|
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.
MMRESULT acmFormatTagEnum(
HACMDRIVER had,
|
| LPACMFORMATTAGDETAILS paftd,
|
| ACMFORMATTAGENUMCB fnCallback,
|
| DWORD dwInstance,
|
| DWORD fdwEnum
|
| );
|
|
Parameters
had
Handle of the ACM driver to query for waveform-audio format tag details. If
this parameter is NULL, the ACM uses the details from the first suitable ACM
driver.
paftd
Address of the ACMFORMATTAGDETAILS structure that is to receive the format tag details passed to the function
specified in fnCallback. This structure must have the cbStruct member of the ACMFORMATTAGDETAILS structure initialized.
fnCallback
Procedure instance address of the application-defined callback function.
dwInstance
A 32-bit application-defined value that is passed to the callback function
along with ACM format tag details.
fdwEnum
Reserved; must be zero.
Return Values
Returns zero if successful or an error otherwise. Possible error values
include the following:
MMSYSERR_INVALFLAG
| At least one flag is invalid.
| MMSYSERR_INVALHANDLE
| The specified handle is invalid.
| MMSYSERR_INVALPARAM
| At least one parameter is invalid.
|
Remarks
This function will return MMSYSERR_NOERROR (zero) if no suitable ACM drivers
are installed. Moreover, the callback function will not be called.
See Also
ACMFORMATTAGDETAILS
Related Links
Software for Delphi and C++ Builder developers
Software for Visual Studio .NET developers
Software for Visual Basic 6 developers
Delphi Tips&Tricks
MegaDetailed.NET
TMS Scripter Studio Pro components for Delphi/C++Builder
More Online Helps
Win32 Programmer's Reference (win32.hlp)
OLE Programmer's Reference (ole.hlp)
Microsoft Windows Pen API Programmer's Reference (penapi.hlp)
Microsoft Windows Sockets 2 Reference (sock2.hlp)
Microsoft Windows Telephony API (TAPI) Programmer's Reference (tapi.hlp)
Unix Manual Pages
|
