C# 调用C++ Dll 函数的参数有一个cv:Mat 请问如何实现调用
C++代码
SITREACH_API int SitReachInit(const Mat matSrc, void* pAnchors, double dRange = 60, double dMinVal = -22.5,
bool bDrawAnchor = false, bool bDrawLine = false, bool bDrawContour = false);
C# 调用(直接传OpenCvSharp.Mat会报错:行了 QueryInterface 调用,请求提供 COM 可见的托管类“OpenCvSharp.Mat”的类接口。不过,由于该类是从非 COM 可见的类“OpenCvSharp.DisposableCvObject”派生的,QueryInterface 调用将失败。这样做的目的是避免非 COM 可见的基类受 COM 版本规则的约束。)
[DllImport("LibSitReach64.dll",EntryPoint = "SitReachInit", CallingConvention = CallingConvention.Cdecl)]
extern static int SitReachInit(Mat matSrc, IntPtr pointer, double dRange = 60, double dMinVal = -22.5, bool bDrawAnchor = false, bool bDrawLine = false, bool bDrawContour = false);
SitReachInit(matFrame, intptr, 60, -22.5, true, true,false)
如果传递指针,报错:类型“OpenCvSharp.Mat”不能作为非托管结构进行封送处理;无法计算有意义的大小或偏移量。
int sizeMat = Marshal.SizeOf(mat) * 1;//报错
IntPtr intptrMat = Marshal.AllocHGlobal(sizeMat);
Marshal.StructureToPtr(matFrame, intptrMat, false);
懂得大神,请问怎么做?