DhtmlControl::CallJavaScript

1 Version
2 Description
3 Syntax
4 Parameters
5 Return
6 Examples
7 Remark
8 See Also
9 header to Included

Version

Minimum Origin Version Required: Origin 2017 SR0

Description

Invoke JavaScript function by name.

Syntax

BOOL CallJavaScript( LPCTSTR lpcszFunc )

Parameters

lpcszFunc: [input] The name of the JavaScript function

Return

Returns TRUE on success, FALSE on failure.

Examples

JavaScript:

<script>
        function LineMove() {
                var XValue = document.getElementById("X");
                XValue.value = window.external.ExtCall("GetXValue");
        }
</script>

Labtalk:

line_move($(this.X))

OriginC:

class LTcallJSDlg: public HTMLDlg
{
public:
        void LineMove(double dVal)
        {
                m_dXValue = dVal;
                m_dhtml.CallJavaScript("LineMove");
        }
        double GetXValue()
        {
                return m_dXValue;
        }
}
BEGIN_DISPATCH_MAP(LTcallJSDlg, HTMLDlg)
        DISP_FUNCTION(LTcallJSDlg, GetXValue, VTS_I4, VTS_VOID)
END_DISPATCH_MAP

static LTcallJSDlg* s_pDlg = NULL;

void LTcallJSDlgHTML()
{
        LTcallJSDlg dlg;
        s_pDlg = &dlg;
        dlg.DoModalEx(GetWindow());
        s_pDlg = NULL;
}

void line_move(double dVal)
{
        if ( s_pDlg )
        {
                s_pDlg->LineMove(dVal);
        }
}