void show_plot_histogram(int nColIndex = 1)
{
	Worksheet wks = Project.ActiveLayer();
	if( !wks )
	{
		MessageBox(NULL, "Please keep worksheet active!", "Error");
		return;	
	}
	
	GraphPage gp;
	gp.Create("HIST");
	GraphLayer gl = gp.Layers();
	
	Curve cv(wks, nColIndex); 
	if( gl.AddPlot(cv, IDM_PLOT_HISTOGRAM_TYPE) >= 0)
	{
		gl.Rescale();
	}
	
	get_bin();//get bin data and put into one hidden worksheet
}

void get_bin()
{
	string 	strLTCmd = "get %C -nhwc A;	win -o %A {win -h 1;};";
	LT_execute(strLTCmd);
}