enddialog

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本文介绍了EndDialog函数的功能及使用方法，该函数用于清除模态对话框并终止对话框的处理流程。文章详细解释了函数参数及其返回值的意义，并说明了在不同情况下的行为表现。
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    函数原型：BOOL EndDialog(HWND hDlg,int nResult);

    参数：

    hDlg：表示要被清除的对话框窗口。

    NResult：指定从创建对话框函数返回到应用程序的值。

    返回值：如果函数调用成功，则返回值为非零值；如果函数调用失败则返回值为零。若想获得错误信息请调用GetLastError函数。

    备注：由DialogBox，DialogBoxParam、DialogBoxlndirect和DialogBoxlndirectParam函数创建的对话框一定要用EndDialog函数来清除。应用程序从对话框应用程序内部调用EndDialog函数，该函数不能为其他目的而供使用。对话框应用程序可以在任何时间调用EndDialog函数；甚至在WM_INITDIALOG消息处理过程中。如果应用程序在WM_INTDIALOG消息处理过程中调用该函数，则对话框在显示和输入焦点被设置之前对话框被清除。EndDialog函数并不立即清除对话框。而是设置一个标志，并且允许对话框应用程序把控制权返回系统。系统在试图从应用程序队列检索下一个消息之前检测标志。如果已经设置了标志则系统中止消息循环,清除对话框,且用nResUlt中的值作为从创建对话框的函数中返回的值。

    速查：Windows NT：3.1及以上版本；Windows：95及以上版本；Windows CE：1.0及以上版本；头文件：winuser.h；库文件：user32.lib。
Windows API 之 EndDialog
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EndDialog，销毁模式对话框，导致系统结束对对话框的任何处理。
windows对话框窗口DialogBox模式对话框、EndDialog、CreateDialog非模式对话框、DestroyWindow、WM_INITDIALOG
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windows对话框窗口DialogBox模式对话框创建、EndDialog模式对话销毁、CreateDialog非模式对话框、DestroyWindow非模式对话框销毁、WM_INITDIALOG对话框创建消息与WM_CREATE消息不同
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上一次介绍了怎么样显示对话框的函数，那么怎么样关闭对话框呢？这就需要使用到函数EndDialog。这个函数只能在对话框的消息处理函数里使用，并且这个函数调用之后，没有立即就删除对话框的，而是设置了操作系统里的结束标志。当操作系统查检到有这个标志时，就去删除对话框的消息循环，同时也去释放对话框占用的资源。其实对话框的生命周期是这样的，先由函数DialogBox创建对话框，这样函数Dialo...
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      函数功能：该函数清除一个模态对话框,并使系统中止对对话框的任何处理。    函数原型：BOOL EndDialog(HWND hDlg,int nResult);    参数：    hDlg：表示要被清除的对话框窗口。    NResult：指定从创建对话框函数返回到应用程序的值。    返回值：如果函数调用成功，则返回值为非零值；如果函数调用失败则返回值为零。若想获得错误信息请调用
OnOk,OnCeal ,onClose Ondestry
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第一，OnOK()和OnCancel()是CDialog基类的成员函数，而OnClose()和OnDestroy()是CWnd基类的成员函数，即WM消息响应函数。从应用程序结构的角度，拿对话框来说，红色的X对应的是CWnd,而处于对话框中的“确定”、“取消”按钮则对应了CDial
#include <winsock2.h> #include <ws2tcpip.h> #include<windows.h> #include<commCtrl.h> #include"resource.h" #include <wincrypt.h> #include<atlstr.h> #include<string> #include <gdiplus.h> #include <algorithm> #pragma comment(lib, "gdiplus.lib") #pragma comment(lib,"ws2_32.lib") // 全局变量 SOCKET g_clientSocket = INVALID_SOCKET; // 全局套接字，保持连接 bool g_isConnected = false; // 连接状态标志 WCHAR g_szAccount[32] = { 0 }; // 账号 WCHAR g_szPassword[32] = { 0 }; // 密码 WCHAR g_szNickname[32] = { 0 }; // 昵称 WCHAR g_szGender[16] = { 0 }; // 性别 WCHAR g_szAge[8] = { 0 }; // 年龄 WCHAR g_szSignature[128] = { 0 }; // 个性签名 BYTE* g_pImageData = NULL;//储存头像的二进制数据// DWORD g_dwImageSize = 0;//数据大小// int passwd_back_to_account = 0;//账号是否已产生，防止密码设置时，按下取消键，回到账号生成框后，重新生成账号// INT_PTR CALLBACK Dialog_one(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//初始化对话框// { static UINT_PTR TimeID = 0;//启用定时器// static HBRUSH hBackgroundBrush = NULL;//背景画刷// static HBITMAP hBmp = NULL;//位图句柄// switch (uMsg) { case WM_INITDIALOG: //SetDlgItemText(hwndDlg, IDC_EDIT3, L"Welcome to QQ");//第一个对话框的内容// TimeID = SetTimer(hwndDlg, 1, 4000, NULL);//显示第一个对话框的内容，延迟3秒// hBackgroundBrush = CreateSolidBrush((RGB(200, 230, 255)));//设置背景为淡蓝色// hBmp = (HBITMAP)LoadImage(NULL, L"image_one.bmp", IMAGE_BITMAP, 200, 170, LR_LOADFROMFILE);//加载图片位置// if (hBmp) { SendDlgItemMessage(hwndDlg, IDC_MY_IMAGE_ONE, STM_SETIMAGE, IMAGE_BITMAP, (LPARAM)hBmp); } else { MessageBox(hwndDlg, L"image lost", L"QQ", MB_ICONERROR); } return (INT_PTR)TRUE;//设置焦点// case WM_DRAWITEM: { DRAWITEMSTRUCT* pdis = (DRAWITEMSTRUCT*)lParam; if (pdis->CtlID == IDC_CUSTOM_TEXT) { SetTextColor(pdis->hDC, RGB(255, 0, 0)); DrawText(pdis->hDC, L"Welcome to QQ", -1, &pdis->rcItem,//对话框标题// DT_CENTER | DT_VCENTER); } return (INT_PTR)TRUE; } case WM_CTLCOLORDLG: return (INT_PTR)hBackgroundBrush; case WM_COMMAND: if (LOWORD(wParam) == IDSTART) { EndDialog(hwndDlg, IDOK);//关闭对话框// } return (INT_PTR)TRUE; /*case WM_TIMER: if (wParam == 1) { EndDialog(hwndDlg, IDOK);//关闭对话框// } return (INT_PTR)TRUE; */ case WM_DESTROY: KillTimer(hwndDlg, TimeID);//销毁定时器// DeleteObject(hBackgroundBrush);//释放画刷// DeleteObject(hBmp);//释放位图资源// EndDialog(hwndDlg, IDCANCEL);//关闭对话框// break; case WM_CLOSE: EndDialog(hwndDlg, IDEND);//关闭对话框// break; } return (INT_PTR)FALSE; } INT_PTR CALLBACK Dialog_end(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//结束对话框// { static UINT_PTR TimeID = 0;//启用定时器// static HBRUSH hBackgroundBrush = NULL;//背景画刷// static HBITMAP hBmp = NULL;//位图句柄// switch (uMsg) { case WM_INITDIALOG: TimeID = SetTimer(hwndDlg, 1, 4000, NULL);//显示第一个对话框的内容，延迟3秒// hBackgroundBrush = CreateSolidBrush((RGB(200, 230, 255)));//设置背景为淡蓝色// return (INT_PTR)TRUE;//设置焦点// case WM_DRAWITEM: { DRAWITEMSTRUCT* pdis = (DRAWITEMSTRUCT*)lParam; if (pdis->CtlID == IDC_CUSTOM_TEXT_TWO) { SetTextColor(pdis->hDC, RGB(255, 0, 0)); DrawText(pdis->hDC, L"Goodbye", -1, &pdis->rcItem,//对话框标题// DT_CENTER | DT_VCENTER); } return (INT_PTR)TRUE; } case WM_CTLCOLORDLG: return (INT_PTR)hBackgroundBrush; case WM_TIMER: if (wParam == 1) { KillTimer(hwndDlg, TimeID);//销毁定时器// DeleteObject(hBackgroundBrush);//释放画刷// EndDialog(hwndDlg, IDOK);//关闭对话框// } return (INT_PTR)TRUE; case WM_CLOSE: EndDialog(hwndDlg, IDEND);//关闭对话框// break; } return (INT_PTR)FALSE; } INT_PTR CALLBACK Dialog_two(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//登录和注册选择框// { passwd_back_to_account = 0; switch (uMsg) { case WM_INITDIALOG: return (INT_PTR)TRUE; case WM_COMMAND: switch (LOWORD(wParam)) { case IDLOGIN: EndDialog(hwndDlg, IDLOGIN); return (INT_PTR)TRUE; case IDREGISTER: EndDialog(hwndDlg, IDREGISTER); return (INT_PTR)TRUE; }break; case WM_CLOSE: EndDialog(hwndDlg, IDCANCEL); return (INT_PTR)TRUE; } return (INT_PTR)FALSE; } INT_PTR CALLBACK Dialog_three(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//登录框// { static bool EDIT1 = FALSE; static bool EDIT2 = FALSE; HWND hEdit = NULL; switch (uMsg) { case WM_INITDIALOG: SetDlgItemText(hwndDlg, IDC_EDIT3, L"账号"); SetDlgItemText(hwndDlg, IDC_EDIT4, L"密码"); SetDlgItemText(hwndDlg, IDC_EDIT1, L"账号"); SetDlgItemText(hwndDlg, IDC_EDIT2, L"密码"); SendMessage(GetDlgItem(hwndDlg, IDC_EDIT1), WM_SETFONT, (WPARAM)GetStockObject(DEFAULT_GUI_FONT), TRUE); SendMessage(GetDlgItem(hwndDlg, IDC_EDIT2), WM_SETFONT, (WPARAM)GetStockObject(DEFAULT_GUI_FONT), TRUE); return (INT_PTR)TRUE; case WM_CTLCOLOREDIT://设置水印文字// hEdit = (HWND)lParam; if (!EDIT1 && hEdit == GetDlgItem(hwndDlg, IDC_EDIT1)) { SetTextColor((HDC)wParam,RGB(200,200,200)); return (LRESULT)GetSysColorBrush(COLOR_WINDOW); } if (!EDIT2 && hEdit == GetDlgItem(hwndDlg, IDC_EDIT2)) { SetTextColor((HDC)wParam, RGB(200, 200, 200)); return (LRESULT)GetSysColorBrush(COLOR_WINDOW); }break; case WM_COMMAND: switch (LOWORD(wParam)) { case IDC_EDIT1: if (HIWORD(wParam) == EN_SETFOCUS && !EDIT1) { SetDlgItemText(hwndDlg, IDC_EDIT1, L""); EDIT1 = TRUE; } else if (HIWORD(wParam) == EN_KILLFOCUS) { if (GetWindowTextLength(GetDlgItem(hwndDlg, IDC_EDIT1)) == 0) { SetDlgItemText(hwndDlg, IDC_EDIT1, L"账号"); EDIT1 = FALSE; } }break; case IDC_EDIT2: if (HIWORD(wParam) == EN_SETFOCUS && !EDIT2) { SetDlgItemText(hwndDlg, IDC_EDIT2, L""); EDIT2 = TRUE; } else if (HIWORD(wParam) == EN_KILLFOCUS) { if (GetWindowTextLength(GetDlgItem(hwndDlg, IDC_EDIT2)) == 0) { SetDlgItemText(hwndDlg, IDC_EDIT2, L"账号"); EDIT2 = FALSE; } }break; case IDOK: //服务器验证账号密码的有效性// MessageBox(hwndDlg, L"服务器正在验证账号密码的有效性", L"QQ", MB_ICONINFORMATION); MessageBox(hwndDlg, L"登录成功", L"QQ", MB_ICONINFORMATION); EndDialog(hwndDlg, IDOK); return (INT_PTR)TRUE; case IDCANCEL: EndDialog(hwndDlg, IDCANCEL); return (INT_PTR)TRUE; } } return (INT_PTR)FALSE; } int Generate_register_number()//产生账号// { HCRYPTPROV hProvider = 0; CryptAcquireContext(&hProvider, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT); long long randomNum = 0; CryptGenRandom(hProvider, sizeof(randomNum), (BYTE*)&randomNum);//randomNum接收产生的随机数// CryptReleaseContext(hProvider, 0); int num=abs(randomNum % 9000000000) + 1000000000; // 转换为10位数 if (num > 0) return num; else if (num <= 0) return -num; } INT_PTR CALLBACK Dialog_four(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//注册框// { static long long num = 0; DRAWITEMSTRUCT* pdis = NULL; CString str; switch (uMsg) { case WM_INITDIALOG: SetDlgItemText(hwndDlg, IDC_EDIT5, L"服务器分配给你的账号"); if (passwd_back_to_account == 0) { num = Generate_register_number(); } str.Format(L"%lld", num); wcscpy_s(g_szAccount,32,str);//将账号保存到全局变量g_szAccount// SetDlgItemText(hwndDlg, IDC_EDIT6,str); return (INT_PTR)TRUE; case WM_COMMAND: switch (LOWORD(wParam)) { case IDGOON: EndDialog(hwndDlg, IDGOON); return (INT_PTR)TRUE; case IDCANCEL: EndDialog(hwndDlg, IDCANCEL); return (INT_PTR)TRUE; } } return (INT_PTR)FALSE; } INT_PTR CALLBACK Dialog_five(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//密码设置框// { switch (uMsg) { case WM_INITDIALOG: