Argox PT-9130 - Manual (Page 16)

PT-90 Mobile Computer SDK Programming Manual 9
Audio Related Functions
Audio_GetVolume
To query the current audio volume level setting.
DWORD Audio_GetVolume
{
LPDWORD lpdwVolume
}
Parameters
lpdwVolume
[out] The current volume level setting.
Returned Values
If this action succeeds, the returned value is E_FUNC_SUCCEED . If this action fails, the returned value is
E_FUNC_ERROR .
Example
DWORD dwResult, dwVolume;
dwResult = Audio_GetVolume(&dwVolume);
if(dwResult != E_FUNC_SUCCEED)
AfxMessageBox(_T("Audio_GetVolume fail"));
else
{
CString strTemp;
strTemp.Format(_T("Volume: %d"),dwVolume);
AfxMessageBox(strTemp);
}
Requirements
OS Versions: Windows CE 6.0 or beyond.
Header: sysapiax.h
Link Library: sysapiax.lib
Link DLL: sysapiax.dll
Device: PT90