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3 lut 2011 · A slightly simpler solution, if you use simple embedded forms. Only the main form has to do something: 1. Add a 'embedded form' close method to the main form. 2. Set the embedded's form OnClose handler to this close method.
16 lut 2020 · A short introduction on using Forms in Lazarus. Contents. 1What is a Form? 2The First GUI Application. 3The Use of a Second Form. 3.1Difference between Show and ShowModal. 4Two Forms That Can Call Each Other. 5Passing Variables to Other Forms. 6Other Form-Related Subjects. 6.1Use Another Form as the Main Form.
In form events OnShow, OnActivate, OnHide you can check Application.Terminated to skip long work. OnClose, OnCloseQuery, OnDeactivated will be skipped.
The button click should just call Close (for the form) which, if it's the main form, will close the application. That will in turn fire the OnClose event: if you re-Click the button there you are caught in an infinite loop, so don't do that.
11 mar 2024 · TPopupNotifier generates an OnClose event when the form is closed, whether by you or the user, this is useful if you wish something to happen as soon as the form is closed. Clicking anywhere on the form has the same close effect as clicking the close-button itself.
The OnClose event can be used to control what happens to the form when it is closed. The CloseAction parameter of the OnClose event handler determines what happens
2 gru 2019 · Forms. Typical event order for forms is: OnCreate => OnShow => OnActivate => OnPaint => OnResize => OnPaint => ... OnCloseQuery => OnClose => OnDeactivate => OnHide => OnDestroy Form.OnCreate. This is the equivalent to the class constructor in forms. Use this to initialize form-level variables etc. The form is not yet shown at this time. Form ...
