/// <summary>
/// Insert a symbol on a given page
/// </summary>
/// <param name="page">Page where the symbol be insert</param>
/// <param name="symbolLibraryName">Symbol library name</param>
/// <param name="symbolName">Symbol name</param>
/// <param name="symbolvariant">Symbol variant</param>
public void Insert(Page page, string symbolLibraryName, string symbolName, int symbolvariant)
{
page.LockObject();
SymbolLibrary symbolLibrary = new SymbolLibrary(page.Project, symbolLibraryName);
Symbol symbol = new Symbol(symbolLibrary, symbolName);
Function function = new Function(page.Project, symbol.Variants[symbolvariant]);
function.Location = new PointD(200, 150);
page.InsertSubPlacement(function);
function.Dispose();
}