获取 'the type or namespace name' 尝试在 Unity3d 中进行 DllImport

Question

错误

Assets/Scripts/osx.cs(4,16): error CS0246: The type or namespace name `CoreGraphics' could not be found. Are you missing an assembly reference?

我的代码：

[DllImport ("/System/Library/Frameworks/CoreGraphics.framework/CoreGraphics")]
static extern CoreGraphics.CGSize CGDisplayScreenSize (uint display);

如何从 Unity3d 访问外部库？具体来说 CoreGraphics 对于 CGDisplayScreenSize.

Answer 1

定义 ObjC return 类型，CoreGraphics.CGSize 用 C# 类型定义，你会没事的。

[Serializable]
public struct MyCGSize
{
    public nfloat width;
    public nfloat height;
}

[DllImport("/System/Library/Frameworks/CoreGraphics.framework/CoreGraphics")]
static extern MyCGSize CGDisplayScreenSize(uint display);

获取 'the type or namespace name' 尝试在 Unity3d 中进行 DllImport

Getting 'the type or namespace name' trying to DllImport in Unity3d

mono

dllimport

unity3d