August 30, 2008 04:28am pdt

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Delphi cancel application close

Zone: Delphi Programming Language

Tags: delphi, cancel, close, application

Hello

In delphi I want to prompt the user when they have selected to exit the application to save changes, exit or cancel the exit procedure I have included it in the form close procedure the following code

procedure TMaintennance_Form.FormClose(Sender: TObject;
var Action: TCloseAction);
var
W: Word;
S: String;
begin
if Datamodule1.MyDataSource1.Dataset.Modified then
begin
W := MessageDlg('Changes have been made. Do you wish to save these changes?', mtInformation, [mbYes, mbNo, mbCancel], 0);
case W of
mrYes: begin
Datamodule1.MyDataSource1.DataSet.Post;
application.Terminate;
end;
mrNo: application.Terminate;
end;
end
else
application.Terminate;
end;

If the cancel option is selected the form is not visible but the delphi ide still shows the program as running so it has not terminated, essentially I want to have the user select cancel and be returned to the application and continue working, any suggestions

Thanks

Jake

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7.8

Question Stats

Zone: Programming

Question Asked By: elschott

Solution Provided By: MerijnB

Participating Experts: 4

Solution Grade: A

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Comment by tugrulhelvaci

You can use OnCloseQuery event handler, and CanClose := true or false.. OnCloseQuery will be call before OnClose event ;)

20080723-EE-VQP-34 / EE_QW_1_20070628