如何从托管c+；封送字节数组+；到c# < >我想使用C++托管项目中的.NET图形功能。我想从内存中的C++字节数组创建Wistop.DavaIn图像（基于内存流）。p>

如何使这段代码正常工作：

System::IO::Stream^ ms = gcnew System::IO::MemoryStream();
BYTE buf[1024 * 8];  // C++
int size;  // C++
...
ms->Write(&buf, 0, size) 

---

提前谢谢你

您可以这样做：

int size = 1024;

BYTE buf[1024];

// unmanaged buffer
System::IntPtr intPtr = System::IntPtr( buf );

// managed buffer 
array<unsigned char>^ managedBuf = gcnew array<unsigned char>(size);

{
    // write things to buf[]
}

// copy unmanaged buffer to managed buffer
Marshal::Copy( intPtr, managedBuf, 0, size );

System::IO::Stream^ ms = gcnew System::IO::MemoryStream();

ms->Write( managedBuf, 0, size);

int size=1024；
字节buf[1024]；
//非托管缓冲区
System:：IntPtr IntPtr=System:：IntPtr（buf）；
//托管缓冲区
数组^managedBuf=gcnew数组（大小）；
{
//写东西给buf[]
}
//将非托管缓冲区复制到托管缓冲区
封送：复制（intPtr，managedBuf，0，size）；
System:：IO:：Stream ^ms=gcnew System:：IO:：MemoryStream（）；
ms->Write（managedBuf，0，大小）；

您可以这样做：

int size = 1024;

BYTE buf[1024];

// unmanaged buffer
System::IntPtr intPtr = System::IntPtr( buf );

// managed buffer 
array<unsigned char>^ managedBuf = gcnew array<unsigned char>(size);

{
    // write things to buf[]
}

// copy unmanaged buffer to managed buffer
Marshal::Copy( intPtr, managedBuf, 0, size );

System::IO::Stream^ ms = gcnew System::IO::MemoryStream();

ms->Write( managedBuf, 0, size);

int size=1024；
字节buf[1024]；
//非托管缓冲区
System:：IntPtr IntPtr=System:：IntPtr（buf）；
//托管缓冲区
数组^managedBuf=gcnew数组（大小）；
{
//写东西给buf[]
}
//将非托管缓冲区复制到托管缓冲区
封送：复制（intPtr，managedBuf，0，size）；
System:：IO:：Stream ^ms=gcnew System:：IO:：MemoryStream（）；
ms->Write（managedBuf，0，大小）；