htmlframe-canvas to unimimage

[ice]

Hi,

 

how can i put a unimhtmlframe-canvas to unimimage ?

 

Thanks

 

[Sherzod]

Hi,

 

Sorry, can you clarify your question ?!

Or show a snippet of code ?

 

Best regards.

[ice]

Hi,

i make a canvas in unimhtmlframe and make a signatue-script in javascript.

unimhtmlframe: <canvas id="signatur">

javascript:(signatur.js) by addjs. it work.

now i like to save it to database.

my idee is too put it in a unimimage and save it to a database.

[Sherzod]

Ok, now it is clear, thank you..

 

I will try to give a solution.

[zilav]

Like this one?

http://forums.unigui.com/index.php?/topic/2019-loading-unicanvas-and-native-canvas-to-db/

[ice]

Hi zllav,

thank you.

In Unim(Touch) in no canvas componet.

[Sherzod]

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.

[ice]

Hi Delphi Developer,

 

thank you very much.

 

1+*

[gerhardhziegler]

Sherzod is the best! I find the answers already before I can make my question!
Thanx to all