Image Loading... Image Loading...
Click Here to Visit Our Sponsor

Home
News
Cartoon

Books
Reviews

SimTel
Compress
Database
Delphi
Desktop
Diskutl
Fileutl
Graphics
Inet
Mmedia
Prog
Scrsave
Util

C/C++
CodeBase!
Libraries
Tutorials
WebLinks

Pascal
Libraries
WebLinks



Home
CodeBase!
Snippets that will make you work faster


Creating buttons
  #define BUTTON_QUIT 20
  #define BUTTON_RESTART 21

  // hwndMain = you main window handle
  // hInstance = passed to you via WinMain

  CreateWindow("BUTTON", "Press me to quit", BS_PUSHBUTTON | BS_TEXT, x, y,
      width, height, hwndMain, (HMENU) BUTTON_QUIT, hInstance, NULL);

  CreateWindow("BUTTON", "Press me to restart", BS_PUSHBUTTON | BS_TEXT, x, y,
      width, height, hwndMain, (HMENU) BUTTON_RESTART, hInstance, NULL);

Directory Dialogs
  BROWSEINFO bi;
  char dirname[100];

  bi.hwndOwner=NULL;
  bi.pidlRoot=NULL;    //start from desktop
  bi.pszDisplayName =dirname;
  bi.lpszTitle="Select Directory";
  bi.ulFlags=BIF_RETURNONLYFSDIRS;
  bi.lpfn=NULL;  
  bi.lParam=NULL;    
  bi.iImage=NULL;
  SHBrowseForFolder(&bi);
  m_TargetDir=dirname;
  UpdateData(FALSE);

Load BMP's without GDI
BOOL LoadSplashBitMap(int *xSize, int *ySize) { 

  HANDLE hBitMapFile = INVALID_HANDLE_VALUE ;
  BITMAPFILEHEADER bmfh ;
  BITMAPINFOHEADER bmih ;
  LPBITMAPINFO lpbmi ;
  LPVOID lpvBits ;
  DWORD dwRead ;
  HDC hDC ;


  /* Retrieve a handle identifying the file */

  if ((hBitMapFile = CreateFile(SPLASHFILE, GENERIC_READ,
    FILE_SHARE_READ,
    (LPSECURITY_ATTRIBUTES) NULL,
    OPEN_EXISTING,
    FILE_ATTRIBUTE_READONLY,
    (HANDLE)>NULL)) == INVALID_HANDLE_VALUE)
    return FALSE;


  /* Retrieve the BITMAPFILEHEADER structure */

  if (!ReadFile(hBitMapFile, &bmfh, sizeof(BITMAPFILEHEADER),
     &dwRead, (LPOVERLAPPED)NULL) ||
    dwRead != sizeof(BITMAPFILEHEADER)) goto Error ;


  /* Retrieve the BITMAPINFOHEADER structure */

  if (!ReadFile(hBitMapFile, &bmih, sizeof(BITMAPINFOHEADER), 
    &dwRead, (LPOVERLAPPED)NULL) ||
    dwRead != sizeof(BITMAPINFOHEADER)) goto Error ;


  /* Allocate memory for the BITMAPINFO structure */

  if ((hMem1 = GlobalAlloc(GHND, >sizeof(BITMAPINFOHEADER)+((1
    bmih.biBitCount)*sizeof(RGBQUAD))))
    == NULL || (lpbmi = GlobalLock(hMem1)) == NULL) goto Error ;


  /* Load BITMAPINFOHEADER into the BITMAPINFO structure */

  lpbmi->bmiHeader.biSize = bmih.biSize ;
  lpbmi->bmiHeader.biWidth = bmih.biWidth ;
  lpbmi->bmiHeader.biHeight = bmih.biHeight ;
  lpbmi->bmiHeader.biPlanes = bmih.biPlanes ;
  lpbmi->bmiHeader.biBitCount = bmih.biBitCount ;
  lpbmi->bmiHeader.biCompression = bmih.biCompression ;
  lpbmi->bmiHeader.biSizeImage = bmih.biSizeImage ;
  lpbmi->bmiHeader.biXPelsPerMeter = bmih.biXPelsPerMeter ;
  lpbmi->bmiHeader.biYPelsPerMeter = bmih.biYPelsPerMeter ;
  lpbmi->bmiHeader.biClrUsed = bmih.biClrUsed ;
  lpbmi->bmiHeader.biClrImportant = bmih.biClrImportant ;


