TdxSplashFormBase.BeginUpdate Method

Postpones all form redraw operations that reflect setting and visual element changes until an EndUpdate procedure call.

Declaration

procedure BeginUpdate;

Remarks

Every time a form or visual element setting is changed, the Splash Form is redrawn to reflect the change. Enclose multiple form/visual element setting changes between BeginUpdate and EndUpdate procedure calls to avoid excessive redraw operations.

BeginUpdate/EndUpdate and Batch Changes

A BeginUpdate procedure call disables notifications and postpones all changes until an EndUpdate call. A subsequent EndUpdate call does the following:

• Re-enables change notifications and corresponding redraw operations
• Applies all changes made after a BeginUpdate call
• Sends corresponding notifications in a batch
• Redraws the visible Splash Form

Note

Ensure that every BeginUpdate procedure call is followed by an EndUpdate call, even if an exception occurs. Otherwise, the form remains frozen and unresponsive.