Win32TaskbarProgress

This article applies to Windows only.

See also: Multiplatform Programming Guide

About

This is unit which contains the class to control the progressbar over the Windows 7+ taskbar button. The demo looks like this:

Taskbar button progress can have several styles:

• none (inactive)
• green progress
• yellow progress (looks like paused state)
• red progress (looks like error state)
• marquee floating animation (progress value is ignored, it's constantly changing animation from min to max)

Author

Alexey Torgashin

License

MIT

Usage

In the form's OnShow (or maybe OnCreate) create the object like this:

uses
  win32taskbarprogress;

procedure TForm1.FormShow(Sender: TObject);
begin
  GlobalTaskbarProgress:= TWin7TaskProgressBar.Create;
end;

And then call properties of this object like this:

  //to change state: none, green, yellow, red, floating
  GlobalTaskbarProgress.Style:= TTaskBarProgressStyle(ComboBoxStyle.ItemIndex);
 
  //to change progress value 0 to 100
  GlobalTaskbarProgress.Progress:= Edit1.Value;

Author tried to initialise the object in the "initialization" part of win32taskbarprogress, but failed, maybe because the Application.Handle is not initialised so early.

Download

Unit file and demo project: https://github.com/Alexey-T/Win32TaskbarProgress