Return Value Success: Returns 1. Failure: Returns 0. Remarks None. Related GUICreate Example #include <GUIConstantsEx.au3> Opt('MustDeclareVars', 1) Example() Func Example() Local $msg GUICreate("My GUI") ; will create a dialog box that when displayed is centered GUISetHelp("notepad") ; will run notepad if F1 is typed GUISetState() ; will display an empty dialog box ; Run the GUI until the dialog is closed While 1 $msg = GUIGetMsg() If $msg = $GUI_EVENT_CLOSE Then ExitLoop WEnd EndFunc ;==>Example Function Reference GUISetIcon Sets the icon used in a GUI window. GUISetIcon ( iconfile [, iconID [, winhandle]] ) Parameters iconfile used to display the icon in the title area. iconID [optional] The ID of the icon in the iconfile. (Default is -1). winhandle [optional] Windows handle as returned by GUICreate (default is the previously used window). Return Value Success: Returns 1. Failure: Returns 0. Remarks Passing a positive number will reference the string equivalent icon name. Passing a negative number causes 1-based "index" behaviour. Some Dll can have icon extracted just with negative numbers. Related GUICreate Example #include <GUIConstantsEx.au3> Opt('MustDeclareVars', 1) Example() Func Example() Local $sFile = RegRead("HKEY_LOCAL_MACHINE\SOFTWARE\AutoIt v3\AutoIt", "InstallDir") & "\icons\filetype1.ico" Local $msg GUICreate("My GUI new icon") ; will create a dialog box that when displayed is centered GUISetIcon($sFile) ; will change icon GUISetState(); will display an empty dialog box ; Run the GUI until the dialog is closed While 1 $msg = GUIGetMsg() If $msg = $GUI_EVENT_CLOSE Then ExitLoop WEnd EndFunc ;==>Example Function Reference GUISetOnEvent Defines a user function to be called when a system button is clicked. GUISetOnEvent ( specialID, "function" [, winhandle] ) Parameters specialID See the Special ID table below. function The name of the user function to call. winhandle [optional] Windows handle as returned by GUICreate (default is the previously used window). Return Value Success: Returns 1. Failure: Returns 0. Remarks OnEvent functions are only called when the option GUIOnEventMode is set to 1 - when in this mode GUIGetMsg is NOT used at all. If the option GUIEventOptions is set to 1 the minimize, restore and maximize button will not do any action on the window just a simple notification. If the function is an empty string "" the previous user-defined is disabled. Special ID table Special Id Comments $GUI_EVENT_CLOSE dialog box being closed (either by defined button or system menu). $GUI_EVENT_MINIMIZE dialog box minimized with Windows title bar button. $GUI_EVENT_RESTORE dialog box restored by click on task bar icon. $GUI_EVENT_MAXIMIZE dialog box maximized with Windows title bar button. $GUI_EVENT_MOUSEMOVE the mouse cursor has moved. $GUI_EVENT_PRIMARYDOWN the primary mouse button was pressed. $GUI_EVENT_PRIMARYUP the primary mouse button was released. $GUI_EVENT_SECONDARYDOWN the secondary mouse button was pressed. $GUI_EVENT_SECONDARYUP the secondary mouse button was released. $GUI_EVENT_RESIZED dialog box has been resized. $GUI_EVENT_DROPPED End of a Drag&Drop action @GUI_DRAGID, @GUI_DRAGFILE and @GUI_DROPID will be used to retrieve the ID's/file corresponding to the involve control. Related GUIOnEventMode (Option), GUIEventOptions (Option), GUICtrlSetOnEvent Example #include <GUIConstantsEx.au3> Opt('MustDeclareVars', 1) Example() Func Example() Local $parent1, $ok1, $cancel1 Opt("GUICoordMode", 2) Opt("GUIResizeMode", 1) Opt("GUIOnEventMode", 1) $parent1 = GUICreate("Parent1") GUISetOnEvent($GUI_EVENT_CLOSE, "SpecialEvents") . Example() Func Example() Local $sFile = RegRead("HKEY_LOCAL_MACHINESOFTWARE AutoIt v3 AutoIt& quot;, "InstallDir") & "iconsfiletype1.ico" Local $msg. GUICreate("My GUI") ; will create a dialog box that when displayed is centered GUISetHelp("notepad") ; will run notepad if F1 is typed GUISetState() ; will display an