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Showing autohiding form and blink it in the the taskbar

Posted on 2004-08-16
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Last Modified: 2010-04-05

I need to execute the method Show, autohiding the form and blinking the task bar (like receiving new message into msn)

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Question by:faustomen
3 Comments
 
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Expert Comment

by:beermequik
ID: 11815091
Use the windows API
FlashWindow...
and
ShowWindow...

when you want to minimize...
ShowWindow(Application.handle, SW_MINIMIZE);

The API only flashes it once so...

To flash repeatedly use a Timer Object
TTimer.OnTimer..
FlashWindow(Application.handle, true);


to stop flashing

Form.onActivate:
TTimer.active := false;

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Accepted Solution

by:
esoftbg earned 1000 total points
ID: 11815354
unit UnitBlink;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, Buttons, ExtCtrls, StdCtrls;

type
  TFormBlink = class(TForm)
    Timer: TTimer;
    procedure FormCreate(Sender: TObject);
    procedure TimerTimer(Sender: TObject);
  private   { Private declarations }
    ITimer:   Int64;
  public    { Public declarations }
  end;

var
  FormBlink: TFormBlink;

implementation

{$R *.dfm}

procedure TFormBlink.FormCreate(Sender: TObject);
begin
  ITimer := 0;
  Timer.Enabled := True;
end;

procedure TFormBlink.TimerTimer(Sender: TObject);
begin
  Inc(ITimer);
  if (ITimer>0) then
  begin
    FlashWindow(Application.Handle, True);
    if (ITimer=1) then
      ShowWindow(Application.Handle, SW_MINIMIZE);
    Application.ShowMainForm := False;
    ShowWindow(Application.MainForm.Handle, SW_HIDE);
    Timer.Interval := 320;
  end;
end;

end.
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LVL 2

Expert Comment

by:DarkCore_
ID: 11818128
To flash the Window use better FlashWindowEx, implemented in Windows 98, you don't need timer.

Edu
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