【解決方法】Javaアクセスブリッジ機能を使用すると、すべてが機能するようです "setTextContents"

Java ウィンドウのフィールドにテキストを送信する際に、Java Access Bridge (windows access bridge DLL) を使用しています。 API を初期化し、Java ウィンドウを正常に検出しました (これは、「isJavaWindow」関数への 2 回目の呼び出しでのみ正しく機能します)。 「getAccessibleContextFromHWND」を介してアクセス可能なコンテキストを取得できます。 次に、コンテキストを使用して、問題のテキスト ボックスが見つかるまで子を再帰します。 「getTextInfo」関数を使用してフィールドの内容を読み取ることができ、「getAccessibleContextInfo」関数は適切なデータを返しています。 このフィールドのプロパティは、accessibleContextInfo データ構造を介して編集可能であることがわかりますが、「setTextContents」関数は常に false を返します。 C# でのコード スニペットの使用法を次に示します (Autoit も使用してみました) API バージョン 2.0.2

public partial class Form1 : Form
      {
          public Form1()
          {
              InitializeComponent();
          }

          private void button1_Click(object sender, EventArgs e)
          {
                // enumerate the windows
                JavaAPIFunc.Windows_run();
                bool found = false;
                
                Int32 VmId = 0;
                AccessibleContext Ac = new AccessibleContext();
                AccessibleContextInfo Info = new AccessibleContextInfo();
                foreach (KeyValuePair<intptr,> lWindow in OpenWindowGetter.GetOpenWindows())
                {
                    IntPtr lHandle = lWindow.Key;
                    string lTitle = lWindow.Value;
                    if (JavaAPIFunc.isJavaWindow((HWND)lHandle))
                    {
                        MessageBox.Show("Found a java window");
                        JavaAPIFunc.getAccessibleContextFromHWND(lHandle, out VmId, out Ac);
                        found = true;
                        break;
                    }
                }

            if(found)
            {
                TraverseTheBullshitInterface(VmId, Ac);
            }
        }

        private AccessibleContext TraverseTheBullshitInterface(Int32 VmId ,AccessibleContext AccessContext)
        {
            AccessibleContextInfo Info = new AccessibleContextInfo();
            AccessibleTextItemsInfo TextInfo = new AccessibleTextItemsInfo();
            JavaAPIFunc.getAccessibleContextInfo(VmId, AccessContext, ref Info);
            
            if (Info.name == "User name:" && Info.role_en_US == "text")
            {
                 JavaAPIFunc.getAccessibleTextItems(VmId, AccessContext, ref TextInfo, 0);
                if(!JavaAPIFunc.setTextContents(VmId, AccessContext, "test"))
                {
                     throw new Exception("Error setting text");
                }
            }

            for (int i = 0; i < Info.childrenCount; ++i)
            {
                TraverseTheBullshitInterface(VmId,JavaAPIFunc.getAccessibleChildFromContext(VmId, AccessContext, i));
            }
            return AccessContext;
        }
    }

data structures:
<pre lang="cs">public enum WABAPI { MAX_STRING_SIZE = 1024, SHORT_STRING_SIZE = 256, MAX_BUFFER_SIZE = 10240 }
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public struct AccessibleContextInfo
{
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = (int)WABAPI.MAX_STRING_SIZE)]
public string name;          // the AccessibleName of the object
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = (int)WABAPI.MAX_STRING_SIZE)]
public string description;     // the AccessibleDescription of the object
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = (int)WABAPI.SHORT_STRING_SIZE)]
public string role;     // localized AccesibleRole string
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = (int)WABAPI.SHORT_STRING_SIZE)]
public string role_en_US;     // AccesibleRole string in the en_US locale
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = (int)WABAPI.SHORT_STRING_SIZE)]
public string states;     // localized AccesibleStateSet string (comma separated)
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = (int)WABAPI.SHORT_STRING_SIZE)]
public string states_en_US; // AccesibleStateSet string in the en_US locale (comma separated)

public Int32 indexInParent;               // index of object in parent
public Int32 childrenCount;               // # of children, if any

public Int32 x;                         // screen coords in pixels
public Int32 y;                         // "
public Int32 width;                    // pixel width of object
public Int32 height;                    // pixel height of object

public Boolean accessibleComponent;     // flags for various additional
public Boolean accessibleAction;               // Java Accessibility interfaces
public Boolean accessibleSelection;          // FALSE if this object doesn't
public Boolean accessibleText;               // implement the additional interface
// in question

// BOOL accessibleValue; // old BOOL indicating whether AccessibleValue is supported
public Boolean accessibleInterfaces;          // new bitfield containing additional interface flags
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public struct AccessibleTextInfo
{
public Int32 charCount;                              // # of characters in this text object
public Int32 caretIndex;                         // index of caret
public Int32 indexAtPoint;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public struct AccessibleTextItemsInfo
{
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 1)]
public String letter;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = (int)WABAPI.SHORT_STRING_SIZE)]
public String word;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = (int)WABAPI.MAX_STRING_SIZE)]
public String sentence;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public struct AccessibleTextAttributesInfo
{
public Boolean bold;
public Boolean italic;
public Boolean underline;
public Boolean strikethrough;
public Boolean superscript;
public Boolean subscript;

[MarshalAs(UnmanagedType.ByValTStr, SizeConst = (int)WABAPI.SHORT_STRING_SIZE)]
public String backgroundColor;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = (int)WABAPI.SHORT_STRING_SIZE)]
public String foregroundColor;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = (int)WABAPI.SHORT_STRING_SIZE)]
public String fontFamily;
public Int32 fontSize;

public Int32 alignment;
public Int32 bidiLevel;

public Single firstLineIndent;
public Single leftIndent;
public Single rightIndent;
public Single lineSpacing;
public Single spaceAbove;
public Single spaceBelow;

[MarshalAs(UnmanagedType.ByValTStr, SizeConst = (int)WABAPI.MAX_STRING_SIZE)]
public String fullAttributesString;
}

Prototype import:

        [return: MarshalAs(UnmanagedType.Bool)]
        [DllImport("WindowsAccessBridge-64.dll", CallingConvention = CallingConvention.Cdecl,        ThrowOnUnmappableChar = true, CharSet = CharSet.Unicode)]
        public extern static bool setTextContents(Int32 vmID, AccessibleContext accessibleContext, string text);