Developer Support Languages VC++, C# and VB.NET
Welcome to Microsoft Developer Support, Languages team blog! You will find a lot of language related troubleshooting resources here.
Troubleshooting PInvoke Related Issues
I am back with some more PInvoke Stuff. Recently I was working on a PInvoke issue which I found interesting.
I have a C++ dll which has a function whose signature is
int TestFunc(IN_STRUCT in_Params, RET_STRUCT * pret_Par).
I wanted to call this function from C#. Function has two arguments. First argument is input structure which will be filled from C# code and passed to C++ code. Second argument is output structure which is filled in C++ code and output to C# code.
Here are the C struct definitions and a function that needs to be marshaled
#include "stdafx.h"
#include <stdio.h>
#include "Objbase.h"
#include <malloc.h>
typedef struct IN_STRUCT
{
BYTE CMD_PType;
BYTE CMD_PTType;
BYTE CMD_OC;
BYTE CMD_Seq;
};
typedef struct RET_STRUCT
{
BYTE RET_OC;
BYTE RET_Seq;
BYTE RET_RetBytes;
char *str;
BYTE RET_PD[10];
};
extern "C" __declspec(dllexport) \
int TestFunc(IN_STRUCT in_Params, RET_STRUCT * pret_Par)
{
int iRet = 0;
pret_Par->RET_OC = in_Params.CMD_OC;
pret_Par-
相关文档：
关于使用到了两个C#关键字this和base。
1，C# "this " keyword
其作用引用类的当前实例，其实看了下面这个例子就好理解了。
主要三个作用：当前实例、参数传递和索引器
1.1 当前实例
class Team
{
///成员变量
private string name;
///构造函数
......
public string WriteXML(string[] values, int flag)
{
//如果flag==0则为第一次运行需要初始化XML文件
if (flag == 0)
{
//生在随机文件名
string dateName = System.DateTime.Now.ToString("yyyyMMddHHmmss");
......
服务器端代码
控件：btnStart_Click，btnSend_Click，label4，textBox1
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Collections;
using System.Threading;
using S ......
C#开发WPF/Silverlight动画及游戏系列教程(Game Tutorial)：目录
本系列教程的示例代码下载(感谢 银光中国 提供资源分流)：
第一部分源码：WPFGameTutorial_PartI(1-20节)
第二部分源码：WPFGameTutorial_PartII(21-26节)
第三部分源码：WPFGameTutorial_PartIII(27-30节)
第四部分源码：WPFGameTutorial_PartI ......
1 创建C# DLL，需要指定应用类型为“类库”，代码：
namespace CSLib
{
public class Class1
{
private string name;
public string Name
......
