Drawing on a transparent Fullscreen Dialog

[Sickboy]

I have created a wxDialog and use SetFullscreen(true) and SetTransparent(0), to make a transparent fullscreen window.
Now i try to draw a rectangle on it.

<code>
void myClass::OnPaint(wxPaintEvent &event)
{
wxPaintDC dc(this);
wxBrush brush(255,0,0),
dc.SetBrush(brush);
dc.DrawRectangle(0,0,400,400);
}
</code>

But i can't see the rectangle. If i delete SetTransparent(0) the rectangle will be drawn correct but the background isn't transparent :-/

Any idea how to solve this problem ?

[JimFairway]

If you're using Windows, you can catch the wxEraseEvent with an empty function( thanks to lvdlinden teaching me that one).

Code: Select all

void OnErase( wxEraseEvent &e )
{
    // do not clear background
}

Jim