本文整理匯總了C#中System.IO.MemoryMappedFiles.MemoryMappedFile.OpenExisting方法的典型用法代碼示例。如果您正苦於以下問題：C# MemoryMappedFile.OpenExisting方法的具體用法？C# MemoryMappedFile.OpenExisting怎麽用？C# MemoryMappedFile.OpenExisting使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.IO.MemoryMappedFiles.MemoryMappedFile的用法示例。
在下文中一共展示了MemoryMappedFile.OpenExisting方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: Main
//引入命名空間
using System;
using System.IO.MemoryMappedFiles;
using System.Runtime.InteropServices;
class Program
{
static void Main(string[] args)
{
// Assumes another process has created the memory-mapped file.
using (var mmf = MemoryMappedFile.OpenExisting("ImgA"))
{
using (var accessor = mmf.CreateViewAccessor(4000000, 2000000))
{
int colorSize = Marshal.SizeOf(typeof(MyColor));
MyColor color;
// Make changes to the view.
for (long i = 0; i < 1500000; i += colorSize)
{
accessor.Read(i, out color);
color.Brighten(20);
accessor.Write(i, ref color);
}
}
}
}
}
public struct MyColor
{
public short Red;
public short Green;
public short Blue;
public short Alpha;
// Make the view brigher.
public void Brighten(short value)
{
Red = (short)Math.Min(short.MaxValue, (int)Red + value);
Green = (short)Math.Min(short.MaxValue, (int)Green + value);
Blue = (short)Math.Min(short.MaxValue, (int)Blue + value);
Alpha = (short)Math.Min(short.MaxValue, (int)Alpha + value);
}
}