ActiveX Controls and COM Components

All users can run forms containing ActiveX controls; however, your application cannot accomplish certain tasks if it is running under the run-time version of Visual FoxPro. Remember the following guidelines:

• Your application must be running under a full version of Visual FoxPro to change forms, classes, or subclasses that include ActiveX controls.

• Your application must be running under a full version of Visual FoxPro to add ActiveX controls to forms at run time. For example, the full version of Visual FoxPro is required to add the Listview control to a form by running the following code:

  PUBLIC frmOleNewForm frmOleNewForm = CREATEOBJECT("form") frmOleNewForm.Show frmOleNewForm.ScaleMode = 3 frmOleNewForm.Addobject("NewListview","OLEControl",; "MSComctlLib.ListViewCtrl")

  When a form is closed, controls added at run time are not saved.

• Your application can be running under either the run-time or full version of Visual FoxPro to add subclassed ActiveX controls to a form at run time. For example, you can define the RedListview subclass from the Listview class, and distribute the subclass in Olelib.vcx; all users can then add the RedListview control to a form by running the following code:

  PUBLIC frmOleNewForm frmOleNewForm = CREATEOBJECT("form") frmOleNewForm.Show frmOleNewForm.ScaleMode = 3 SET CLASSLIB TO CURR() + OLELIB.VCX frmOleNewForm.Addobject("NewListview","RedListview"