Please allow loading and playing an animated GIF in TImageEnView from an Internet URL (without having to use a TImageEnMView), for example:
ImageEnView1.IO.LoadFromURL('https://media.tenor.com/Sq7rY9NKKd4AAAAC/oscars-standing-ovation.gif');
Currently, I have to make cumbersome diversions to load and play an animated GIF from an Internet URL in TImageEnView:
procedure TForm1.LoadAndPlayGIFFromURL(const URL: string);
var
HTTPClient: System.Net.HttpClient.THTTPClient;
MemoryStream: TMemoryStream;
TempFileName: string;
begin
// Create a temporary file name with a .gif extension
TempFileName := TPath.GetTempFileName + '.gif';
CodeSite.Send('TForm1.LoadAndPlayGIFFromURL: TempFileName', TempFileName);
// Create the HTTP client and memory stream
HTTPClient := THTTPClient.Create;
MemoryStream := TMemoryStream.Create;
try
try
// Download the GIF data from the URL into the memory stream
HTTPClient.Get(URL, MemoryStream);
except
on E: Exception do
begin
ShowMessage('Error downloading GIF: ' + E.Message);
Exit;
end;
end;
// Save the GIF data to the temporary file
try
MemoryStream.Position := 0; // Reset the stream position
MemoryStream.SaveToFile(TempFileName);
except
on E: Exception do
begin
ShowMessage('Error saving GIF to file: ' + E.Message);
Exit;
end;
end;
// Loading the GIF directly from the stream does work, but the GIF cannot be animated:
//ImageEnView1.IO.LoadFromStreamGIF(MemoryStream);
finally
HTTPClient.Free;
MemoryStream.Free;
end;
var TempFileExists := FileExists(TempFileName);
CodeSite.Send('TForm1.LoadAndPlayGIFFromURL: TempFileExists', TempFileExists);
// Load the GIF from the temporary file into ImageEnView1
try
ImageEnView1.IO.LoadFromFileGIF(TempFileName);
except
on E: Exception do
begin
ShowMessage('Error loading GIF into ImageEnView1: ' + E.Message);
Exit;
end;
end;
// Start the animation
ImageEnView1.Playing := True;
// Save the temporary file name to the global variable for later cleanup
FTempGIFFileName := TempFileName;
end;
To make ImageEnView1.IO.LoadFromURL animation possible, TImageEnView should store the GIF frames in memory.
Then, it should be possible to save the GIF as an animated GIF file from the TImageEnView.