On Fri, 10 Mar 2006 14:15:44 +0100
Tomas Gregorovic <[EMAIL PROTECTED]> wrote:
> Hi,
> finally I have finished my long battle around bitmap masks.
>
> I have implemented method CreateBitmapMask, which creates mask according
> to transparent color. The white pixels stand for opacity and black for
> transperency (I have found out that this is in contrary to Delphi). I
> hope this routine will function under all supported OSes - I have tested
> it on win only.
>
> Next, I had to change btimap and image transparent* properties to behave
> like Delphi equivalents.
>
> The difficult problem was how to keep transparency built in source of
> bitmaps such as *.xpm. This I have solved by creating new seperate mask
> accessible throught AlphaMaskHandle, which stores alpha channel data
> that were previously stored in MaskHandle object.
>
> I have attached small test project, which nicely illustrates right mask
> functioning.
You added an AlphaMaskHandle, but I don't see when we need both MaskHandle
and AlphaMaskHandle.
Why not use the MaskHandle for the Mask?
And btw: Not all widgetsets use separate Handle and MaskHandle.
Mattias
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