References ▼
#include "ILMDVRSource.h"
C Syntax |
HRESULT ILMDVRSource_ReadData(pILMDVRSource, startOffset, minSize, maxSize, dwUserData, pData, pSizeRead) |
C++ Syntax |
HRESULT ReadData(startOffset, minSize, maxSize, dwUserData, pData, pSizeRead) |
ILMDVRSource *pILMDVRSource; |
pointer to an interface |
double startOffset; |
data read starting offset |
long minSize; |
minimum size to read |
long maxSize; |
maximum size to read |
DWORD dwUserData; |
Reserved |
BYTE * pData; |
pointer to a block of memory data |
long * pSizeRead; |
pointer to data read size |
Reads the DVRSource data associated with the specified offset.
Parameter |
Description |
pILMDVRSource |
Pointer to an ILMDVRSource interface. |
startOffset |
A double value indicating the starting offset for the read operation. |
minSize |
A long value specifying the minimum size to read. |
maxSize |
A long value specifying the maximum size to read. |
dwUserData |
Reserved. |
pData |
A pointer to a block of memory that will receive the read data. |
pSizeRead |
Pointer to a long type that will receive the size of the read data. |
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. |
S_OK if successful; otherwise, returns a code indicating the reason for failure:
E_UNEXPECTED = Unexpected invalid file handle
LTMM_E_DVR_DISCARDED_DATA = Data has been discarded due to a restart.
LTMM_E_DVR_CORRUPT_STUB_FILE = Corrupted .LBL file.
Required DLLs and Libraries
ILMDVRSource For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Win32, x64
For a C example, refer to ILMDVRSource::ReadData Example For C
For a C++ example, refer to ILMDVRSource::ReadData Example For C++
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