Window-related condition.

Syntax: 

<if_win>("WinTitle", "Condition", Match)

WinTitle
Title of the window to check against the Condition.

Condition
Condition can be one from  the following:
"OPEN" - the <if_win> statement is true if window with the WinTitle is opened (exist).
"CLOSE" - the <if_win> statement is true if window with the WinTitle is not opened (no more exist).
"ACT" - the <if_win> statement is true if window with the WinTitle is active (top most, receives keyboard events).
"NOACT" - the <if_win> statement is true if window with the WinTitle is not active (not receives keyboard events).

Match
If 1, WinTitle must exactly match a window title.
If 0, WinTitle can be a substring of a window title.

Example: 

<#> This macro shows how to use <if_win> command
<#>
<cmds>
<if_win>("notepad","OPEN",0)
   <if_win>("Notepad","ACT",0)
      <msg>(100,100,"Notepad is opened and active.","Message",1)
   <else>
      <msg>(100,100,"Notepad is opened but not active.","Message",1)
   <endif>
<else>
   <msg>(100,100,"Notepad is not opened.","Message",1)
<endif>