PRB: READ EVENTS in Form's Init Causes the Form Not to Display

ID: Q177336

The information in this article applies to:

Microsoft Visual FoxPro for Windows, versions 3.0, 3.0b, 5.0, 5.0a, 6.0
Microsoft Visual FoxPro for Macintosh, version 3.0b

SYMPTOMS

A form does not display when you run the form.

CAUSE

If you issue a READ EVENTS in the Init or Load event, the form does not get a chance to display before going into the event loop.

RESOLUTION

Here are two resolutions:

Place the READ EVENTS command in a method other than Init or Load.

Use the ON KEY LABEL command to issue a CLEAR EVENTS. For example, place the following command in the Init event of the form:
```
      ON KEY LABEL ALT+X CLEAR EVENTS 
```

and In the Destroy event of the form place the following command:


      ON KEY LABEL ALT+X

Now, after you run the form, when program execution stops at the READ EVENTS, you can press the ALT+X keys to clear the READ EVENTS and continue with program execution.

STATUS

This behavior is by design.

MORE INFORMATION

Steps to Reproduce Behavior

Create and run a FoxPro program with the following code:


      frmForm=CREATEOBJECT('frmformTest')
      frmForm.SHOW

      DEFINE CLASS frmFormTest AS FORM
      VISIBLE=.T.
      WINDOWTYPE=1

      PROCEDURE INIT
      **Comment the following line to see form.
      READ EVENTS
      ENDPROC

      PROCEDURE CLICK
      CLEAR EVENTS
      ENDPROC
      ENDDEFINE

NOTE: If you issue READ EVENTS in an event or a method of a form, then you need to issue CLEAR EVENTS before the form can be closed.

Additional query words: read events clear event form disappear

Keywords : kbMAC kbVFp kbVFp300 kbVFp300b kbVFp500 kbVFp500a kbVFp600 FxprgClassoop
Version : MACINTOSH:3.0b; WINDOWS:3.0,3.0b,5.0,5.0a,6.0
Platform : MACINTOSH WINDOWS
Issue type : kbprb