midiInGetDevCaps function
The midiInGetDevCaps function determines the capabilities of a specified MIDI input device.
Syntax
MMRESULT midiInGetDevCaps(
UINT_PTR uDeviceID,
LPMIDIINCAPS lpMidiInCaps,
UINT cbMidiInCaps
);
Parameters
uDeviceID
Identifier of the MIDI input device. The device identifier varies from zero to one less than the number of devices present. This parameter can also be a properly cast device handle.lpMidiInCaps
Pointer to a MIDIINCAPS structure that is filled with information about the capabilities of the device.cbMidiInCaps
Size, in bytes, of the MIDIINCAPS structure. Only cbMidiInCaps bytes (or less) of information is copied to the location pointed to by lpMidiInCaps. If cbMidiInCaps is zero, nothing is copied, and the function returns MMSYSERR_NOERROR.
Return value
Returns MMSYSERR_NOERROR if successful or an error otherwise. Possible error values include the following.
| Return code | Description |
|---|---|
| MMSYSERR_BADDEVICEID | The specified device identifier is out of range. |
| MMSYSERR_INVALPARAM | The specified pointer or structure is invalid. |
| MMSYSERR_NODRIVER | The driver is not installed. |
| MMSYSERR_NOMEM | The system is unable to allocate or lock memory. |
Remarks
To determine the number of MIDI input devices present on the system, use the midiInGetNumDevs function.
Requirements
Minimum supported client |
Windows 2000 Professional [desktop apps only] |
Minimum supported server |
Windows 2000 Server [desktop apps only] |
Header |
Mmsystem.h (include Windows.h) |
Library |
Winmm.lib |
DLL |
Winmm.dll |
Unicode and ANSI names |
midiInGetDevCapsW (Unicode) and midiInGetDevCapsA (ANSI) |