SetThreadDescription.c

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#include "k32_vista.h"
#define NDEBUG
#include <debug.h>
 
#undef TRACE
#define TRACE DPRINT
 
/***********************************************************************
 *           SetThreadDescription   (kernelbase.@)
 */
HRESULT WINAPI DECLSPEC_HOTPATCH SetThreadDescription( HANDLE thread, PCWSTR description )
{
    THREAD_NAME_INFORMATION info;
    int length;
 
    TRACE( "(%p, %s)\n", thread, debugstr_w( description ));
 
    length = description ? lstrlenW( description ) * sizeof(WCHAR) : 0;
 
    if (length > USHRT_MAX)
        return HRESULT_FROM_NT(STATUS_INVALID_PARAMETER);
 
    info.ThreadName.Length = info.ThreadName.MaximumLength = length;
    info.ThreadName.Buffer = (WCHAR *)description;
 
    return HRESULT_FROM_NT(NtSetInformationThread( thread, ThreadNameInformation, &info, sizeof(info) ));
}