windows 下在进程中使用createprocess创建一个窗口进程，并获取这个窗口HWND句柄

2022-04-07 05:36:57

windows 下在一个进程中使用createprocess创建一个窗口进程，并获取这个窗口的HWND句柄

C++使用createprocess创建一个窗口进程，并获取这个窗口的HWND句柄。

主要思路是：

定义getDwProcessId函数，用于监听创建子窗口的活动。
定义EnumWindowsProcGetWndTitle回调函数，用于捕获子窗口句柄。
把捕获的句柄赋值给全局变量，用于主函数执行子窗口操作。

图例如下：

示例如下：

程序入口点代码

```c++
//zhaoanan 
#pragma warning (disable : 4786)
#include "stdafx.h"
#include <stdlib.h>
#include <winsock2.h>
#include <iostream>
#include <vector>
#include <string>
#include <fstream>
#include <stdio.h>
#include <windows.h>
#include "RemoteCompileSFunc.h"

#pragma comment(lib, "Kernel32.lib")
using namespace std;

#define RECEIVE_BUFFER_LEN 50

#pragma comment(lib,"ws2_32.lib")

void Build80Zc(const string& sExe, const string& sPath, const string& sCmd);
BOOL CALLBACK EnumWindowsProcGetWndTitle(HWND hWnd, LPARAM lParam);
DWORD getDwProcessId(DWORD g_dwProcessId);
HWND g_hWnd = NULL;
int main(int argc, char* argv[])
{
   //执行make clean ab命令
   Build80Zc("C:\\WindRiver3\\wrenv.exe -p vxworks-cert-6.6.3.1", "cd C:\\src\\workspace\\FAO_ZC_VXW_AB_TEST\\cert", "make clean >> C:\\src\\workspace\\FAO_ZC_VXW_AB_TEST\\compile.txt");
   //执行make all ab命令
   Build80Zc("C:\\WindRiver3\\wrenv.exe -p vxworks-cert-6.6.3.1", "cd C:\\src\\workspace\\FAO_ZC_VXW_AB_TEST\\cert", "make all >> C:\\src\\workspace\\FAO_ZC_VXW_AB_TEST\\compile.txt");
   //执行make clean c命令
   Build80Zc("C:\\WindRiver\\wrenv.exe -p vxworks-6.9","cd C:\\src\\workspace\\dtsApp\\SIMNTdiab_SMP","make clean>>C:\\src\\workspace\\dtsApp\\compile.txt");
   //执行make all c命令
Build80Zc("C:\\WindRiver\\wrenv.exe -p vxworks-6.9","cd C:\\src\\workspace\\dtsApp\\SIMNTdiab_SMP","make all>>C:\\src\\workspace\\dtsApp\\compile.txt");
   return 0;
}

BOOL CALLBACK EnumWindowsProcGetWndTitle(HWND hWnd, LPARAM lParam)
{
DWORD ProcID = 0;
GetWindowThreadProcessId(hWnd, &ProcID);
cout << "传入窗口的进程id：" << lParam << "当前窗口的进程id：" << ProcID << endl;
cout << "当前窗口句柄：" << hWnd << endl;
if (ProcID == lParam)//如果窗口的processid等于你的ID
{
    HWND pWnd = GetParent(hWnd);
    cout << "第一父窗口句柄：" << pWnd << endl;
    while (GetParent(pWnd) != NULL)//得到父窗口的句柄
    {
        pWnd = GetParent(pWnd);
        cout << "父窗口句柄：" << pWnd << endl;
    }
    if (pWnd != NULL) 
    {
        g_hWnd = pWnd;
    } else 
    {
        g_hWnd = hWnd;
    }
    cout << "最终父窗口句柄：" << g_hWnd << endl;
    //ok ?pWnd 就是主窗口了。
    return FALSE;
}
return TRUE;
}

DWORD getDwProcessId(DWORD g_dwProcessId)
{
int nNumberDely = 1000;
// 等待窗口动行起，获取到窗口HWND
while(EnumWindows(EnumWindowsProcGetWndTitle,g_dwProcessId) && nNumberDely>0 )
{
    nNumberDely--;
}
return g_dwProcessId;
}

void Build80Zc(const string& sExe, const string& sPath, const string& sCmd)
{
string::size_type idx;
STARTUPINFO si;
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
memset(&si, 0, sizeof(STARTUPINFO));
si.cb = sizeof(STARTUPINFO);
si.dwFlags = STARTF_USESHOWWINDOW;
si.wShowWindow = SW_SHOW;
PROCESS_INFORMATION pi;
ZeroMemory(&pi, sizeof(pi));
idx = sPath.find("FAO_ZC_VXW_AB_TEST");
if (idx == string::npos){
    CreateProcess(NULL, "C:\\WindRiver\\wrenv.exe -p vxworks-6.9", NULL, NULL, FALSE, CREATE_NEW_CONSOLE, NULL, NULL, &si, &pi);
    cout << "打开C机编译器" << endl;
}
else{
    CreateProcess(NULL, "C:\\WindRiver3\\wrenv.exe -p vxworks-cert-6.6.3.1", NULL, NULL, FALSE, CREATE_NEW_CONSOLE, NULL, NULL, &si, &pi);
    cout << "打开AB机编译器" << endl;
}
Sleep(1000);
DWORD g_dwProcessId = pi.dwProcessId;
DWORD dwProcessId = getDwProcessId(g_dwProcessId);
   //查找当前窗口句柄需要一定的枚举时间，经过测试5s之内能枚举完成
Sleep(5000);
char* buf = (char*)sPath.c_str();
int i;
for (i = 0; i < strlen(buf); i++)
{
    ::SendMessage(g_hWnd, WM_IME_CHAR, buf[i], 0);
}
::SendMessage(g_hWnd, WM_IME_CHAR, 13, 0);
Sleep(1000);
buf = (char*)sCmd.c_str();
for (i = 0; i < strlen(buf); i++)
{
    ::SendMessage(g_hWnd, WM_IME_CHAR, buf[i], 0);
}
::SendMessage(g_hWnd, WM_IME_CHAR, 13, 0);
idx = sCmd.find("clean");
if (idx == string::npos){
    Sleep(120000);
}
else{Sleep(5000); }
const string& gaoci = "exit";
buf = (char*)gaoci.c_str();
for (i = 0; i < strlen(buf); i++)
{
    ::SendMessage(g_hWnd, WM_IME_CHAR, buf[i], 0);
}
::SendMessage(g_hWnd, WM_IME_CHAR, 13, 0);

//终止进程
if (pi.hProcess)
{
    cout << "开始关闭编译器" << endl;
    DWORD dwEC = 0;
    BOOL b = GetExitCodeProcess(pi.hProcess, &dwEC);
    if (b)
    {
        if (!TerminateProcess(pi.hProcess, dwEC))
        { cout << "强行关闭编译器" << endl; }
    }
    CloseHandle(pi.hProcess);
    cout << "关闭编译器成功" << endl;
}
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
ZeroMemory(&pi, sizeof(pi));
}

定义getDwProcessId函数，用于监听创建子窗口的活动：

