ID3DXPRTBuffer::LockBuffer method
Locks a range of vertex or texel sample data and obtains a pointer to the location in buffer memory.
Syntax
HRESULT LockBuffer(
[in] UINT Start,
[in] UINT NumSamples,
[out] FLOAT **ppData
);
Parameters
-
Start [in]
-
Type: UINT
Index of the sample of vertex or texel data.
-
NumSamples [in]
-
Type: UINT
Number of vertices (or texels) sampled.
-
ppData [out]
-
Type: FLOAT**
Pointer to the location in memory where the Start sample begins. The memory layout of the buffer data is:
float fData[NumberSamples][NumberChannels][NumberCoefficients]
Return value
Type: HRESULT
If the method succeeds, the return value is S_OK. If the method fails, the following value will be returned:
Remarks
Requirements
| Requirement | Value |
|---|---|
| Header |
|
| Library |
|
See also