Hi All,
I have written following code, but waveInOpen API call gives me error no 32.
Can anyone help me to solve this?
Public Delegate Function callback(ByVal hw As Integer, ByVal uMsg As
Integer, ByVal wParam As Integer, ByVal lParam As Integer) As Integer
Public Const CALLBACK_FUNCTI ON = &H30000
Structure WAVEFORMAT
Dim wFormatTag As Integer
Dim nChannels As Integer
Dim nSamplesPerSec As Integer
Dim nAvgBytesPerSec As Integer
Dim nBlockAlign As Integer
Dim wBitsPerSample As Integer
Dim cbSize As Integer
End Structure
Declare Function waveInOpen Lib "winmm.dll" (ByRef lphWaveIn As IntPtr, _
ByVal uDeviceID As Integer, ByRef lpFormat As WAVEFORMAT, _
ByVal dwCallback As callback, ByVal dwInstance As Integer, _
ByVal dwFlags As Integer) As Integer
Dim Wfmt As WAVEFORMAT
Dim WHdr As WAVEHDR
Dim intWaveIn As IntPtr
Dim intDevID As Integer = 0
Dim intRet As Integer
With Wfmt
..wFormatTag = 1
..nChannels = 1
..nBlockAlign = 1
..nSamplesPerSe c = 8000
..nAvgBytesPerS ec = 8000
..wBitsPerSampl e = 8
..cbSize = 0
End With
Dim Buffer(2048) As Byte
Dim Handle As GCHandle = GCHandle.Alloc( Buffer, GCHandleType.Pi nned)
Dim ptrBuffer As IntPtr = Handle.AddrOfPi nnedObject
intRet = waveInOpen(intW aveIn, intDevID, Wfmt, AddressOf WaveInProc, 0,
CALLBACK_FUNCTI ON)
intRet comes as 32.
Hopes kind help from you.
Thanks & Regards.
Sakharam Phapale
4  4752 
I'm not sure if you've tried looking up what that error means - but here's
where you can look up the error messages for the error codes: http://msdn.microsoft.com/library/de...es__0-499_.asp
error 32 is a sharing violation - so you might want to check whether the
file is opened already by some other process or something like that. I
haven't taken a look at your code but just wanted to make sure you had
looked into the error. If you've already done that then I'll probably go
through the code :)
hope that helps..
Imran.
"Sakharam Phapale" <sp******@annet site.com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. .. Hi All,
I have written following code, but waveInOpen API call gives me error no
32. Can anyone help me to solve this?
Public Delegate Function callback(ByVal hw As Integer, ByVal uMsg As
Integer, ByVal wParam As Integer, ByVal lParam As Integer) As Integer
Public Const CALLBACK_FUNCTI ON = &H30000
Structure WAVEFORMAT
Dim wFormatTag As Integer
Dim nChannels As Integer
Dim nSamplesPerSec As Integer
Dim nAvgBytesPerSec As Integer
Dim nBlockAlign As Integer
Dim wBitsPerSample As Integer
Dim cbSize As Integer
End Structure
Declare Function waveInOpen Lib "winmm.dll" (ByRef lphWaveIn As IntPtr, _
ByVal uDeviceID As Integer, ByRef lpFormat As WAVEFORMAT, _
ByVal dwCallback As callback, ByVal dwInstance As Integer, _
ByVal dwFlags As Integer) As Integer
Dim Wfmt As WAVEFORMAT
Dim WHdr As WAVEHDR
Dim intWaveIn As IntPtr
Dim intDevID As Integer = 0
Dim intRet As Integer
With Wfmt
.wFormatTag = 1
.nChannels = 1
.nBlockAlign = 1
.nSamplesPerSec = 8000
.nAvgBytesPerSe c = 8000
.wBitsPerSample = 8
.cbSize = 0
End With
Dim Buffer(2048) As Byte
Dim Handle As GCHandle = GCHandle.Alloc( Buffer, GCHandleType.Pi nned)
Dim ptrBuffer As IntPtr = Handle.AddrOfPi nnedObject
intRet = waveInOpen(intW aveIn, intDevID, Wfmt, AddressOf WaveInProc, 0,
CALLBACK_FUNCTI ON)
intRet comes as 32.
Hopes kind help from you.
Thanks & Regards.
Sakharam Phapale
Hi Imran,
Thanks for your reply, but I am not using any file.
I used this function for retrieving wave in device handle.
and this error is related to WAVEFORMAT, and here in code it is right one.
Thanks and Regards
Sakharam Phapale
"Imran Koradia" <no****@microso ft.com> wrote in message
news:uX******** ******@TK2MSFTN GP15.phx.gbl... I'm not sure if you've tried looking up what that error means - but here's
where you can look up the error messages for the error codes:
http://msdn.microsoft.com/library/de...es__0-499_.asp
error 32 is a sharing violation - so you might want to check whether the
file is opened already by some other process or something like that. I
haven't taken a look at your code but just wanted to make sure you had
looked into the error. If you've already done that then I'll probably go
through the code :)
hope that helps..
Imran.
