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VolumeTexture.LockBox(Int32,Box,LockFlags,LockedBox) Method (Microsoft.DirectX.Direct3D)

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Locks a box on a volume texture resource.

Definition

Visual Basic Public Function LockBox( _
    ByVal level As Integer, _
    ByVal box As Box, _
    ByVal flags As LockFlags, _
    ByRef lockedVolume As LockedBox _
) As GraphicsStream
C# public GraphicsStream LockBox(
    int level,
    Box box,
    LockFlags flags,
    out LockedBox lockedVolume
);
C++ public:
GraphicsStream^ LockBox(
    int level,
    Box box,
    LockFlags flags,
    [Out] LockedBox% lockedVolume
);
JScript public function LockBox(
    level : int,
    box : Box,
    flags : LockFlags,
    lockedVolume : LockedBox
) : GraphicsStream;

Parameters

level System.Int32
Value that specifies a level of the texture resource to lock.
box Microsoft.DirectX.Direct3D.Box
A Box structure that indicates the region to lock. Omitting this parameter locks the entire volume level.
flags Microsoft.DirectX.Direct3D.LockFlags
Zero or more locking flags that describe the type of lock to perform. For this method, the valid flags are Discard, NoDirtyUpdate, NoSystemLock, and ReadOnly. For a description of the flags, see LockFlags.
lockedVolume Microsoft.DirectX.Direct3D.LockedBox
A LockedBox structure that describes the locked region.

Return Value

Microsoft.DirectX.GraphicsStream
A GraphicsStream object that describes the locked region.

Remarks

For performance reasons, dirty regions are recorded only for level 0 of a texture. Dirty regions are automatically recorded when Texture.LockRectangle is called without NoDirtyUpdate or ReadOnly. For more information, see Device.UpdateTexture.

Exceptions

InvalidCallException

The method call is invalid. For example, a method's parameter might contain an invalid value.

See Also