[lazarus] GTK team: please specify!
nc-gaertnma at netcologne.de
Tue Nov 4 16:16:34 EST 2003
On Tue, 04 Nov 2003 22:12:26 +0100
Micha Nelissen <M.Nelissen at student.tue.nl> wrote:
> Mattias Gaertner wrote:
> > On Tue, 04 Nov 2003 14:24:31 +0100
> > Micha Nelissen <M.Nelissen at student.tue.nl> wrote:
> >>I have implemented GetDesignerDC for win32. Screen relative positions.
> >>Works reasonably well. I can see the grid alignment lines now :).
> > Grid alignment lines? :)
> > I guess, you mean the blue and green guide lines.
> Yes, those :).
> >>things drawn onto controls are left behind. I assume nothing is drawn
> >>into controls DC's anymore, only to the designer DC?
> > Markers and grids are painted per control paint messages.
> > The invalidate rectangles are not big enough. Not a big thing. This is a
> > known issue. Although with the new technique it appears more often.
> A lot more :). For example: placing a TGroupBox into the form and then
> placing a button in that groupbox, selecting it. Then move the button: a
> trail of complete square boxes of markers is left behind. Not a 1-pixel
> line, but the full 10 by 10 pixel box or so. All blue and green lines
> are left behind on controls, so moving them around a little bit and they
> all have blue and green borders :). Do you know the cause, solution?
Sounds as if the InvalidateRect does not work properly under win32. Or too
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