(twf1.exe:27349): Mono-WARNING **: DllImport unable to load library 'lib/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon.so: cannot open shared object file: No such file or directory'. prog: using System; using System.ComponentModel; using System.Drawing; using System.Windows.Forms; class Test: System.Windows.Forms.Form { [STAThread ()] public static void Main (string [] args) { System.Windows.Forms.Application.Run (new Test ()); } Test () { Label l1 = new Label (); l1.UseMnemonic = true; l1.Text = "Click &Me"; l1.Location = new Point (15,15); l1.Font = new Font ("Times New Roman", 10); this.Text = "Test app"; this.Controls.Add (l1); } }