KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q174523: BUG: BMP Turns Black on a Disable Button under NT 4.0

Article: Q174523
Product(s): Microsoft FoxPro
Version(s): WINDOWS:3.0,3.0b,5.0,5.0a,6.0
Operating System(s): 
Keyword(s): kbvfp kbvfp300 kbvfp500 kbvfp600
Last Modified: 11-DEC-1999

-------------------------------------------------------------------------------
The information in this article applies to:

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

SYMPTOMS
========

In Visual FoxPro version 3.0x and version 5.0x, some of the bitmaps will turn
black instead of dim when the button is disabled.

RESOLUTION
==========

Use Microsoft Paint or any image utility to open up the bitmap file and re- save
the file to monochrome type instead of color.

If you re-save the bitmap to a different file name, you need to re-load the
Picture property with the newly saved bitmap in order for the newly saved bitmap
to take in effect.

However, if you save the bitmap back to the same file name in Visual FoxPro
version 5.0x, perform the following steps:

1. Unload the bitmap from the Picture property of the object.

2. In the Command window, issue the following command:

        CLEAR RESOURCE [bitmap filename include the full path]
        * For example,  CLEAR RESOURCE C:\VFP5.0\TEST.BMP

3. Reload the bitmap to the Picture property of the object again.

In Visual FoxPro version 3.0x, one must re-start Visual FoxPro for the newly
saved bitmap to take in effect in the object.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article.

MORE INFORMATION
================

This problem does not happen in Windows 95. This problem is pertaining only to
Windows NT 4.0.

Steps to Reproduce Behavior
---------------------------

1. Create a form with two command buttons.

2. Select the picture property of the first command button and use the Save.bmp
  file in the \Samples\Graphics\Bmps\Offctlbr\Small\Color folder. In Visual
  FoxPro 6.0, the files are located under \Microsoft Visual
  Studio\Common\Graphics\Bitmaps\OffCtlBr\Small\Color

3. Put the following code in the Click event of the second button:

        Thisform.Command1.Enabled = !Thisform.Command1.Enabled

4. Save and run the form.

NOTE: Click on the second command button to disable the first command button. The
bitmap on the first command button turns black instead of dim.

Additional query words:

======================================================================
Keywords          : kbvfp kbvfp300 kbvfp500 kbvfp600 
Technology        : kbVFPsearch kbAudDeveloper kbVFP300 kbVFP300b kbVFP500 kbVFP600 kbVFP500a
Version           : WINDOWS:3.0,3.0b,5.0,5.0a,6.0
Issue type        : kbprb

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.