SetDlgItemText(hwndDlg, IDC_EDIT9, L"密码设置"); SetDlgItemText(hwndDlg, IDC_EDIT10, L"密码确认"); return (INT_PTR)TRUE; case WM_COMMAND: switch (LOWORD(wParam)) { case IDFINISH: // 获取密码并验证 WCHAR szPassword1[32], szPassword2[32]; GetDlgItemText(hwndDlg, IDC_EDIT7, szPassword1, 32); GetDlgItemText(hwndDlg, IDC_EDIT8, szPassword2, 32); if (szPassword1[0] == '\0') { MessageBox(NULL, L"密码不能为空", L"QQ", MB_ICONERROR); SetFocus(GetDlgItem(hwndDlg, IDC_EDIT7)); return (INT_PTR)TRUE; } if (wcscmp(szPassword1, szPassword2) != 0)//比较前后两次设置的密码是否相同// { MessageBox(hwndDlg, L"两次输入的密码不一致，请重新输入", L"QQ", MB_ICONERROR); SetDlgItemText(hwndDlg, IDC_EDIT8, L"");//清除密码// SetFocus(GetDlgItem(hwndDlg, IDC_EDIT8)); return (INT_PTR)TRUE; } // 保存密码到全局变量 wcscpy_s(g_szPassword, szPassword1); MessageBox(hwndDlg, L"密码已成功设置", L"QQ", MB_ICONINFORMATION); EndDialog(hwndDlg, IDFINISH); return (INT_PTR)TRUE; case IDCANCEL: passwd_back_to_account = 1;//账号已生成标志// EndDialog(hwndDlg, IDCANCEL); return (INT_PTR)TRUE; } } return (INT_PTR)FALSE; } INT_PTR CALLBACK Dialog_six(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//注册成功框// { switch (uMsg) { case WM_INITDIALOG: SetDlgItemText(hwndDlg, IDC_EDIT11, L"注册成功,按下“确认”即可跳转到到登录界面."); return (INT_PTR)TRUE; case WM_COMMAND: switch (LOWORD(wParam)) { case IDOK: EndDialog(hwndDlg, IDOK); return (INT_PTR)TRUE; case IDCANCEL: EndDialog(hwndDlg, IDCANCEL); return (INT_PTR)TRUE; } } return (INT_PTR)FALSE; } INT_PTR CALLBACK Dialog_seven(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//注册时个人信息框// { switch (uMsg) { case WM_INITDIALOG: SetDlgItemText(hwndDlg, IDC_EDIT19, L"昵称"); SetDlgItemText(hwndDlg, IDC_EDIT12, L"性别"); SetDlgItemText(hwndDlg, IDC_EDIT13, L"年龄"); SetDlgItemText(hwndDlg, IDC_EDIT14, L"个性签名"); return (INT_PTR)TRUE; case WM_COMMAND: switch (LOWORD(wParam)) { case IDOK: // 获取所有个人信息 GetDlgItemText(hwndDlg, IDC_EDIT15, g_szNickname, 32);//将昵称保存到全局变量g_szNickname// GetDlgItemText(hwndDlg, IDC_EDIT16, g_szGender, 16);//将性别保存到全局变量g_szGender// GetDlgItemText(hwndDlg, IDC_EDIT17, g_szAge, 8);//将年龄保存到全局变量g_szAge// GetDlgItemText(hwndDlg, IDC_EDIT18, g_szSignature, 128);//将个性签名保存到全局变量g_szNickname// if (g_szNickname[0] == '\0') { MessageBox(NULL, L"昵称未设置", L"QQ", MB_ICONERROR); SetFocus(GetDlgItem(hwndDlg, IDC_EDIT19)); return (INT_PTR)TRUE; } if (g_szGender[0] == '\0'||(wcscmp(g_szGender,L"男")!=0)&&(wcscmp(g_szGender, L"女")!=0)) { if(g_szGender[0] == '\0') MessageBox(NULL, L"性别未设置", L"QQ", MB_ICONERROR); else if(wcscmp(g_szGender,L"男")!=0 && wcscmp(g_szGender, L"女")!=0) MessageBox(NULL, L"性别设置错误，性别只能是‘男’或者‘女'", L"QQ", MB_ICONERROR); SetFocus(GetDlgItem(hwndDlg, IDC_EDIT12)); return (INT_PTR)TRUE; } if (g_szAge[0] == '\0') { MessageBox(NULL, L"年龄未设置", L"QQ", MB_ICONERROR); SetFocus(GetDlgItem(hwndDlg, IDC_EDIT13)); return (INT_PTR)TRUE; } if (g_szSignature[0] == '\0') { MessageBox(NULL, L"个性签名未设置", L"QQ", MB_ICONERROR); SetFocus(GetDlgItem(hwndDlg, IDC_EDIT14)); return (INT_PTR)TRUE; } // 再次获取所有个人信息 GetDlgItemText(hwndDlg, IDC_EDIT15, g_szNickname, 32);//将昵称保存到全局变量g_szNickname// GetDlgItemText(hwndDlg, IDC_EDIT16, g_szGender, 16);//将性别保存到全局变量g_szGender// GetDlgItemText(hwndDlg, IDC_EDIT17, g_szAge, 8);//将年龄保存到全局变量g_szAge// GetDlgItemText(hwndDlg, IDC_EDIT18, g_szSignature, 128);//将个性签名保存到全局变量g_szNickname// EndDialog(hwndDlg, IDOK); return (INT_PTR)TRUE; case IDCANCEL: EndDialog(hwndDlg, IDCANCEL); return (INT_PTR)TRUE; } } return (INT_PTR)FALSE; } WCHAR g_szPhotoPath[MAX_PATH] = L""; HBITMAP g_hBitmap = NULL;//HBITMAP 是位图的句柄类型// HBITMAP LoadImageFileToBitmap(HWND hwnd, LPCWSTR path, int width, int height)//加载头像,LPCWSTR指向常量宽字符字符串的长指针// { using namespace Gdiplus; static ULONG_PTR gdiplusToken = 0; if (!gdiplusToken) //检查GDI+是否初始化// { GdiplusStartupInput gdiplusStartupInput; GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL); } Bitmap bmp(path);//加载图片// if (bmp.GetLastStatus() != Ok) //检查bmp最近最后一次的操作状态是否成功，即加载图片是否成功// return NULL; // 缩放到控件大小 Bitmap* pThumb = new Bitmap(width, height, bmp.GetPixelFormat());//bmp.GetPixelFormat获取位图的像素格式// Graphics g(pThumb);//Graphics是GDI+的核心绘图类，封装了所有绘图操作；g是定义的Graphics的对象名;pThumb:指向Bitmap对象的指针// g.DrawImage(&bmp, 0, 0, width, height);//进行图像绘制// HBITMAP hBmp = NULL; pThumb->GetHBITMAP(Color(200,230,255), &hBmp); delete pThumb; //读取文件// HANDLE hFile = CreateFile(path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL, NULL); if (hFile == INVALID_HANDLE_VALUE) { MessageBox(NULL, L"读取头像文件失败", L"QQ",MB_ICONERROR); return