windowsAPI进程创建，打印，关闭
改编自《Windows程序设计》人民邮电出版社王艳平编著小弟改变了一下，谨此纪念
但是小弟还是有一点疑问，这个进程创建的是windows进程还是后台进程还是应用程序呢，
我想用创建进程的程序来要程序打开QQ音乐，但是打不开，发现是没有这个目标，是为什么呢，像打开cmd啊，notepad还有桌面上的HelloWorld.exe都可以的
求指教！
#include <windows.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <tlhelp32.h>
DWORD DisplayTheProcess();//函数声明
BOOL TerminateProcessFormId(DWORD dwId);
int main(int argc, char *argv[]){
char *szCommandLine = "notepad";
STARTUPINFO si = { sizeof(si) };
PROCESS_INFORMATION pi;
si.dwFlags = STARTF_USESHOWWINDOW;
si.wShowWindow = TRUE;
BOOL bRet = CreateProcess(
NULL,
szCommandLine,
NULL,
NULL,
FALSE,
CREATE_NEW_CONSOLE,
NULL,
NULL,
&si,
&pi);
DWORD dwId;//创建进程的ID，也是要关闭进程的参数ID
if (bRet){
CloseHandle(pi.hThread);
CloseHandle(pi.hProcess);
dwId = pi.dwProcessId;
MessageBox(NULL, TEXT("进程创建成功"), TEXT("消息"), MB_OKCANCEL);
}
DWORD dwResult = DisplayTheProcess();//调用函数
printf("一共有%d个进程\n", dwResult);
printf("=============================================");
MessageBox(NULL, TEXT("现在要关闭进程notepad"), TEXT("警告"), MB_ICONEXCLAMATION);
if (TerminateProcessFormId(dwId)){
printf("记事本已经关闭\n\n");
}
dwResult = DisplayTheProcess();
printf("现在一共有%d个进程\n\n", dwResult);
return 0;
}
DWORD DisplayTheProcess(){
PROCESSENTRY32 pe32;
pe32.dwSize = sizeof(pe32);
HANDLE hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
if (hProcessSnap == INVALID_HANDLE_VALUE){
printf("CreateToolhel32Snapshot调用失败!\n");
return -1;
}
BOOL bMore = Process32First(hProcessSnap, &pe32);
DWORD cnt = 0;
while (bMore){
printf("进程名称:%s\n", pe32.szExeFile);
printf("进程ID:%d\n", pe32.th32ProcessID);
bMore = Process32Next(hProcessSnap, &pe32);
cnt++;
}
CloseHandle(hProcessSnap);
return cnt;
}
BOOL TerminateProcessFormId(DWORD dwId){
BOOL bRet = FALSE;
//打开目标进程，取得进程句柄
//所有可进行的权限
HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, dwId);
if (hProcess != NULL){
bRet = TerminateProcess(hProcess, 0);//关闭进程
}
CloseHandle(hProcess);
return bRet;
}
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