Я бы с опаской использовал данный "более простой" (хотя чем он более простой - экономией места?) способ.
Можно нарваться на необъяснимые глюки и потом тратить время на их выявление и устранение.
Например, метод toFixed:
Num := 1.0005
msgbox % SRound(Num, 3)
SRound(Num, n=0)
{
static js
if !js
js := new JsRT.Edge
return js.Eval(num ".toFixed(" n ");")
}
/*
* ActiveScript for AutoHotkey v1.1
*
* Provides an interface to Active Scripting languages like VBScript and JScript,
* without relying on Microsoft's ScriptControl, which is not available to 64-bit
* programs.
*
* License: Use, modify and redistribute without limitation, but at your own risk.
*/
class ActiveScript extends ActiveScript._base
{
__New(Language)
{
if this._script := ComObjCreate(Language, ActiveScript.IID)
this._scriptParse := ComObjQuery(this._script, ActiveScript.IID_Parse)
if !this._scriptParse
throw Exception("Invalid language", -1, Language)
this._site := new ActiveScriptSite(this)
this._SetScriptSite(this._site.ptr)
this._InitNew()
this._objects := {}
this.Error := ""
this._dsp := this._GetScriptDispatch() ; Must be done last.
try
if this.ScriptEngine() = "JScript"
this.SetJScript58()
}
SetJScript58()
{
static IID_IActiveScriptProperty := "{4954E0D0-FBC7-11D1-8410-006008C3FBFC}"
if !prop := ComObjQuery(this._script, IID_IActiveScriptProperty)
return false
VarSetCapacity(var, 24, 0), NumPut(2, NumPut(3, var, "short") + 6)
hr := DllCall(NumGet(NumGet(prop+0)+4*A_PtrSize), "ptr", prop, "uint", 0x4000
, "ptr", 0, "ptr", &var), ObjRelease(prop)
return hr >= 0
}
Eval(Code)
{
pvar := NumGet(ComObjValue(arr:=ComObjArray(0xC,1)) + 8+A_PtrSize)
this._ParseScriptText(Code, 0x20, pvar) ; SCRIPTTEXT_ISEXPRESSION := 0x20
return arr[0]
}
Exec(Code)
{
this._ParseScriptText(Code, 0x42, 0) ; SCRIPTTEXT_ISVISIBLE := 2, SCRIPTTEXT_ISPERSISTENT := 0x40
this._SetScriptState(2) ; SCRIPTSTATE_CONNECTED := 2
}
AddObject(Name, DispObj, AddMembers := false)
{
static a, supports_dispatch ; Test for built-in IDispatch support.
:= a := ((a:=ComObjArray(0xC,1))[0]:=[42]) && a[0][1]=42
if IsObject(DispObj) && !(supports_dispatch || ComObjType(DispObj))
throw Exception("Adding a non-COM object requires AutoHotkey v1.1.17+", -1)
this._objects[Name] := DispObj
this._AddNamedItem(Name, AddMembers ? 8 : 2) ; SCRIPTITEM_ISVISIBLE := 2, SCRIPTITEM_GLOBALMEMBERS := 8
}
_GetObjectUnk(Name)
{
return !IsObject(dsp := this._objects[Name]) ? dsp ; Pointer
: ComObjValue(dsp) ? ComObjValue(dsp) ; ComObject
: &dsp ; AutoHotkey object
}
class _base
{
__Call(Method, Params*)
{
if ObjHasKey(this, "_dsp")
try
return (this._dsp)[Method](Params*)
catch e
throw Exception(e.Message, -1, e.Extra)
}
__Get(Property, Params*)
{
if ObjHasKey(this, "_dsp")
try
return (this._dsp)[Property, Params*]
catch e
throw Exception(e.Message, -1, e.Extra)
}
__Set(Property, Params*)
{
if ObjHasKey(this, "_dsp")
{
Value := Params.Pop()
try
return (this._dsp)[Property, Params*] := Value
catch e
throw Exception(e.Message, -1, e.Extra)
}
}
}
_SetScriptSite(Site)
{
hr := DllCall(NumGet(NumGet((p:=this._script)+0)+3*A_PtrSize), "ptr", p, "ptr", Site)
if (hr < 0)
this._HRFail(hr, "IActiveScript::SetScriptSite")
}
_SetScriptState(State)
{
hr := DllCall(NumGet(NumGet((p:=this._script)+0)+5*A_PtrSize), "ptr", p, "int", State)
if (hr < 0)
this._HRFail(hr, "IActiveScript::SetScriptState")
}
_AddNamedItem(Name, Flags)
{
hr := DllCall(NumGet(NumGet((p:=this._script)+0)+8*A_PtrSize), "ptr", p, "wstr", Name, "uint", Flags)
if (hr < 0)
this._HRFail(hr, "IActiveScript::AddNamedItem")
}
_GetScriptDispatch()
{
hr := DllCall(NumGet(NumGet((p:=this._script)+0)+10*A_PtrSize), "ptr", p, "ptr", 0, "ptr*", pdsp)
if (hr < 0)
this._HRFail(hr, "IActiveScript::GetScriptDispatch")
return ComObject(9, pdsp, 1)
}
_InitNew()
{
hr := DllCall(NumGet(NumGet((p:=this._scriptParse)+0)+3*A_PtrSize), "ptr", p)
if (hr < 0)
this._HRFail(hr, "IActiveScriptParse::InitNew")
}
_ParseScriptText(Code, Flags, pvarResult)
{
