每个对话框单独有一个自己线程吗？好像不是，父对话框和子对话框会在同一个线程中运行。
父对话框运行一个长任务时，会导致子对话框也不能响应WM_消息。
为了用子对话框来显示父对话框长任务的进度，所以我新开了一个线程。

LZ要是真想在线程中创建窗口可以这样创建.
感觉LZ是不是没明白模态和非模态对话框,非模态对话框与模态对话框不同，非模态对话框不垄断用户的输入，用户打开非模态对话框后，仍然可以与其它界面进行交互。
C/C++ code
LRESULT CALLBACK WinSunProc(
                            HWND hwnd,// handle to window                            UINT uMsg,// message identifier                            WPARAM wParam,// first message parameter                            LPARAM lParam// second message parameter);


这显然就是孙鑫的例子啊，移植

DWORD C*Dlgr::Thread1(LPVOID lparam)
{
    WNDCLASS wndclass;
    wndclass.cbClsExtra=0;
    wndclass.cbWndExtra=0;
    wndclass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
    wndclass.hCursor=LoadCursor(NULL,IDC_CROSS);
    wndclass.hIcon=LoadIcon(NULL,IDI_WINLOGO);
    wndclass.hInstance=AfxGetInstanceHandle();
    wndclass.lpfnWndProc=WinSunProc;
    wndclass.lpszClassName="Weixin";
    wndclass.lpszMenuName=NULL;
    wndclass.style=CS_HREDRAW|CS_VREDRAW;
    RegisterClass(&wndclass);
    
    HWND hwnd;
    hwnd=CreateWindow("Weixin","北京维新科学技术培训中心",WS_OVERLAPPEDWINDOW,225,160,600,400,NULL,NULL,AfxGetInstanceHandle(),NULL);
    
    ::ShowWindow(hwnd,SW_SHOWNORMAL);
    ::UpdateWindow(hwnd);
    
    MSG msg;while(GetMessage(&msg,NULL,0,0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    AfxMessageBox("tc");return0;
}

LRESULT CALLBACK WinSunProc(
                            HWND hwnd,// handle to window                            UINT uMsg,// message identifier                            WPARAM wParam,// first message parameter                            LPARAM lParam// second message parameter                            )
{switch(uMsg)
    {case WM_CHAR:char szChar[20];
        sprintf(szChar,"char is %d",wParam);
        MessageBox(hwnd,szChar,"weixin",0);break;case WM_PAINT:
        HDC hDC;
        PAINTSTRUCT ps;
        hDC=BeginPaint(hwnd,&ps);
        TextOut(hDC,255,50,"维新培训",strlen("维新培训"));
        EndPaint(hwnd,&ps);break;case WM_LBUTTONDOWN:
        MessageBox(hwnd,"Left Button Clicked","weixin",0);
        HDC hdc1;
        hdc1=GetDC(hwnd);
        TextOut(hdc1,225,100,"计算机编程语言培训",strlen("计算机编程语言培训"));
        ReleaseDC(hwnd,hdc1);break;case WM_RBUTTONDOWN:
        MessageBox(hwnd,"Right Button Clicked","weixin",0);
        HDC hdc2;
        hdc2=GetDC(hwnd);
        TextOut(hdc2,225,150,"计算机编程语言培训",strlen("计算机编程语言培训"));
        ReleaseDC(hwnd,hdc2);break;case WM_CLOSE:if(IDYES==MessageBox(hwnd,"是否真的结束?","weixin",MB_YESNO))
        {
            DestroyWindow(hwnd);
        }break;case WM_DESTROY:
        PostQuitMessage(0);break;default:return DefWindowProc(hwnd,uMsg,wParam,lParam);
    }return0;
}