CListCtrl and Image List - Help
I have a ClistCtrl in a Dialog.
In the CListCtrl, I am displaying the File name and Path, etc. I need to display the System Icon for each file.
I know that I need to call
SHFILEINFO sfi;
HIMAGELIST himl = (HIMAGELIST)SHGetFileInfo(
_T("C:\\"),
0,
&sfi,
sizeof(SHFILEINFO),
SHGFI_SMALLICON | SHGFI_SYSICONINDEX
);
to get the handle to the system Icons. I should then create a Image List.
This is my question; How should I make the Image List and the How can I use it.
Any help, sample code, etc will be help ful.
Thanks
Mike
Re: CListCtrl and Image List - Help
Hi ,
This is what we R doing in our implimentation..
Call the AddImageToList function by passing the file name (we R using .bmp files)
BOOL CFUIWallSymbols::AddImageToList(CString& str)
{
CBitmap img;
LoadBMPImage( str, img, NULL );
m_pImageList->Add(&img, (CBitmap*)NULL);//m_pImageList is the object of CImageList
return TRUE;
}
// LoadBMPImage - Loads a BMP file and creates a bitmap GDI object
// also creates logical palette for it.
// Returns - TRUE for success
// sBMPFile - Full path of the BMP file
// bitmap - The bitmap object to initialize
// pPal - Will hold the logical palette. Can be NULL
BOOL CFUIWallSymbols::LoadBMPImage(LPCTSTR sBMPFile, CBitmap &bitmap, CPalette *pPal)
{
CFile file;
if( !file.Open( sBMPFile, CFile::modeRead) )
return FALSE;
BITMAPFILEHEADER bmfHeader;
// Read file header
if (file.Read((LPSTR)&bmfHeader, sizeof(bmfHeader)) != sizeof(bmfHeader))
return FALSE;
// File type should be 'BM'
if (bmfHeader.bfType != ((WORD) ('M' << 8) | 'B'))
return FALSE;
// Get length of the remainder of the file and allocate memory
DWORD nPackedDIBLen = file.GetLength() - sizeof(BITMAPFILEHEADER);
HGLOBAL hDIB = ::GlobalAlloc(GMEM_FIXED, nPackedDIBLen);
if (hDIB == 0)
return FALSE;
// Read the remainder of the bitmap file.
if (file.ReadHuge((LPSTR)hDIB, nPackedDIBLen) != nPackedDIBLen )
{
::GlobalFree(hDIB);
return FALSE;
}
BITMAPINFOHEADER &bmiHeader = *(LPBITMAPINFOHEADER)hDIB ;
BITMAPINFO &bmInfo = *(LPBITMAPINFO)hDIB ;
// If bmiHeader.biClrUsed is zero we have to infer the number
// of colors from the number of bits used to specify it.
int nColors = bmiHeader.biClrUsed ? bmiHeader.biClrUsed :
1 << bmiHeader.biBitCount;
LPVOID lpDIBBits;
if( bmInfo.bmiHeader.biBitCount > 8 )
lpDIBBits = (LPVOID)((LPDWORD)(bmInfo.bmiColors + bmInfo.bmiHeader.biClrUsed) +
((bmInfo.bmiHeader.biCompression == BI_BITFIELDS) ? 3 : 0));
else
lpDIBBits = (LPVOID)(bmInfo.bmiColors + nColors);
// Create the logical palette
if( pPal != NULL )
{
// Create the palette
if( nColors <= 256 )
{
UINT nSize = sizeof(LOGPALETTE) + (sizeof(PALETTEENTRY) * nColors);
LOGPALETTE *pLP = (LOGPALETTE *) new BYTE[nSize];
pLP->palVersion = 0x300;
pLP->palNumEntries = nColors;
for( int i=0; i < nColors; i++)
{
pLP->palPalEntry[i].peRed = bmInfo.bmiColors[i].rgbRed;
pLP->palPalEntry[i].peGreen = bmInfo.bmiColors[i].rgbGreen;
pLP->palPalEntry[i].peBlue = bmInfo.bmiColors[i].rgbBlue;
pLP->palPalEntry[i].peFlags = 0;
}
pPal->CreatePalette( pLP );
delete[] pLP;
}
}
CClientDC dc(NULL);
CPalette* pOldPalette = NULL;
if( pPal )
{
pOldPalette = dc.SelectPalette( pPal, FALSE );
dc.RealizePalette();
}
HBITMAP hBmp = CreateDIBitmap( dc.m_hDC, // handle to device context
&bmiHeader, // pointer to bitmap size and format data
CBM_INIT, // initialization flag
lpDIBBits, // pointer to initialization data
&bmInfo, // pointer to bitmap color-format data
DIB_RGB_COLORS); // color-data usage
bitmap.Attach( hBmp );
if( pOldPalette )
dc.SelectPalette( pOldPalette, FALSE );
::GlobalFree(hDIB);
return TRUE;
}
I think this will solve U R problem