PRB: Accented Characters in Filename Controls Lose Accents (90854)
The information in this article applies to:
- Microsoft Windows Software Development Kit (SDK) 3.1
This article was previously published under Q90854
3.00 3.10
WINDOWS
kbprg kbprb
SYMPTOMS
In an application for the Microsoft Windows graphical environment
that uses a combo box with the CBS_OEMCONVERT style or an edit
control with the ES_OEMCONVERT style, the user enters a character
with an accent mark, and the accent is lost.
CAUSE
The OEMCONVERT control styles convert all input as follows:
- Convert lowercase letters to uppercase letters with the AnsiUpper function.
- Convert all characters from the ANSI character set to the
installed OEM character set with the AnsiToOem function.
- Convert the appropriate characters back to lowercase letters
with the AnsiLower function.
Because the OEM character set installed in most computers (code
page 437) does not include representation for the capital letters
with accent marks, the accent marks are lost in this conversion
process. This occurs in all versions of Windows, including those
designed for use outside the United States.
RESOLUTION
Unicode specifies a unified character set that can represent every
active language and many dead languages. Windows NT incorporates
support for Unicode.
STATUS
This behavior is by design.
MORE INFORMATION
For further details on the cause of this problem, see the article by
Dr. William S. Hall "Adapt Your Program for Worldwide Use with Windows
Internationalization Support," starting on page 29 of the Nov-Dec 1991
Microsoft Systems Journal.
| Modification Type: | Minor | Last Reviewed: | 2/11/2005 |
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| Keywords: | kb16bitonly kbComboBox kbCtrl kbEditCtrl kbprb KB90854 |
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