32bpp bitmaps

[Kevin Koltzau]

I am loading a 32bpp bitmap from resources of a dll, but under wine its being reported as 24 bit..for example

void main() {
    HMODULE hTheme = LoadLibrary("C:\Windows\Resources\Themes\Luna\Luna.msstyles");
    HBITMAP hBmp = LoadBitmap(hTheme, "BLUE_BUTTON_BMP");
    BITMAP bmp;
    GetObject(hBmp, sizeof(bmp), &bmp);
    printf("bpp=%d\n", bmp.bmBitsPizel);
}

under Windows prints 32, under Wine prints 24
I've tried to find the cause of this, but much of this is deep in x11drv which I am not familliar with at all..
Is wine stripping the alpha channel for some reason? or is this a bug?
(I've only run this example on that one file, its the native Luna.msstyles theme from an XP system)

[Kevin Koltzau]

On Wednesday 04 February 2004 10:32 pm, Kevin Koltzau wrote:
> I am loading a 32bpp bitmap from resources of a dll, but under wine its
> being reported as 24 bit..for example

I think I actually found the answer to my own question..I'm always getting the bpp of my X server..
Is this one of those things that would probably be fixed with a DIB engine not associated with X?

[Ove Kaaven]

tor, 05.02.2004 kl. 05.29 skrev Kevin Koltzau:
> On Wednesday 04 February 2004 10:32 pm, Kevin Koltzau wrote:
> > I am loading a 32bpp bitmap from resources of a dll, but under wine its
> > being reported as 24 bit..for example
>
> I think I actually found the answer to my own question..I'm always getting the bpp of my X server..

The way I understand the API, you could also get the current screen
depth even under real Windows (i.e. 16 if you run Windows in HiColor
mode instead of TrueColor mode), at least early versions of it. If you
want to preserve the bpp, you must use a DIB section, not a plain
bitmap.

[Kevin Koltzau]

On Thursday 05 February 2004 09:59 am, Ove Kaaven wrote:
> The way I understand the API, you could also get the current screen
> depth even under real Windows (i.e. 16 if you run Windows in HiColor
> mode instead of TrueColor mode), at least early versions of it. If you
> want to preserve the bpp, you must use a DIB section, not a plain
> bitmap.

Aah, that seems to have done the trick
And after a couple tests, that is how it works even on newer versions
of windows..I don't know how I missed that
Thank you