Microsoft DirectX 9.0 SDK Update (October 2004)

PatchMesh.LockVertexBuffer Method

Language:

Note: This documentation is preliminary and is subject to change.

Locks the vertex buffer.

Definition

Visual Basic .NET Public Function LockVertexBuffer( _
    ByVal flags As LockFlags _
) As GraphicsStream
C# public GraphicsStream LockVertexBuffer(
    LockFlags flags
);
Managed C++ public: GraphicsStream* LockVertexBuffer(
    LockFlags flags
);
JScript .NET public function LockVertexBuffer(
    flags : LockFlags
) : GraphicsStream;

Parameters

flags Microsoft.DirectX.Direct3D.LockFlags. Zero or more LockFlags that describe the type of lock to perform. For this method, the valid flags are Discard, NoDirtyUpdate, NoSystemLock, ReadOnly, and NoOverWrite. For a description of the flags, see LockFlags.

Return Value

Microsoft.DirectX.GraphicsStream . A GraphicsStream object that represents the locked vertex buffer.

Remarks

The vertex buffer is usually locked, written to, and then unlocked for reading.

Patch meshes use 16-bit index buffers.

Exceptions
InvalidCallException The method call is invalid. For example, a method's parameter might contain an invalid value.
OutOfMemoryException Leave Site Microsoft® Direct3D® could not allocate sufficient memory to complete the call.


© 2004 Microsoft Corporation. All rights reserved. Terms of use.

Feedback? Please provide us with your comments on this topic.
For more help, visit the DirectX Developer Center