hBmp; } else { g_dwImageSize = GetFileSize(hFile, NULL);//获取数据大小// g_pImageData = new BYTE[g_dwImageSize]; DWORD dwREAD; ReadFile(hFile, g_pImageData, g_dwImageSize, &dwREAD, NULL);//将图片文件存储在g_pImageData中// CloseHandle(hFile);//释放文件句柄// } return hBmp; } INT_PTR CALLBACK Dialog_eight(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//头像上传框// { OPENFILENAME ofn = { 0 };//初始化文件对话框// WCHAR szFile[MAX_PATH] = L"";//头文件<windows.h>包含了MAX_PATH的定义// switch (uMsg) { case WM_INITDIALOG: g_szPhotoPath[0] = 0; if (g_hBitmap) { DeleteObject(g_hBitmap); g_hBitmap = NULL; } return (INT_PTR)TRUE; case WM_COMMAND: switch (LOWORD(wParam)) { case IDPHOTO: ofn.lStructSize = sizeof(ofn); ofn.hwndOwner = hwndDlg; ofn.lpstrFilter = L"图片文件 (*.jpg;*.png)\0*.jpg;*.png\0所有文件 (*.*)\0*.*\0"; ofn.lpstrFile = szFile;//保存图片路径// ofn.nMaxFile = MAX_PATH; ofn.Flags = OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST; if (GetOpenFileName(&ofn)) { // 检查扩展名 std::wstring path = szFile;//获取图片了路径// auto pos = path.find_last_of(L'.');//在字符串中从后向前查找最后一个.字符的位置// if (pos == std::wstring::npos) { MessageBox(hwndDlg, L"文件无扩展名，无法识别", L"QQ", MB_OK | MB_ICONERROR); break; } std::wstring ext = path.substr(pos);//获取扩展名// std::transform(ext.begin(), ext.end(), ext.begin(), ::towlower);//将扩展名的字符转化为小写，towlower所要进行的操作// if (ext != L".jpg" && ext != L".png") { MessageBox(hwndDlg, L"仅支持jpg和png", L"QQ", MB_OK | MB_ICONWARNING); break; } // 保存路径 wcsncpy_s(g_szPhotoPath, szFile, _TRUNCATE);//将szFile里的路径保存到g_szPhotoPath,_TRUNCATE允许截断路径，防止溢出目标缓冲区// // 加载并显示到静态控件 if (g_hBitmap) { DeleteObject(g_hBitmap); g_hBitmap = NULL; } RECT rc;//rc的坐标是屏幕坐标// GetWindowRect(GetDlgItem(hwndDlg, IDC_MY_IMAGE_TWO), &rc);//获取图片控件的位置和尺寸，并保存到rc中// MapWindowPoints(HWND_DESKTOP, hwndDlg, (LPPOINT)&rc, 2);//将rc的坐标转换为窗口坐标// int w = rc.right - rc.left, h = rc.bottom - rc.top;//获取图片的宽和高// g_hBitmap = LoadImageFileToBitmap(hwndDlg, g_szPhotoPath, w, h); if (g_hBitmap) SendDlgItemMessage(hwndDlg, IDC_MY_IMAGE_TWO, STM_SETIMAGE, IMAGE_BITMAP, (LPARAM)g_hBitmap);//向对话框指定控件发送消息，这里是更新图片控件// else MessageBox(hwndDlg, L"图片加载失败", L"QQ", MB_OK | MB_ICONERROR); } return (INT_PTR)TRUE; case IDOK: if (wcslen(g_szPhotoPath) == 0) { MessageBox(hwndDlg, L"请先上传头像", L"QQ", MB_OK | MB_ICONWARNING); break; } EndDialog(hwndDlg, IDOK); return (INT_PTR)TRUE; case IDCANCEL: EndDialog(hwndDlg, IDCANCEL); return (INT_PTR)TRUE; } case WM_DESTROY: if (g_hBitmap) { DeleteObject(g_hBitmap); g_hBitmap = NULL; } return (INT_PTR)TRUE; } return (INT_PTR)FALSE; } //IP格式验证// bool IsValidIP(const WCHAR* ip) { char ipAnsi[16]; // 将宽字符转换为ANSI WideCharToMultiByte(CP_ACP, 0, ip, -1, ipAnsi, 16, NULL, NULL); struct in_addr addr; // 尝试转换IP地址 return (inet_pton(AF_INET, ipAnsi, &addr) == 1); } INT_PTR CALLBACK Dialog_nine(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//IP输入框// { HANDLE hThread = NULL; switch (uMsg) { case WM_INITDIALOG: SetDlgItemText(hwndDlg, IDC_EDIT20, L"服务器IP"); return (INT_PTR)TRUE; case WM_COMMAND: switch (LOWORD(wParam)) { case IDOK: WCHAR IP[16]; GetDlgItemText(hwndDlg, IDC_EDIT21, IP, 16);//获取IP地址，存储在IP数组里面// if (!IsValidIP(IP))//IP格式验证// { MessageBox(hwndDlg, L"IP格式错误", L"QQ", MB_ICONERROR); SetDlgItemText(hwndDlg, IDC_EDIT21, L"");//清除错误IP// SetFocus(GetDlgItem(hwndDlg, IDC_EDIT21)); return (INT_PTR)TRUE; } MessageBox(hwndDlg, L"IP格式正确", L"QQ", MB_ICONINFORMATION); // 禁用确定按钮，防止重复点击 EnableWindow(GetDlgItem(hwndDlg, IDOK), FALSE); //创建工作线程，执行网络连接// DWORD threadId; hThread = CreateThread( NULL, 0, [](LPVOID param)->DWORD { HWND hwnd = (HWND)param; g_clientSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);//创建套接字// if (g_clientSocket == INVALID_SOCKET) { MessageBox(hwnd, L"创建套接字失败", L"QQ", MB_ICONERROR); return 1; } MessageBox(hwnd, L"创建套接字成功", L"QQ", MB_ICONINFORMATION); //设置服务器地址// sockaddr_in serverAddr; serverAddr.sin_family = AF_INET; serverAddr.sin_port = htons(8080);//服务器端口// WCHAR IP[16]; GetDlgItemText(hwnd, IDC_EDIT21, IP, 16);//从对话框获取IP地址// char ipAnsi[16]; WideCharToMultiByte(CP_ACP, 0, IP, -1, ipAnsi, 16, NULL, NULL);//IP地址转化为char类型// inet_pton(AF_INET, ipAnsi, &serverAddr.sin_addr); if (connect(g_clientSocket, (sockaddr*)&serverAddr, sizeof(serverAddr)) == SOCKET_ERROR) //连接服务器// { int error = WSAGetLastError(); switch (error) { case WSAECONNREFUSED: MessageBox(hwnd, L"连接被拒绝", L"QQ", MB_ICONERROR); break; case WSAENETUNREACH: MessageBox(hwnd, L"网络不可达", L"QQ", MB_ICONERROR); break; case WSAEHOSTDOWN: