CPicture - The Yovav (Horror) PictureShow


After many days of searching (and not finding) a way to load a JPG from a resource and show it on a *dialog based* application, I decided to take steps.

I created what I call a very *simple* and useful class. It can easily be implemented by adding it to a project. You don't have to be a real JPEG freak and invent all the header reading from the beginning (It uses the IPicture interface jst as Internet Explorer does)

About The Project

I Was a little carried away with this "ACDSee Alike" picture viewer. As it was not my main purpose - I didn't have the time to make it "Perfect". If you feel lucky and want to improve it here and there - please share it.


  Picture (Implementations) Version 1.00

  Routines: 4 Showing Picture Files...
            (.BMP .DIB .EMF .GIF .ICO .JPG .WMF)

class CPicture
  void FreePictureData();
  BOOL Load(CString sFilePathName);
  BOOL Load(UINT ResourceName, LPCSTR ResourceType);
  BOOL LoadPictureData(BYTE* pBuffer, int nSize);
  BOOL SaveAsBitmap(CString sFilePathName);
  BOOL Show(CDC* pDC, 
            CPoint LeftTop, 
            CPoint WidthHeight,
            int MagnifyX,
            int MagnifyY);
  BOOL Show(CDC* pDC, CRect DrawRect);
  BOOL ShowBitmapResource(CDC* pDC,
                          const int BMPResource,
                          CPoint LeftTop);
  BOOL UpdateSizeOnDC(CDC* pDC);

  virtual ~CPicture();

  IPicture* m_IPicture; // Same As
             // LPPICTURE (typedef IPicture __RPC_FAR *LPPICTURE)

  LONG      m_Height; // Height (In Pixels Ignor What 
                      //      Current Device Context Uses)
  LONG      m_Weight; // Size Of The Image Object In 
                      //      Bytes (File OR Resource)
  LONG      m_Width;  // Width (In Pixels Ignor What 
                      //      Current Device Context Uses)
//~~~~~~~~~Example & Usage 4 Dummies~~~~~~~~~~~~~~
//  U Need 2 Add "CPicture.CPP" and "CPicture.H" Into 
//  Your Project (From FileView) So U Will Get Control 
//  Over The Functions In This Class, Then U Can Create 
//  a Picture Object And Show It On a Device Context
//  CPicture m_Picture;  // Create a Picture Object 
//                       //    (An Instance Of This Class)
//  #include "Picture.h" // Make Sure U Include This 
//                       //     Where U Gonna Create The Object...
//  Load Picture Data Into The IPicture Interface (.BMP 
//                         .DIB .EMF .GIF .ICO .JPG .WMF)
//  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//  m_Picture.Load("Test.JPG"); // Load From a File - 
//                              //   Just Load It (Show Later)
//  m_Picture.Load(IDR_TEST, "JPG"); // Load From a Resource 
//                                   //- Just Load It (Show Later)
//  (U Must Include IDR_TEST In Your Resources Under a Custom 
//        Name, 4 Example - "JPG")
//  When Using DC Object On a *Dialog Based* Application 
//                                     (CPaintDC dc(this);)
//  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//  m_Picture.UpdateSizeOnDC(&dc); // Get Picture Dimentions
//                                     //  In Pixels
//  m_Picture.Show(&dc,
//                 CPoint(0,0), 
//                 CPoint(m_Picture.m_Width, m_Picture.m_Height),
//                 0,0);
//  // Change Original Dimentions:
//  m_Picture.Show(&dc, CRect(0,0,100,100)); 
//  // Show Bitmap Resource:
//  m_Picture.ShowBitmapResource(&dc, IDB_TEST, CPoint(0,0));
//  OR When Using a Pointer On a "Regular" MFC Application (CDC* pDC)
//  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//  m_Picture.UpdateSizeOnDC(pDC); // Get Picture Dimentions In Pixels
//  m_Picture.Show(pDC, 
//                 CPoint(0,0), 
//                 CPoint(m_Picture.m_Width, m_Picture.m_Height),
//                 0,0);
//  // Change Original Dimentions:
//  m_Picture.Show(pDC, CRect(0,0,100,100));
//  // Show Bitmap Resource:
//  m_Picture.ShowBitmapResource(pDC, IDB_TEST, CPoint(0,0));
//  Show Picture Information
//  ~~~~~~~~~~~~~~~~~~~~~~~~
//  CString S;
//  S.Format("Size = %4d\nWidth = %4d\nHeight = %4d\nWeight = %4d\n",
//           m_Picture.m_Weight, 
//           m_Picture.m_Width, 
//           m_Picture.m_Height,
//           m_Picture.m_Weight);
//  AfxMessageBox(S);
//~~~~~~~~~~~~~~~~~Cut The Bull Here~~~~~~~~~~~~~~~~~~~~~


Download demo (SDI) project - 193Kb
Download source (CPicture class only) - 7Kb


Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Today, users, applications, and data exist in more places than ever before, creating an unprecedented challenge for IT. How can IT achieve the flexibility and agility it needs to offer multiple types of applications in multiple locations? To better serve business demands for information everywhere, enterprises must develop new strategies for optimizing multiple kinds of networks. Read this white paper to learn how hybrid networks provide an unprecedented level of network dynamism, enterprise agility, and the …

  • Although much publicity around computer security points to hackers and other outside attacks, insider threats can be particularly insidious and dangerous, whether caused by malice or employee negligence. In this report, you learn the eight most significant cybersecurity threats that could impact your organization (at any time), Forbes cited internal threats as No. 3, noting that internal attacks can be "the most devastating" due to the amount of damage privileged users can inflict and the type of data they can …

Most Popular Programming Stories

More for Developers

RSS Feeds

Thanks for your registration, follow us on our social networks to keep up-to-date