;doesn't work via include, must run standalone GoSub, HookWindow HookWindow: ; New Window Hook Gui +LastFound hWnd := WinExist() DllCall( "RegisterShellHookWindow", UInt,hWnd ) MsgNum := DllCall( "RegisterWindowMessage", Str,"SHELLHOOK" ) OnMessage( MsgNum, "ShellMessage" ) ShellMessage(wParam,lParam) { If (wParam = 1) ; HSHELL_WINDOWCREATED := 1 { Sleep, 10 AdjustWindow(lParam) } } Return AdjustWindow(id) { WinId := id WinTitle := id = "A" ? "A" : "ahk_id " . id ; This is to check if the window is shown in the alt-tab menu, you don't want to do it on every single frame WinGet, WinExStyle, ExStyle, %WinTitle% If (WinExStyle & 0x80) { Return } WinGetClass, WinClass, %WinTitle% WinGet, WinProcess, ProcessName, %WinTitle% If WinClass In % "CabinetWClass" If WinProcess In % "explorer.exe" { WinSet, Style, -0xC00000, %WinTitle% } If WinClass In % "ShImgVw:CPreviewWnd" ;windows xp image viewer { WinSet, Style, -0xC00000, %WinTitle% } If WinClass In % "MMCMainFrame" ;windows xp mmc panes { WinSet, Style, -0xC00000, %WinTitle% } If WinClass In % "MozillaWindowClass" ;firefox { WinSet, Style, -0xC00000, %WinTitle% } If WinClass In % "#32770" ;windows xp date/time picker, amongst many other things { WinSet, Style, -0xC00000, %WinTitle% } If WinProcess In % "Photoshop.exe" { WinSet, Style, -0xC00000, %WinTitle% } If WinProcess In % "sumatrapdf.exe" { WinSet, Style, -0xC00000, %WinTitle% } If WinProcess In % "mintty.exe" { WinSet, Style, -0xC00000, %WinTitle% } If WinProcess In % "7zFM.exe" ;7zip { WinSet, Style, -0xC00000, %WinTitle% } If WinProcess In % "msaccess.exe" { WinSet, Style, -0xC00000, %WinTitle% } If WinProcess In % "excel.exe" { WinSet, Style, -0xC00000, %WinTitle% } If WinProcess In % "Notepad2.exe" { WinSet, Style, -0xC00000, %WinTitle% } If WinProcess In % "outlook.exe" { WinSet, Style, -0xC00000, %WinTitle% } If WinProcess In % "winword.exe" { WinSet, Style, -0xC00000, %WinTitle% } If WinClass In % "Qt5QWindowIcon" ;owncloud client { WinSet, Style, -0xC00000, %WinTitle% } If WinProcess In % "charmap.exe" { WinSet, Style, -0xC00000, %WinTitle% } If WinClass In % "mpv" { WinSet, Style, -0xC00000, %WinTitle% } }