MessageDlg returns 0 before Dialog Yes/No button is clicked

[delphilearner]

Hi guys, my UniGuiDialog.MessageDlg always return 0 before any dialog button is clicked, and the number will not change after clicking yes/no button in the dialog. Not sure if it is a bug..

here is my code:

procedure TMainForm.UniButton3Click(Sender: TObject);
var
int: integer;
begin
    int := MessageDlg('ha', mtConfirmation, mbYesNo);
    UniEdit1.Text:= inttostr(int);
end;

 

[Sherzod]

Hello, 

Excuse me, did you start programming with UniGUI today?

[delphilearner]

Hello,

I just started delphi and unigui recently. What I am trying to do is very similar to this:

procedure TMainForm.UniButton6Click(Sender: TObject);
begin
  if MessageDlg('Dialog3', mtConfirmation, mbYesNo) = mrno then
  begin
    Abort;
  end;
end;

But since it will always turn a 0, it won't abort even the No button is clicked. That makes me confused. Thank you!

[Sherzod]

http://www.unigui.com/doc/online_help/synch-and-asynch-operations.htm

[Sherzod]

And please see related demos.

[delphilearner]

Ahh, thanks! This part of the documentation confused me with the '= mrNo' stuff.

http://www.unigui.com/doc/online_help/api/uniGUIDialogs_MessageDlg@string@TMsgDlgType@TMsgDlgButtons.html

[Sherzod]

9 hours ago, delphilearner said:

This part of the documentation confused me with the '= mrNo' stuff.

If I understand you correctly, then you need to use Synchronous Mode:

9 hours ago, Sherzod said:

http://www.unigui.com/doc/online_help/synch-and-asynch-operations.htm