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

  • A help desk is critical to the operations of an IT services business. As a centralized intake location for technical issues, it allows for a responsive and timely solution to get clients and their staff back to business as usual. In addition to handling immediate IT issues, a help desk performs several proactive tasks to ensure clients' IT systems remain operational and downtime is minimized. Thus, utilizing a help desk and following best practices can improve the productivity, efficiency and satisfaction of …

  • With JRebel, developers get to see their code changes immediately, fine-tune their code with incremental changes, debug, explore and deploy their code with ease (both locally and remotely), and ultimately spend more time coding instead of waiting for the dreaded application redeploy to finish. Every time a developer tests a code change it takes minutes to build and deploy the application. JRebel keeps the app server running at all times, so testing is instantaneous and interactive.

Most Popular Programming Stories

More for Developers

Latest Developer Headlines

RSS Feeds