回答編集履歴
1
BSTR に変更
test
CHANGED
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@@ -5,35 +5,41 @@
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5
5
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6
6
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class Program
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7
7
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{
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8
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-
[StructLayout(LayoutKind.Sequential
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8
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+
[StructLayout(LayoutKind.Sequential)]
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9
9
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public struct Test
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10
10
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{
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11
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-
[MarshalAs(UnmanagedType.
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11
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+
[MarshalAs(UnmanagedType.BStr)]
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public string x;
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-
[MarshalAs(UnmanagedType.
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+
[MarshalAs(UnmanagedType.BStr)]
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public string y;
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-
[MarshalAs(UnmanagedType.
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+
[MarshalAs(UnmanagedType.BStr)]
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public string z;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
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public test1[] test1s;
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}
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-
[StructLayout(LayoutKind.Sequential
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+
[StructLayout(LayoutKind.Sequential)]
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public struct test1
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{
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-
[MarshalAs(UnmanagedType.
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+
[MarshalAs(UnmanagedType.BStr)]
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public string e;
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}
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static void Main(string[] args) {
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29
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+
// BSTR 文字列のアドレスを格納する配列を作成
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IntPtr[] input = new IntPtr[5];
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for (int i = 0; i < input.Length; i++) {
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31
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-
input[i] = Marshal.StringTo
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32
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+
input[i] = Marshal.StringToBSTR((i + 1).ToString());
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}
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34
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+
// 配列を Test 構造体にコピー
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35
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GCHandle gch = GCHandle.Alloc(input, GCHandleType.Pinned);
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34
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Test result = (Test)Marshal.PtrToStructure(gch.AddrOfPinnedObject(), typeof(Test));
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35
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gch.Free();
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36
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-
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38
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+
// 不要になった BSTR 文字列を解放
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39
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+
for (int i = 0; i < input.Length; i++) {
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40
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Marshal.FreeBSTR(input[i]);
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41
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}
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// 結果確認
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Console.WriteLine(result.x);
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Console.WriteLine(result.y);
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Console.WriteLine(result.z);
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@@ -41,9 +47,6 @@
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41
47
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Console.WriteLine(result.test1s[1].e);
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48
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Console.ReadKey();
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44
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-
for (int i = 0; i < input.Length; i++) {
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45
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-
Marshal.FreeCoTaskMem(input[i]);
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46
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-
}
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}
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}
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49
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```
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