RtlUpperString function (ntddk.h)
The RtlUpperString routine copies the given SourceString to the DestinationString buffer, converting it to uppercase.
Syntax
NTSYSAPI VOID RtlUpperString(
[in, out] PSTRING DestinationString,
[in] const STRING *SourceString
);
Parameters
[in, out] DestinationString
Pointer to the buffer for the converted destination string.
[in] SourceString
Pointer to the source string to be converted to uppercase.
Return value
None
Remarks
The MaximumLength and Buffer members of DestinationString are not modified by this routine.
The number of bytes copied from SourceString is either the Length of SourceString or the MaximumLength of DestinationString, whichever is smaller.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available starting with Windows 2000. |
| Target Platform | Universal |
| Header | ntddk.h (include Ntddk.h) |
| Library | NtosKrnl.lib |
| DLL | NtosKrnl.exe |
| IRQL | <=APC_LEVEL |