Hi,

I would like to call this method in unmanaged library:

void __stdcall GetConstraints(

  unsigned int* puiMaxWidth,

  unsigned int* puiMaxHeight,

  unsigned int* puiMaxBoxes

);

My solution:

• Delegate definition:

  [UnmanagedFunctionPointer(CallingConvention.StdCall)] private delegate void GetConstraintsDel(UIntPtr puiMaxWidth, UIntPtr puiMaxHeight, UIntPtr puiMaxBoxes);

• The call of the method:

  // PLUGIN NAME
  GetConstraintsDel getConstraints = (GetConstraintsDel)Marshal.GetDelegateForFunctionPointer(pAddressOfFunctionToCall, typeof(GetConstraintsDel));
  
  
   uint maxWidth, maxHeight, maxBoxes;
  
  
   unsafe
   {
      UIntPtr a = new UIntPtr(&maxWidth);
      UIntPtr b = new UIntPtr(&maxHeight);
      UIntPtr c = new UIntPtr(&maxBoxes);
      getConstraints(a, b, c);
   }
  

It works but I have to allow "unsafe" flag. Is there a solution without unsafe code? Or is this solution ok? I don't quite understand the implications of setting the project with unsafe flag.

Thanks for help!