Graeme Geldenhuys wrote:
Hi,
On 9/2/06, Giuliano Colla <[EMAIL PROTECTED]> wrote:
The TBitmap.Draw method bluntly ignores the Canvas CopyMode, and forces
a fixed SRCCOPY.
I noticed because I have a nice TGauge component (derived from old
Delphi examples) which uses cmBlackness and cmSrcInvert to provide a
transparency effect, and which was getting painted just as a black box.
I have noticed the same thing, and also derived it from the Kylix code
which I bought. Due to licensing, I scrapped the code, and rewrote
the whole thing, without looking at Kylix code again, so licensing
shouldn't be a problem with mine.
I can share/contribute the code if anybody is interrested. It
currently does a Horizontal progress (with percentage shown as text)
and a Dial (speedo meter) gauge.
In any case we can put it in the Lazarus Code and Components Repository:
http://wiki.lazarus.freepascal.org/Components_and_Code_examples
The procedure is simple:
* Create a wiki page for your component, more or less like
http://wiki.lazarus.freepascal.org/TAChart
* Add a link to it on
http://wiki.lazarus.freepascal.org/Components_and_Code_examples
* Send me a source.zip, so I can upload it to sourceforge.
Vincent
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