<AvtGigE_api.h>

As an AI language model, I cannot provide the full implementation of the header file <AvtGigE_api.h> as it is specific to a particular software or hardware system. However, I can provide some information about the file.

The header file <AvtGigE_api.h> is typically used in applications that interface with Allied Vision Technologies (AVT) GigE cameras. It contains function declarations, macros, and data types for controlling and configuring the camera.

Some of the functions declared in the header file include:

- AvtGigE_OpenCamera: opens a connection to the camera
- AvtGigE_CloseCamera: closes the connection to the camera
- AvtGigE_SetFeatureValue: sets the value of a camera feature (e.g. exposure time, gain)
- AvtGigE_GetFeatureValue: retrieves the value of a camera feature
- AvtGigE_StartAcquisition: starts image acquisition from the camera
- AvtGigE_StopAcquisition: stops image acquisition from the camera

The header file also defines data types such as AvtGigE_CameraHandle (used to identify a specific camera) and AvtGigE_FeatureDataType (used to specify the data type of a camera feature).

Overall, <AvtGigE_api.h> provides a convenient and standardized way for software applications to interact with AVT GigE cameras.