Edit

Share via


msacm.h header

This header is used by Windows Multimedia. For more information, see:

msacm.h contains the following programming interfaces:

Functions

 
acmDriverAdd

The acmDriverAdd function (msacm.h) adds a driver to the list of available ACM drivers. (acmDriverAddW)
acmDriverAddA

The acmDriverAdd function adds a driver to the list of available ACM drivers. (acmDriverAddA)
acmDriverAddW

The acmDriverAddW (Unicode) function (msacm.h) adds a driver to the list of available ACM drivers. (acmDriverAddW)
acmDriverClose

The acmDriverClose function closes a previously opened ACM driver instance. If the function is successful, the handle is invalidated.
acmDriverDetails

The acmDriverDetails function (msacm.h) queries a specified ACM driver to determine its capabilities. (acmDriverDetailsW)
acmDriverDetailsA

The acmDriverDetails function queries a specified ACM driver to determine its capabilities. (acmDriverDetailsA)
acmDriverDetailsW

The acmDriverDetails (Unicode) function queries a specified ACM driver to determine its capabilities. (acmDriverDetailsW)
acmDriverEnum

The acmDriverEnum function enumerates the available ACM drivers, continuing until there are no more drivers or the callback function returns FALSE.
acmDriverID

The acmDriverID function returns the handle of an ACM driver identifier associated with an open ACM driver instance or stream handle.
acmDriverMessage

The acmDriverMessage function sends a user-defined message to a given ACM driver instance.
acmDriverOpen

The acmDriverOpen function opens the specified ACM driver and returns a driver instance handle that can be used to communicate with the driver.
acmDriverPriority

The acmDriverPriority function modifies the priority and state of an ACM driver.
acmDriverRemove

The acmDriverRemove function removes an ACM driver from the list of available ACM drivers. The driver will be removed for the calling application only. If the driver is globally installed, other applications will still be able to use it.
acmFilterChoose

The acmFilterChoose function creates an ACM-defined dialog box that enables the user to select a waveform-audio filter.
acmFilterChooseA

The acmFilterChoose function creates an ACM-defined dialog box that enables the user to select a waveform-audio filter. (acmFilterChooseA)
acmFilterChooseW

The acmFilterChoose (Unicode) function creates an ACM-defined dialog box that enables the user to select a waveform-audio filter. (acmFilterChooseW)
acmFilterDetails

The acmFilterDetails function queries the ACM for details about a filter with a specific waveform-audio filter tag.
acmFilterDetailsA

The acmFilterDetails function queries the ACM for details about a filter with a specific waveform-audio filter tag. (acmFilterDetailsA)
acmFilterDetailsW

The acmFilterDetails (Unicode) function queries the ACM for details about a filter with a specific waveform-audio filter tag. (acmFilterDetailsW)
acmFilterEnum

The acmFilterEnum function enumerates waveform-audio filters available for a given filter tag from an ACM driver. This function continues enumerating until there are no more suitable filters for the filter tag or the callback function returns FALSE.
acmFilterEnumA

The acmFilterEnum function enumerates waveform-audio filters available for a given filter tag from an ACM driver. This function continues enumerating until there are no more suitable filters for the filter tag or the callback function returns FALSE. (acmFilterEnumA)
acmFilterEnumW

The acmFilterEnum (Unicode) function enumerates waveform-audio filters available for a given filter tag from an ACM driver. This function continues enumerating until there are no more suitable filters for the filter tag or the callback function returns FALSE. (acmFilterEnumW)
acmFilterTagDetails

The acmFilterTagDetails function queries the ACM for details about a specific waveform-audio filter tag.
acmFilterTagDetailsA

The acmFilterTagDetails function queries the ACM for details about a specific waveform-audio filter tag. (acmFilterTagDetailsA)
acmFilterTagDetailsW

The acmFilterTagDetails (Unicode) function queries the ACM for details about a specific waveform-audio filter tag. (acmFilterTagDetailsW)
acmFilterTagEnum

The acmFilterTagEnum function enumerates waveform-audio filter tags available from an ACM driver. This function continues enumerating until there are no more suitable filter tags or the callback function returns FALSE.
acmFilterTagEnumA