```c++
//监听创建子窗口的活动
DWORD getDwProcessId(DWORD g_dwProcessId)
{
int nNumberDely = 1000;
// 等待窗口动行起，获取到窗口HWND
while(EnumWindows(EnumWindowsProcGetWndTitle,g_dwProcessId) && nNumberDely>0 )
{
    nNumberDely--;
}
return g_dwProcessId;
}

定义EnumWindowsProcGetWndTitle回调函数，用于捕获子窗口句柄：

```c++
//定义EnumWindowsProcGetWndTitle回调函数，用于捕获子窗口句柄
BOOL CALLBACK EnumWindowsProcGetWndTitle(HWND hWnd, LPARAM lParam)
{
DWORD ProcID = 0;
GetWindowThreadProcessId(hWnd, &ProcID);
cout << "传入窗口的进程id：" << lParam << "当前窗口的进程id：" << ProcID << endl;
cout << "当前窗口句柄：" << hWnd << endl;
if (ProcID == lParam)//如果窗口的processid等于你的ID
{
    HWND pWnd = GetParent(hWnd);
    cout << "第一父窗口句柄：" << pWnd << endl;
    while (GetParent(pWnd) != NULL)//得到父窗口的句柄
    {
        pWnd = GetParent(pWnd);
        cout << "父窗口句柄：" << pWnd << endl;
    }
    if (pWnd != NULL) 
    {
        g_hWnd = pWnd;
    } else 
    {
        g_hWnd = hWnd;
    }
    cout << "最终父窗口句柄：" << g_hWnd << endl;
    //ok ?pWnd 就是主窗口了。
    return FALSE;
}
return TRUE;
}

参考意见和网页地址：
1. https://blog.csdn.net/moshang005/article/details/37932455

windows 下在进程中使用createprocess创建一个窗口进程，并获取这个窗口HWND句柄

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