// Paint_001.cpp : 定义应用程序的入口点。//#include "stdafx.h"#include "Paint_001.h"#include<vector>#include<string.h>#include<iostream>using namespace std;#ifdef UNICODE #undef UNICODE#endif#ifdef UNICODE #ifndef TSTRING #define TSTRING std::wstring #endif #else #ifndef TSTRING #define TSTRING std::string #endif #endif #define MAX_LOADSTRING 100// 全局变量:HINSTANCE hInst;// 当前实例TCHAR szTitle[MAX_LOADSTRING];// 标题栏文本TCHAR szWindowClass[MAX_LOADSTRING];// 主窗口类名// 此代码模块中包含的函数的前向声明:ATOMMyRegisterClass(HINSTANCE hInstance);BOOLInitInstance(HINSTANCE, int);LRESULT CALLBACKWndProc(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: 在此放置代码。MSG msg;HACCEL hAccelTable;// 初始化全局字符串LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);LoadString(hInstance, IDC_PAINT_001, szWindowClass, MAX_LOADSTRING);MyRegisterClass(hInstance);// 执行应用程序初始化:if (!InitInstance (hInstance, nCmdShow)){return FALSE;}hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_PAINT_001));// 主消息循环:while (GetMessage(&msg, NULL, 0, 0)){if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)){TranslateMessage(&msg);DispatchMessage(&msg);}}return (int) msg.wParam;}//// 函数: MyRegisterClass()//// 目的: 注册窗口类。//// 注释://// 仅当希望// 此代码与添加到 Windows 95 中的“RegisterClassEx”// 函数之前的 Win32 系统兼容时，才需要此函数及其用法。调用此函数十分重要，// 这样应用程序就可以获得关联的// “格式正确的”小图标。//ATOM MyRegisterClass(HINSTANCE hInstance){WNDCLASSEX wcex;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_PAINT_001));wcex.hCursor= LoadCursor(NULL, IDC_ARROW);wcex.hbrBackground= (HBRUSH)(COLOR_WINDOW+1);wcex.lpszMenuName= MAKEINTRESOURCE(IDC_PAINT_001);wcex.lpszClassName= szWindowClass;wcex.hIconSm= LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));return RegisterClassEx(&wcex);}//// 函数: InitInstance(HINSTANCE, int)//// 目的: 保存实例句柄并创建主窗口//// 注释://// 在此函数中，我们在全局变量中保存实例句柄并// 创建和显示主程序窗口。//BOOL InitInstance(HINSTANCE hInstance, int nCmdShow){ HWND hWnd; hInst = hInstance; // 将实例句柄存储在全局变量中 hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL); if (!hWnd) { return FALSE; } ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); return TRUE;}//// 函数: WndProc(HWND, UINT, WPARAM, LPARAM)//// 目的: 处理主窗口的消息。//// WM_COMMAND- 处理应用程序菜单// WM_PAINT- 绘制主窗口// WM_DESTROY- 发送退出消息并返回//////====================================save====================================//BOOL WriteBmp(const TSTRING &strFile,HDC hdc);LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam){int wmId, wmEvent;PAINTSTRUCT ps;HDC hdc; static POINT posStart; static POINT posCur; static BOOL bMouseDown = FALSE; static HPEN hPen = NULL; static int iRight ,iBottom; static RECT rectClient; static HDC hPaintDc; static HDC hOrignalDc = NULL; static HBITMAP hPaintBit; static HBITMAP hOriginalBit; static HBRUSH hBrush; RECT reErase; HDC hdcTemp; RECT re; HDC test; static char acName[100]="G:\\"; char strNum[20]; static int num =0; string str;switch (message){ case WM_CREATE: hPen = CreatePen(PS_DASHDOTDOT,4,RGB(0,0,0)); rectClient.left = 0; rectClient.top = 0; hdcTemp = GetDC(hWnd); hOrignalDc = CreateCompatibleDC(hdcTemp); hPaintDc = CreateCompatibleDC(hdcTemp); SelectObject(hPaintDc,hPen); // hBrush =(HBRUSH) GetStockObject(NULL_BRUSH); //SelectObject(hPaintDc,hBrush); ReleaseDC(hWnd,hdcTemp); break;case WM_COMMAND:wmId = LOWORD(wParam);wmEvent = HIWORD(wParam);// 分析菜单选择:switch (wmId){case IDM_ABOUT:DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);break;case IDM_EXIT:DestroyWindow(hWnd);break;default:return DefWindowProc(hWnd, message, wParam, lParam);}break; case WM_SIZE: OutputDebugStringA("size\n"); rectClient.right = LOWORD(lParam); rectClient.bottom = HIWORD(lParam); if(hPaintBit !