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How to upload images from UniCanvas and native HTML5 canvas to database (TClientDataSet). Native canvas is handy when you need to capture images from 3rd party javascript libraries (chart generators, webcam capture, etc). Canvas2DB.zip

Hi, Try.. exemplary implementation: 1. uses ... Soap.EncdDecd; 2. procedure TMainmForm.UnimButton1Click(Sender: TObject); begin UniSession.AddJS('ajaxRequest('+ UnimImage1.JSName +', "_img", ["_src="+document.getElementById("signatur").toDataURL()])'); end; 3. procedure TMainmForm.UnimImage1AjaxEvent(Sender: TComponent; EventName: string; Params: TUniStrings); var stream: TBytesStream; base64s: string; begin if EventName = '_img' then begin base64s := Params.Values['_src']; base64s := StringReplace(base64s, 'data:image/png;base64,', '', [rfReplaceAll]); stream := TBytesStream.Create(DecodeBase64(base64s)); try UnimImage1.LoadFromStream(stream); finally stream.Free; end; end; end; Best regards.