LCIDConversionAttribute クラス
アセンブリ: mscorlib (mscorlib.dll 内)
構文
<ComVisibleAttribute(True)> _ <AttributeUsageAttribute(AttributeTargets.Method, Inherited:=False)> _ Public NotInheritable Class LCIDConversionAttribute Inherits Attribute
[ComVisibleAttribute(true)] [AttributeUsageAttribute(AttributeTargets.Method, Inherited=false)] public sealed class LCIDConversionAttribute : Attribute
[ComVisibleAttribute(true)] [AttributeUsageAttribute(AttributeTargets::Method, Inherited=false)] public ref class LCIDConversionAttribute sealed : public Attribute
この属性は、マーシャラが、指定されたメソッド引数の後に LCID を渡すことを要求することを示します。マネージ コードからアンマネージ コードへの呼び出しが行われるときに、マーシャラが引数 LCID を自動的に指定します。
LCIDConversionAttribute に指定されるさまざまな値に応じて、シグネチャが変化するようすを次の例に示します。
Imports System Imports System.Runtime.InteropServices Imports System.Reflection Class LCIDAttrSampler Const LCID_INSTALLED As Integer = 1 Const LCID_SUPPORTED As Integer = 2 <DllImport("KERNEL32.DLL", EntryPoint:="IsValidLocale", _ SetLastError:=True, CharSet:=CharSet.Unicode, _ CallingConvention:=CallingConvention.StdCall), _ LCIDConversionAttribute(0)> _ Public Shared Function IsValidLocale(ByVal dwFlags As Integer) As Boolean End Function Public Sub CheckCurrentLCID() Dim mthIfo As MethodInfo = Me.GetType().GetMethod("IsValidLocale") Dim attr As Attribute = Attribute.GetCustomAttribute(mthIfo, GetType(LCIDConversionAttribute)) If Not(attr Is Nothing) Then Dim lcidAttr As LCIDConversionAttribute = CType(attr, LCIDConversionAttribute) Console.WriteLine("Position of the LCID argument in the unmanaged signature: " + lcidAttr.Value.ToString()) End If Dim res As Boolean = IsValidLocale(LCID_INSTALLED) Console.WriteLine("Result LCID_INSTALLED " + res.ToString()) res = IsValidLocale(LCID_SUPPORTED) Console.WriteLine("Result LCID_SUPPORTED " + res.ToString()) End Sub Public Shared Sub Main() Dim smpl As LCIDAttrSampler = New LCIDAttrSampler() smpl.CheckCurrentLCID() End Sub End Class
using System; using System.Runtime.InteropServices; using System.Reflection; class LCIDAttrSample { private const int LCID_INSTALLED = 1; private const int LCID_SUPPORTED = 2; [DllImport("KERNEL32.DLL", EntryPoint="IsValidLocale", SetLastError = true, CharSet = CharSet.Auto)] [LCIDConversionAttribute(0)] // Position of the LCID argument public static extern bool IsValidLocale( uint dwFlags // options ); public void CheckCurrentLCID() { MethodInfo mthIfo = this.GetType().GetMethod("IsValidLocale"); Attribute attr = Attribute.GetCustomAttribute(mthIfo,typeof(LCIDConversionAttribute)); if( attr != null) { LCIDConversionAttribute lcidAttr = (LCIDConversionAttribute)attr; Console.WriteLine("Position of the LCID argument in the unmanaged signature: " + lcidAttr.Value.ToString()); } bool res = IsValidLocale(LCID_INSTALLED); Console.WriteLine("Result LCID_INSTALLED " + res.ToString()); res = IsValidLocale(LCID_SUPPORTED); Console.WriteLine("Result LCID_SUPPORTED " + res.ToString()); } static void Main(string[] args) { LCIDAttrSample smpl = new LCIDAttrSample(); smpl.CheckCurrentLCID(); } }
using namespace System; using namespace System::Runtime::InteropServices; using namespace System::Reflection; #define LCID_INSTALLED 1 #define LCID_SUPPORTED 2 ref class LCIDAttrSample { public: // Position of the LCID argument [DllImport("KERNEL32.DLL",EntryPoint="IsValidLocale",SetLastError=true ,CharSet=CharSet::Auto)] [LCIDConversionAttribute(0)] static bool IsValidLocale( int dwFlags ); // options void CheckCurrentLCID() { MethodInfo^ mthIfo = this->GetType()->GetMethod( "IsValidLocale" ); Attribute^ attr = Attribute::GetCustomAttribute( mthIfo, LCIDConversionAttribute::typeid ); if ( attr != nullptr ) { LCIDConversionAttribute^ lcidAttr = dynamic_cast<LCIDConversionAttribute^>(attr); Console::WriteLine( "Position of the LCID argument in the unmanaged signature: {0}", lcidAttr->Value ); } bool res = IsValidLocale( LCID_INSTALLED ); Console::WriteLine( "Result LCID_INSTALLED {0}", res ); res = IsValidLocale( LCID_SUPPORTED ); Console::WriteLine( "Result LCID_SUPPORTED {0}", res ); } }; int main() { LCIDAttrSample^ smpl = gcnew LCIDAttrSample; smpl->CheckCurrentLCID(); }
import System.*; import System.Runtime.InteropServices.*; import System.Reflection.*; class LCIDAttrSample { private static final int LCID_INSTALLED = 1; private static final int LCID_SUPPORTED = 2; /** @attribute DllImport("KERNEL32.DLL", EntryPoint = "IsValidLocale" , SetLastError = true, CharSet = CharSet.Auto) */ /** @attribute LCIDConversionAttribute(0) */ public static native boolean IsValidLocale(int dwFlags); // Position of the LCID argument options public void CheckCurrentLCID() { MethodInfo mthIfo = this.GetType().GetMethod("IsValidLocale"); Attribute attr = Attribute.GetCustomAttribute(mthIfo, LCIDConversionAttribute.class.ToType()); if (attr != null) { LCIDConversionAttribute lcidAttr = (LCIDConversionAttribute)attr; Console.WriteLine("Position of the LCID argument in the unmanaged " + "signature: " + System.Convert.ToString(lcidAttr.get_Value())); } boolean res = IsValidLocale(LCID_INSTALLED); Console.WriteLine("Result LCID_INSTALLED " + System.Convert.ToString(res)); res = IsValidLocale(LCID_SUPPORTED); Console.WriteLine("Result LCID_SUPPORTED " + System.Convert.ToString(res)); } //CheckCurrentLCID public static void main(String[] args) { LCIDAttrSample smpl = new LCIDAttrSample(); smpl.CheckCurrentLCID(); } //main } //LCIDAttrSample
System.Attribute
System.Runtime.InteropServices.LCIDConversionAttribute
プラットフォーム
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
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参照
- LCIDConversionAttribute クラスのページへのリンク