=NULL) { DeleteObject(hPaintBit); } if(hOriginalBit !=NULL) { DeleteObject(hOriginalBit); } hdcTemp = GetDC(hWnd); hOriginalBit = CreateCompatibleBitmap(hdcTemp,rectClient.right,rectClient.bottom); hPaintBit = CreateCompatibleBitmap(hdcTemp,rectClient.right,rectClient.bottom); SelectObject(hPaintDc,hPaintBit); SelectObject(hOrignalDc,hOriginalBit); PatBlt (hPaintDc,0,0,rectClient.right,rectClient.bottom,PATCOPY); PatBlt(hOrignalDc,0,0,rectClient.right,rectClient.bottom,PATCOPY); ReleaseDC(hWnd,hdcTemp);case WM_PAINT:hdc = BeginPaint(hWnd, &ps);// TODO: 在此添加任意绘图代码... //SelectObject(hdc,hPen); //Rectangle(hdc,posStart.x,posStart.y,posCur.x,posCur.y); if(ps.rcPaint.left == 0 && ps.rcPaint.right == rectClient.right && ps.rcPaint.top==0 && ps.rcPaint.bottom == rectClient.bottom) { //全部无效 StretchBlt(hdc,0,0,rectClient.right,rectClient.bottom,hOrignalDc,0,0,rectClient.right,rectClient.bottom,SRCCOPY); OutputDebugStringA("redraw\n"); } else { //StretchBlt(hdc,0,0,rectClient.right,rectClient.bottom,hOrignalDc,0,0,rectClient.right,rectClient.bottom,SRCCOPY); // BitBlt(hdc,0,0,rectClient.right,rectClient.bottom,hPaintDc,0,0,SRCCOPY); // BitBlt(hdc,0,0,rectClient.right,rectClient.bottom,hOrignalDc,0,0,SRCCOPY); StretchBlt(hdc,posStart.x,posStart.y,posCur.x-posStart.x,posCur.y-posStart.y,hOrignalDc,posStart.x,posStart.y,posCur.x-posStart.x,posCur.y-posStart.y,SRCCOPY); StretchBlt(hdc,posStart.x,posStart.y,posCur.x-posStart.x,posCur.y-posStart.y,hPaintDc,posStart.x,posStart.y,posCur.x-posStart.x,posCur.y-posStart.y,SRCAND); // StretchBlt(hOrignalDc,posStart.x,posStart.y,posCur.x-posStart.x,posCur.y-posStart.y,hdc,posStart.x,posStart.y,posCur.x-posStart.x,posCur.y-posStart.y,SRCCOPY); } EndPaint(hWnd, &ps);break; case WM_LBUTTONDOWN: SetCapture(hWnd); bMouseDown = true; posStart.x =LOWORD(lParam); posStart.y = HIWORD(lParam); iRight = posStart.x; iBottom = posStart.y; break; case WM_MOUSEMOVE: if(bMouseDown==TRUE) { posCur.x = LOWORD(lParam); posCur.y = HIWORD(lParam); if(posCur.x > iRight) { iRight =posCur.x; } if(posCur.y > iBottom) { iBottom = posCur.y; } reErase.left = posStart.x; reErase.right = iRight; reErase.top = posStart.y; reErase.bottom = iBottom; Rectangle(hPaintDc,posStart.x,posStart.y,posCur.x,posCur.y); InvalidateRect(hWnd,&reErase,TRUE); } break; case WM_LBUTTONUP: ReleaseCapture(); bMouseDown = false; posCur.x = LOWORD(lParam); posCur.y = HIWORD(lParam); if(posCur.x > iRight) { iRight =posCur.x; } if(posCur.y > iBottom) { iBottom = posCur.y; } reErase.left = posStart.x; reErase.right = iRight; reErase.top = posStart.y; reErase.bottom = iBottom; test = GetDC(NULL); hdcTemp = GetDC(hWnd); BitBlt(hOrignalDc,0,0,rectClient.right,rectClient.bottom,hdcTemp,0,0,SRCCOPY); ReleaseDC(hWnd,test); ReleaseDC(hWnd,hdcTemp); InvalidateRect(hWnd,&reErase,TRUE); OutputDebugStringA("up\n"); break;case WM_DESTROY: DeleteObject(hPen); DeleteObject(hPaintBit); DeleteObject(hOriginalBit); // DeleteObject(hBrush); DeleteDC(hPaintDc); DeleteDC(hOrignalDc); PostQuitMessage(0);break;default:return DefWindowProc(hWnd, message, wParam, lParam);}return 0;}// “关于”框的消息处理程序。