WMEncoder.OnError

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The OnError event receives run-time error event notices.

Syntax

WMEncoder.OnError(hResult)

Parameters

hResult

[in] ** Long containing the error code. This can be one of the following values.

Value Number Description
NS_E_BAD_MARKIN 0xC00D1B58 The starting time must be greater than zero and less than the ending time.
NS_E_BAD_MARKOUT 0xC00D1B59 The ending time must be greater than the starting time and less than the file duration.
NS_E_VIDEODEVICE_BUSY 0xC00D1B64 The video capture device is in use and cannot be opened.
NS_E_VIDEODRIVER_UNSTABLE 0xC00D1B68 The video capture driver returned an unrecoverable error.
NS_E_VIDCAPSTARTFAILED 0xC00D1B69 The video capture device did not start.
NS_E_VIDCAPCREATEWINDOW 0xC00D1B6D The video capture window was not created.
NS_E_INVALIDCALL_WHILE_ARCHIVAL_RUNNING 0xC00D1B74 The specified operation is not allowed when the file is being archived.
NS_E_ARCHIVE_FILENAME_NOTSET 0xC00D1B79 The archive file name is not properly specified.
NS_E_INVALIDCALL_WHILE_ENCODER_STOPPED 0xC00D1B7F The specified operation is not allowed when the encoder engine is not running.
NS_E_INVALID_INPUTFPS 0xC00D1B81 Inverse telecine cannot be specified when the frame rate does not equal 30 frames per second.
NS_E_NO_DATAVIEW_SUPPORT 0xC00D1B82 Internal problems are preventing the preview or postview.
NS_E_CODEC_UNAVAILABLE 0xC00D1B83 One or more required codecs cannot be found.
NS_E_UNEXPECTED_DISPLAY_SETTINGS 0xC00D1B88 The display size or color setting has changed since the encoding session was defined.

Return Values

This event does not return a value.

Remarks

Use the OnError method to respond to run-time error event notices. The ErrorState method in the WMEncoder object provides another way to retrieve errors while the encoding process is running. If you are comparing hResult to a hexadecimal error code, eliminate the leading "Ox" from the hex value.

Example Code

Private Sub Encoder_OnError(ByVal hResult As Long)

    If Hex(hResult) = "C00D1B66" Then
        ' Process the error.
        ' OxC00D1B66 = NS_E_INVALIDCALL_WHILE_ENCODER_RUNNING
    End If

End Sub

Requirements

Reference: Windows Media Encoder

Library: wmenc.exe

See Also