基于Win32的VTK多窗口程序创建

本示例基于Win32创建多窗口的VTK渲染程序

VTK的类封装在myVTKApp.h文件中，如下：

#ifndef MYVTKAPP_H_INCLUDE#define MYVTKAPP_H_INCLUDE#include"vtkConeSource.h"#include"vtkPolyDataMapper.h"#include"vtkRenderWindow.h"#include"vtkRenderWindowInteractor.h"#include"vtkRenderer.h"//定义一个简单的myVTKApp类class myVTKApp{public:  myVTKApp(HWND parent);  ~myVTKApp(); private:   vtkRenderWindow *renWin;   vtkRenderer *renderer;   vtkRenderWindowInteractor *iren;   vtkConeSource *cone;   vtkPolyDataMapper *coneMapper;   vtkActor *coneActor;};//构造函数myVTKApp::myVTKApp(HWND hwnd) {   // 创建流水线   this->renderer = vtkRenderer::New();   this->renWin = vtkRenderWindow::New();   this->renWin->AddRenderer(this->renderer);    // 启动渲染窗口的父窗口   this->renWin->SetParentId(hwnd);   this->iren = vtkRenderWindowInteractor::New();   this->iren->SetRenderWindow(this->renWin);    this->cone = vtkConeSource::New();   this->cone->SetHeight( 3.0 );   this->cone->SetRadius( 1.0 );   this->cone->SetResolution( 10 );   this->coneMapper = vtkPolyDataMapper::New();   this->coneMapper->SetInputConnection(this->cone->GetOutputPort());   this->coneActor = vtkActor::New();   this->coneActor->SetMapper(this->coneMapper);    this->renderer->AddActor(this->coneActor);   this->renderer->SetBackground(0.2,0.4,0.3);   this->renWin->SetSize(1024,500);    // 启动交互   this->renWin->Render(); } //析构函数 myVTKApp::~myVTKApp() {     renWin->Delete();     renderer->Delete();     iren->Delete();     cone->Delete();     coneMapper->Delete();     coneActor->Delete(); }#endif