VarSetCapacity(excp, 8 * A_PtrSize, 0)
hr := DllCall(NumGet(NumGet((p:=this._scriptParse)+0)+5*A_PtrSize), "ptr", p
, "wstr", Code, "ptr", 0, "ptr", 0, "ptr", 0, "uptr", 0, "uint", 1
, "uint", Flags, "ptr", pvarResult, "ptr", 0)
if (hr < 0)
this._HRFail(hr, "IActiveScriptParse::ParseScriptText")
}
_HRFail(hr, what)
{
if e := this.Error
{
this.Error := ""
throw Exception("`nError code:`t" this._HRFormat(e.HRESULT)
. "`nSource:`t`t" e.Source "`nDescription:`t" e.Description
. "`nLine:`t`t" e.Line "`nColumn:`t`t" e.Column
. "`nLine text:`t`t" e.LineText, -3)
}
throw Exception(what " failed with code " this._HRFormat(hr), -2)
}
_HRFormat(hr)
{
return Format("0x{1:X}", hr & 0xFFFFFFFF)
}
_OnScriptError(err) ; IActiveScriptError err
{
VarSetCapacity(excp, 8 * A_PtrSize, 0)
DllCall(NumGet(NumGet(err+0)+3*A_PtrSize), "ptr", err, "ptr", &excp) ; GetExceptionInfo
DllCall(NumGet(NumGet(err+0)+4*A_PtrSize), "ptr", err, "uint*", srcctx, "uint*", srcline, "int*", srccol) ; GetSourcePosition
DllCall(NumGet(NumGet(err+0)+5*A_PtrSize), "ptr", err, "ptr*", pbstrcode) ; GetSourceLineText
code := StrGet(pbstrcode, "UTF-16"), DllCall("OleAut32\SysFreeString", "ptr", pbstrcode)
if fn := NumGet(excp, 6 * A_PtrSize) ; pfnDeferredFillIn
DllCall(fn, "ptr", &excp)
wcode := NumGet(excp, 0, "ushort")
hr := wcode ? 0x80040200 + wcode : NumGet(excp, 7 * A_PtrSize, "uint")
this.Error := {HRESULT: hr, Line: srcline, Column: srccol, LineText: code}
static Infos := "Source,Description,HelpFile"
Loop Parse, % Infos, `,
if pbstr := NumGet(excp, A_Index * A_PtrSize)
this.Error[A_LoopField] := StrGet(pbstr, "UTF-16"), DllCall("OleAut32\SysFreeString", "ptr", pbstr)
return 0x80004001 ; E_NOTIMPL (let Exec/Eval get a fail result)
}
__Delete()
{
if this._script
{
DllCall(NumGet(NumGet((p:=this._script)+0)+7*A_PtrSize), "ptr", p) ; Close
ObjRelease(this._script)
}
if this._scriptParse
ObjRelease(this._scriptParse)
}
static IID := "{BB1A2AE1-A4F9-11cf-8F20-00805F2CD064}"
static IID_Parse := A_PtrSize=8 ? "{C7EF7658-E1EE-480E-97EA-D52CB4D76D17}" : "{BB1A2AE2-A4F9-11cf-8F20-00805F2CD064}"
}
class ActiveScriptSite
{
__New(Script)
{
ObjSetCapacity(this, "_site", 3 * A_PtrSize)
NumPut(&Script
, NumPut(ActiveScriptSite._vftable("_vft_w", "31122", 0x100)
, NumPut(ActiveScriptSite._vftable("_vft", "31125232211", 0)
, this.ptr := ObjGetAddress(this, "_site"))))
}
_vftable(Name, PrmCounts, EIBase)
{
if p := ObjGetAddress(this, Name)
return p
ObjSetCapacity(this, Name, StrLen(PrmCounts) * A_PtrSize)
p := ObjGetAddress(this, Name)
Loop Parse, % PrmCounts
{
cb := RegisterCallback("_ActiveScriptSite", "F", A_LoopField, A_Index + EIBase)
NumPut(cb, p + (A_Index-1) * A_PtrSize)
}
return p
}
}
_ActiveScriptSite(this, a1:=0, a2:=0, a3:=0, a4:=0, a5:=0)
{
Method := A_EventInfo & 0xFF
if A_EventInfo >= 0x100 ; IActiveScriptSiteWindow
{
if Method = 4 ; GetWindow
{
NumPut(0, a1+0) ; *phwnd := 0
return 0 ; S_OK
}
if Method = 5 ; EnableModeless
{
return 0 ; S_OK
}
this -= A_PtrSize ; Cast to IActiveScriptSite
}
;else: IActiveScriptSite
if Method = 1 ; QueryInterface
{
iid := _AS_GUIDToString(a1)
if (iid = "{00000000-0000-0000-C000-000000000046}" ; IUnknown
|| iid = "{DB01A1E3-A42B-11cf-8F20-00805F2CD064}") ; IActiveScriptSite
{
NumPut(this, a2+0)
return 0 ; S_OK
}
if (iid = "{D10F6761-83E9-11cf-8F20-00805F2CD064}") ; IActiveScriptSiteWindow
{
NumPut(this + A_PtrSize, a2+0)
return 0 ; S_OK
}
NumPut(0, a2+0)
return 0x80004002 ; E_NOINTERFACE
}
if Method = 5 ; GetItemInfo
{
a1 := StrGet(a1, "UTF-16")
, (a3 && NumPut(0, a3+0)) ; *ppiunkItem := NULL
, (a4 && NumPut(0, a4+0)) ; *ppti := NULL
if (a2 & 1) ; SCRIPTINFO_IUNKNOWN
{
if !(unk := Object(NumGet(this + A_PtrSize*2))._GetObjectUnk(a1))
return 0x8002802B ; TYPE_E_ELEMENTNOTFOUND
ObjAddRef(unk), NumPut(unk, a3+0)
}
return 0 ; S_OK
}
if Method = 9 ; OnScriptError
return Object(NumGet(this + A_PtrSize*2))._OnScriptError(a1)
; AddRef and Release don't do anything because we want to avoid circular references.
