protected static void SendReturnData(int communicationNo, IntPtr receiveWindowHandle, object data)
{
IntPtr globalData = IntPtr.Zero;
try
{
CopyDataProtocolInfo communicatonData = new CopyDataProtocolInfo(IntPtr.Zero, data);
byte[] bin = communicatonData.Serialize();
NativeMethods.COPYDATASTRUCT copyData = new NativeMethods.COPYDATASTRUCT();
copyData.dwData = IntPtr.Zero;
copyData.cbData = (uint)bin.Length;
copyData.lpData = globalData = Marshal.AllocHGlobal(bin.Length);
Marshal.Copy(bin, 0, copyData.lpData, bin.Length);
NativeMethods.SendMessage(receiveWindowHandle, NativeMethods.WM_COPYDATA, new IntPtr(communicationNo), ref copyData);
}
catch
{
//対象アプリケーションプロセスでの実行なので例外は投げない。
}
finally
{
if (globalData != IntPtr.Zero)
{
Marshal.FreeHGlobal(globalData);
}
}
}
/// <summary>
/// 送受信。
/// </summary>
/// <param name="targetWindowHandle">送信対象ウィンドウハンドル。</param>
/// <param name="data">送信データ。</param>
/// <param name="recieveWindow">受信ウィンドウ。</param>
/// <returns>受信データ。</returns>
internal static object SendAndRecieve(IntPtr targetWindowHandle, object data, ReceiveAfterSend recieveWindow)
{
//通信番号生成
int communicationNo = 0;
if (!recieveWindow.UniqueNoManager.CreateNo(out communicationNo))
{
throw new InformationException(ResourcesLocal.Instance.OutOfCommunicationNo);
}
//使用可能なスレッドであるかチェック
if (!recieveWindow.CanUseThread)
{
throw new FriendlyOperationException(ResourcesLocal.Instance.ErrorInvalidThreadCall);
}
//送受信
IntPtr globalData = IntPtr.Zero;
try
{
//通信データ作成
CopyDataProtocolInfo communicationData = new CopyDataProtocolInfo(recieveWindow.Handle, data);
//シリアライズ
byte[] bin = communicationData.Serialize();
//WM_COPYDATAでの送信用構造体に移し替え
NativeMethods.COPYDATASTRUCT copyData = new NativeMethods.COPYDATASTRUCT();
copyData.dwData = IntPtr.Zero;
copyData.cbData = (uint)bin.Length;
copyData.lpData = globalData = Marshal.AllocHGlobal(bin.Length);
Marshal.Copy(bin, 0, copyData.lpData, bin.Length);
//送信
IntPtr sendRet = NativeMethods.SendMessage(targetWindowHandle, NativeMethods.WM_COPYDATA, new IntPtr(communicationNo), ref copyData);
if (sendRet != ReceiveForm.SendCopyDataSuccess)
{
throw new FriendlyOperationException(ResourcesLocal.Instance.ErrorAppCommunication);
}
//受信データ取得
object receiveData;
if (!recieveWindow.GetReceiveData(communicationNo, out receiveData))
{
throw new FriendlyOperationException(ResourcesLocal.Instance.ErrorAppCommunication);
}
return(receiveData);
}
finally
{
//グローバルメモリ解放
if (globalData != IntPtr.Zero)
{
Marshal.FreeHGlobal(globalData);
}
recieveWindow.UniqueNoManager.FreeNo(communicationNo);
}
}
private static bool ProcessCopyData(ref Message message, out CopyDataProtocolInfo data)
{
data = null;
if (message.Msg == NativeMethods.WM_COPYDATA)
{
//デシリアライズ
//これが失敗するということは通信の状態が正常ではないので、詳細は返さず、ただ、通信に失敗したことだけ通知する
try
{
NativeMethods.COPYDATASTRUCT globalData = (NativeMethods.COPYDATASTRUCT)message.GetLParam(typeof(NativeMethods.COPYDATASTRUCT));
byte[] bin = new byte[(int)globalData.cbData];
Marshal.Copy(globalData.lpData, bin, 0, bin.Length);
data = CopyDataProtocolInfo.Deserialize(bin);
message.Result = SendCopyDataSuccess;
}
catch
{
message.Result = IntPtr.Zero;
}
return(true);
}
return(false);
}