| UID | title | description | ms.date | ms.keywords | targetos | req.assembly | req.construct-type | req.ddi-compliance | req.dll | req.header | req.idl | req.include-header | req.irql | req.kmdf-ver | req.lib | req.max-support | req.namespace | req.redist | req.target-min-winverclnt | req.target-min-winversvr | req.target-type | req.type-library | req.umdf-ver | req.unicode-ansi | f1_keywords | dev_langs | topic_type | api_type | api_location | api_name | ||||||||||||
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NF:winuser.IsCharLowerW |
IsCharLowerW |
The IsCharLowerW (Unicode) function determines whether a character is lowercase. (IsCharLowerW) |
08/02/2022 |
IsCharLowerW |
Windows |
function |
winuser.h |
Windows 10 Build 20348 |
Windows 10 Build 20348 |
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Determines whether a character is lowercase. This determination is based on the semantics of the language selected by the user during setup or through Control Panel.
Type: WCHAR
The character to be tested.
Type: BOOL
If the character is lowercase, the return value is nonzero.
If the character is not lowercase, the return value is zero. To get extended error information, call GetLastError.
Note
The winuser.h header defines IsCharLower as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.
Conceptual
Reference