C / C++ / MFC

<br />
m_list.SetItemState (1,LVIS_SELECTED, LVIS_SELECTED); <br />

<br />
m_list.SetItemState (1,0, LVIS_SELECTED); <br />

CFile fileBitmap(...);
BITMAPFILEHEADER rBitmapFileHeader;
BITMAPINFOHEADER rBitmapInfoHeader;
 
fileBitmap.Read(&rBitmapFileHeader, sizeof(BITMAPFILEHEADER));
fileBitmap.Read(&rBitmapInfoHeader, sizeof(BITMAPINFOHEADER));
 
// seek to the beginning of the bitmap bits
fileBitmap.Seek(rBitmapFileHeader.bfOffBits, CFile::begin);
 
unsigned char *m_pdata = new unsigned char[rBitmapInfoHeader.biWidth * rBitmapInfoHeader.biHeight];
 
fileBitmap.Read(m_pData, rBitmapInfoHeader.biWidth * rBitmapInfoHeader.biHeight);

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

// accessing data directly, provide bmBits actualy is
// pointing to the image data and not NULL.
unsigned char* pData = (unsigned char*)bmBits;
// manimpulate bits
....

// Making a copy of the image data
// The following is overkill
if( bm.bmBits )
{
    DWORD dwImageSize = bm.bmHeight * bmByteWidth; // not bmWidth
    unsigned char* pData = new unsigned char[dwImageSize];
    if( pData )
    {
        memcpy(pData,bm.bmBits,dwImageSize);
        // manipulate pData contents
        .....
        memcpy(bm.bmBits,pData,dwImageSize);
        delete [] pData;
    }
}