入口函数：

/*********************************************************************************//**主程序，包含入口函数、2个窗口处理函数，消息回调函数**************//**创建时间：2015-5-16                         **//**建立者：张伟                              **//**功能描述：实现图像在不同窗口中显示              **//*******************************************************************************/#include "stdafx.h"#include "myVTKApp.h"#define MAX_LOADSTRING 100// Global Variables:HINSTANCE hInst;// current instanceTCHAR szTitle[MAX_LOADSTRING]={_TEXT("主窗口")};// The title bar textTCHAR szWindowClass[MAX_LOADSTRING];// the main window class nameTCHAR szTitle2[MAX_LOADSTRING] = {_TEXT("第二窗口")};TCHAR szWindowClass2[MAX_LOADSTRING] = {_TEXT("Submarine")};    // 第二个窗口类的类名HWND hWnd, hWnd2; // Forward declarations of functions included in this code module:ATOMMyRegisterClass(HINSTANCE hInstance);BOOLInitInstance(HINSTANCE, int);LRESULT CALLBACKWndProc(HWND, UINT, WPARAM, LPARAM);LRESULT CALLBACK    WndProc2(HWND, UINT, WPARAM, LPARAM);INT_PTR CALLBACKAbout(HWND, UINT, WPARAM, LPARAM);int APIENTRY _tWinMain(HINSTANCE hInstance,                     HINSTANCE hPrevInstance,                     LPTSTR    lpCmdLine,                     int       nCmdShow){UNREFERENCED_PARAMETER(hPrevInstance);UNREFERENCED_PARAMETER(lpCmdLine); // TODO: Place code here.MSG msg;HACCEL hAccelTable;// Initialize global stringsLoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);LoadString(hInstance, IDC_WIN32LEVELRAIL15, szWindowClass, MAX_LOADSTRING);MyRegisterClass(hInstance);// Perform application initialization:if (!InitInstance (hInstance, nCmdShow)){return FALSE;}hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_WIN32LEVELRAIL15));// Main message loop:while (GetMessage(&msg, NULL, 0, 0)){if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)){TranslateMessage(&msg);DispatchMessage(&msg);}}return (int) msg.wParam;}////  FUNCTION: MyRegisterClass()////  PURPOSE: Registers the window class.////  COMMENTS:////    This function and its usage are only necessary if you want this code//    to be compatible with Win32 systems prior to the 'RegisterClassEx'//    function that was added to Windows 95. It is important to call this function//    so that the application will get 'well formed' small icons associated//    with it.//ATOM MyRegisterClass(HINSTANCE hInstance){WNDCLASSEX wcex,wcex2;//第一个窗口类wcex.cbSize = sizeof(WNDCLASSEX);wcex.style= CS_HREDRAW | CS_VREDRAW;wcex.lpfnWndProc= WndProc;wcex.cbClsExtra= 0;wcex.cbWndExtra= 0;wcex.hInstance= hInstance;wcex.hIcon= LoadIcon(hInstance, MAKEINTRESOURCE(IDI_WIN32LEVELRAIL15));wcex.hCursor= LoadCursor(NULL, IDC_ARROW);wcex.hbrBackground= (HBRUSH)(COLOR_WINDOW+1);wcex.lpszMenuName= MAKEINTRESOURCE(IDC_WIN32LEVELRAIL15);wcex.lpszClassName= szWindowClass;wcex.hIconSm= LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));// 第二个窗口类的定义    wcex2.cbSize = sizeof(WNDCLASSEX);     wcex2.style            = CS_HREDRAW | CS_VREDRAW;    wcex2.lpfnWndProc    = (WNDPROC)WndProc2;    wcex2.cbClsExtra    = 0;    wcex2.cbWndExtra    = 0;    wcex2.hInstance        = hInstance;    wcex2.hIcon           = LoadIcon(hInstance, (LPCTSTR)IDI_WIN32LEVELRAIL15);    wcex2.hCursor        = LoadCursor(NULL, IDC_ARROW);    wcex2.hbrBackground    = (HBRUSH)(COLOR_WINDOW+1);    wcex2.lpszMenuName    = MAKEINTRESOURCE(IDC_WIN32LEVELRAIL15);    wcex2.lpszClassName    = szWindowClass2;    wcex2.hIconSm        = LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);return (RegisterClassEx(&wcex)&&RegisterClassEx(&wcex2));}////   FUNCTION: InitInstance(HINSTANCE, int)////   PURPOSE: Saves instance handle and creates main window////   COMMENTS:////        In this function, we save the instance handle in a global variable and//        create and display the main program window.//BOOL InitInstance(HINSTANCE hInstance, int nCmdShow){   HWND hWnd;   hInst = hInstance; // Store instance handle in our global variable   //创建第一个窗口   hWnd = CreateWindow(szWindowClass, /*szTitle*/_TEXT("主窗口"), WS_OVERLAPPEDWINDOW,      CW_USEDEFAULT,CW_USEDEFAULT,1024, 600, NULL, NULL, hInstance, NULL);   //创建第二个窗口   hWnd2 = CreateWindow(szWindowClass2, /*szTitle2*/_TEXT("第二窗口"), WS_OVERLAPPEDWINDOW,      CW_USEDEFAULT,CW_USEDEFAULT, 1024,600, NULL, NULL, hInstance, NULL);     if (!hWnd || !hWnd2)   {      return FALSE;   }   ShowWindow(hWnd, nCmdShow);   UpdateWindow(hWnd);   ShowWindow(hWnd2, nCmdShow);   UpdateWindow(hWnd2);   return TRUE;}////  FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)////  PURPOSE:  Processes messages for the main window.////  WM_COMMAND- process the application menu//  WM_PAINT- Paint the main window//  WM_DESTROY- post a quit message and return////LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam){int wmId, wmEvent;PAINTSTRUCT ps;HDC hdc;static myVTKApp *theVTKApp;static HWND ewin;switch (message){case WM_CREATE:ewin = CreateWindow("button","Exit",                           WS_CHILD | WS_VISIBLE | SS_CENTER,                           0,500,1024,50,                           hWnd,(HMENU)2,                           (HINSTANCE)vtkGetWindowLong(hWnd,vtkGWL_HINSTANCE),                           NULL);  //创建button按钮，用以退出程序theVTKApp=new myVTKApp(hWnd);return 0;case WM_COMMAND:wmId    = LOWORD(wParam);wmEvent = HIWORD(wParam);// Parse the menu selections:switch (wmId){case 2:PostQuitMessage(0);delete theVTKApp;theVTKApp=NULL;break;case IDM_HELP_ABOUT:DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);break;case IDM_FILE_EXIT:if(MessageBox(hWnd, _TEXT("确认离开程序"), _TEXT("警告"), MB_OKCANCEL)==IDOK){DestroyWindow(hWnd);}break;default:return DefWindowProc(hWnd, message, wParam, lParam);}break;case WM_PAINT:hdc = BeginPaint(hWnd, &ps);// TODO: Add any drawing code here...EndPaint(hWnd, &ps);break;case WM_DESTROY:PostQuitMessage(0);if(theVTKApp){delete theVTKApp;theVTKApp=NULL;}break;default:return DefWindowProc(hWnd, message, wParam, lParam);}return 0;}LRESULT CALLBACK WndProc2(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam){int wmId, wmEvent;PAINTSTRUCT ps;HDC hdc;static myVTKApp *theVTKApp1;static HWND ewin2;switch (message){case WM_CREATE:ewin2 = CreateWindow("button","Exit",                           WS_CHILD | WS_VISIBLE | SS_CENTER,                           0,500,1024,50,                           hWnd,(HMENU)2,                           (HINSTANCE)vtkGetWindowLong(hWnd,vtkGWL_HINSTANCE),                           NULL);  //创建button按钮，用以退出程序theVTKApp1=new myVTKApp(hWnd);return 0;case WM_COMMAND:wmId    = LOWORD(wParam);wmEvent = HIWORD(wParam);// Parse the menu selections:switch (wmId){case 2:PostQuitMessage(0);delete theVTKApp1;theVTKApp1=NULL;break;case IDM_HELP_ABOUT:DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);break;case IDM_FILE_EXIT:if(MessageBox(hWnd, _TEXT("确认离开窗口"), _TEXT("警告"), MB_OKCANCEL)==IDOK){DestroyWindow(hWnd);}break;default:return DefWindowProc(hWnd, message, wParam, lParam);}break;case WM_PAINT:hdc = BeginPaint(hWnd, &ps);// TODO: Add any drawing code here...EndPaint(hWnd, &ps);break;case WM_DESTROY:PostQuitMessage(0);if(theVTKApp1){delete theVTKApp1;theVTKApp1=NULL;}break;default:return DefWindowProc(hWnd, message, wParam, lParam);}return 0;}// Message handler for about box.INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam){UNREFERENCED_PARAMETER(lParam);switch (message){case WM_INITDIALOG:return (INT_PTR)TRUE;case WM_COMMAND:if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL){EndDialog(hDlg, LOWORD(wParam));return (INT_PTR)TRUE;}break;}return (INT_PTR)FALSE;}

运行效果如下：