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IWMDMDevice::GetManufacturer

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The GetManufacturer method retrieves the name of the manufacturer of the device.

Syntax

HRESULT GetManufacturer(LPWSTRpwszName,UINTnMaxChars);

Parameters

pwszName

[out]  Pointer to a wide-character, null-terminated string specifying the manufacturer's name. The buffer must be allocated and released by the caller.

nMaxChars

[in]  Integer specifying the maximum number of characters that can be copied to pwszName, including the termination character.

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
S_OK The method succeeded.
E_INVALIDARG The pwszName parameter is an invalid or NULL pointer.
WMDM_E_NOTSUPPORTED The device does not have a manufacturer's name.
WMDM_E_BUFFERTOOSMALL The buffer specified is too small for the return string. Check nMaxChars for the required buffer size.
E_FAIL An unspecified error occurred.

Example Code

The following C++ code retrieves the device manufacturer.

// Print the device manufacturer.
const UINT MAX_CHARS = 100;
rWCHAR manufacturer[MAX_CHARS];
hr = pIWMDMDevice->GetManufacturer((LPWSTR)&manufacturer, MAX_CHARS);
if (hr == S_OK)
    // TODO: Display the manufacturer string.

Requirements

Header: Defined in mswmdm.h.

Library: mssachlp.lib

See Also