; The site and IActiveScript are both released when the AHK script releases its last
; reference to the ActiveScript object.
; All of the other methods don't require implementations.
return 0x80004001 ; E_NOTIMPL
}
_AS_GUIDToString(pGUID)
{
VarSetCapacity(String, 38*2)
DllCall("ole32\StringFromGUID2", "ptr", pGUID, "str", String, "int", 39)
return String
}
/*
* JsRT for AutoHotkey v1.1
*
* Utilizes the JavaScript engine that comes with IE11.
*
* License: Use, modify and redistribute without limitation, but at your own risk.
*/
class JsRT extends ActiveScript._base
{
__New()
{
throw Exception("This class is abstract. Use JsRT.IE or JSRT.Edge instead.", -1)
}
class IE extends JsRT
{
__New()
{
if !this._hmod := DllCall("LoadLibrary", "str", "jscript9", "ptr")
throw Exception("Failed to load jscript9.dll", -1)
if DllCall("jscript9\JsCreateRuntime", "int", 0, "int", -1
, "ptr", 0, "ptr*", runtime) != 0
throw Exception("Failed to initialize JsRT", -1)
DllCall("jscript9\JsCreateContext", "ptr", runtime, "ptr", 0, "ptr*", context)
this._Initialize("jscript9", runtime, context)
}
}
class Edge extends JsRT
{
__New()
{
if !this._hmod := DllCall("LoadLibrary", "str", "chakra", "ptr")
throw Exception("Failed to load chakra.dll", -1)
if DllCall("chakra\JsCreateRuntime", "int", 0
, "ptr", 0, "ptr*", runtime) != 0
throw Exception("Failed to initialize JsRT", -1)
DllCall("chakra\JsCreateContext", "ptr", runtime, "ptr*", context)
this._Initialize("chakra", runtime, context)
}
ProjectWinRTNamespace(namespace)
{
return DllCall("chakra\JsProjectWinRTNamespace", "wstr", namespace)
}
}
_Initialize(dll, runtime, context)
{
this._dll := dll
this._runtime := runtime
this._context := context
DllCall(dll "\JsSetCurrentContext", "ptr", context)
DllCall(dll "\JsGetGlobalObject", "ptr*", globalObject)
this._dsp := this._JsToVt(globalObject)
}
__Delete()
{
this._dsp := ""
if dll := this._dll
{
DllCall(dll "\JsSetCurrentContext", "ptr", 0)
DllCall(dll "\JsDisposeRuntime", "ptr", this._runtime)
}
DllCall("FreeLibrary", "ptr", this._hmod)
}
_JsToVt(valref)
{
VarSetCapacity(variant, 24, 0)
DllCall(this._dll "\JsValueToVariant", "ptr", valref, "ptr", &variant)
ref := ComObject(0x400C, &variant), val := ref[], ref[] := 0
return val
}
_ToJs(val)
{
VarSetCapacity(variant, 24, 0)
ref := ComObject(0x400C, &variant) ; VT_BYREF|VT_VARIANT
ref[] := val
DllCall(this._dll "\JsVariantToValue", "ptr", &variant, "ptr*", valref)
ref[] := 0
return valref
}
_JsEval(code)
{
e := DllCall(this._dll "\JsRunScript", "wstr", code, "uptr", 0, "wstr", "source.js"
, "ptr*", result)
if e
{
if DllCall(this._dll "\JsGetAndClearException", "ptr*", excp) = 0
throw this._JsToVt(excp)
throw Exception("JsRT error", -2, format("0x{:X}", e))
}
return result
}
Exec(code)
{
this._JsEval(code)
}
Eval(code)
{
return this._JsToVt(this._JsEval(code))
}
AddObject(name, obj, addMembers := false)
{
if addMembers
throw Exception("AddMembers=true is not supported", -1)
this._dsp[name] := obj
}
}