MessageBox(hwnd, L"主机不可达", L"QQ", MB_ICONERROR); break; case WSAETIMEDOUT: MessageBox(hwnd, L"连接超时", L"QQ", MB_ICONERROR); break; default: MessageBox(hwnd, L"连接服务器失败", L"QQ", MB_ICONERROR); break; } closesocket(g_clientSocket); g_clientSocket = INVALID_SOCKET; PostMessage(hwnd, WM_CONNECT_FAILED, 0, 0); return 1; } g_isConnected = true; PostMessage(hwnd, WM_CONNECT_SUCCESS, 0, 0); return 0; }, hwndDlg, 0, &threadId ); if (hThread) { CloseHandle(hThread);//释放线程句柄// } return (INT_PTR)TRUE; case IDCANCEL: EndDialog(hwndDlg, IDCANCEL); return (INT_PTR)TRUE; }break; case WM_CONNECT_SUCCESS: { MessageBox(hwndDlg, L"服务器连接成功", L"QQ", MB_ICONINFORMATION); //发送字符// const char* msg = "你好，服务器。"; int len = sizeof(msg); uint32_t netlen = len-1; send(g_clientSocket, (char*)&netlen, sizeof(netlen), 0); send(g_clientSocket, msg,len-1, 0); EndDialog(hwndDlg, IDOK); return (INT_PTR)TRUE; } case WM_CONNECT_FAILED: EnableWindow(GetDlgItem(hwndDlg, IDOK), TRUE); // 重新启用确定按钮 return (INT_PTR)TRUE; } return (INT_PTR)FALSE; } INT_PTR CALLBACK Dialog_ten(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//登录界面首页框// { switch (uMsg) { case WM_INITDIALOG: return (INT_PTR)TRUE; case WM_COMMAND: switch (LOWORD(wParam)) { case IDC_EDIT22: EndDialog(hwndDlg, IDC_EDIT22); return (INT_PTR)TRUE; case IDC_EDIT23: EndDialog(hwndDlg, IDC_EDIT23); return (INT_PTR)TRUE; case IDC_EDIT24: EndDialog(hwndDlg, IDC_EDIT24); return (INT_PTR)TRUE; case IDC_EDIT25: EndDialog(hwndDlg, IDC_EDIT25); return (INT_PTR)TRUE; case IDC_EDIT26: EndDialog(hwndDlg, IDC_EDIT26); return (INT_PTR)TRUE; case IDCANCEL: EndDialog(hwndDlg, IDCANCEL); return (INT_PTR)TRUE; case IDC_EDIT43: EndDialog(hwndDlg, IDC_EDIT43); return (INT_PTR)TRUE; } } return (INT_PTR)FALSE; } INT_PTR CALLBACK Dialog_eleven(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//服务器对话框// { switch (uMsg) { case WM_INITDIALOG: return (INT_PTR)TRUE; case WM_COMMAND: switch (LOWORD(wParam)) { case IDOK: EndDialog(hwndDlg, IDOK); return (INT_PTR)TRUE; case IDCANCEL: EndDialog(hwndDlg, IDCANCEL); return (INT_PTR)TRUE; } } return (INT_PTR)FALSE; } INT_PTR CALLBACK Dialog_twelve(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//聊天室对话框// { switch (uMsg) { case WM_INITDIALOG: return (INT_PTR)TRUE; case WM_COMMAND: switch (LOWORD(wParam)) { case IDOK: EndDialog(hwndDlg, IDOK); return (INT_PTR)TRUE; case IDCANCEL: EndDialog(hwndDlg, IDCANCEL); return (INT_PTR)TRUE; } } return (INT_PTR)FALSE; } INT_PTR CALLBACK Dialog_thirdteen(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//好友列表框// { switch (uMsg) { case WM_INITDIALOG: return (INT_PTR)TRUE; case WM_COMMAND: switch (LOWORD(wParam)) { case IDOK: EndDialog(hwndDlg, IDOK); return (INT_PTR)TRUE; case IDCANCEL: EndDialog(hwndDlg, IDCANCEL); return (INT_PTR)TRUE; } } return (INT_PTR)FALSE; } INT_PTR CALLBACK Dialog_fourteen(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//登录后个人信息框// { switch (uMsg) { case WM_INITDIALOG: SetDlgItemText(hwndDlg, IDC_EDIT31, L"账号"); SetDlgItemText(hwndDlg, IDC_EDIT32, L"密码"); SetDlgItemText(hwndDlg, IDC_EDIT33, L"昵称"); SetDlgItemText(hwndDlg, IDC_EDIT34, L"性别"); SetDlgItemText(hwndDlg, IDC_EDIT35, L"年龄"); SetDlgItemText(hwndDlg, IDC_EDIT36, L"个性签名"); return (INT_PTR)TRUE; case WM_COMMAND: switch (LOWORD(wParam)) { case IDOK: EndDialog(hwndDlg, IDOK); return (INT_PTR)TRUE; case IDCANCEL: EndDialog(hwndDlg, IDCANCEL); return (INT_PTR)TRUE; } } return (INT_PTR)FALSE; } //宽字符串文本发送函数// void send_wchar(WCHAR wstr[],int wchar_size,SOCKET socket) { //计算转换所需要的空间长度// int len = WideCharToMultiByte(CP_UTF8,0,wstr,wchar_size,NULL,0,NULL,NULL);//发送注册数据到客户端，使用UTF-8进行网络传输，它是国际通用的编码方式// char* target=new char[len];//存储格式转换后的文本// //实际转换// WideCharToMultiByte(CP_UTF8, 0, wstr, wchar_size, target, len, NULL, NULL); uint32_t len_net =len-1;//主机序转网络序// send(socket, (char*)&len_net, sizeof(len_net), 0);//先发长度// send(socket, target, len-1, 0);//再发内容// delete[]target; } int WINAPI WinMain(HINSTANCE hinstance, HINSTANCE, LPSTR, int nCmdShow)//Winmain主函数// { int result_one=DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_ONE), NULL, Dialog_one); if (result_one == IDEND)//退出// //一级判断// { DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_END), NULL, Dialog_end);//退出框// } else if(result_one == IDOK)//一级判断// { WSADATA wsaData; int result = WSAStartup(MAKEWORD(2, 2), &wsaData); if (result) { MessageBox(NULL, L"Winsock初始化失败", L"QQ", MB_ICONERROR); WSACleanup(); } if (LOBYTE(wsaData.wVersion) != 2 || HIBYTE(wsaData.wVersion) != 2) { MessageBox(NULL, L"不支持Winsock2.2", L"QQ", MB_ICONERROR); WSACleanup(); } MessageBox(NULL, L"Winsock初始化成功", L"QQ", MB_ICONINFORMATION); INT_PTR result_nine = DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_NINE), NULL, Dialog_nine);//IP输入框// if (result_nine == IDCANCEL)//退出// //二级判断// { DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_END), NULL, Dialog_end);//退出框// } else if (result_nine == IDOK)//二级判断// { door_one: INT_PTR result_two = DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_TWO), NULL, Dialog_two);//登录和注册选择框// if (result_two == IDLOGIN)//登录// //三级判断// { INT_PTR result_three = DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_THREE), NULL, Dialog_three);//登录对话框（需账号和密码验证）// if (result_three == IDOK) //四级判断// { door_two: int result_ten = DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_TEN), NULL, Dialog_ten);//登陆界面首页框// int result_fifteen = 0; int result_eleven = 0; int result_twelve = 0; int result_thirdteen = 0; int result_fourteen= 0; switch (result_ten) { case IDC_EDIT22: result_twelve=DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_TWELVE), NULL, Dialog_twelve);//聊天室对话框// switch (result_twelve) { case IDOK: MessageBox(NULL, L"还未开发", L"QQ", MB_ICONINFORMATION); break; case IDCANCEL: goto door_two;//登陆界面首页框// break; }break; case IDC_EDIT23: result_thirdteen=DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_THIRDTEEN), NULL, Dialog_thirdteen);//好友框// switch (result_thirdteen) { case IDOK: MessageBox(NULL, L"还未开发", L"QQ", MB_ICONINFORMATION); break; case IDCANCEL: goto door_two;//登陆界面首页框// break; }break; case IDC_EDIT24: result_fourteen=DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_FOURTEEN), NULL, Dialog_fourteen);//个人信息框// switch (result_fourteen) { case IDOK: MessageBox(NULL, L"还未开发", L"QQ", MB_ICONINFORMATION); break; case IDCANCEL: goto door_two;//登陆界面首页框// break; }break; case IDC_EDIT25: result_fifteen=DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_EIGHT), NULL, Dialog_eight);//更换头像框// switch (result_fifteen) { case IDOK: MessageBox(NULL, L"还未开发", L"QQ", MB_ICONINFORMATION); break; case IDCANCEL: goto door_two;//登陆界面首页框// break; }break; case IDC_EDIT26: result_eleven=DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_ELEVEN), NULL, Dialog_eleven);//服务器框// switch (result_eleven) { case IDOK: MessageBox(NULL, L"还未开发", L"QQ", MB_ICONINFORMATION); break; case IDCANCEL: goto door_two;//登陆界面首页框// break; }break; case IDCANCEL: DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_END), NULL, Dialog_end);//退出框// break; case IDC_EDIT43: goto door_one;//登陆界面首页框// break; } } else if (result_three == IDCANCEL)//四级判断// { goto door_one;//登录和注册选择框// } } else if (result_two == IDREGISTER)//注册// //三级判断// { door_three: INT_PTR result_four = DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_FOUR), NULL, Dialog_four);//注册对话框// if (result_four == IDGOON)//四级判断// { door_four: INT_PTR result_five = DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_FIVE), NULL, Dialog_five);//密码设置框// { if (result_five == IDFINISH)//五级判断// { door_five: int result_seven=DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_SEVEN), NULL, Dialog_seven);//个人信息框// if (result_seven==IDCANCEL)//六级判断// { goto door_four; } else if (result_seven == IDOK)//六级判断// { door_six: int result_eight=DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_EIGHT), NULL, Dialog_eight);//头像上传框// if (result_eight == IDCANCEL)//七级判断// { goto door_five; } else if (result_eight == IDOK)//七级判断// { INT_PTR result_six = DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_SIX), NULL, Dialog_six);//注册成功框// if (result_six == IDOK)//八级判断// { //获取数组大小// int g_szAccount_len = sizeof(g_szAccount); int g_szPassword_len = sizeof(g_szPassword); int g_szNickname_len = sizeof(g_szNickname); int g_szGender_len = sizeof(g_szGender); int g_szAge_len = sizeof(g_szAge); int g_szSignature_len = sizeof(g_szSignature); //开始发送// send_wchar(g_szAccount,g_szAccount_len,g_clientSocket);//账号// send_wchar(g_szPassword,g_szPassword_len,g_clientSocket);//密码// send_wchar(g_szNickname,g_szNickname_len,g_clientSocket);//昵称// send_wchar(g_szGender,g_szGender_len, g_clientSocket);//性别// send_wchar(g_szAge,g_szAge_len, g_clientSocket);//年龄// send_wchar(g_szSignature,g_szSignature_len,g_clientSocket);//个性签名// //send(g_clientSocket, (char*)g_pImageData, g_dwImageSize, 