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IMSVidInputDevice::IsViewable method (segment.h)

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[The feature associated with this page, Microsoft TV Technologies, is a legacy feature. Microsoft strongly recommends that new code does not use this feature.]

The IsViewable method determines whether this device can view the specified tune request.

Currently this method is not implemented by any of the supported input devices.

Syntax

HRESULT IsViewable(
  [in]  VARIANT      *v,
  [out] VARIANT_BOOL *pfViewable
);

Parameters

[in] v

Specifies the tune request as a VARIANT type.

[out] pfViewable

Pointer to variable that receives one of the following values.

Value Description
VARIANT_TRUE The device can view this tune request.
VARIANT_FALSE The device cannot view this tune request.

Return value

Returns an HRESULT value. Possible values include the following.

Return code Description
S_OK
 Success.
E_NOTIMPL
 Not implemented.
E_POINTER
 NULL pointer argument.

Requirements

Requirement Value
Minimum supported client Windows�XP [desktop apps only]
Minimum supported server None supported
Target Platform Windows
Header segment.h (include Msvidctl.h)

See also

IMSVidInputDevice Interface