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Summary

The CreateStreamOnHGlobal API

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static extern int CreateStreamOnHGlobal(IntPtr hGlobal, bool fDeleteOnRelease,

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    Declare Function CreateStreamOnHGlobal Lib "ole32" (ByVal hGlobal As IntPtr, ByVal fDeleteOnRelease As Boolean, ByRef ppstm As UCOMIStream) As Long

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Documentation

[CreateStreamOnHGlobal] on MSDNaa

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       [System.Runtime.InteropServices.DllImport("OLE32.DLL", EntryPoint = "CreateStreamOnHGlobal")] // Create a COM stream from a pointer in unmanaged memory

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    extern public static int CreateStreamOnHGlobal(IntPtr ptr, bool delete, out System.Runtime.InteropServices.ComTypes.IStream pOutStm);

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                if (CreateStreamOnHGlobal(nativePtr, true, out comStream) == S_OK) // Create IStream from allocated memory that has buffer data

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      [System.Runtime.InteropServices.DllImport("OLE32.DLL", EntryPoint = "CreateStreamOnHGlobal")]

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    extern public static int CreateStreamOnHGlobal(IntPtr ptr, bool delete, out System.Runtime.InteropServices.ComTypes.IStream pOutStm);

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         if (CreateStreamOnHGlobal(ptrIStream, true, out IPtrStream) == 0)

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    [System.Runtime.InteropServices.DllImport("OLE32.DLL", EntryPoint = "CreateStreamOnHGlobal")]

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    extern public static int CreateStreamOnHGlobal(IntPtr ptr, bool delete, out System.Runtime.InteropServices.ComTypes.IStream pOutStm);

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         if (CreateStreamOnHGlobal(ptrIStream, true, out IPtrStream) == 0)