[lazarus] GTK team: please specify!
M.Nelissen at student.tue.nl
Tue Nov 4 16:04:30 EST 2003
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?
More information about the Lazarus