perform an action when window has changed.

Posted on 2004-10-06
Last Modified: 2010-04-05

I am making a console application.
I want to perform an action when window has changed.
I've created timer.

This is a function for getting window caption maybe it can help you answerring my question.

GetWindowText(GetForegroundWindow , @buf[0], SizeOf(buf) - 1);

Thank you
Question by:ssivagna
LVL 11

Expert Comment

ID: 12241929
window has changed?

Accepted Solution

Evarest earned 125 total points
ID: 12242218
Try this code:

program Project1;

  SysUtils, Windows, Forms;

{$apptype console}

 OldCaption: string;
 WNDCaption: array[0..255] of char;
  while true do
    GetWindowText(GetForeGroundWindow, @WNDCaption[0], sizeof(WNDCaption)-1);
    if OldCaption <> WNDCaption
     then WriteLn('New Window: '+WndCaption);
    OldCaption :=WNDCaption;

This small program will continuously loop and add any new window to the console output (if the caption is different).


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