C#调用API

[dolo1984]

int __stdcall GetJpegImage(HANDLE hChannelHandle,UCHAR *ImageBuf,
ULONG *Size,UINT nQuality)

上面这段转成C#应该怎么写？

[liuxin159357]

试试看
public extern GetJpegImage (int, string, int, uint)

[startstartsvip]

帮顶

[lunat]

[Quote=引用楼主 dolo1984 的帖子:]
C# code
int __stdcall GetJpegImage(HANDLE hChannelHandle,UCHAR *ImageBuf,
ULONG *Size,UINT nQuality)



上面这段转成C#应该怎么写？
[/Quote]
[DllImport("yourdllname.dll")]
extern int GetJpegImage(IntPtr hChannelHandle,byte[] ImageBuf, UIntPtr Size, uint nQuality);
试试吧
那个UCHAR* 不好说..

[ICanUseThisID]

[DllImport("xxx.dll")]
public static extern int GetJpegImage(
             IntPtr hChannelHandle,
             byte[] ImageBuf,
             out uint Size,
             uint nQuality
             );

[xupeihuagudulei]

[zhouxingyu896]

同意4楼的。

[liuheng610]

顶```````

[lunat]

确实写错了 ULONG* Size...真是晕了头了..
应该是ulong[] Size吧 不确定ULONG* Size的长度(1个?多个?)