Project::ActiveLayer

ActiveLayer

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

Description

It returns the active Layer object. The active Layer object corresponds to the active layer in the active window (graph, worksheet, matrix, or layout).

Syntax

Layer ActiveLayer( )

Parameters

Return

The active Layer object.

Examples

EX1

//with a new project, try new wks, new graph, new matrix, new layout and a new notes window
//when notes window is active, the ActiveLayer is not changed, so you should see the last active 
//layer when a notes window is active
void Project_ActiveLayer_ex1()
{
    Layer lay = Project.ActiveLayer();
    
    if(!lay)
    {
        out_str("the project is empty");
        return;
    }
    
    Worksheet wks = lay;// try casting into a worksheet
    if(wks)
    {
        printf("Active sheet has %d columns and %d rows\n", wks.GetNumCols(), wks.GetNumRows()); 
        return;
    }
    // if not a worksheet, try a graph
    GraphLayer glay = lay;
    if(glay)
    {
        printf("Active graph as %d data plots\n", glay.DataPlots.Count());
        return;
    }
    out_str("Active layer might be a matrix or a layout page");
}