简单的windowsTasklist

张辉 — Sat, 13 Dec 2008 02:47:00 GMT

#include 
#include 
#include "Tlhelp32.h"
int main()
{
BOOL r;
HANDLE h;
PROCESSENTRY32 pe;
//::ZeroMemory(&pe,sizeof(PROCESSENTRY32));
pe.dwSize=sizeof(PROCESSENTRY32);
h = CreateToolhelp32Snapshot(2,0);
r = Process32First(h, &pe);
while(r) {
  printf("%5d\t%s\n", pe.th32ProcessID,pe.szExeFile);
  r = Process32Next(h, &pe);
}
system("pause");
return 0;
}

#include 
#include 
typedef struct tagPROCESSENTRY32 { 
DWORD dwSize; 
DWORD cntUsage; 
DWORD th32ProcessID; 
DWORD th32DefaultHeapID; 
DWORD th32ModuleID; 
DWORD cntThreads; 
DWORD th32ParentProcessID; 
LONG pcPriClassBase; 
DWORD dwFlags; 
TCHAR szExeFile[MAX_PATH]; 
DWORD th32MemoryBase;
DWORD th32AccessKey;
} PROCESSENTRY32, *PPROCESSENTRY32;
typedef int (__stdcall *CREATETOOLHELP32SNAPSHOT) (int dw, int pid);
CREATETOOLHELP32SNAPSHOT CreateToolhelp32Snapshot;
typedef int (__stdcall *PROCESS32FIRST) (int h, int lp);
PROCESS32FIRST Process32First;
typedef int (__stdcall *PROCESS32NEXT) (int h, int lp);
PROCESS32NEXT Process32Next;
PROCESSENTRY32 x;
int main()
{
PROCESSENTRY32 pe = {0};
int h, r;
//获取API地址：
HMODULE pk = GetModuleHandleA("kernel32.dll");
CreateToolhelp32Snapshot = (CREATETOOLHELP32SNAPSHOT)GetProcAddress(pk, "CreateToolhelp32Snapshot");
Process32First = (PROCESS32FIRST)GetProcAddress(pk, "Process32First");
Process32Next = (PROCESS32NEXT)GetProcAddress(pk, "Process32Next");
h = CreateToolhelp32Snapshot(2, 0);//创建进程快照
pe.dwSize = sizeof(PROCESSENTRY32);//
r = Process32First(h, (int)&pe);//
while(r) {
printf("%5d\t%s\n", pe.th32ProcessID, pe.szExeFile);
r = Process32Next(h, (int)&pe);
}
return 0;
}

上面是原来的复杂代码
用到的结构，函数原型都自己在代码里声明
用GetProcAddress访问API
对Kernerl32.dll这样的系统库 使用GetProcAddress和使用头文件包含应该是一样的 貌似Kernel32不需要考虑动态加载 卸载的问题

张辉 2008-12-13 10:47 发表评论

通过引用防止拷贝构造的一种方法

张辉 — Sat, 13 Dec 2008 02:43:00 GMT

fun(person a)
{
}
person dd;
fun(dd);
fun(person& a)
{}
person dd;
fun(dd);

张辉 2008-12-13 10:43 发表评论

C++博客-CppWorld

简单的windowsTasklist

通过引用防止拷贝构造的一种方法