"Sakharam Phapale" <sp******@annet site.com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. .. Hi All,
I have written following code, but waveInOpen API call gives me error no
32. Can anyone help me to solve this?
Public Delegate Function callback(ByVal hw As Integer, ByVal uMsg As
Integer, ByVal wParam As Integer, ByVal lParam As Integer) As Integer
Public Const CALLBACK_FUNCTI ON = &H30000
Structure WAVEFORMAT
Dim wFormatTag As Integer
Dim nChannels As Integer
Dim nSamplesPerSec As Integer
Dim nAvgBytesPerSec As Integer
Dim nBlockAlign As Integer
Dim wBitsPerSample As Integer
Dim cbSize As Integer
End Structure
Declare Function waveInOpen Lib "winmm.dll" (ByRef lphWaveIn As IntPtr,
_
ByVal uDeviceID As Integer, ByRef lpFormat As WAVEFORMAT, _
ByVal dwCallback As callback, ByVal dwInstance As Integer, _
ByVal dwFlags As Integer) As Integer
Dim Wfmt As WAVEFORMAT
Dim WHdr As WAVEHDR
Dim intWaveIn As IntPtr
Dim intDevID As Integer = 0
Dim intRet As Integer
With Wfmt
.wFormatTag = 1
.nChannels = 1
.nBlockAlign = 1
.nSamplesPerSec = 8000
.nAvgBytesPerSe c = 8000
.wBitsPerSample = 8
.cbSize = 0
End With
Dim Buffer(2048) As Byte
Dim Handle As GCHandle = GCHandle.Alloc( Buffer, GCHandleType.Pi nned)
Dim ptrBuffer As IntPtr = Handle.AddrOfPi nnedObject
intRet = waveInOpen(intW aveIn, intDevID, Wfmt, AddressOf WaveInProc, 0,
CALLBACK_FUNCTI ON)
intRet comes as 32.
Hopes kind help from you.
Thanks & Regards.
Sakharam Phapale
my apologies - I was looking up the wrong error codes. This one is in
MMsytem.h and it translates to an unsupported waveform-audio format. I'll
look into it. In the meantime, maybe someone else here can come up with a
solution..
Imran.
"Sakharam Phapale" <sp******@annet site.com> wrote in message
news:eo******** ******@TK2MSFTN GP14.phx.gbl... Hi Imran,
Thanks for your reply, but I am not using any file.
I used this function for retrieving wave in device handle.
and this error is related to WAVEFORMAT, and here in code it is right one.
Thanks and Regards
Sakharam Phapale
"Imran Koradia" <no****@microso ft.com> wrote in message
news:uX******** ******@TK2MSFTN GP15.phx.gbl... I'm not sure if you've tried looking up what that error means - but
here's where you can look up the error messages for the error codes:
http://msdn.microsoft.com/library/de...es__0-499_.asp
error 32 is a sharing violation - so you might want to check whether the
file is opened already by some other process or something like that. I
haven't taken a look at your code but just wanted to make sure you had
looked into the error. If you've already done that then I'll probably go
through the code :)
hope that helps..
Imran.
"Sakharam Phapale" <sp******@annet site.com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. .. Hi All,
I have written following code, but waveInOpen API call gives me error
no 32. Can anyone help me to solve this?
Public Delegate Function callback(ByVal hw As Integer, ByVal uMsg As
Integer, ByVal wParam As Integer, ByVal lParam As Integer) As Integer
Public Const CALLBACK_FUNCTI ON = &H30000
Structure WAVEFORMAT
Dim wFormatTag As Integer
Dim nChannels As Integer
Dim nSamplesPerSec As Integer
Dim nAvgBytesPerSec As Integer
Dim nBlockAlign As Integer
Dim wBitsPerSample As Integer
Dim cbSize As Integer
End Structure
Declare Function waveInOpen Lib "winmm.dll" (ByRef lphWaveIn As
IntPtr, _
ByVal uDeviceID As Integer, ByRef lpFormat As WAVEFORMAT, _
ByVal dwCallback As callback, ByVal dwInstance As Integer, _
ByVal dwFlags As Integer) As Integer
Dim Wfmt As WAVEFORMAT
Dim WHdr As WAVEHDR
Dim intWaveIn As IntPtr
Dim intDevID As Integer = 0
Dim intRet As Integer
With Wfmt
.wFormatTag = 1
.nChannels = 1
.nBlockAlign = 1
.nSamplesPerSec = 8000
.nAvgBytesPerSe c = 8000
.wBitsPerSample = 8
.cbSize = 0
End With
Dim Buffer(2048) As Byte
Dim Handle As GCHandle = GCHandle.Alloc( Buffer, GCHandleType.Pi nned)
Dim ptrBuffer As IntPtr = Handle.AddrOfPi nnedObject
intRet = waveInOpen(intW aveIn, intDevID, Wfmt, AddressOf WaveInProc,
0, CALLBACK_FUNCTI ON)
intRet comes as 32.
Hopes kind help from you.
Thanks & Regards.
Sakharam Phapale
looks like your structure needs to be modified a bit: Structure WAVEFORMAT
Dim wFormatTag As Integer
Dim nChannels As Integer
Dim nSamplesPerSec As Integer
Dim nAvgBytesPerSec As Integer
Dim nBlockAlign As Integer
Dim wBitsPerSample As Integer
Dim cbSize As Integer
End Structure
Structure WAVEFORMAT
Dim wFormatTag As Short
Dim nChannels As Short
Dim nSamplesPerSec As Integer
Dim nAvgBytesPerSec As Integer
Dim nBlockAlign As Short
Dim wBitsPerSample As Short
Dim cbSize As Short
End Structure
remember - DWORD converts to Integer (32-bit) and WORD converts to
Short(16-bit).
hope that helps..
Imran. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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