The acmFilterTagEnum function enumerates waveform-audio filter tags available from an ACM driver. This function continues enumerating until there are no more suitable filter tags or the callback function returns FALSE. (acmFilterTagEnumA)
acmFilterTagEnumW

The acmFilterTagEnum (Unicode) function enumerates waveform-audio filter tags available from an ACM driver. This function continues enumerating until there are no more suitable filter tags or the callback function returns FALSE. (acmFilterTagEnumW)
acmFormatChoose

The acmFormatChoose function creates an ACM-defined dialog box that enables the user to select a waveform-audio format.
acmFormatChooseA

The acmFormatChoose function creates an ACM-defined dialog box that enables the user to select a waveform-audio format. (acmFormatChooseA)
acmFormatChooseW

The acmFormatChoose (Unicode) function creates an ACM-defined dialog box that enables the user to select a waveform-audio format. (acmFormatChooseW)
acmFormatDetails

The acmFormatDetails function queries the ACM for format details for a specific waveform-audio format tag.
acmFormatDetailsA

The acmFormatDetails function queries the ACM for format details for a specific waveform-audio format tag. (acmFormatDetailsA)
acmFormatDetailsW

The acmFormatDetails (Unicode) function queries the ACM for format details for a specific waveform-audio format tag. (acmFormatDetailsW)
acmFormatEnum

The acmFormatEnum function enumerates waveform-audio formats available for a given format tag from an ACM driver. This function continues enumerating until there are no more suitable formats for the format tag or the callback function returns FALSE.
acmFormatEnumA

The acmFormatEnum function enumerates waveform-audio formats available for a given format tag from an ACM driver. This function continues enumerating until there are no more suitable formats for the format tag or the callback function returns FALSE. (acmFormatEnumA)
acmFormatEnumW

The acmFormatEnum (Unicode) function enumerates waveform-audio formats available for a given format tag from an ACM driver. This function continues enumerating until there are no more suitable formats for the format tag or the callback function returns FALSE. (acmFormatEnumW)
acmFormatSuggest

The acmFormatSuggest function queries the ACM or a specified ACM driver to suggest a destination format for the supplied source format.
acmFormatTagDetails

The acmFormatTagDetails function queries the ACM for details on a specific waveform-audio format tag.
acmFormatTagDetailsA

The acmFormatTagDetails function queries the ACM for details on a specific waveform-audio format tag. (acmFormatTagDetailsA)
acmFormatTagDetailsW

The acmFormatTagDetails (Unicode) function queries the ACM for details on a specific waveform-audio format tag. (acmFormatTagDetailsW)
acmFormatTagEnum

The acmFormatTagEnum function enumerates waveform-audio format tags available from an ACM driver. This function continues enumerating until there are no more suitable format tags or the callback function returns FALSE.
acmFormatTagEnumA

The acmFormatTagEnum function enumerates waveform-audio format tags available from an ACM driver. This function continues enumerating until there are no more suitable format tags or the callback function returns FALSE. (acmFormatTagEnumA)
acmFormatTagEnumW

The acmFormatTagEnum (Unicode) function enumerates waveform-audio format tags available from an ACM driver. This function continues enumerating until there are no more suitable format tags or the callback function returns FALSE. (acmFormatTagEnumW)
acmGetVersion

The acmGetVersion function returns the version number of the ACM.
acmMetrics

The acmMetrics function returns various metrics for the ACM or related ACM objects.
acmStreamClose

The acmStreamClose function closes an ACM conversion stream. If the function is successful, the handle is invalidated.
acmStreamConvert

The acmStreamConvert function requests the ACM to perform a conversion on the specified conversion stream. A conversion may be synchronous or asynchronous, depending on how the stream was opened.
acmStreamMessage

The acmStreamMessage function sends a driver-specific message to an ACM driver.
acmStreamOpen

The acmStreamOpen function opens an ACM conversion stream. Conversion streams are used to convert data from one specified audio format to another.
acmStreamPrepareHeader

The acmStreamPrepareHeader function prepares an ACMSTREAMHEADER structure for an ACM stream conversion.
acmStreamReset

The acmStreamReset function stops conversions for a given ACM stream. All pending buffers are marked as done and returned to the application.
acmStreamSize

The acmStreamSize function returns a recommended size for a source or destination buffer on an ACM stream.
acmStreamUnprepareHeader

The acmStreamUnprepareHeader function cleans up the preparation performed by the acmStreamPrepareHeader function for an ACM stream.

