📄 img2dib.shtml
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<HTML><!-- Header information--><HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <!-- add your name in the CONTENT field below --> <META NAME="Author" CONTENT="Ciotescu Raul"> <TITLE><!-- Section Title -->Bitmap & Palette - <!-- Article Title -->Image to DIB</TITLE></HEAD><!-- Set background properties --><body background="/fancyhome/back.gif" bgcolor="#FFFFFF"><!-- A word from our sponsors... --><table WIDTH="100%"><tr WIDTH="100%"><td align=center><!--#exec cgi="/cgi/ads.cgi"--><td></tr></table><CENTER><H3><FONT COLOR="#AOAO99"><!-- Article Title -->ImageList to DIB</FONT></H3></CENTER><HR><!-- Author and contact details -->This article was contributed by <!-- Author Email --><A HREF="mailto:Michael.5.0.6.3.Wild@dv-ed-sd.zug.ch.siemet.com"><!-- Author Name -->Mike Wild</A>.<!-- Text / source code --><p><!-- The 'p' starts a paragraph of normal text -->In my PrintTree sample I wanted to print the tree in color. This was easy for text, but not for the icons. I tried a lot to convert the imagelist to DIB, but what I really needed was a method, which gives back the DIB of one icon, not of the whole Imagelist. And here is the used method:<!-- start a block of source code --><PRE><TT><FONT COLOR="#990000">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 & TVIS_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(LOGPALETTE) + ( sizeof(PALETTEENTRY) * 256 ); LOGPALETTE* pLP = (LOGPALETTE*)new BYTE[nSize]; pLP->palVersion = 0x300; pLP->palNumEntries = (unsigned short)GetSystemPaletteEntries( dc, 0, 255, pLP->palPalEntry ); // Create the palette pal.CreatePalette( pLP ); // Free memory delete[] pLP; } memDC.SelectObject( pOldBitmap ); // Convert the bitmap to a DIB return DDBToDIB( bitmap, BI_RGB, &pal );}<!-- end the block of source code --></FONT></TT></PRE><!-- create more blocks of source code as needed --><p>The DDBToDIB-Method is the one already published under "Converting DDB to DIB".<p>Bugs and Improvements:Please report all bugs and improvements to me, thanks and enjoy it.<!-- Posted / Update date mm/dd/yy - add to the list --><p>Date Posted: 05/05/98<P><HR><!-- Codeguru contact details --><TABLE BORDER=0 WIDTH="100%"><TR><TD WIDTH="33%"><FONT SIZE=-1><A HREF="http://www.codeguru.com">Goto HomePage</A></FONT></TD><TD WIDTH="33%"><CENTER><FONT SIZE=-2>© 1998 Zafir Anjum</FONT> </CENTER></TD><TD WIDTH="34%"><DIV ALIGN=right><FONT SIZE=-1>Contact me: <A HREF="mailto:zafir@home.com">zafir@home.com</A> </FONT></DIV></TD></TR></TABLE><!-- Counter --></BODY></HTML>⌨️ 快捷键说明
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