In my PrintTree example, I want to print colored tree control. It is easy for text, but the icon is
Not simple. I tried to convert the image list into DIB, but I really need a method to take out one
Icon's DIB instead of the entire image list. Below is the specific method I use:
Handle CadvancedTreeCtrl :: ImageTodib (Cimagelist * Pimagelist, Int iimagenumber, CWND * PWND, BOOL BOVERLAY, HTREEITEM ACTUALITEM)
{
// Local Variables
CBitmap Bitmap;
CWindowDC DC (PWND);
CDC MEMDC;
CRECT RECT;
CPALETTE PAL;
ImageInfo imageinfo;
IF (false == pimagelist-> getImageInfo (iimagenumber, & imageinfo))
{
// Getting of the imageinfos failed
Return NULL;
}
// Create Compatible Stuff and SELECT Bitmap
IF (false == memdc.createcompatibledc (& dc))
{
// Create Failed
Return NULL;
}
IF (false == bitmap.createcompatiblebitmap (& DC,
ImageInfo.rcimage.bottom-ImageInfo.rcimage.top,
ImageInfo.rcimage.right-imageinfo.rcimage.Left)))
{
// Create Failed
Return NULL;
}
CBitMap * PoldbitMap = MEMDC.SELECTOBJECT (& Bitmap);
IF (NULL == Poldbitmap)
{
// SELECT FAILED
Return NULL;
}
// Local Variables for Draw
CPoint Point (0, 0);
Uint nStyle = Ild_normal;
// is there an overlay
IF (True == Boverlay)
{
TV_Item TV_Item;
// set up the item-struct
TV_Item.hitem = actualItem;
// Get the full item-struct
GetItem (& TV_Item);
// set the Wanted Style
NStyle = ILD_TRANSPARENT | (TV_Item.State & TV_overlaymask);
}
// Draw Image to the Compatible DC
IF (false == pimagelist-> Draw (& MEMDC, IIMAGENUMBER, POINT, NSTYLE))
{
// Drawing of the image failed
Return NULL;
}
// Create Logical Palette IF Device Support a Palette
IF (DC.GETDEVICECAPS (RasterCaps) & rc_palette
{
UINT nsize = sizeof (slogpalette) * 256); LogPalette * PLP = (logpalette *) New byte [nsize];
PLP-> paversion = 0x300;
PLP-> PALNUMENTRIES = (Unsigned Short) GetsystemPaletteentries (DC, 0, 255,
PLP-> PALPALENTRY
// Create the Palette
PAL.CREATEPALETTTE (PLP);
// free memory
DELETE [] PLP;
}
MEMDC.SELECTOBJECT (POLDBITMAP);
// convert the bitmap to a dib
Return DDBTODIB (Bitmap, Bi_RGB, & PAL);
}
