LBitmapBase::LBitmapBase

#include "ltwrappr.h"

L_VOID LBitmapBase::LBitmapBase()

L_VOID LBitmapBase::LBitmapBase(uWidth, uHeight, uBitsPerPixel=24, uOrder=ORDER_BGR, pPalette=NULL, uViewPerspective=TOP_LEFT, crFill=0, uMemory=TYPE_CONV, pData=NULL, dwSize=0)

L_VOID LBitmapBase::LBitmapBase(pInfo, pBits)

L_VOID LBitmapBase::LBitmapBase(hDC, hBitmap, hPalette)

L_VOID LBitmapBase::LBitmapBase(pBitmapHandle)

Constructs and initializes the member variables of the class object.

Returns

None.

Comments

These are the constructors for the LBitmapBase class. They construct and initialize the member variables of the class object.

LBitmapBase::LBitmapBase(void) will initialize the bitmap width, height, and bits per pixel to 0.

LBitmapBase::LBitmapBase(uWidth, uHeight, uBitsPerPixel, uOrder, pPalette, uViewPerspective, crFill, uMemory) constructs an LBitmapBase object and allocates a bitmap with the desired width, height, bits per pixel, color order, view perspective and memory type. You can check for successful allocation by calling the LBitmapBase::IsAllocated() member function. Even if the allocation fails, the class object is still constructed.

LBitmapBase::LBitmapBase(pInfo, pBits) constructs an LBitmapBase object and allocates a bitmap using the passed bitmap info and data (DIB). You can check for successful allocation by calling the LBitmapBase::IsAllocated() member function. Even if the allocation fails, the class object is still constructed.

LBitmapBase::LBitmapBase(hDC, hBitmap, hPalette) constructs an LBitmapBase object and allocates a bitmap using the passed hBitmap (DDB). You can check for successful allocation by calling the LBitmapBase::IsAllocated() member function. Even if the allocation fails, the class object is still constructed.

LBitmapBase::LBitmapBase(pBitmapHandle) constructs an LBitmapBase object and allocates a bitmap from another LEAD bitmap handle. You can check for successful allocation by calling the LBitmapBase::IsAllocated() member function. Even if the allocation fails, the class object is still constructed.

Required DLLs and Libraries

See Also

Example

This is the example for LBitmapBase::LBitmapBase():

// this will call the default constructor and destructor when it is out of scope

L_INT LBitmapBase__LBitmapBaseFirstExample()
{
   
   LBitmapBase MyBitmap;
   return SUCCESS;
}
/*This is the example for LBitmapBase::LBitmapBase(uWidth, uHeight, uBitsPerPixel, uOrde, pPalette, uViewPerspective, crFill, uMemory, pData, dwSize):*/
L_INT LBitmapBase__LBitmapBaseSecondExample()
{
   LBitmapBase      MyBitmap(100, 200, 24, ORDER_BGR, NULL, TOP_LEFT, 0, TYPE_CONV);
   if(MyBitmap.IsAllocated())
   {
      //   Do something�.
   }
   return SUCCESS;
}
/*This is the example for LBitmapBase::LBitmapBase(pInfo, pBits):*/
L_INT LBitmapBase__LBitmapBaseThirdExample()
{
   LBitmapBase TmpBitmap;    
   HGLOBAL hDIB;
   BITMAPINFO   *pInfo;
   L_UCHAR  *pBits;     
   L_INT nColorData;  
   L_INT nRet;
   // Load a bitmap at 8 bits per pixel so that we can demonstrate palette handling 
   nRet =TmpBitmap.Load (TEXT("%UserProfile%\\My Documents\\LEADTOOLS Images\\image3.cmp"), 8, ORDER_BGR);
   if(nRet !=SUCCESS)
      return nRet;
   hDIB = TmpBitmap.ConvertToDIB(DIB_BITMAPV5HEADER);
   pInfo = (BITMAPINFO  *) GlobalLock( hDIB );
   if(pInfo->bmiHeader.biBitCount <= 8)
      nColorData = 1 << pInfo->bmiHeader.biBitCount;
   else
      nColorData = 0;
   pBits = (L_UCHAR  *) pInfo + sizeof(BITMAPINFOHEADER) + (nColorData * sizeof(RGBQUAD));
   LBitmapBase MyBitmap(pInfo, pBits);
   GlobalUnlock(hDIB) ;
   GlobalFree(hDIB);
   nRet =TmpBitmap.Free();
   if(nRet !=SUCCESS)
      return nRet;
   return SUCCESS;
}
/*This is the example for LBitmapBase::LBitmapBase(hDC, hBitmap, hPalette):*/
L_INT LBitmapBase__LBitmapBaseForthExample(HINSTANCE hAppInstance)
{
   HBITMAP    hBitmap=LoadBitmap(hAppInstance,TEXT("%UserProfile%\\My Documents\\LEADTOOLS Images\\Bitmap1"));
   HDC       hDC=GetDC(0);
   LBitmapBase    MyBitmap(hDC, hBitmap, 0);
   ReleaseDC(0,hDC);
   return SUCCESS;
}
/*This is the example for LBitmapBase::LBitmapBase(pBitmapHandle):*/
L_INT LBitmapBase__LBitmapBaseFifthExample()
{
   L_INT nRet;
   BITMAPHANDLE hBitmap;
   
   nRet = L_LoadBitmap(TEXT("%UserProfile%\\My Documents\\LEADTOOLS Images\\image1.cmp"), &hBitmap,sizeof(hBitmap), 0, ORDER_RGB,NULL,NULL);
   if(nRet !=SUCCESS)
      return nRet;
   LBitmapBase MyBitmap(&hBitmap);
   return SUCCESS;
}