0);//头像// /* send(g_clientSocket, (const char*)g_szAccount, g_szAccount_len, 0);//账号// send(g_clientSocket, (const char*)g_szPassword, g_szPassword_len, 0);//密码// send(g_clientSocket, (const char*)g_szNickname, g_szNickname_len, 0);//昵称// send(g_clientSocket, (const char*)g_szGender, g_szGender_len, 0);//性别// send(g_clientSocket, (const char*)g_szAge, g_szAge_len, 0);//年龄// send(g_clientSocket, (const char*)g_szSignature, g_szSignature_len, 0);//个性签名// */ MessageBox(NULL, L"已将您的注册数据保存到服务器", L"QQ", MB_ICONINFORMATION); goto door_one;//返回登录和注册选择框// } else if (IDCANCEL)//八级判断// { goto door_six; } } } } else if (result_five == IDCANCEL)//五级判断// { goto door_three;//注册对话框// } } } else if (result_four == IDCANCEL)//四级判断// { goto door_one;//返回登录和注册选择框// } } else if (result_two == IDCANCEL)//退出// //三级判断// { DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_END), NULL, Dialog_end);//退出框// } } } return 0; }为什么客户端发送了你好客户端后，就断开连接？而且服务器还显示乱码。 #include<winsock2.h> #include<ws2tcpip.h> #include<windows.h> #include<thread> #include<queue> #include"resource.h" #pragma comment(lib,"ws2_32.lib") HWND g_hInfoDialog = NULL;//对话框句柄// std::queue<std::wstring>g_msgQueue;//消息队列// CRITICAL_SECTION g_csMsgQueue;//线程同步锁// int z = 0; INT_PTR CALLBACK Dialog_one(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//开始对话框// { static UINT_PTR TimeID = 0;//启用定时器// static HBRUSH hBackgroundBrush = NULL;//背景画刷// static HBITMAP hBmp = NULL;//位图句柄// switch (uMsg) { case WM_INITDIALOG: TimeID = SetTimer(hwndDlg, 1, 4000, NULL);//显示第一个对话框的内容，延迟4秒；1为定时器的ID，当定时结束后，传递给wParam的参数为其ID，即1.// hBackgroundBrush = CreateSolidBrush((RGB(200, 230, 255)));//设置背景为淡蓝色// hBmp = (HBITMAP)LoadImage(NULL, L"image_one.bmp", IMAGE_BITMAP, 200, 170, LR_LOADFROMFILE);//加载图片位置// if (hBmp) { SendDlgItemMessage(hwndDlg, IDC_MY_IMAGE_ONE, STM_SETIMAGE, IMAGE_BITMAP, (LPARAM)hBmp); } else { MessageBox(hwndDlg, L"image lost", L"QQ", MB_ICONERROR); } return (INT_PTR)TRUE;//设置焦点// case WM_DRAWITEM: { DRAWITEMSTRUCT* pdis = (DRAWITEMSTRUCT*)lParam; if (pdis->CtlID == IDC_CUSTOM_TEXT) { SetTextColor(pdis->hDC, RGB(255, 0, 0)); DrawText(pdis->hDC, L"Welcome to QQ's server", -1, &pdis->rcItem,//对话框标题// DT_CENTER | DT_VCENTER); } return (INT_PTR)TRUE; } case WM_CTLCOLORDLG: return (INT_PTR)hBackgroundBrush; case WM_COMMAND: if (LOWORD(wParam) == IDSTART) { EndDialog(hwndDlg, IDOK);//关闭对话框// } return (INT_PTR)TRUE; case WM_TIMER: if (wParam == 1) { EndDialog(hwndDlg, IDOK);//关闭对话框// } return (INT_PTR)TRUE; case WM_DESTROY: KillTimer(hwndDlg, TimeID);//销毁定时器// DeleteObject(hBackgroundBrush);//释放画刷// DeleteObject(hBmp);//释放位图资源// break; case WM_CLOSE: EndDialog(hwndDlg, IDEND);//关闭对话框// break; } return (INT_PTR)FALSE; } INT_PTR CALLBACK Dialog_end(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//结束对话框// { static UINT_PTR TimeID = 0;//启用定时器// static HBRUSH hBackgroundBrush = NULL;//背景画刷// static HBITMAP hBmp = NULL;//位图句柄// switch (uMsg) { case WM_INITDIALOG: TimeID = SetTimer(hwndDlg, 1, 4000, NULL);//显示第一个对话框的内容，延迟3秒// hBackgroundBrush = CreateSolidBrush((RGB(200, 230, 255)));//设置背景为淡蓝色// return (INT_PTR)TRUE;//设置焦点// case WM_DRAWITEM: { DRAWITEMSTRUCT* pdis = (DRAWITEMSTRUCT*)lParam; if (pdis->CtlID == IDC_CUSTOM_TEXT_TWO) { SetTextColor(pdis->hDC, RGB(255, 0, 0)); DrawText(pdis->hDC, L"Goodbye", -1, &pdis->rcItem,//对话框标题// DT_CENTER | DT_VCENTER); } return (INT_PTR)TRUE; } case WM_CTLCOLORDLG: return (INT_PTR)hBackgroundBrush; case WM_TIMER: if (wParam == 1) { KillTimer(hwndDlg, TimeID);//销毁定时器// DeleteObject(hBackgroundBrush);//释放画刷// EndDialog(hwndDlg, IDOK);//关闭对话框// } return (INT_PTR)TRUE; case WM_CLOSE: EndDialog(hwndDlg, IDEND);//关闭对话框// break; } return (INT_PTR)FALSE; } //消息更新函数// void UpdateDialogContent(HWND hwndDlg) { EnterCriticalSection(&g_csMsgQueue);//加锁// if (!g_msgQueue.empty())//队列非空// { std::wstring msg = g_msgQueue.front();//取队首元素// g_msgQueue.pop();//将队首元素弹出// int len = GetWindowTextLength(GetDlgItem(hwndDlg, IDC_INFORMATION));//获取当前控件文本长度// wchar_t* currentText = new wchar_t[len + 1]; GetWindowText(GetDlgItem(hwndDlg, IDC_INFORMATION), currentText, len + 1);//获取当前控件文本// std::wstring combined=L""; if (len > 0) { if (z)//第一次接收消息时，去除对话框的“等待消息...”