Article View: borland.public.cppbuilder.multimedia
Article #1337Mistake in help?
From: Mike
Date: Mon, 09 Apr 2001 22:13
Date: Mon, 09 Apr 2001 22:13
43 lines
1937 bytes
1937 bytes
Hi!
I read help about waveOutWrite and Builder doesn't compile it. Waht is
wrong?
[C++ Error] Unit1.cpp(39): E2034 Cannot convert 'waveformat_tag *' to
'const tWAVEFORMATEX *'
[C++ Error] Unit1.cpp(39): E2342 Type mismatch in parameter 'pwfx'
(wanted 'const tWAVEFORMATEX *', got 'waveformat_tag *')
===========================================
...
HWAVEOUT hWaveOut;
HGLOBAL hWaveHdr;
LPWAVEHDR lpWaveHdr;
HMMIO hmmio;
UINT wResult;
HANDLE hFormat;
WAVEFORMAT *pFormat;
DWORD dwDataSize;
// Open a waveform device for output using window callback.
if (waveOutOpen((LPHWAVEOUT)&hWaveOut, WAVE_MAPPER,
HERE!!!-> (LPWAVEFORMAT)pFormat,
(LONG)hwndApp, 0L, CALLBACK_WINDOW))
{
MessageBox(hwndApp,
"Failed to open waveform output device.",
NULL, MB_OK | MB_ICONEXCLAMATION);
LocalUnlock(hFormat);
LocalFree(hFormat);
mmioClose(hmmio, 0);
return;
}
...
===========================================
Mike
Technical Details
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