#Requires AutoHotkey v2.0
#c::CenterWindow("A")
CenterWindow(winTitle*) {
hwnd := WinExist(winTitle*)
WinGetPos ,, &W, &H, hwnd
mon := GetNearestMonitorInfo(hwnd)
WinMove mon.WALeft + mon.WAWidth // 2 - W // 2, mon.WATop + mon.WAHeight // 2 - H // 2,,, hwnd
}
GetNearestMonitorInfo(winTitle*) {
static MONITOR_DEFAULTTONEAREST := 0x00000002
hwnd := WinExist(winTitle*)
hMonitor := DllCall("MonitorFromWindow", "ptr", hwnd, "uint", MONITOR_DEFAULTTONEAREST, "ptr")
NumPut("uint", 104, MONITORINFOEX := Buffer(104))
if (DllCall("user32\GetMonitorInfo", "ptr", hMonitor, "ptr", MONITORINFOEX)) {
Return { Handle : hMonitor
, Name : Name := StrGet(MONITORINFOEX.ptr + 40, 32)
, Number : RegExReplace(Name, ".*(\d+)$", "$1")
, Left : L := NumGet(MONITORINFOEX, 4, "int")
, Top : T := NumGet(MONITORINFOEX, 8, "int")
, Right : R := NumGet(MONITORINFOEX, 12, "int")
, Bottom : B := NumGet(MONITORINFOEX, 16, "int")
, WALeft : WL := NumGet(MONITORINFOEX, 20, "int")
, WATop : WT := NumGet(MONITORINFOEX, 24, "int")
, WARight : WR := NumGet(MONITORINFOEX, 28, "int")
, WABottom : WB := NumGet(MONITORINFOEX, 32, "int")
, Width : Width := R - L
, Height : Height := B - T
, WAWidth : WR - WL
, WAHeight : WB - WT
, Primary : NumGet(MONITORINFOEX, 36, "uint")
}
}
throw Error("GetMonitorInfo: " A_LastError, -1)
}
