中财网唐僧团队三点启示:将屏幕保存为图片 将当前MFC程序保存为图片
来源：百度文库 编辑：中财网 时间：2024/04/28 23:00:40
将屏幕保存为图片 将当前MFC程序保存为图片 c++ vc 收藏
将屏幕保存为图片，使用vs2008编译通过。view plaincopy to clipboardprint?
#include "stdafx.h"
#include
#include
int __stdcall WinMain(
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nShowCmd)
{
HWND hwnd = ::GetDesktopWindow();
HDC hDC = ::GetDC(hwnd);//获取屏幕DC
RECT rect;
::GetClientRect(hwnd, &rect);//获取屏幕大小
HDC hDCMem = ::CreateCompatibleDC(hDC);//创建兼容DC
HBITMAP hBitMap = ::CreateCompatibleBitmap(hDC, rect.right, rect.bottom);//创建兼容位图
HBITMAP hOldMap = (HBITMAP)::SelectObject(hDCMem, hBitMap);//将位图选入DC，并保存返回值
::BitBlt(hDCMem, 0, 0, rect.right, rect.bottom, hDC, 0, 0, SRCCOPY);//将屏幕DC的图象复制到内存DC中
CImage image;
image.Attach(hBitMap);
image.Save(_T("c:\\B.jpg"));//如果文件后缀为.bmp，则保存为为bmp格式
image.Detach();
::SelectObject(hDCMem, hOldMap);//选入上次的返回值
//释放
::DeleteObject(hBitMap);
::DeleteDC(hDCMem);
::DeleteDC(hDC);
return 0;
}
#include "stdafx.h"
#include
#includeint __stdcall WinMain(
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nShowCmd)
{
HWND hwnd = ::GetDesktopWindow();
HDC hDC = ::GetDC(hwnd);//获取屏幕DC RECT rect;
::GetClientRect(hwnd, &rect);//获取屏幕大小
HDC hDCMem = ::CreateCompatibleDC(hDC);//创建兼容DC HBITMAP hBitMap = ::CreateCompatibleBitmap(hDC, rect.right, rect.bottom);//创建兼容位图
HBITMAP hOldMap = (HBITMAP)::SelectObject(hDCMem, hBitMap);//将位图选入DC，并保存返回值 ::BitBlt(hDCMem, 0, 0, rect.right, rect.bottom, hDC, 0, 0, SRCCOPY);//将屏幕DC的图象复制到内存DC中 CImage image;
image.Attach(hBitMap);
image.Save(_T("c:\\B.jpg"));//如果文件后缀为.bmp，则保存为为bmp格式
image.Detach(); ::SelectObject(hDCMem, hOldMap);//选入上次的返回值 //释放
::DeleteObject(hBitMap);
::DeleteDC(hDCMem);
::DeleteDC(hDC); return 0;
}
将当前MFC程序（这里是单文档程序）保存为图片，使用vs2005。第一个使用CImage类保存图片，第二个使用BITMAPINFO。第一个：view plaincopy to clipboardprint?
