wxWidgets Discussion Forum

thank you very much!

I all tired...
but the two Refresh are both nessesary.
if no Refresh for the frame, the linked lines will not refresh...
if no Refresh for the panel, the panel's background will not right......

I all tired...

and the Render func is like what we disscussed before, for big panel and small panel, first call parent->Render(), then draw its own bitmap and others. the frame is the big panel's parent, and the big panel is the small panel's parent. for the frame, in its Render(), just do its own drawings. and al...

I don't have many ideas about this anyway. Could you show the code where you move the panel? ok void MyPanel::MouseMove(wxMouseEvent& event) { if(IsDragging) { //get the position ... this->Move(pos); MyFrame* frame = wxDynamicCast(GetParent(), MyFrame); if(frame != NULL) { frame->Refresh(); } Refre...

win 8
well, I compiled wxWidgets using DLL_DEBUG in vs2013, i guess it is defaut 64bit, so can't run on winXP...

i tried, but upload was failed..it's 27M.

You want MyPanel to be an abstract class? Yes, by adding a pure virtual method. is the wxPanel not abstract, but its child abstrct and child's child not abstract OK? 2. & 3. so I should call the virtual func and then event.Skip() in the abstract class and then overrider the virtual func in its chil...

ok, I will make a video. May I send it to ur email ? I found upload file here is very slow...
and I found when move the panel, if I call the panel's Update instead of Refresh(), it's better, but the semi-transparent backgound is wrong cause of no refresh...

1. can I inhrite from wxPanel a MyPanel that is an abstract class? 2. in MyPanel i have a virtual func PaintEvent() for EVT_PAINT, and in MyPnael's child MyChildPanel, I override PaintEvent()...both in MyPanel and MyChildPanel,i declare BEGIN_EVENT_TABLE, EVT_PAINT, is it OK? Will the MyChildPanel o...

I tried this method, for both the big panel and small panel. It's better and faster rendering when fast move the panel, but still have that "dragging" appearance when move the big panel... and I am really comfused that why the 1st big panel I add on the wxScrollWindow is always perfect, but when I a...

And for the wxScrollWindow, wxAutoBufferedPaintDC, then PrepareDC, then Render(): dc.Clear(), DrawLine. One thing you can try to improve performance is to use wxBufferedPaintDC with a static bitmap as buffer. That way it doesn't have to create a new bitmap each time. But then you have to make sure ...

I saw on the menu sample, there is an altertive that use EVT_CONTEXT_MENU...is it better to use this? I now use EVT_RIGHT_UP.

Hard to tell from a distance. Maybe the code in the paint event handlers is just too slow. Try commenting out parts of it, even if it leaves garbage on the screen. Just to see if that's the problem. I located where the problem is, in the small panels' Render(), I first call the parent(big panel)'s ...

is it http://wiki.pypt.lt/wxios?
how does it work now? very well?