C# (CSharp) GraphSafeHandle示例

示例#1

 public static extern int gvRenderFilename(GraphvizContextSafeHandle graphVizContextPtr, GraphSafeHandle graphPtr, [MarshalAs(UnmanagedType.LPStr)] char[] imageFormat, [MarshalAs(UnmanagedType.LPStr)] char[] outputFilePath);

示例#2

 public static extern int gvLayout(GraphvizContextSafeHandle graphVizContextPtr, GraphSafeHandle graphPtr, [MarshalAs(UnmanagedType.LPStr)] char[] layoutEngine);

示例#3

 public static extern int gvFreeLayout(GraphvizContextSafeHandle graphVizContextPtr, GraphSafeHandle graphPtr);

示例#4

 public static extern int gvRenderData(GraphvizContextSafeHandle graphVizContextPtr, GraphSafeHandle graphPtr, [MarshalAs(UnmanagedType.LPStr)] char[] imageFormat, out IntPtr renderDataResultPtr, out uint renderDataLength);