请教如何把BYTE数组转化或构造成ABI::Windows::Storage::Streams::IBuffer

Question

请教如何把BYTE数组转化或构造成ABI::Windows::Storage::Streams::IBuffer

比如

byte valueBuffer[] = { 52,36,51 };

把valueBuffer的字节数组构造成ABI::Windows::Storage::Streams::IBuffer 。

注意是在mfc 桌面应用！！！。

在网上找过例子，到再用IBuffer的时候出错，也不知道是不是IBuffer构造错误。

谢谢

Answer 1

你好,

感谢在MSDN论坛发帖。

>> 请教如何把BYTE数组转化或构造成ABI::Windows::Storage::Streams::IBuffer

这里有个链接你可以参考一下，方便提供你用IBuffer时报错的详细信息吗，这样便于大家帮你分析具体问题。

Best Wishes,

Jack Zhang

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Answer 2

谢谢回复，也是参考了这个链接的例子 ，后来参考这帖子里下面的方法

BYTE input[1024] {};

DataWriter ^writer = ref new DataWriter();
writer->WriteBytes(Platform::ArrayReference<BYTE>(input, sizeof(input));
IBuffer ^buffer = writer->DetachBuffer();

改成：

IBuffer  *CreateNativeBuffer(LPVOID lpBuffer, DWORD nNumberOfBytes)
{
 Microsoft::WRL::ComPtr<IDataWriter> pWriter;
 byte *valueBuffer = new byte[3];// { -52, 36, 51 };
 UINT32 count = 3;
 pWriter->WriteBytes(count, valueBuffer);
 IBuffer *buffer  = NULL;
 pWriter->DetachBuffer(&buffer);
 return buffer;

}

可问题是pWriter这个怎么创建？

谢谢