IMDSPDevice::GetType (deprecated)
.gif) |
This is preliminary documentation and subject to change.
This topic documents a feature of the Windows Media Device Manager SDK. We recommend that you migrate your application to use the Windows Portable Devices API. For more information, see the Windows Portable Devices SDK.
The GetType method retrieves device type information.
Syntax
HRESULT GetType(
DWORD* pdwType
);
Parameters
pdwType
[out] Pointer to a DWORD that receives the type attributes of the device. The following table shows the types received.
| Device type | Description |
| WMDM_DEVICE_TYPE_PLAYBACK | The media device supports audio playback. |
| WMDM_DEVICE_TYPE_RECORD | The media device supports audio recording. |
| WMDM_DEVICE_TYPE_DECODE | The media device supports audio format decoding. |
| WMDM_DEVICE_TYPE_ENCODE | The media device supports audio format encoding. |
| WMDM_DEVICE_TYPE_STORAGE | The media device has on-board storage for media files. |
| WMDM_DEVICE_TYPE_SDMI | The media device is SDMI compliant. |
| WMDM_DEVICE_TYPE_NONSDMI | The media device is not SDMI compliant. |
| WMDM_DEVICE_TYPE_VIRTUAL | The media device is not a physical device. |
| WMDM_DEVICE_TYPE_NONREENTRANT | The media device must synchronize access to the service provider services. |
| WMDM_DEVICE_TYPE_FILELISTRESYNC | The media device allows the file list to be resynchronized. |
| WMDM_DEVICE_TYPE_VIEW_PREF_METADATAVIEW | The media device prefers metadata views while its storages are enumerated. |
Return Values
The method returns an HRESULT. All the interface methods in Windows Media Device Manager can return any of the following classes of error codes:
- Standard COM error codes
- Windows error codes converted to HRESULT values
- Windows Media Device Manager error codes
For an extenstive list of possible error codes, see Error Codes.
Possible values include, but are not limited to, those in the following table.
| Return code | Description |
| E_INVALIDARG | The pdwType parameter is an invalid or NULL pointer. |
| E_FAIL | An unspecified error occurred. |
Remarks
This method must be implemented. It must not return WMDM_E_NOTSUPPORTED or E_NOTIMPL. For more information, see Mandatory and Optional Interfaces.
Requirements
Header: Defined in mswmdm.h.
Library: mssachlp.lib
See Also