2.2.4.24.20 Layer::LT_execute

LT_execute

1 Description
2 Syntax
3 Parameters
4 Return
5 Examples
6 Remark
7 See Also
8 Header to Include

Description

Execute LabTalk script with a specific layer as the active layer. This method is equivalent to the LabTalk commands "win -o" and "layer -o".

Syntax

BOOL LT_execute( LPCSTR lpcszstr, int wCntrl = 0 )

Parameters

lpcszstr: [input] LT command string
wCntrl: [input] Not used

Return

Examples

EX1

//Use LabTalk script to set X scale of the graph layers.
void Layer_LT_execute_ex1()
{
    // Call this function with a graph window active that has two layers
    //
    // Declare graph page object and point to active page in project
    GraphPage gpg;
    gpg.Create("origin");
    gpg.AddLayer();
    if( gpg.IsValid() )
    {
        // Declare graph layer objects and attach to layers 1 and 2
        GraphLayer gly1 = gpg.Layers( 0 );
        GraphLayer gly2 = gpg.Layers( 1 );
        if( gly1.IsValid() && gly2.IsValid() )
        {
            // Use LabTalk script to set X scale of layer 1 to -10 to 10
            string strScript;
            strScript.Format( "layer.x.from=%f; layer.x.to=%f;", -10.0, 10.0 );
            gly1.LT_execute( strScript );
            // Use LabTalk script to set X scale of layer 2 to 0 to 100
            strScript.Format( "layer.x.from=%f; layer.x.to=%f;", 0.0, 100.0 );
            gly2.LT_execute( strScript );
        }
        else
            out_str( "Graph page needs to have at least two layers" );            
    }
    else
        out_str( "Active page is not a graph page" );
}