Article: Q131301
Product(s): Microsoft FoxPro
Version(s): WINDOWS:3.0
Operating System(s):
Keyword(s): kbcode
Last Modified: 15-FEB-2000
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The information in this article applies to:
- Microsoft Visual FoxPro for Windows, version 3.0
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SYMPTOMS
========
Pressing the ESC key before pressing the ENTER key when the insertion point is
in a text box, clears the content of the text box. However, doing the same thing
in a combo box does not produce the same behavior.
CAUSE
=====
The ESC key is seen as a cancel operation for a text box object. In the combo
box object, the ESC key is a terminator for the drop-down list only.
WORKAROUND
==========
In the text box object, it is possible to use the Keypress event to trap for the
ESC key. If the ESC key is pressed, a dialog box prompting the user to save the
data can be displayed. Please see the "Step-by-Step Example" section of this
article.
STATUS
======
This behavior is by design.
MORE INFORMATION
================
The following example creates a form with a text box, and traps for the ESC key
in the text box. When the escape key is pressed, a dialog is displayed, and if
the user answers No, the data is not cleared from the text box.
Step-by-Step Example
--------------------
1. Create a form.
2. Place a text box on the form.
3. Place the following code in the Keypress event handler:
* Visual FoxPro Header file. This file contains named constants for many
* Visual FoxPro functions
#INCLUDE "FOXPRO.H"
IF nkeycode = 27 && The escape key is pressed.
nresponse=MESSAGEBOX("Do you want to Cancel?", MB_YESNO)
IF nresponse=IDNO
NODEFAULT
ENDIF
ENDIF
4. Save and run the form. When the form displays, type something in the text
box. Then press the ESC key.
Additional query words: VFoxWin escape
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Keywords : kbcode
Technology : kbVFPsearch kbAudDeveloper kbVFP300
Version : WINDOWS:3.0
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