void CMainFrame::OnGetMap()
{
HWND hwnd = this->GetSafeHwnd();
HDC hDC = ::GetWindowDC(hwnd);//获取DC
RECT rect;
::GetWindowRect(hwnd, &rect);//获取屏幕大小
HDC hDCMem = ::CreateCompatibleDC(hDC);//创建兼容DC
HBITMAP hBitMap = ::CreateCompatibleBitmap(hDC, rect.right-rect.left, rect.bottom-rect.top);//创建兼容位图
HBITMAP hOldMap = (HBITMAP)::SelectObject(hDCMem, hBitMap);//将位图选入DC，并保存返回值
::BitBlt(hDCMem, 0, 0, rect.right-rect.left, rect.bottom-rect.top, hDC, 0, 0, SRCCOPY);//将屏幕DC的图象复制到内存DC中
CImage image;//需要#include
image.Attach(hBitMap);
image.Save(_T("c:\\B.jpg"));//如果文件后缀为.bmp，则保存为为bmp格式
image.Detach();
::SelectObject(hDCMem, hOldMap);//选入上次的返回值
//释放
::DeleteObject(hBitMap);
::DeleteDC(hDCMem);
::DeleteDC(hDC);
}
void CMainFrame::OnGetMap()
{ HWND hwnd = this->GetSafeHwnd();
HDC hDC = ::GetWindowDC(hwnd);//获取DC
RECT rect;
::GetWindowRect(hwnd, &rect);//获取屏幕大小
HDC hDCMem = ::CreateCompatibleDC(hDC);//创建兼容DC
HBITMAP hBitMap = ::CreateCompatibleBitmap(hDC, rect.right-rect.left, rect.bottom-rect.top);//创建兼容位图
HBITMAP hOldMap = (HBITMAP)::SelectObject(hDCMem, hBitMap);//将位图选入DC，并保存返回值
::BitBlt(hDCMem, 0, 0, rect.right-rect.left, rect.bottom-rect.top, hDC, 0, 0, SRCCOPY);//将屏幕DC的图象复制到内存DC中
CImage image;//需要#include
image.Attach(hBitMap);
image.Save(_T("c:\\B.jpg"));//如果文件后缀为.bmp，则保存为为bmp格式
image.Detach();
::SelectObject(hDCMem, hOldMap);//选入上次的返回值
//释放
::DeleteObject(hBitMap);
::DeleteDC(hDCMem);
::DeleteDC(hDC);
} 第二个：view plaincopy to clipboardprint?
void CMainFrame::OnGetMap()
{
CDC* pDC = GetWindowDC();
CBitmap bitmap;
CDC memDC ;
CRect rect;
GetWindowRect(rect);
memDC.CreateCompatibleDC(pDC);
bitmap.CreateCompatibleBitmap(pDC,rect.Width(),rect.Height());
memDC.SelectObject(&bitmap);
memDC.BitBlt(0,0,rect.Width(),rect.Height(),pDC,0,0,SRCCOPY);
CFileDialog fDlg(FALSE,_T("bmp"),NULL,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,_T("位图文件|*.bmp"),this);
if (fDlg.DoModal()==IDOK)
{
CString bmpfile = fDlg.GetPathName();
CFile file(bmpfile,CFile::modeCreate|CFile::modeWrite);
BITMAP bInfo;
bitmap.GetBitmap(&bInfo);
//计算调色板大小
int panelsize = 0;
if (bInfo.bmBitsPixel<24) //非真彩色
{
panelsize = pow((double)2,bInfo.bmBitsPixel)*sizeof(RGBQUAD);
}
//定义位图信息
BITMAPINFO* bMapInfo = (BITMAPINFO*)LocalAlloc(LPTR,sizeof(BITMAPINFO)+panelsize);
bMapInfo->bmiHeader.biBitCount = bInfo.bmBitsPixel;
bMapInfo->bmiHeader.biClrImportant = 0;
bMapInfo->bmiHeader.biCompression = 0;
bMapInfo->bmiHeader.biHeight = bInfo.bmHeight;
bMapInfo->bmiHeader.biPlanes = bInfo.bmPlanes;
bMapInfo->bmiHeader.biSize = sizeof(BITMAPINFO);
bMapInfo->bmiHeader.biSizeImage = bInfo.bmHeight*bInfo.bmWidthBytes;
bMapInfo->bmiHeader.biWidth = bInfo.bmWidth;
bMapInfo->bmiHeader.biXPelsPerMeter = 0;
bMapInfo->bmiHeader.biYPelsPerMeter = 0;
//获取位图的实际数据
char* pData = new char[bMapInfo->bmiHeader.biSizeImage];
int len = GetDIBits(pDC->m_hDC,bitmap,0,bInfo.bmHeight,pData,bMapInfo,DIB_RGB_COLORS);
BITMAPFILEHEADER bFileHeader;
bFileHeader.bfType = 0x4D42;
bFileHeader.bfReserved1 = 0;
bFileHeader.bfReserved2 = 0;
bFileHeader.bfSize = sizeof(BITMAPFILEHEADER);
bFileHeader.bfOffBits = sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)+panelsize;
//向文件中写入位图数据
file.Write(&bFileHeader,sizeof(BITMAPFILEHEADER));
file.Write(&bMapInfo->bmiHeader,sizeof(BITMAPINFOHEADER));
file.Write(pData,bMapInfo->bmiHeader.biSizeImage+panelsize);
file.Close();
delete pData;
LocalFree(bMapInfo);
}
bitmap.DeleteObject();
memDC.DeleteDC();
} 本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/hityct1/archive/2009/02/21/3918305.aspx
将屏幕保存为图片，使用vs2008编译通过。view plaincopy to clipboardprint?