// { combined = currentText; combined += L"\r\n"; } z = 1; } combined += msg; SetDlgItemText(hwndDlg, IDC_INFORMATION, combined.c_str());//更新消息// delete[] currentText; } LeaveCriticalSection(&g_csMsgQueue);//解锁// } INT_PTR CALLBACK Dialog_information(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)//消息对话框// { switch (uMsg) { case WM_INITDIALOG: SetDlgItemText(hwndDlg, IDC_INFORMATION, L"等待消息...");//更新消息// return (INT_PTR)TRUE; case WM_APP_UPDATE_MSG: UpdateDialogContent(hwndDlg); return (INT_PTR)TRUE; case WM_COMMAND: if (LOWORD(wParam) == IDCANCEL) { DestroyWindow(hwndDlg); g_hInfoDialog = NULL; DialogBox(GetModuleHandle(NULL), MAKEINTRESOURCE(IDD_MYDIALOG_END), NULL, Dialog_end);//结束框// return (INT_PTR)TRUE; } } return (INT_PTR)FALSE; } void HandleClient(SOCKET client_server) { uint32_t strlen; int length = recv(client_server, (char*)&strlen, sizeof(strlen), 0); if (length != sizeof(strlen)) { MessageBox(NULL, L"主机序转网路序错误", L"QQ", MB_ICONERROR); closesocket(client_server); exit(1); } strlen = strlen;//网络序转主机序// char* received = new char[strlen+1]; sockaddr_in clientAddr; int addrlen = sizeof(clientAddr); //获取客户端地址// getpeername(client_server, (sockaddr*)&clientAddr, &addrlen); char ipStr[INET_ADDRSTRLEN]; inet_ntop(AF_INET, &(clientAddr.sin_addr), ipStr, INET_ADDRSTRLEN); //转换为Unicode字符串（WCHAR） wchar_t wIP[20]; MultiByteToWideChar(CP_UTF8,0,ipStr,-1,wIP,sizeof(wIP)/sizeof(wchar_t)); int x = 0; while (true) { int rec = recv(client_server, received,strlen, 0); if (rec <= 0) { break; } received[strlen] = '\0'; int len = MultiByteToWideChar(CP_UTF8,0,received,-1,NULL,0); WCHAR*received_pro = new WCHAR[len]; MultiByteToWideChar(CP_UTF8, 0, received, -1, received_pro,len); //获取当前时间// time_t now = time(0); tm tm; localtime_s(&tm, &now); wchar_t timeBuffer[64]; wcsftime(timeBuffer,sizeof(timeBuffer)/sizeof(wchar_t),L"%Y-%m-%d %H:%M:%S",&tm); std::wstring fullMessage = L"["; fullMessage += timeBuffer; fullMessage += L"]["; fullMessage +=wIP; fullMessage += L"]"; fullMessage += received_pro; EnterCriticalSection(&g_csMsgQueue);//加锁// g_msgQueue.push(std::wstring(fullMessage));//创建副本// LeaveCriticalSection(&g_csMsgQueue);//解锁// delete[]received_pro; delete[]received; if (x == 0) { MessageBox(NULL, L"服务器已成功接收来自客户端的信息", L"QQ", MB_ICONINFORMATION);//只提示一次// x = 1; } //通知现有对话框更新内容// PostMessage(g_hInfoDialog, WM_APP_UPDATE_MSG, 0, 0); } MessageBox(NULL, L"服务器已无法接收来自客户端的信息", L"QQ", MB_ICONERROR); closesocket(client_server); } DWORD WINAPI StartServer(LPVOID lpParam)//服务器线程函数// { SOCKET server_socket = INVALID_SOCKET; server_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);//创建套接字// if (server_socket == INVALID_SOCKET) { MessageBox(NULL, L"服务器套接字创建失败", L"QQ", MB_ICONERROR); exit(1); } else { MessageBox(NULL, L"服务器套接字创建成功", L"QQ", MB_ICONINFORMATION); } //设置服务器地址// sockaddr_in serverAddr; serverAddr.sin_family = AF_INET;//设置为IPv4// serverAddr.sin_port = htons(8080);//端口号// serverAddr.sin_addr.s_addr = INADDR_ANY;//监听所有网卡，即本机的所有IP地址// bind(server_socket, (sockaddr*)&serverAddr, sizeof(serverAddr));//将套接字与指定的IP地址和端口号关联// listen(server_socket, 50);//开始监听// int y = 0; while (true&&y<=3) { SOCKET client_server = accept(server_socket, NULL, NULL);//创建新的套接字// if (client_server == INVALID_SOCKET) { MessageBox(NULL, L"无法创建新的套接字与客户端进行通信", L"QQ", MB_ICONINFORMATION); y++; continue; } MessageBox(NULL, L"成功创建新的套接字与客户端进行通信", L"QQ", MB_ICONINFORMATION); std::thread(HandleClient, client_server).detach();//创建线程// } exit(1); } int WINAPI WinMain(HINSTANCE hinstance, HINSTANCE, LPSTR, int nCmdShow) { InitializeCriticalSection(&g_csMsgQueue);//初始化// INT_PTR result_one = DialogBox(hinstance, MAKEINTRESOURCE(IDD_MYDIALOG_ONE), NULL, Dialog_one);//开始框// if (result_one == IDOK)//一级判断// { WSADATA wsaData; int result = WSAStartup(MAKEWORD(2, 2), &wsaData); if (result) { MessageBox(NULL, L"Winsock初始化失败", L"QQ", MB_ICONERROR); WSACleanup(); exit(1); } if (LOBYTE(wsaData.wVersion) != 2 || HIBYTE(wsaData.wVersion) != 2) { MessageBox(NULL, L"不支持Winsock2.2", L"QQ", MB_ICONERROR); WSACleanup(); exit(1); } MessageBox(NULL, L"Winsock初始化成功", L"QQ", MB_ICONINFORMATION); if (g_hInfoDialog == NULL)//创建消息对话框// { g_hInfoDialog = CreateDialog( GetModuleHandle(NULL), MAKEINTRESOURCE(IDD_MYDIALOG_INFORMATION), NULL, Dialog_information ); ShowWindow(g_hInfoDialog, SW_SHOW); } CreateThread(NULL, 0, StartServer, NULL, 0, NULL); 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MFC子窗口中退出程序 在子窗口中退出程序应使用PostQuitMessage(0);函数实现。 函数GetMessage里是使用一个循环不断地检测消息，周止复始的，是不可能出现死亡的，但它会检测到消息WM_QUIT就退出来。那现在问题是谁发送WM_QUIT消息出来呢？这就是PostQuitMessage函数所做的工作。当你点击窗口右上角的关闭时，Windows就会把窗口从系统
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