GetReadableLength

Result GetReadableLength(
     s32 * pSize
);

	Name	Description
out	pSize	Location where the data size is stored.

Returns the result of the operation.

Value	Description
Success	Process was successful. The return value's `IsSuccess` function returns `true` in this state.
`ResultNotOpened`	The function was executed while the MIDI device was in a closed state. Run the `nn::midi::CTR::Open` function to open the MIDI device.
`ResultBufferOverflow`	The internal buffer where MIDI data is temporarily stored is full. Run the `nn::midi::CTR::Reset` function. MIDI data received during this interval is discarded. If this error occurs, the `nn::midi::CTR::Read` function might be executing too infrequently.
A value other than the above	Unexpected error.

Gets the amount of data that has accumulated in the device's buffer.

`nn::midi::CTR::GetReadableLength` Function