 Important: |
|---|
| This is retired content. This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist. |
This control code retrieves device data.
Parameters
- hDevice
- Handle to the HID class device.
- dwIoControlCode
- Specifies this code.
- lpInBuffer
- Pointer to a DWORDcontaining the ID of a previously acquired device.
- nInBufferSize
- Specifies the length of the input buffer.
- lpOutBuffer
- Pointer to an output buffer in the format specified when the device was acquired.
- nOutBufferSize
- Specifies the length of the output buffer.
- lpBytesReturned
- Specifies the total number of bytes returned.
- lpOverlapped
- NULL.
Remarks
The input buffer contains a DWORDthat is the ID of a previously acquired device. This control code should cause the device data, in the format specified when the device was acquired, to be written into the output buffer. The output buffer length should be set to the number of bytes written, that is, the lesser of the format size or the output buffer size.
Requirements
Runs on Versions Defined in Include Link to Windows CE OS 1.0 and later Note This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.
Last updated on Tuesday, July 13, 2004