windows编程交互式绘图完整程序

/******************************************************************* 程序：univ 文件：univ.cpp 功能：综合实验 ********************************************************************/ #include <windows.h> #include <windowsx.h> #include "resource.h" extern int QuerySaveFile(HWND hWnd, TCHAR * szTitleName); BOOL InitWindow (HINSTANCE hInstance, int nCmdShow); LRESULT CALLBACK WinProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam); //子窗口函数原型 BOOL CALLBACK DlgWndProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam); #define UNTITLED TEXT ("无标题") BOOL bDrawing; static int opensign=0; DWORD fsize; static int ndraws=0; static int opdraws=0; int width=1; static int pattern=0; static TCHAR szAppName[] = TEXT ("univ"); //应用程序名称 int WINAPI WinMain (HINSTANCE hInstance, //当前实例句柄 HINSTANCE hPrevInstance, //前一个实例句柄 PSTR szCmdLine, //命令行字符 int iCmdShow) //窗口显示方式 { MSG msg; //创建主窗口 if (!InitWindow (hInstance, iCmdShow)) return FALSE; while (GetMessage (&msg, NULL, 0, 0)) { TranslateMessage (&msg); DispatchMessage (&msg); } return msg.wParam; } /****************************************************************** 函数：InitWindow () 功能：创建窗口。 *******************************************************************/ static BOOL InitWindow (HINSTANCE hInstance, int iCmdShow) { HWND hwnd; //窗口句柄 WNDCLASS wcMainWnd; //窗口类结构 ATOM a; //填充窗口类结构 wcMainWnd.style = CS_VREDRAW | CS_HREDRAW; wcMainWnd.lpfnWndProc = WinProc; wcMainWnd.cbClsExtra = 0; wcMainWnd.cbWndExtra = 0; wcMainWnd.hInstance = hInstance; wcMainWnd.hIcon = LoadIcon (hInstance, IDI_APPLICATION); wcMainWnd.hCursor = LoadCursor (NULL, IDC_ARROW); wcMainWnd.hbrBackground = (HBRUSH)GetStockObject (WHITE_BRUSH); wcMainWnd.lpszMenuName = szAppName; wcMainWnd.lpszClassName = szAppName; //注册窗口类 a = RegisterClass (&wcMainWnd); if (!a) { MessageBox (NULL, TEXT ("注册窗口类失败！"), szAppName, MB_ICONERROR); return 0; } //创建主窗口 hwnd = CreateWindow (szAppName, //窗口类名称 TEXT ("简易绘图—20068002102"), //窗口标题 WS_OVERLAPPEDWINDOW, //窗口风格 100, //窗口位置的x坐标 100, //窗口位置的y坐标 600, //窗口的宽度 400, //窗口的高度 NULL, //父窗口句柄 LoadMenu(hInstance, MAKEINTRESOURCE(IDR_MENU1)), //菜单句柄 hInstance, //应用程序实例句柄 NULL); //窗口创建数据指针 if( !hwnd ) return FALSE; //显示并更新窗口 ShowWindow( hwnd, iCmdShow ); UpdateWindow( hwnd ); return TRUE; } struct MyDraw { POINT start; POINT end; int myfunc; COLORREF mycolor; int penwidth; LOGFONT mylogfont; char mystr[64]; }; typedef struct MyDraw MYDRAW; MYDRAW mydraws[128]; MYDRAW nonedraw; /****************************************************************** 函数：WinProc () 功能：处理主窗口消息 *******************************************************************/ LRESULT CALLBACK WinProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { HDC hdc; PAINTSTRUCT ps; RECT rect; HMENU hMenu; static int iSelectionFunc = IDM_MY_LINE; static HPEN hPen0; static HPEN hPen1; static HBRUSH hBrush0, hBrush1; static HINSTANCE hInstance; static CHOOSECOLOR cc; static COLORREF crCustomColors[16]; static COLORREF crPen = RGB (0, 0, 0); static COLORREF crBrush = RGB (0, 0, 0); static COLORREF crText = RGB (0, 0, 0); int i=0; static TCHAR szFileFilter[] = TEXT ("Text Files (*.TXT)\0*.txt\0") \ TEXT ("Text Files (*.C)\0*.c\0") \ TEXT ("Text Files (*.H)\0*.h\0") \ TEXT ("Text Files (*.RC)\0*.rc\0") \ TEXT ("All Files (*.