> ## Documentation Index
> Fetch the complete documentation index at: https://docs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# PIXBeginEvent

> PIXBeginEvent Function

Starts a user-defined event for a timing capture of CPU activity, to be displayed in the System Timing Capture feature of PIX.  Calls to `PIXBeginEvent` must have a corresponding call to [PIXEndEvent](https://docs.xbox.com/reference/tools/pix3/functions/pixendevent.md).  Both calls must be made from the same thread.

## Overload list

| Name | Description |
| - | - |
| [PIXBeginEvent (UINT64, PCSTR, ...)](https://docs.xbox.com/reference/tools/pix3/functions/pixbeginevent.md) | Starts a user-defined event for a timing capture of CPU activity, to be displayed in the System Timing Capture feature of PIX. |
| [PIXBeginEvent (UINT64, PCWSTR, ...)](https://docs.xbox.com/reference/tools/pix3/functions/pixbeginevent_2.md) | Starts a user-defined event for a timing capture of CPU activity, to be displayed in the System Timing Capture feature of PIX. |
| [PIXBeginEvent (void\*, UINT64, PCSTR, ...)](https://docs.xbox.com/reference/tools/pix3/functions/pixbeginevent_3.md) | Starts a user-defined event for a timing capture of CPU activity, to be displayed in the System Timing Capture feature of PIX. |
| [PIXBeginEvent (void\*, UINT64, PCWSTR, ...)](https://docs.xbox.com/reference/tools/pix3/functions/pixbeginevent_4.md) | Starts a user-defined event for a timing capture of CPU activity, to be displayed in the System Timing Capture feature of PIX. |
| [PIXBeginRetailEvent (void\*, UINT64, PCSTR, ...)](https://docs.xbox.com/reference/tools/pix3/functions/pixbeginretailevent.md) | Starts a user-defined retail event. |
| [PIXBeginRetailEvent (void\*, UINT64, PCWSTR, ...)](https://docs.xbox.com/reference/tools/pix3/functions/pixbeginretailevent_2.md) | Starts a user-defined retail event. |

## Conceptual documentation

* [ATG Systems Engagement Checklist](https://docs.xbox.com/build/atg-engagement/atg-systems-engagement.md)

## See also

[PIXEndEvent](https://docs.xbox.com/reference/tools/pix3/functions/pixendevent.md)\
[PIX3](https://docs.xbox.com/reference/tools/pix3/pix3_members.md)\
[PIX (NDA topic)](https://docs.xbox.com/tools/tools-console/pix/pix.md)


## Related topics

- [PIXBeginEvent(UINT64, PCWSTR, ...)](https://docs.xbox.com/reference/tools/pix3/functions/pixbeginevent_2.md)
- [PIXBeginEvent(UINT64, PCSTR, ...)](https://docs.xbox.com/reference/tools/pix3/functions/pixbeginevent.md)
- [PIXBeginEvent(void*, UINT64, PCWSTR, ...)](https://docs.xbox.com/reference/tools/pix3/functions/pixbeginevent_4.md)
- [PIXBeginEvent(void*, UINT64, PCSTR, ...)](https://docs.xbox.com/reference/tools/pix3/functions/pixbeginevent_3.md)
- [PIXBeginRetailEvent(void*, UINT64, PCSTR, ...)](https://docs.xbox.com/reference/tools/pix3/functions/pixbeginretailevent.md)