Callback functions

 
ACMDRIVERENUMCB

The acmDriverEnumCallback function specifies a callback function used with the acmDriverEnum function. The acmDriverEnumCallback name is a placeholder for an application-defined function name.
ACMDRIVERPROC

The acmDriverProc function specifies a callback function used with the ACM driver.
ACMFILTERCHOOSEHOOKPROC

The acmFilterChooseHookProc function specifies a user-defined function that hooks the acmFilterChoose dialog box.
ACMFILTERENUMCB

The ACMFILTERENUMCB callback function specifies a callback function used with the acmFilterEnum function.
ACMFILTERENUMCBA

The acmFilterEnumCallback function specifies a callback function used with the acmFilterEnum function. The acmFilterEnumCallback name is a placeholder for an application-defined function name. (ACMFILTERENUMCBA)
ACMFILTERENUMCBW

The ACMFILTERENUMCBW (Unicode) callback function specifies a callback function used with the acmFilterEnum function.
ACMFILTERTAGENUMCB

The ACMFILTERTAGENUMCB callback function specifies a callback function used with the acmFilterTagEnum function.
ACMFILTERTAGENUMCBA

The acmFilterTagEnumCallback function specifies a callback function used with the acmFilterTagEnum function. The acmFilterTagEnumCallback function name is a placeholder for an application-defined function name. (ACMFILTERTAGENUMCBA)
ACMFILTERTAGENUMCBW

The ACMFILTERTAGENUMCBW (Unicode) callback function specifies a callback function used with the acmFilterTagEnum function.
ACMFORMATCHOOSEHOOKPROC

The acmFormatChooseHookProc function specifies a user-defined function that hooks the acmFormatChoose dialog box. The acmFormatChooseHookProc name is a placeholder for an application-defined name.
ACMFORMATENUMCB

The ACMFORMATENUMCB callback function specifies a callback function used with the acmFormatEnum function.
ACMFORMATENUMCBA

The acmFormatEnumCallback function specifies a callback function used with the acmFormatEnum function. The acmFormatEnumCallback name is a placeholder for the application-defined function name. (ACMFORMATENUMCBA)
ACMFORMATENUMCBW

The ACMFORMATENUMCBW (Unicode) callback function specifies a callback function used with the acmFormatEnum function.
ACMFORMATTAGENUMCB

The ACMFORMATTAGENUMCB callback function specifies a callback function used with the acmFormatTagEnum function.
ACMFORMATTAGENUMCBA

The acmFormatTagEnumCallback function specifies a callback function used with the acmFormatTagEnum function. The acmFormatTagEnumCallback name is a placeholder for an application-defined function name. (ACMFORMATTAGENUMCBA)
ACMFORMATTAGENUMCBW

The ACMFORMATTAGENUMCBW (Unicode) callback function specifies a callback function used with the acmFormatTagEnum function.

Structures

 
ACMDRIVERDETAILS

The ACMDRIVERDETAILS structure describes the features of an ACM driver.
ACMFILTERCHOOSE

The ACMFILTERCHOOSE structure contains information the ACM uses to initialize the system-defined waveform-audio filter selection dialog box.
ACMFILTERDETAILS

The ACMFILTERDETAILS structure details a waveform-audio filter for a specific filter tag for an ACM driver.
ACMFILTERTAGDETAILS

The ACMFILTERTAGDETAILS structure details a waveform-audio filter tag for an ACM filter driver.
ACMFORMATCHOOSE

The ACMFORMATCHOOSE structure contains information the ACM uses to initialize the system-defined waveform-audio format selection dialog box.
ACMFORMATDETAILS

The ACMFORMATDETAILS structure details a waveform-audio format for a specific format tag for an ACM driver.
ACMFORMATTAGDETAILS

The ACMFORMATTAGDETAILS structure details a waveform-audio format tag for an ACM driver.
ACMSTREAMHEADER

The ACMSTREAMHEADER structure defines the header used to identify an ACM conversion source and destination buffer pair for a conversion stream.