Date: Thu, 5 Feb 2004 00:56:31 +0700
From: Van Duc Uy <uyvd@sunyard.net.tw>
Subject: Sorry:Re: [nanogui] Display Image with Microwindows

Hello,
Attached is diff files,
i will add some more function about display "raw" image 
(captured from webcam). 
if everything well, i will give  you the patch too.

Regards,
Michael

On Tuesday 03 February 2004 12:34 pm, you wrote:
> : Thank you very much,
> : i can do it now
>
> Cool - please send me any source code changes so I can
> add them to the core Microwindows code.
>
> Regards,
>
> Greg
>
> : On Thursday 05 February 2004 08:25 am, Greg Haerr wrote:
> : > : I want to write a small program by microwindows (WIN32API) to display
> : > : an
> : >
> : > image
> : >
> : > : from file (BMP,PNG,JPEG).
> : >
> : > The convbmp program converts a .bmp file into a C structure
> : > (PMWIMAGEHDR) that is then used as a parameter to the
> : > only win32 API for images (which is BTW non-standard):
> : > DrawDIB().
> : >
> : > The DRAWDIB function takes the MWIMAGEHDR struct
> : > and draws an image.  This was done some time ago since
> : > I didn't have time to implement the whole win32 image
> : > and bitmap functionality.
> : >
> : > If you take some of the file converter code in the Microwindows
> : > engine level, engine/devimage.c, you will see that these routines
> : > also decode both file and buffer streams into MWIMAGEHDR
> : > structs.  These routines start with LoadXXX, where XXX is
> : > GIF, PNG, JPEG, BMP, etc.
> : >
> : > These above LoadXXX routines are currently static to
> : > devimage.c, and are used by an engine routine, GdDrawImage(),
> : > which draws an image.  What you need to do is slightly hack
> : > devimage.c to implement a GdLoadImage routine, which
> : > just calls LoadXXX for the image and produces a returned
> : > PMWIMAGEHDR structure pointer, which you then
> : > can use the win32 API DrawDIB routine to draw.
> : >
> : > Regards,
> : >
> : > Greg
> : >
> : >
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attachment; filename="devimage.c.diff"
attachment; filename="device.h.diff"