PlayYoutube Videos (sort of working code included)

RobYost · September 29, 2017

I have a procedure that works at playing Youtube videos. But it only works if you are on the same computer as the UniGUI program that is running.l

I put it on my server and when on the server it works, but if I try from across the internet it does not.

Is there a port that needs to be opened?

(Video is a TUniHTMLFrame)

procedure TfrmModal.ShowVideo(VideoName: string; VideoWidth: Integer; VideoHeight: Integer);
var
  sql: TSQL;
begin

  frmModal.Height := VideoHeight + GetSystemMetrics(SM_CYCAPTION);
  frmModal.Width  := VideoWidth;

  sql.Add('<html>');
  sql.Add('<head>');
  sql.Add('</style>');
  sql.Add('    <style type="text/css">.recentcomments a{display:inline !important;padding:0 !important;margin:0 !important;}</style>');
  sql.Add('</head>');
  sql.Add('<body>');
  sql.Add('  <object width="' + itoa(VideoWidth) + '" height="' + itoa(VideoHeight) + '">');
  sql.Add('  <param name="movie" value="http://www.youtube.com/v/fqNHsmGCEDI&hl=en_US&feature=player_embedded&version=3">');
  sql.Add('  </param><param name="allowFullScreen" value="true">');
  sql.Add('  </param><param name="allowScriptAccess" value="always">');
  sql.Add('  </param><embed src="http://www.youtube.com/v/' + VideoName +
    '&hl=en_US&feature=player_embedded&version=3" type="application/x-shockwave-flash" sql.Add('');allowfullscreen="true" allowScriptAccess="always">');
  sql.Add('  </embed></object>');
  sql.Add('</body>');
  sql.Add('</html>');

  Video.Align   := alClient;
  Video.Enabled := True;
  Video.HTML.Clear;
  Video.HTML.Add(sql.Text);

end;

RobYost · September 29, 2017

I just noticed I used a Type that I wrote:

TSQL

I created it so I wouldn't have to create and free TStringList, and the text property is useful when debugging 'Copy Value' does not have any CR LF in it so I can paste it to SQL Server.

You can replace the TSQL with TStringList (but you have to create it)

I will include the TSQL Source if anyone is interested in it. Let me know if you see a problem with it.

type
  TSQL = record
  private
    FItems: array of string;
    FText : String;

    function GetCount: integer; inline;
    function GetText: String; inline;

    function GetItem(index: integer): string;
    procedure SetItem(index: integer; const Value: string);

  public
    property Text : string read GetText;
    property Count: integer read GetCount;

    function Add(const line: string): integer;
    procedure Clear;
    function IndexOf(const s: string): integer;

    property Items[index: integer]: string read GetItem write SetItem; default;
  end;

// =============================================================================
function TSQL.Add(const line: string): integer;
begin
  SetLength(FItems, Count + 1);
  FItems[Count - 1] := line;
  Result            := Count - 1;
  FText             := Text;
end;

// =============================================================================
function TSQL.GetCount: integer;
begin
  Result := length(FItems);
end;

// =============================================================================
function TSQL.GetText: String;
var
  i: integer;
begin
  for i    := 0 to Count - 1 do
    Result := Result + ' ' + FItems[i];
end;

// =============================================================================
procedure TSQL.Clear;
begin
  SetLength(FItems, 0);
end;

// =============================================================================
function TSQL.GetItem(index: integer): string;
begin
  Result := FItems[index];
end;

// =============================================================================
procedure TSQL.SetItem(index: integer; const Value: string);
begin
  FItems[index] := Value;
end;

// =============================================================================
function TSQL.IndexOf(const s: string): integer;
var
  k: integer;
begin
  Result := -1;
  for k  := 0 to Count - 1 do
  begin
    if FItems[k] = s then
    begin
      Result := k;
      break;
    end;
  end;
end;

Sherzod · September 29, 2017

Hi,

Maybe other stations do not have a plugin ?..

And YouTube <object> and <embed> were deprecated from January 2015. You should migrate your videos to use <iframe> instead.

https://www.w3schools.com/html/html_youtube.asp

Best regards,

RobYost · October 5, 2017

I determined that it worked if I used HTTP but not HTTPS.

BUT after not getting it to work, I made a small test program to show to Delphi Developer. In the test program I changed it from <embed> to <iframe> like he said and it worked.

So he gave me the answer all along and I didn't try it because I could get it to work on my computer.

Once again Delphi Developer came through with the answer. Just trust him.

linehammer · May 30, 2019

Upload the video to YouTube
Take a note of the video id
Define an <iframe> element in your web page
Let the src attribute point to the video URL
Use the width and height attributes to specify the dimension of the player
Add any other parameters to the URL

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PlayYoutube Videos (sort of working code included)

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