Share via


How to: Set a Thread Name in Native Code

This topic applies to:

Edition

Visual Basic

C#

C++

Web Developer

Express

Topic does not apply Topic does not apply

Native only

Topic does not apply

Standard

Topic does not apply

Topic does not apply

Native only

Topic does not apply

Pro and Team

Topic does not apply

Topic applies

Native only

Topic does not apply

Table legend:

Topic applies

Applies

Topic does not apply

Does not apply

Topic applies but command hidden by default

Command or commands hidden by default.

To set a thread name in your program, use the SetThreadName function, as shown in the following code example.

Example

//
// Usage: SetThreadName (-1, "MainThread");
//
#include <windows.h>
const DWORD MS_VC_EXCEPTION=0x406D1388;

#pragma pack(push,8)
typedef struct tagTHREADNAME_INFO
{
   DWORD dwType; // Must be 0x1000.
   LPCSTR szName; // Pointer to name (in user addr space).
   DWORD dwThreadID; // Thread ID (-1=caller thread).
   DWORD dwFlags; // Reserved for future use, must be zero.
} THREADNAME_INFO;
#pragma pack(pop)

void SetThreadName( DWORD dwThreadID, char* threadName)
{
   THREADNAME_INFO info;
   info.dwType = 0x1000;
   info.szName = threadName;
   info.dwThreadID = dwThreadID;
   info.dwFlags = 0;

   __try
   {
      RaiseException( MS_VC_EXCEPTION, 0, sizeof(info)/sizeof(ULONG_PTR), (ULONG_PTR*)&info );
   }
   __except(EXCEPTION_EXECUTE_HANDLER)
   {
   }
}

See Also

Tasks

How to: Set a Thread Name in Managed Code

Concepts

Viewing Data in the Debugger

Other Resources

Debugging Multithreaded Applications