdcSave);
    }

    DPRINT("Leave DC_vRestoreDC()\n");
}
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