inject code DLL into process

_InjectDll(WinGetHandle('Untitled - Notepad'),'NhokZ.dll')
If @error Then MsgBox(16,'error',@error)
Func _InjectDll($hWnd, $dllpath)
;make sure the user passed valid parameters
If $hWnd <= 0 Then
SetError(-1)
Return False
ElseIf StringLen($dllpath) <= 4 Or StringRight($dllpath, 4) <> ".dll" Then
SetError(-2)
Return False
EndIf

Local $pid, $pHandle, $pLibRemote, $modHandle, $LoadLibraryA, $hThread

;open dll that we'll be using
Local $kernel32 = DllOpen("kernel32.dll")

;get the pid from the window provided
$pid = DllCall("user32.dll", "int", "GetWindowThreadProcessId", "hwnd", $hWnd, "int*", 0)
If IsArray($pid) Then
$pid = $pid[2]
Else
SetError(-3)
Return False
EndIf

;open the process for writing
$pHandle = DllCall($kernel32, "int", "OpenProcess", "int", 0x1F0FFF, "int", 0, "int", $pid)
If IsArray($pHandle) And $pHandle[0] > 0 Then
$pHandle = $pHandle[0]
Else
SetError(-4)
Return False
EndIf

$pLibRemote = DllCall($kernel32, "int", "VirtualAllocEx", "int", $pHandle, "short", 0, "int", 0x1000, "int", 0x1000, "int", 4)
If IsArray($pLibRemote) Then
If $pLibRemote[0] > 0 Then
;debug
ConsoleWrite("0x" & Hex($pLibRemote[0], & @CR)
$pLibRemote = $pLibRemote[0]
Else
SetError(-5)
Return False
EndIf
Else
SetError(-6)
Return False
EndIf

For $i = 0 To StringLen($dllpath)
$ret = DllCall("kernel32.dll", "int", "WriteProcessMemory", "int", $pHandle, "int", $pLibRemote + $i, "int*", Asc(StringMid($dllpath, $i + 1, 1)), "int", 1, "int", 0)
If IsArray($ret) Then
If $ret[0] = 0 Then
SetError(-7)
Return False
EndIf
Else
SetError(-
Return False
EndIf
Next

$modHandle = DllCall($kernel32, "long", "GetModuleHandle", "str", "kernel32.dll")
If IsArray($modHandle) Then
If $modHandle[0] > 0 Then
$modHandle = $modHandle[0]
Else
SetError(-9)
Return False
EndIf
Else
SetError(-10)
Return False
EndIf

$LoadLibraryA = DllCall($kernel32, "long", "GetProcAddress", "long", $modHandle, "str", "LoadLibraryA")
If IsArray($LoadLibraryA) Then
If $LoadLibraryA[0] > 0 Then
$LoadLibraryA = $LoadLibraryA[0]
Else
SetError(-11)
Return False
EndIf
Else
SetError (-12)
Return False
EndIf

$hThread = DllCall($kernel32, "int", "CreateRemoteThread", "int", $pHandle, "int", 0, "int", 0, "long", $LoadLibraryA, "long", $pLibRemote, "int", 0, "int", 0)
If IsArray($hThread) Then
ConsoleWrite($hThread[0] & @CR)
If $hThread[0] > 0 Then
$hThread = $hThread[0]
Else
SetError(-13)
Return False
EndIf
Else
SetError(-14)
Return False
EndIf

DllCall($kernel32, "int", "VirtualFreeEx", "int", $pHandle, "int", $pLibRemote, "int", 0x1000, "int", 0x8000)
DllCall($kernel32, "int", "CloseHandle", "int", $hThread)
DllCall($kernel32, "int", "CloseHandle", "int", $pHandle)

DllClose($kernel32)

Return True
EndFunc