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PrtBuffer.LockBuffer(Int32,Int32) Method (Microsoft.DirectX.Direct3D)

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Locks a range of vertex or texel sample data and returns a GraphicsStream object containing the locked buffer memory.

Definition

Visual Basic Public Function LockBuffer( _
    ByVal start As Integer, _
    ByVal numberSamples As Integer _
) As GraphicsStream
C# public GraphicsStream LockBuffer(
    int start,
    int numberSamples
);
C++ public:
GraphicsStream^ LockBuffer(
    int start,
    int numberSamples
);
JScript public function LockBuffer(
    start : int,
    numberSamples : int
) : GraphicsStream;

Parameters

start System.Int32
Starting index of the sample of vertex or texel data.
numberSamples System.Int32
Number of vertices (or texels) sampled.

Return Value

Microsoft.DirectX.GraphicsStream
Returns a GraphicsStream object containing the locked buffer memory.

Remarks

Exceptions

InvalidCallException

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

OutOfMemoryExceptionLeave Site

Microsoft Direct3D could not allocate sufficient memory to complete the call.