PeakMeter Control

There are two versions of this control depending on whether you are using MFC or .NET. The new .NET version offers more features.
To use in MFC application, you can subclass a STATIC control or you can create it directly with Create().

// define a member variable in your header file
CPeakMeterCtrl m_PeakMeter1;

// in your .cpp, use DataExchange to subclass
void CPeakMeterDlg::DoDataExchange(CDataExchange* pDX)
{
    CDialog::DoDataExchange(pDX);
    //{{AFX_DATA_MAP(CPeakMeterDlg)
    DDX_Control(pDX, IDC_PMC_HORZ, m_PeakMeter1);
    //}}AFX_DATA_MAP
}
      

    // Create this control with create
    m_PeakMeter2.Create(WS_CHILD|WS_VISIBLE, rc, this, IDC_PMC_VERT);
    // note: call SetMeterStyle to change meter style
    m_PeakMeter2.SetMeterStyle(PMS_VERTICAL);
    m_PeakMeter2.SetMeterBands(10, 15);
    m_PeakMeter2.Start(1000/20); // 20 fps
 

Using PeakMeter in .NET

You can use .NET version of this control in WinForms applications. Just add it to your toolbox and drag and drop it to your WinForm canvas. Here's a summary of the properties for this control

PeakMeterControl Properties

Property	Description
MeterStyle	Show Meter bands in Horizontal (PMS_Horizontal) or Vertical (PMS_Vertical)
ShowGrid	Show meter background grid
ColoredGrid	Show meter backgroung grid using color schemes
GridColor	Background grid color (when ColoredGrid property is false)
ColorNormal	Low range color
ColorNormalBack	Low range color Background (ColoredGrid=1)
ColorMedium	Medium range color
ColorMediumBack	Medium range color Background (ColoredGrid=1)
ColorHigh	High range color
ColorHighBack	High range color Background (ColoredGrid=1)
BandsCount	Number of bands
LEDCount	Number of LED per bands (when 1, band is smooth)
FalloffSpeed	Falloff effect speed (1=fast, 10=normal, 100=slow)
FalloffEffect	Enable falloff effect, call Start() to run
FalloffColor	Falloff line color

PeakMeterControl Methods

Name	Description
bool Start(int delay)	Start animation (delay in ms). Can be called from non-UI thread.
bool Stop()	Stop animation. Can be called from non-UI thread.
void SetMeterBands(int bands, int led)	Set meter bands properties and number of LED in one call
void SetRange(int min, int med, int max)	Change meter control default range
bool SetData(int[] values, int offset, int size)	Set peak meter data. Can be called from non-UI thread.