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;}//============================================save pic======================================// BOOL WriteBmp(const TSTRING &strFile,HDC hdc); BOOL WriteBmp(const TSTRING &strFile,const std::vector<BYTE> &vtData,const SIZE &sizeImg); BOOL WriteBmp(const TSTRING &strFile,HDC hdc,const RECT &rcDC); BOOL WriteBmp(const TSTRING &strFile,const std::vector<BYTE> &vtData,const SIZE &sizeImg) { BITMAPINFOHEADER bmInfoHeader = {0}; bmInfoHeader.biSize = sizeof(BITMAPINFOHEADER); bmInfoHeader.biWidth = sizeImg.cx; bmInfoHeader.biHeight = sizeImg.cy; bmInfoHeader.biPlanes = 1; bmInfoHeader.biBitCount = 24; //Bimap file header in order to write bmp file BITMAPFILEHEADER bmFileHeader = {0}; bmFileHeader.bfType = 0x4d42; //bmp bmFileHeader.bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER); bmFileHeader.bfSize = bmFileHeader.bfOffBits + ((bmInfoHeader.biWidth * bmInfoHeader.biHeight) * 3); ///3=(24 / 8) HANDLE hFile = CreateFileA(strFile.c_str(),GENERIC_WRITE,0,NULL,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL); if(hFile == INVALID_HANDLE_VALUE) { return FALSE; } DWORD dwWrite = 0; WriteFile(hFile,&bmFileHeader,sizeof(BITMAPFILEHEADER),&dwWrite,NULL); WriteFile(hFile,&bmInfoHeader, sizeof(BITMAPINFOHEADER),&dwWrite,NULL); WriteFile(hFile,&vtData[0], vtData.size(),&dwWrite,NULL); CloseHandle(hFile); return TRUE; } BOOL WriteBmp(const TSTRING &strFile,HDC hdc) { int iWidth = GetDeviceCaps(hdc,HORZRES); int iHeight = GetDeviceCaps(hdc,VERTRES); RECT rcDC = {0,0,iWidth,iHeight}; return WriteBmp(strFile,hdc,rcDC); } BOOL WriteBmp(const TSTRING &strFile,HDC hdc,const RECT &rcDC) { BOOL bRes = FALSE; BITMAPINFO bmpInfo = {0}; BYTE *pData = NULL; SIZE sizeImg = {0}; HBITMAP hBmp = NULL; std::vector<BYTE> vtData; HGDIOBJ hOldObj = NULL; HDC hdcMem = NULL; //Initilaize the bitmap information bmpInfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER); bmpInfo.bmiHeader.biWidth = rcDC.right - rcDC.left; bmpInfo.bmiHeader.biHeight = rcDC.bottom - rcDC.top; bmpInfo.bmiHeader.biPlanes = 1; bmpInfo.bmiHeader.biBitCount = 24; //Create the compatible DC to get the data hdcMem = CreateCompatibleDC(hdc); if(hdcMem == NULL) { goto EXIT; } //Get the data from the memory DC hBmp = CreateDIBSection(hdcMem,&bmpInfo,DIB_RGB_COLORS,reinterpret_cast<VOID **>(&pData),NULL,0); if(hBmp == NULL) { goto EXIT; } hOldObj = SelectObject(hdcMem, hBmp); //Draw to the memory DC sizeImg.cx = bmpInfo.bmiHeader.biWidth; sizeImg.cy = bmpInfo.bmiHeader.biHeight; StretchBlt(hdcMem, 0, 0, sizeImg.cx, sizeImg.cy, hdc, rcDC.left, rcDC.top, rcDC.right - rcDC.left + 1, rcDC.bottom - rcDC.top + 1, SRCCOPY); vtData.resize(sizeImg.cx * sizeImg.cy * 3); memcpy(&vtData[0],pData,vtData.size()); bRes = WriteBmp(strFile,vtData,sizeImg); SelectObject(hdcMem, hOldObj); EXIT: if(hBmp != NULL) { DeleteObject(hBmp); } if(hdcMem != NULL) { DeleteDC(hdcMem); } return bRes; }
