|
acmFilterTagDetails
The acmFilterTagDetails function queries the ACM for details about a specific waveform-audio filter
tag.
MMRESULT acmFilterTagDetails(
HACMDRIVER had,
|
| LPACMFILTERTAGDETAILS paftd,
|
| DWORD fdwDetails
|
| );
|
|
Parameters
had
Handle of the ACM driver to query for waveform-audio filter tag details. If
this parameter is NULL, the ACM uses the details from the first suitable ACM
driver. An application must specify a valid HACMDRIVER or HACMDRIVERID identifier when using the ACM_FILTERTAGDETAILSF_INDEX query type. Driver
identifiers for disabled drivers are not allowed.
paftd
Address of the ACMFILTERTAGDETAILS structure that is to receive the filter tag details.
fdwDetails
Flags for getting the details. The following values are defined:
ACM_FILTERTAGDETAILSF_FILTERTAG
A filter tag was given in the dwFilterTag member of the ACMFILTERTAGDETAILS structure. The filter tag details will be returned in the structure pointed
to by paftd. If an application specifies an ACM driver handle for had, details on the filter tag will be returned for that driver. If an
application specifies NULL for had, the ACM finds the first acceptable driver to return the details.
ACM_FILTERTAGDETAILSF_INDEX
A filter tag index was given in the dwFilterTagIndex member of the ACMFILTERTAGDETAILS structure. The filter tag and details will be returned in the structure
pointed to by paftd. The index ranges from zero to one less than the cFilterTags member returned in the ACMDRIVERDETAILS structure for an ACM driver. An application must specify a driver handle for had when retrieving filter tag details with this flag.
ACM_FILTERTAGDETAILSF_LARGESTSIZE
Details on the filter tag with the largest filter size, in bytes, are to be
returned. The dwFilterTag member must either be WAVE_FILTER_UNKNOWN or the filter tag to find the
largest size for. If an application specifies an ACM driver handle for had, details on the largest filter tag will be returned for that driver. If an
application specifies NULL for had, the ACM finds an acceptable driver with the largest filter tag requested to
return the details.
Return Values
Returns zero if successful or an error otherwise. Possible error values
include the following:
ACMERR_NOTPOSSIBLE
| The details requested are not available.
| MMSYSERR_INVALFLAG
| At least one flag is invalid.
| MMSYSERR_INVALHANDLE
| The specified handle is invalid.
| MMSYSERR_INVALPARAM
| At least one parameter is invalid.
|
See Also
ACMDRIVERDETAILS
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