本文整理汇总了C#中System.Runtime.InteropServices.Marshal.FreeHGlobal方法的典型用法代码示例。如果您正苦于以下问题：C# Marshal.FreeHGlobal方法的具体用法？C# Marshal.FreeHGlobal怎么用？C# Marshal.FreeHGlobal使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Runtime.InteropServices.Marshal的用法示例。
在下文中一共展示了Marshal.FreeHGlobal方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Main
//引入命名空间
using System;
using System.IO;
using System.Reflection;
using System.Runtime.ConstrainedExecution;
using System.Runtime.InteropServices;
using Microsoft.Win32.SafeHandles;
public class MainClass
{
public static void Main()
{
IntPtr ptr = Marshal.AllocHGlobal(1024);
if (ptr != IntPtr.Zero){
Marshal.FreeHGlobal(ptr);
ptr = IntPtr.Zero;
}
}
}示例2:
// Demonstrate how to call GlobalAlloc and
// GlobalFree using the Marshal class.
IntPtr hglobal = Marshal.AllocHGlobal(100);
Marshal.FreeHGlobal(hglobal);示例3: Main
//引入命名空间
using System;
using System.Runtime.InteropServices;
class MainFunction
{
static void Main()
{
Console.WriteLine("\nStringToGlobalAnsi\n");
// Create a managed string.
String managedString = "I am a managed String";
Console.WriteLine("1) managedString = " + managedString );
// Marshal the managed string to unmanaged memory.
IntPtr stringPointer = (IntPtr)Marshal.StringToHGlobalAnsi(managedString);
Console.WriteLine("2) stringPointer = {0}", stringPointer );
// Get the string back from unmanaged memory
String RetrievedString = Marshal.PtrToStringAnsi( stringPointer);
Console.WriteLine("3) Retrieved from unmanaged memory = " + RetrievedString );
// Always free the unmanaged string.
Marshal.FreeHGlobal(stringPointer);
// IntPtr handle value is still the same:
Console.WriteLine("4) stringPointer = " + stringPointer );
// However, it contains no data after being freed:
String RetrievedString2 = Marshal.PtrToStringAnsi( stringPointer);
Console.WriteLine("5) RetrievedString2 = " + RetrievedString2 );
}
}