*)\0*.*\0\0"); static TCHAR szFileName[MAX_PATH], szFileTitle[MAX_PATH]; static OPENFILENAME ofn; static HANDLE hFile; static BOOL bFileChange = FALSE; TCHAR szWndCaption[MAX_PATH]; DWORD dwBytes; static CHOOSEFONT cf; static LOGFONT logfont; static HFONT hfont1; static HFONT hfont0; static POINT movedownpoint; static POINT movemovepoint; static int mytop,mybottom,myleft,myright; static int nmove; switch (message) { case WM_CREATE: hInstance = ((LPCREATESTRUCT) lParam)->hInstance ; //初始化结构cf GetObject (GetStockObject (SYSTEM_FONT), sizeof (LOGFONT), (PTSTR) &logfont); //初始化结构 logfont cf.lStructSize = sizeof (CHOOSEFONT); cf.hwndOwner = hWnd; cf.hDC = NULL; cf.lpLogFont = &logfont; cf.iPointSize = 0; cf.Flags = CF_INITTOLOGFONTSTRUCT | CF_SCREENFONTS | CF_EFFECTS; cf.rgbColors = 0; cf.lCustData = 0; cf.lpfnHook = NULL; cf.lpTemplateName = NULL; cf.hInstance = NULL; cf.lpszStyle = NULL; cf.nFontType = 0; cf.nSizeMin = 0; cf.nSizeMax = 0; //初始化结构变量 ofn ofn.lStructSize = sizeof (OPENFILENAME); ofn.hwndOwner = hWnd; ofn.hInstance = NULL; ofn.lpstrFilter = szFileFilter; ofn.lpstrCustomFilter = NULL; ofn.nMaxCustFilter = 0; ofn.nFilterIndex = 0; ofn.lpstrFile = NULL; //调用 GetOpenFileName 函数前设置 ofn.nMaxFile = MAX_PATH; ofn.lpstrFileTitle = NULL; //调用 GetOpenFileName 函数前设置 ofn.nMaxFileTitle = MAX_PATH; ofn.lpstrInitialDir = NULL; ofn.lpstrTitle = NULL; ofn.Flags = 0; //调用 GetOpenFileName 函数前设置 ofn.nFileOffset = 0; ofn.nFileExtension = 0; ofn.lpstrDefExt = TEXT ("txt"); ofn.lCustData = 0L; ofn.lpfnHook = NULL; //显示窗口标题 szFileName[0] = '\0'; szFileTitle[0] = '\0'; wsprintf (szWndCaption, TEXT ("%s - %s"), UNTITLED, szAppName); SetWindowText (hWnd, szWndCaption) ; //初始化结构 cc cc.lStructSize = sizeof (CHOOSECOLOR); cc.hwndOwner = hWnd; cc.hInstance = NULL; cc.rgbResult = RGB (0, 0, 0); cc.lpCustColors = crCustomColors; cc.Flags = CC_RGBINIT | CC_FULLOPEN; cc.lCustData = 0; cc.lpfnHook = NULL; cc.lpTemplateName = NULL; return 0; case WM_LBUTTONDOWN: if (!bDrawing) SetCapture (hWnd); if (pattern==0) // 绘图模式下响应 { if (opensign==1) ndraws=opdraws+1; mydraws[ndraws].start.x = LOWORD (lParam); mydraws[ndraws].start.y = HIWORD (lParam); mydraws[ndraws].end.x = LOWORD (lParam); mydraws[ndraws].end.y = HIWORD (lParam); switch (iSelectionFunc) { case IDM_MY_LINE: mydraws[ndraws].mycolor=crPen; mydraws[ndraws].myfunc=IDM_MY_LINE; mydraws[ndraws].penwidth=width; bDrawing = TRUE; break; case IDM_MY_RECTANGLE: mydraws[ndraws].mycolor=crBrush; mydraws[ndraws].myfunc=IDM_MY_RECTANGLE; bDrawing = TRUE; break; case IDM_MY_ELLIPSE: mydraws[ndraws].mycolor=crBrush; mydraws[ndraws].myfunc=IDM_MY_ELLIPSE; bDrawing = TRUE; break; case IDM_MY_TEXT: mydraws[ndraws].mylogfont=logfont; mydraws[ndraws].mycolor=crT