#include "stdafx.h"
#include
#include
int __stdcall WinMain(
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nShowCmd)
{
HWND hwnd = ::GetDesktopWindow();
HDC hDC = ::GetDC(hwnd);//获取屏幕DC
RECT rect;
::GetClientRect(hwnd, &rect);//获取屏幕大小
HDC hDCMem = ::CreateCompatibleDC(hDC);//创建兼容DC
HBITMAP hBitMap = ::CreateCompatibleBitmap(hDC, rect.right, rect.bottom);//创建兼容位图
HBITMAP hOldMap = (HBITMAP)::SelectObject(hDCMem, hBitMap);//将位图选入DC，并保存返回值
::BitBlt(hDCMem, 0, 0, rect.right, rect.bottom, hDC, 0, 0, SRCCOPY);//将屏幕DC的图象复制到内存DC中
CImage image;
image.Attach(hBitMap);
image.Save(_T("c:\\B.jpg"));//如果文件后缀为.bmp，则保存为为bmp格式
image.Detach();
::SelectObject(hDCMem, hOldMap);//选入上次的返回值
//释放
::DeleteObject(hBitMap);
::DeleteDC(hDCMem);
::DeleteDC(hDC);
return 0;
}
#include "stdafx.h"
#include
#include
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nShowCmd)
{
HWND hwnd = ::GetDesktopWindow();
HDC hDC = ::GetDC(hwnd);//获取屏幕DC RECT rect;
::GetClientRect(hwnd, &rect);//获取屏幕大小
HDC hDCMem = ::CreateCompatibleDC(hDC);//创建兼容DC HBITMAP hBitMap = ::CreateCompatibleBitmap(hDC, rect.right, rect.bottom);//创建兼容位图
HBITMAP hOldMap = (HBITMAP)::SelectObject(hDCMem, hBitMap);//将位图选入DC，并保存返回值 ::BitBlt(hDCMem, 0, 0, rect.right, rect.bottom, hDC, 0, 0, SRCCOPY);//将屏幕DC的图象复制到内存DC中 CImage image;
image.Attach(hBitMap);
image.Save(_T("c:\\B.jpg"));//如果文件后缀为.bmp，则保存为为bmp格式
image.Detach(); ::SelectObject(hDCMem, hOldMap);//选入上次的返回值 //释放
::DeleteObject(hBitMap);
::DeleteDC(hDCMem);
::DeleteDC(hDC); return 0;
}
将当前MFC程序（这里是单文档程序）保存为图片，使用vs2005。第一个使用CImage类保存图片，第二个使用BITMAPINFO。第一个：view plaincopy to clipboardprint?
void CMainFrame::OnGetMap()
{
HWND hwnd = this->GetSafeHwnd();
HDC hDC = ::GetWindowDC(hwnd);//获取DC
RECT rect;
::GetWindowRect(hwnd, &rect);//获取屏幕大小
HDC hDCMem = ::CreateCompatibleDC(hDC);//创建兼容DC
HBITMAP hBitMap = ::CreateCompatibleBitmap(hDC, rect.right-rect.left, rect.bottom-rect.top);//创建兼容位图
HBITMAP hOldMap = (HBITMAP)::SelectObject(hDCMem, hBitMap);//将位图选入DC，并保存返回值
::BitBlt(hDCMem, 0, 0, rect.right-rect.left, rect.bottom-rect.top, hDC, 0, 0, SRCCOPY);//将屏幕DC的图象复制到内存DC中
CImage image;//需要#include
image.Attach(hBitMap);
image.Save(_T("c:\\B.jpg"));//如果文件后缀为.bmp，则保存为为bmp格式
image.Detach();
::SelectObject(hDCMem, hOldMap);//选入上次的返回值
//释放
::DeleteObject(hBitMap);
::DeleteDC(hDCMem);
::DeleteDC(hDC);
}
void CMainFrame::OnGetMap()
{ HWND hwnd = this->GetSafeHwnd();
HDC hDC = ::GetWindowDC(hwnd);//获取DC
RECT rect;
::GetWindowRect(hwnd, &rect);//获取屏幕大小
HDC hDCMem = ::CreateCompatibleDC(hDC);//创建兼容DC
HBITMAP hBitMap = ::CreateCompatibleBitmap(hDC, rect.right-rect.left, rect.bottom-rect.top);//创建兼容位图
HBITMAP hOldMap = (HBITMAP)::SelectObject(hDCMem, hBitMap);//将位图选入DC，并保存返回值
::BitBlt(hDCMem, 0, 0, rect.right-rect.left, rect.bottom-rect.top, hDC, 0, 0, SRCCOPY);//将屏幕DC的图象复制到内存DC中
CImage image;//需要#include
image.Attach(hBitMap);
image.Save(_T("c:\\B.jpg"));//如果文件后缀为.bmp，则保存为为bmp格式
image.Detach();
::SelectObject(hDCMem, hOldMap);//选入上次的返回值
//释放
::DeleteObject(hBitMap);
::DeleteDC(hDCMem);
::DeleteDC(hDC);
} 第二个：view plaincopy to clipboardprint?
