RtlUpcaseUnicodeString function (ntddk.h)
The RtlUpcaseUnicodeString routine converts a copy of the source string to uppercase and writes the converted string in the destination buffer.
Syntax
NTSYSAPI NTSTATUS RtlUpcaseUnicodeString(
[in, out] PUNICODE_STRING DestinationString,
[in] PCUNICODE_STRING SourceString,
[in] BOOLEAN AllocateDestinationString
);
Parameters
[in, out] DestinationString
Pointer to a caller-allocated buffer for the converted Unicode string.
[in] SourceString
Pointer to the source Unicode string to be converted to uppercase.
[in] AllocateDestinationString
Specifies if RtlUpcaseUnicodeString is to allocate the buffer space for the DestinationString. If it does, the buffer must be deallocated by calling RtlFreeUnicodeString.
Return value
If the operation succeeds, RtlUpcaseUnicodeString returns STATUS_SUCCESS. Otherwise, no storage was allocated, and no conversion was done.
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 (kernel mode); Ntdll.dll (user mode) |
| IRQL | <= APC_LEVEL |