1e41f4b71Sopenharmony_ci# hid_ddk_api.h
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4e41f4b71Sopenharmony_ci## Overview
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6e41f4b71Sopenharmony_ciDeclares the HID DDK functions for accessing an input device from the host.
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8e41f4b71Sopenharmony_ciFile to include: <hid/hid_ddk_api.h>
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10e41f4b71Sopenharmony_ci**Since**: 11
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12e41f4b71Sopenharmony_ci**Related module**: [HID DDK](_hid_ddk.md)
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15e41f4b71Sopenharmony_ci## Summary
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18e41f4b71Sopenharmony_ci### Functions
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20e41f4b71Sopenharmony_ci| Name| Description| 
21e41f4b71Sopenharmony_ci| -------- | -------- |
22e41f4b71Sopenharmony_ci| [OH_Hid_CreateDevice](_hid_ddk.md#oh_hid_createdevice) ([Hid_Device](_hid___device.md) \*hidDevice, [Hid_EventProperties](_hid___event_properties.md) \*hidEventProperties) | Creates a device. | 
23e41f4b71Sopenharmony_ci| [OH_Hid_EmitEvent](_hid_ddk.md#oh_hid_emitevent) (int32_t deviceId, const [Hid_EmitItem](_hid___emit_item.md) items[], uint16_t length) | Sends an event list to a device. | 
24e41f4b71Sopenharmony_ci| [OH_Hid_DestroyDevice](_hid_ddk.md#oh_hid_destroydevice) (int32_t deviceId) | Destroys a device. | 
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