On Mon, 6 Mar 2006 06:24:51 +0100
"Christian U." <[EMAIL PROTECTED]> wrote:
> > On 3/5/06, Christian U. <[EMAIL PROTECTED]> wrote:
> >> 1. a real TIcon will never be implemented becouse no os than win32
> >> supports
> >> icons
> >
> > I think this isn´t true. Qt supports icons, there is even a QIcon Qt
> > object, and Mac OS loves icons.
>
> what i mean is, that the native icon format isnt the same everywhere and
> lazarus needs an tbitmap implementation
> i think a NativeHandle function ir somehing like this coud help to ship
> around this issue...
>
> but i think its mutch more importend to discuss tbitmap: tbitmap has only
> 1 bit transparency and leaks some other functions of an "modern image
> format" maybe lazarus schould internaly use another format ?!
The LCL TBitmap nowhere defines a mask to be 1bit per pixel.
It even supports transparency without a separate mask handle (used for
instance by the gtk intf).
It uses TLazIntfImage/TRawImage for conversion, and this supports up to 16
bits alpha per pixel.
Only the interface has to support bitmap handles with alpha.
> > Thanks a lot for the patch. My position is that this should go to
> > TIcon, thought the final word isn´t mine.
>
> the patch is only an preversion to make it generally working, maybe
> someone has an idea to get transparancy on this function
> i will try to make this with tlazintfimage today evening maybe this works
> better ...
Mattias
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