[How To] Get the pressed key

[Alexander Bulei]

To get the pressed key, you should follow the next steps:

• Add new BrowserParam to event:
  
  Example:
  
  delphi code

  procedure TIWForm1.IWAppFormCreate(Sender: TObject);
  begin
    with IWCGJQEdit1.JQEvents.OnKeyPress.BrowserParams.Add do
    begin
      ServerName:= 'keypressed';
      BrowserScript:= 'e.keyCode || e.which';
    end;
  end;

  
  
  Note: You can add the new BrowserParam in design-time or run-time.
  
  
• On KeyPress event, get the passed parameter:
  
  Example:
  
  delphi code

  procedure TIWForm1.IWCGJQEdit1JQEventsKeyPress(Sender: TObject; AParams: TStringList);
  begin
    WebApplication.ShowMessage(AParams.Values['keypressed']);
  end;

If you need to run the event in a certain key, you should use the Condition property.
This will prevent that on each key pressed, will call the event on server.

Example for "Enter":

delphi code

procedure TIWForm1.IWAppFormCreate(Sender: TObject);
begin
  with IWCGJQEdit1.JQEvents.OnKeyPress do
  begin
    Condition:= '((e.keyCode==13) || (e.which==13))'
  end;
end;

Best Regards.

[fateh78]

How to get ShiftState (Ctrl/Alt/Shift) ??

[Alexander Bulei]

Hi fateh78,

Use the same way (browserParameters) to send the states:

Code: Select all

BrowserScript:= 'e.shiftKey';
BrowserScript:= 'e.altKey';
BrowserScript:= 'e.ctrlKey';

Note: For each key estate, you must create BrowserParameter.

Best Regards.