waveOutOpen() problems

Hey Everyone,

I was just wondering if you could help me out. I am working with the Waveform Audio Interface, waveOutOpen() keeps returning the value 32 "the process cannot access the file because it is being used by another process".

The file is a .wav file that I have downloaded for specific use with this code, and so I can't understand how another process could be using it (yes I have read the old post from Incognito in March).

I was wondering if anybody else had experienced any similar difficulties? Any suggestions would be greatly appreciated

Thankyou and happy new year!

I'm reasonably certain that your error message with that function doesn't make sense. waveOutOpen(...) doesn't take a file handle or name at any point, given that it provides a "simple" interface to a sound card. Its parameters are:-

Code:

MMRESULT waveOutOpen(
LPHWAVEOUT     phwo,	//Pointer to where the device handle is returned
UINT_PTR       uDeviceID,	// ID of the device to open (WAVE_MAPPER unless you have a reason for being specific)
LPWAVEFORMATEX pwfx,	// Pointer to WAVEFORMATEX structure describing the output buffer format
DWORD_PTR      dwCallback,	// Pointer to callback function or window handle
DWORD_PTR      dwCallbackInstance,	// User-defined data to pass to callback
DWORD          fdwOpen	// Flags
);

Perhaps you have a different problem? Could you post some code?

I don't have access to my code just now... I gave up and left uni an hour ago

My code is a slimmed down version of the stuff microsoft have available for download in their tutorial .

The same error gets raised when I substitute my "wav of choice" for their test.wav in the Wave.cs. I have got a feeling that the error has got something to do with the different properties of the two wav files. test.wav being stereo and mine being mono etc, but I don't know how I would go about checking that. My wav is hrtbeat1.wav.

If you don't fancy trawling through all of that I will post my code up tomorrow when I get back into uni.

Thankyou!

Just to let you know I worked out the problem eventually... my wav file was in an unsupported format. Thanks for the suggestion.

Happy New Year!!