This package allows you to lock and unlock the user interface in a simple way.

• [Optional] For ease I recommend using the Boss for installation
  • Boss - Dependency Manager for Delphi

boss install github.com/viniciussanchez/blockui-vcl

Add the following folders to your project, in Project > Options > Resource Compiler > Directories and Conditionals > Include file search path

../blockui-vcl/src

You need to use VCL.BlockUI.Intf and VCL.BlockUI

uses VCL.BlockUI.Intf, VCL.BlockUI;

var
  BlockUI: IBlockUI;
begin
  BlockUI := TBlockUI.Create;
  >> Your code
end;

In the Create method you can tell which component you want to block:

BlockUI := TBlockUI.Create(Your component);

If not reported any component, the default is Application.MainForm