Re: [boost] GIL - Need to load from HBITMAP

From: Christian Henning (chhenning_at_[hidden])
Date: 2006-10-13 12:31:33

This might be a little off-topic.

I'm sure there are several ways. My way is to obtain the pointer to
the pixels, like this:

      DIBSECTION sDibSection;

      int nBytes = ::GetObject( hBitmap
                              , sizeof( DIBSECTION )
                              , &sDibSection          );

The DIBSECTION structure will host a BITMAPINFOHEADER and the mentioned pointer.
Then you can use memcpy to fill up a GIL image. For indexed images you
need to obtain the color table, also. Let me know if you are
interested in the GDI code.

Another way might be using GDI+ . This lib is easier to use than good ol' GDI.

If you have problems contact me. I can help you. I have been wading
through all the pains the GDI offers.

Christian

On 10/13/06, Gordon Smith <schmoo2k_at_[hidden]> wrote:
> (This is using windows OS)
>
> Is there anyway to simply initialize an image (any_image?) )from a memory
> bitmap?  I would like to plug it into an existing app to play with it and
> this would really make it simple...
>
> Gordon.
>
>
>
>
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