|
waveOutWrite
The waveOutWrite function sends a data block to the given waveform-audio output device.
MMRESULT waveOutWrite(
HWAVEOUT hwo,
|
| LPWAVEHDR pwh,
|
| UINT cbwh
|
| );
|
|
Parameters
hwo
Handle of the waveform-audio output device.
pwh
Address of a WAVEHDR structure containing information about the data block.
cbwh
Size, in bytes, of the WAVEHDR structure.
Return Values
Returns MMSYSERR_NOERROR if successful or an error otherwise. Possible error
values include the following:
MMSYSERR_INVALHANDLE
| Specified device handle is invalid.
| MMSYSERR_NODRIVER
| No device driver is present.
| MMSYSERR_NOMEM
| Unable to allocate or lock memory.
| WAVERR_UNPREPARED
| The data block pointed to by the pwh parameter hasn't been prepared.
|
Remarks
When the buffer is finished, the WHDR_DONE bit is set in the dwFlags member of the WAVEHDR structure.
The buffer must be prepared with the waveOutPrepareHeader function before it is passed to waveOutWrite. Unless the device is paused by calling the waveOutPause function, playback begins when the first data block is sent to the device.
See Also
WAVEHDR, waveOutPrepareHeader, waveOutPause
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
|
