(Windows only; GUI for .NET only)

The handle to one of the following ABL window widgets:

  • The shadow window associated with a .NET form that is used for parenting relationships between ABL windows and .NET forms. ABL creates a shadow window for every .NET form that you instantiate from the Progress.Windows.Form class.
  • An ABL window that is accessible from its associated Progress.Windows.FormProxy object. ABL creates an instance of this object for every ABL window that you create in a session that accesses .NET forms.

This property is used when mixing ABL windows and .NET forms in a single application.

Data type: HANDLE

Access: PUBLIC Read-only

Applies to: Progress.Windows.Form class, Progress.Windows.FormProxy class, Progress.Windows.IForm interface

The following example shows a class that creates and displays a .NET form and an ABL window, and parents the form to the window:

USING System.Windows.Forms.* FROM ASSEMBLY.
USING Progress.Windows.* FROM ASSEMBLY.

DEFINE VARIABLE win1  AS HANDLE NO-UNDO.
DEFINE VARIABLE form1 AS Progress.Windows.Form NO-UNDO.

/* Create a form */
form1      = NEW Progress.Windows.Form().
form1:TEXT = "Form1".
form1:Show().

/* Create a window */
CREATE WINDOW win1 ASSIGN
  TITLE        = "Win1"
  HEIGHT-CHARS = 5
  WIDTH-CHARS  = 35
  VISIBLE      = TRUE
  SENSITIVE    = TRUE.

/* Make the form the parent of the window */
win1:PARENT = form1:ProWinHandle.

WAIT-FOR Application:RUN( form1 ).

DELETE WIDGET win1.

For more information on using ABL windows along with .NET forms in your application, see Use .NET Classes in ABL Applications.