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Wrapper Library for Windows MIDI API

, 28 Jan 2008 MIT
A small library encapsulating the Windows MIDI API
MIDIDeviceDemo.exe
MIDIDevDemo v2
MIDIDevDemo v2.clw
MIDIDevDemo v2.dsp
MIDIDevDemo v2.dsw
MIDIDevDemo v2.ncb
MIDIDevDemo v2.opt
MIDIDevDemo v2.plg
res
MIDIDevDemo v2.ico
MIDIDeviceDemo.zip
MIDIWrapperSrc.zip
MIDIWrapper Source
MIDIDevDemo v2.clw
MIDIDevDemo v2.dsp
MIDIDevDemo v2.dsw
MIDIDevDemo v2.ico
MIDIWrapper_Source
MIDIWrapper Source
// MIDIDevsDlg.cpp : implementation file
//

#include "stdafx.h"
#include "MIDIDevDemo v2.h"
#include "MIDIDevsDlg.h"
#include "MIDIOutDevice.h"
#include "MIDIInDevice.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CMIDIDevsDlg dialog


CMIDIDevsDlg::CMIDIDevsDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMIDIDevsDlg::IDD, pParent),
    m_OutDevId(0),
    m_InDevId(0),
    m_OutChanged(false),
    m_InChanged(false)
{
	//{{AFX_DATA_INIT(CMIDIDevsDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
}


void CMIDIDevsDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMIDIDevsDlg)
	DDX_Control(pDX, IDC_MIDI_OUT_DEVS, m_OutDevsCombo);
	DDX_Control(pDX, IDC_MIDI_IN_DEVS, m_InDevsCombo);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CMIDIDevsDlg, CDialog)
	//{{AFX_MSG_MAP(CMIDIDevsDlg)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMIDIDevsDlg message handlers

BOOL CMIDIDevsDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();

    //
    // Initialize output device combo box with the names of all of the 
    // MIDI output devices available
    //
	
    UINT i;
	MIDIOUTCAPS OutCaps;
    for(i = 0; i < midi::CMIDIOutDevice::GetNumDevs(); i++)
    {
        midi::CMIDIOutDevice::GetDevCaps(i, OutCaps);
        m_OutDevsCombo.AddString(OutCaps.szPname);
    }

    if(midi::CMIDIOutDevice::GetNumDevs() > 0)
    {
        m_OutDevsCombo.SetCurSel(m_OutDevId);
    }

    //
    // Initialize input device combo box with the names of all of the
    // MIDI input devices available on this system
    //

    MIDIINCAPS InCaps;
    for(i = 0; i < midi::CMIDIInDevice::GetNumDevs(); i++)
    {
        midi::CMIDIInDevice::GetDevCaps(i, InCaps);
        m_InDevsCombo.AddString(InCaps.szPname);
    }

    if(midi::CMIDIInDevice::GetNumDevs() > 0)
    {
        m_InDevsCombo.SetCurSel(m_InDevId);
    }
	
	return TRUE;  
}


// Client clicked OK
void CMIDIDevsDlg::OnOK() 
{
    //
    // Check to see if the client changed the selection for either the
    // MIDI input or output devices. If so, indicate that a new 
    // selection has been made
    //

    if(m_OutDevsCombo.GetCount() > 0)
    {
        if(m_OutDevId != m_OutDevsCombo.GetCurSel())
        {
	        m_OutDevId = m_OutDevsCombo.GetCurSel();
            m_OutChanged = true;
        }
    }

    if(m_InDevsCombo.GetCount() > 0)
    {
        if(m_InDevId != m_InDevsCombo.GetCurSel())
        {
            m_InDevId = m_InDevsCombo.GetCurSel();
            m_InChanged = true;
        }
    }
	
	CDialog::OnOK();
}

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License

This article, along with any associated source code and files, is licensed under The MIT License

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About the Author

Leslie Sanford
United States United States
Aside from dabbling in BASIC on his old Atari 1040ST years ago, Leslie's programming experience didn't really begin until he discovered the Internet in the late 90s. There he found a treasure trove of information about two of his favorite interests: MIDI and sound synthesis.

After spending a good deal of time calculating formulas he found on the Internet for creating new sounds by hand, he decided that an easier way would be to program the computer to do the work for him. This led him to learn C. He discovered that beyond using programming as a tool for synthesizing sound, he loved programming in and of itself.

Eventually he taught himself C++ and C#, and along the way he immersed himself in the ideas of object oriented programming. Like many of us, he gotten bitten by the design patterns bug and a copy of GOF is never far from his hands.

Now his primary interest is in creating a complete MIDI toolkit using the C# language. He hopes to create something that will become an indispensable tool for those wanting to write MIDI applications for the .NET framework.

Besides programming, his other interests are photography and playing his Les Paul guitars.

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