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Locks the object's buffer to prevent access by any thread other than the calling thread.
#include "ltmm.h"
| Language | Syntax |
|---|---|
| C | HRESULT IltmmMemory_LockBuffer(pMem, pVal) |
| C++ | HRESULT LockBuffer(pVal) |
Pointer to an IltmmMemory interface.
Pointer to a variable to be updated with a VARIANT containing a SAFEARRAY reference to the locked buffer.
| Value | Meaning |
|---|---|
| S_OK | The function was successful. |
| <> S_OK | An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation. |
This function obtains a pointer to the buffer in the form of a SAFEARRAY embedded in a VARIANT.
Call IltmmMemory::Unlock to unlock the buffer when it is no longer being used.
Win32, x64.
| Language | Example |
|---|---|
| C | Use ltmmMemory for Memory Conversion |
| C++ | Use ltmmMemory for Memory Conversion |
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