void CMainFrame::OnGetMap()
{
CDC* pDC = GetWindowDC();
CBitmap bitmap;
CDC memDC ;
CRect rect;
GetWindowRect(rect);
memDC.CreateCompatibleDC(pDC);
bitmap.CreateCompatibleBitmap(pDC,rect.Width(),rect.Height());
memDC.SelectObject(&bitmap);
memDC.BitBlt(0,0,rect.Width(),rect.Height(),pDC,0,0,SRCCOPY);
CFileDialog fDlg(FALSE,_T("bmp"),NULL,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,_T("位图文件|*.bmp"),this);
if (fDlg.DoModal()==IDOK)
{
CString bmpfile = fDlg.GetPathName();
CFile file(bmpfile,CFile::modeCreate|CFile::modeWrite);
BITMAP bInfo;
bitmap.GetBitmap(&bInfo);
//计算调色板大小
int panelsize = 0;
if (bInfo.bmBitsPixel<24) //非真彩色
{
panelsize = pow((double)2,bInfo.bmBitsPixel)*sizeof(RGBQUAD);
}
//定义位图信息
BITMAPINFO* bMapInfo = (BITMAPINFO*)LocalAlloc(LPTR,sizeof(BITMAPINFO)+panelsize);
bMapInfo->bmiHeader.biBitCount = bInfo.bmBitsPixel;
bMapInfo->bmiHeader.biClrImportant = 0;
bMapInfo->bmiHeader.biCompression = 0;
bMapInfo->bmiHeader.biHeight = bInfo.bmHeight;
bMapInfo->bmiHeader.biPlanes = bInfo.bmPlanes;
bMapInfo->bmiHeader.biSize = sizeof(BITMAPINFO);
bMapInfo->bmiHeader.biSizeImage = bInfo.bmHeight*bInfo.bmWidthBytes;
bMapInfo->bmiHeader.biWidth = bInfo.bmWidth;
bMapInfo->bmiHeader.biXPelsPerMeter = 0;
bMapInfo->bmiHeader.biYPelsPerMeter = 0;
//获取位图的实际数据
char* pData = new char[bMapInfo->bmiHeader.biSizeImage];
int len = GetDIBits(pDC->m_hDC,bitmap,0,bInfo.bmHeight,pData,bMapInfo,DIB_RGB_COLORS);
BITMAPFILEHEADER bFileHeader;
bFileHeader.bfType = 0x4D42;
bFileHeader.bfReserved1 = 0;
bFileHeader.bfReserved2 = 0;
bFileHeader.bfSize = sizeof(BITMAPFILEHEADER);
bFileHeader.bfOffBits = sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)+panelsize;
//向文件中写入位图数据
file.Write(&bFileHeader,sizeof(BITMAPFILEHEADER));
file.Write(&bMapInfo->bmiHeader,sizeof(BITMAPINFOHEADER));
file.Write(pData,bMapInfo->bmiHeader.biSizeImage+panelsize);
file.Close();
delete pData;
LocalFree(bMapInfo);
}
bitmap.DeleteObject();
memDC.DeleteDC();
} 本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/hityct1/archive/2009/02/21/3918305.aspx
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