Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!hplabs!hp-pcd!hpcvlx!bturner
From: bturner@hpcvlx.cv.hp.com (Bill Turner)
Newsgroups: comp.windows.ms
Subject: Re: Bitmaps under Windows
Message-ID: <106580083@hpcvlx.cv.hp.com>
Date: 28 Feb 90 19:35:01 GMT
References: <142@btree.uucp>
Organization: Hewlett-Packard Co., Corvallis, OR, USA
Lines: 16

> We are in the process of porting some Macintosh code to Windows and are
> having some trouble with bitmaps.  On the Macintosh, I an able to setup
> a bitmap that points to a particular address in memory and then BLT to
> or from that bitmap.  In the application we are writing, a buffer
> containing bitmap data, and the organization of that data are being
> passed to a routine that wants to BLT that data either to another
> location in memory or to a window.  Is it possible to create a device
> context for the source bitmap and then associate the buffer memory with
> that context without having Windows allocate the bits when the device
> context is created?

Once the memory DC has been created, you can use SelectObject(hMemDC, hBitmap)
to change the bitmap used, just as you would with any other drawing object.

--Bill Turner (bturner@hp-pcd.hp.com)
HP Interface Technology Operation