JPG, Dynamic GIF, BMP Some common solutions
Common way 0, use GIF89A class: Advantage: A strike is all over the day, up to dynamic GIF, down to static JPG, BMP two sentences, simple and convenient and disadvantages: sometimes edge effects, some images will be very obvious : # include "gif89a.h" CGIF89A * GIF; Add: gif = new cgif89a (this-> m_hwnd); gif-> Load ("Test.gif"); gif-> setPosition (100, 100); gif-> play (); // gif-> pause (true); // pause True) To pause GIF play // gif-> pause (false); // pause (false) To continue with GIF Playing Common Ways 1, use iPicture: Advantages: MS early picture class, you can display all Static picture, display dynamic GIF still needs a GIF image storage structure gifimage, if you are interested, you can see how Xuebi shows dynamic GIF disadvantages in VC: users are not very convenient, Xue Bi Articles are introduced RC static editing shows dynamic GIF approach, I originally intended to rewrite the GIF class, found GIF89a, so I didn't make more work modes: cstring spath; sspath = _t ("1.jpg" ); // cdc * PDC = getdlgitem (IDC_Control) -> getdc (); // get control DC CRECT ZCRECT; GetClientRect (& ZCRECT); Showjpggif (PDC, Spath, ZcRect.Left, ZcRect .top, zcRect.width (), zcRect.Height ()); Function Implementation BOOL Showjpggif (CDC * PDC, CString Strpath, Int x, Int Y, Int Width, Int Height) { iStream * PSTM; cfilestatus fstatus; cfile file; long cb; // Open file and detect validity of files IF (file. Open (StrPath, Cfile & :: ModeRead &&) File.GetStatus (StrPath, FSTA Tus) && ((cb = fstatus.m_size)! = -1)) {HGLOBAL HGLOBAL = GLOBALLOC (GMEM_MOVEABLE , CB); lpvoid pvdata = NULL; IF (hglobal! = null) { pvdata = globalock (hglobal); IF (pvdata! = Null) { File.read (PVDATA, CB); Globalunlock (Hglobal); CreateStreamonhglobal (Hglobal, True, & PSTM); } } } Else {return false; } // Open file end // Display Pictures in JPEG and GIF formats, GIF can only display one frame, but also not display movies, // To display animation GIF, please use Active control //.
ipicture * ppic; // load image from File Stream IF (Succeeded (OleLoadPicture (PSTM, FSTATUS.M_SIZE, TRUE, IID_IPICTURE, (LPVOID *) & PPIC)) {ole_xsize_himetric HMWIDTH; OLE_YSIZE_HIMETRIC hmheight; ppic-> get_width (& hmwidth); ppic-> get_height (& hmheight); double fx, fy; // get image height and width FX = (double) PDC-> getDevicecaps (horzres) * (double) HMWIDTH / (Double) PDC-> getDeviceCaps (Horzsize ) * 100.0; FY = (double) PDC-> getDeviceCaps (vertres) * (double) hmheight / (double) PDC-> getDeviceCaps (Vertsize) * 100.0; // Use render function display (failed (ppic-> render (* PDC, X, Y, Width, Height, 0, hmheight , hmwidth, null)) { ppic-> release (); return false; } PPIC-> Release (); } ELSE {Return false; } return true;} Common way 2, using MS CIMAGE Advantages: MS CIMAGE Advantages: MFC / ATL Universal, should be reliable, easy to use Easy, more flexible, dedicated to replacing the iPicture class shortcomings: or to solve dynamic GIF issues, #include
