C++实现添加桌面右键新建菜单

时间:2022-01-15 15:52:22

对于程序员来说,新建一个cpp文件是再频繁不过的事情了。

为了方便,我们习惯在桌面右键新建文件,而不是新建一个文本文档,然后修改后缀名。

百度谷歌查询了一下,终于知道如何添加注册表。

手痒,抽出时间用cpp写了一个程序,方便以后操作。

客户需求是永远无法满足的,经同学测试,陆续写了三个版本。

接下来直接贴代码~

第一个版本,只能添加c、cpp、java三种后缀。

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/*
 * Author: Haipz
 * School: HDU
 * File Name: registry1.0.cpp
 */
#include <cstdio>
#include <cmath>
#include <ctime>
#include <cctype>
#include <cstring>
#include <cstdlib>
#include <climits>
#include <cfloat>
#include <iostream>
#include <vector>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <algorithm>
using namespace std;
 
char s[1024], buffer[128], result[1024*4];
 
void work_1() {
  system("reg add \"HKEY_CLASSES_ROOT\\.c\\ShellNew\" /v \"NullFile\" /t REG_SZ");
}
 
void work_2() {
  system("reg add \"HKEY_CLASSES_ROOT\\.cpp\\ShellNew\" /v \"NullFile\" /t REG_SZ");
}
 
void work_3() {
  system("reg add \"HKEY_CLASSES_ROOT\\.java\\ShellNew\" /v \"NullFile\" /t REG_SZ");
}
 
int main() {
  printf("Add registry for C, C++ and Java\n");
  printf("Author: Haipz\nSchool: HDU\n");
  printf("1 for C;\n2 for C++;\n3 for Java.\n");
  printf("Example: 12 to add C and C++.\n");
  printf("Please make choice(s): ");
  gets(s);
  for (int i = 0; s[i] != '\0'; ++i) {
    printf("Working...\n");
    if (s[i] == '1') work_1();
    else if (s[i] == '2') work_2();
    else if (s[i] == '3') work_3();
    else printf("%c is a wrong enter!\n", s[i]);
  }
  system("pause");
  return 0;
}

第二个版本,精简了代码,支持添加用户输入的后缀。

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/*
* Author: Haipz
* School: HDU
* File Name: registry2.0.cpp
*/
#include <cstdio>
#include <cmath>
#include <ctime>
#include <cctype>
#include <cstring>
#include <cstdlib>
#include <climits>
#include <cfloat>
#include <iostream>
#include <vector>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <algorithm>
using namespace std;
 
char a[1024];
char b[1024] = "reg add \"HKEY_CLASSES_ROOT\\.";
char c[1024] = "\\ShellNew\" /v \"NullFile\" /t REG_SZ";
 
void work(char* a) {
  strcat(b, a);
  strcat(b, c);
  system(b);
}
 
int main() {
  printf("Function: Add registry to build a new file simply!\n");
  printf("Author: Haipz\nSchool: HDU\n");
  printf("Example: Enter c to add C and enter cpp to add C++.\n");
  printf("Your opion: ");
  gets(a);
  work(a);
  system("pause");
  return 0;
}

第三个版本,支持多次添加,并允许删除已添加的注册表。

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/*
 * Author: Haipz
 * School: HDU
 * File Name: registry2.0.cpp
 */
#include <cstdio>
#include <cmath>
#include <ctime>
#include <cctype>
#include <cstring>
#include <cstdlib>
#include <climits>
#include <cfloat>
#include <iostream>
#include <vector>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <algorithm>
using namespace std;
 
char key[1024];
char a[1024];
 
void add(char* t) {
  char b[1024] = "reg add \"HKEY_CLASSES_ROOT\\.";
  char c[1024] = "\\ShellNew\" /v \"NullFile\" /t REG_SZ";
  strcat(b, t);
  strcat(b, c);
  system(b);
}
 
void del(char* t) {
  char d[1024] = "reg delete \"HKEY_CLASSES_ROOT\\.";
  char e[1024] = "\\ShellNew\" /f";
  strcat(d, t);
  strcat(d, e);
  system(d);
}
 
int main() {
  printf("Function: Build a new file simply!\n");
  printf("Author: Haipz\nSchool: HDU\n");
  printf("Example: Enter \"c\" to add C and enter \"cpp\" to add C++;\n");
  printf("     Enter \"-c\" to delete C.\n");
  do {
    printf("Your opion: ");
    gets(a);
    if (a[0] == '-') del(a + 1);
    else add(a);
    printf("Enter \"r\" to run again or any other key to quit: ");
    gets(key);
  } while (key[0] == 'r');
  return 0;
}

打包下载地址:

Regedity.zip

注意,如果系统提示缺少某dll文件,请到网上下载,并复制到C:\Windows\System32目录下。