  /* Retrieve the color table.

  if (!ReadFile(hBitMapFile, lpbmi->bmiColors,
    ((1<< bmih.biBitCount)*sizeof(RGBQUAD)),
    &dwRead, (LPOVERLAPPED) NULL) ||
    dwRead != ((1<

  if (!ReadFile(hBitMapFile, lpvBits, (bmfh.bfSize - 
      bmfh.bfOffBits), &dwRead, (LPOVERLAPPED) NULL) ||
      dwRead != (bmfh.bfSize - bmfh.bfOffBits)) goto Error ;


  /* Create a bitmap from the data stored in the .BMP file */

  hDC = GetDC(hMainWnd) ;

  hBitMap = CreateDIBitmap(hDC, &bmih, CBM_INIT, lpvBits,
    lpbmi, DIB_RGB_COLORS) ;

  ReleaseDC(hMainWnd, hDC) ;
  if (hBitMap == NULL) goto Error;


  /* Unlock the global memory objects and close the .BMP file */

  GlobalUnlock(hMem1) ;> GlobalUnlock(hMem2) ;
  CloseHandle(hBitMapFile) ;


  /* Return size of bitmap */

  *xSize = bmih.biWidth ;
  *ySize = bmih.biHeight ;
  return TRUE ;

  /* An error occured: clean up mess before leaving */
Error:
  if (hMem1) GlobalFree(hMem1) ;
  if (hMem2) GlobalFree(hMem2) ;
  if (hBitMapFile != INVALID_HANDLE_VALUE) CloseHandle(hBitMapFile);
  return FALSE ;
}

Identifying 16 bit surfaces in DirectX (by Christoph Meyer)

DWORD redbits, greenbits, bluebits, rgbbits;

bool MyGetPixelFormat() { // init the vars: redbits = greenbits = bluebits = rgbbits = 0; // the PixelFormat structure: DDPIXELFORMAT DDPixelFormat; DDPixelFormat.dwSize = sizeof(DDPIXELFORMAT); // donít forget this! // fill the pixel-format structure: if (lpddsprimary->GetPixelFormat(&DDPixelFormat)!=DD_OK) return false; // * error * // // fill the global vars with values from the struct: redbits = DDPixelFormat.dwRBitMask; greenbits = DDPixelFormat.dwGBitMask; bluebits = DDPixelFormat.dwBBitMask; rgbbits = DDPixelFormat.dwRGBBitCount; // now let us see, how much bits each color-channel has got (5 or 6): int bit = 0; bool done = false; DWORD count = 1; // look for # of blue bits: while (!done) { if (bluebits & count) { bit++; count <<= 1; } else done = true; } bluebits = bit; bit = 0; done = false; // look for # of green bits: while (!done) { if (greenbits & count) { bit++; count <<= 1; } else done = true; } greenbits = bit; bit = 0; done = false; // look for # of red bits: while (!done) { if (redbits & count) { bit++; count <<= 1; } else done = true; } redbits = bit; // Now the red-, green- and bluebits are filled return true; }

Convert 256 color pixel to 16 bit (by Christoph Meyer)
  USHORT _RGB16BIT (int r , int g, int b)
  {
    // the return value
    USHORT retval = 0;

    // max value has to be either 32 or 64,
    // depending on the number of bits of the channel:
    if (redbits == 6) r >>= 2; else r >>= 3;
    if (greenbits == 6) g >>= 2; else g >>= 3;
    if (bluebits == 6) b >>= 2; else b >>= 3;

    // as I said, I donít know how many modes there are. If you do, shorten
    // the function by removing unnessessary lines above.
    // And please tell me! ;-)

    // now build a word of the three channels by shifting them by the
    // _correct_ number of bits:
    retval = (USHORT) (b + (g << bluebits) + (r << (bluebits + greenbits)));

    // return the color:
    return(retval);
}

Image Loading...