TdhEnumerateProvidersForDecodingSource function (tdh.h)

Článek
08/18/2023

Retrieves a list of providers that have registered a MOF class or manifest file on the computer.

Syntax

TDHSTATUS TdhEnumerateProvidersForDecodingSource(
            DECODING_SOURCE           filter,
  [out]     PROVIDER_ENUMERATION_INFO *buffer,
  [in, out] ULONG                     bufferSize,
  [out]     ULONG                     *bufferRequired
);

Parameters

filter

One or more values from DECODING_SOURCE enumeration.

[out] buffer

Array of providers that publicly define their events on the computer. For details, see the PROVIDER_ENUMERATION_INFO structure.

[in, out] bufferSize

Size, in bytes, of the pBuffer buffer. If the function succeeds, this parameter receives the size of the buffer used. If the buffer is too small, the function returns ERROR_INSUFFICIENT_BUFFER and sets this parameter to the required buffer size. If the buffer size is zero on input, no data is returned in the buffer and this parameter receives the required buffer size.

[out] bufferRequired

The buffer required.

Return value

Returns ERROR_SUCCESS if successful. Otherwise, this function returns one of the following return codes in addition to others.

Return code	Description
ERROR_INSUFFICIENT_BUFFER	The size of the pBuffer buffer is too small. Use the required buffer size set in pBufferSize to allocate a new buffer.
ERROR_INVALID_PARAMETER	One or more of the parameters is not valid.

Remarks

Use TdhEnumerateProviders to retrieve all providers that have registered on the computer.

Requirements

Requirement	Value
Minimum supported client	Windows 11 [desktop apps only]
Minimum supported server	Windows Server 2022 [desktop apps only]
Target Platform	Windows
Header	tdh.h

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