[amibroker] Increase and decrease a var with two GFX buttons.

["Reinsley" <reinsley@xxxxxxxx>]

Hello,

I would like to decrease Myparam of 0.25 on each clic inside the red button.

I complicated with static var but Myparam comes back to 5 as it is declared at the beginning of the formula.

How to decrease a var with a GFX button ?

To give an idea of what I want to do , once this point solved, my next step will be to increase of 0.25 the same Myparam with a Plus button to adjust a Fibonacci step. I will add Fibonacci code at the very end.

AB parameters windows lacks some ergonomics in real time.

I draw the buttons in the upper right side, after the bars, as quote marker will not be activate.

Thanks for the help

Best regards




// draw a red square + inside click

//SetChartOptions( 2, chartHideQuoteMarker );

Myparam = Param( "TheValue", 5, 0, 5, 0.25 );
StaticVarSet( "Myparamstat ", Myparam );

Myparam = StaticVarGet( "Myparamstat " );
_TRACE( "Myparamstat = " + Myparam );


function DrawButton( Text, x1, y1, x2, y2, BackColor )
{
    GfxSetOverlayMode( 0 );
    GfxSelectFont( "Tahoma", 12, 800 );
    GfxSelectPen( colorBlack );
    GfxSetBkMode( 1 );
    GfxSelectSolidBrush( BackColor );
    GfxSetBkColor( BackColor );
    GfxSetTextColor( 1 );
    GfxRectangle( x1, y1, x2, y2 );
    GfxDrawText( Text, x1, y1, x2, y2, 32 | 1 | 4 );
}

shift = 40;
XOffset  = StaticVarGet( "XOffset" );
YOffset  = StaticVarGet( "YOffset" );

pxchartwidth = Status( "pxchartwidth" );
XOffset  = pxchartwidth - shift ; // X1
YOffset  = 0;//Y1
SquareSide = 20;

X1m = XOffset  ;
X2m = Xoffset + SquareSide ;
Y1m = YOffset  ;
Y2m = yOffset + SquareSide ;

DrawButton( "-", Xoffset, yOffset, Xoffset + SquareSide , yOffset + SquareSide , colorRed );

LButtonTrigger	= GetCursorMouseButtons() == 9;
_TRACE( "LButtonTrigger = " + LButtonTrigger );

if ( LButtonTrigger )
{
    MousePx  = Nz( GetCursorXPosition( 1 ) );
    MousePy  = Nz( GetCursorYPosition( 1 ) );

    CursorInMinus = MousePx > X1m AND MousePx < X2m AND MousePy > Y1m AND MousePy < Y2m;
    _TRACE( "CursorInMinus = " + CursorInMinus );

    if ( CursorInMinus )
    {
        DrawButton( "-", Xoffset, yOffset, Xoffset + SquareSide , yOffset + SquareSide , colorYellow );
        Myparam = StaticVarGet( "Myparamstat " );
        Myparam = Myparam - 0.25;
        _TRACE( "Myparamstat2 = " + Myparam );
        RequestTimedRefresh( 1 );
    }
}








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