IEWICEnumerateCodecs

Declaration

function IEWICEnumerateCodecs(ComponentTypes: IE_WICComponentType; Callback: TIEWICEnumerateCodecsCallBack; ForceRefresh: Boolean = False): Integer;

Description

Detects all the available WIC decoders and encoders on the system.
ComponentTypes must be either IE_WICDecoder or IE_WICEncoder.
Enable ForceRefresh if you want fresh codecs (e.g. after installing HEIF).

Result will be -1 if an error occurred, otherwise the number of codecs found.

Examples

// Declare our call-back event
procedure TForm1.EnumerateCodecsCallBack(const FriendlyName: WideString; const GUID: TGuid; const Extensions: WideString; const Version: WideString; const Author: WideString);
begin
  Memo1.Lines.Add( '[' + FriendlyName + ']' );
  Memo1.Lines.Add( 'Version: ' + Version );
  Memo1.Lines.Add( 'Author: ' + Author );
  Memo1.Lines.Add( 'Extensions: ' + Extensions );
  Memo1.Lines.Add( 'GUID: ' + GUIDToString( GUID ));
  Memo1.Lines.Add( '' );
end;

// Output list of WIC Decoders
procedure TForm1.btnListDecoders(Sender: TObject);
begin
  Memo1.Clear();
  IEWicEnumerateCodecs( IE_WICDecoder, EnumerateCodecsCallBack );
end;

// Output list of WIC Encoders
procedure TForm1.btnListEncoders(Sender: TObject);
begin
  Memo1.Clear();
  IEWicEnumerateCodecs( IE_WICEncoder, EnumerateCodecsCallBack );
end;

// Count only...
decoderCount := IEWicEnumerateCodecs( IE_WICDecoder, nil );

IEWICEnumerateCodecs