[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index]

Reference for unit 'Forms' (#lcl)

TCustomForm.FormIsUpdating

Indicates if the BeginFormUpdate method has been called without a corresponding EndFormUpdate method call.

Declaration

Source position: forms.pp line 711

public function TCustomForm.FormIsUpdating: Boolean; override;

Returns True when the internal update counter for the form contains a positive non-zero value.

The method is used in TControl descendants to determine if the parent form for the control is already rendering changes to its content.

TCustomForm.BeginFormUpdate		Increments the form update counter, and disables auto-sizing on the initial update lock.
TCustomForm.EndFormUpdate		Decrements the form update counter, and re-enables auto-sizing on the form.
TControl.FormIsUpdating		True if the form is being updated.