Drawing with wxClientDC

[Chris Elliott]

On 14 May 2008, at 21:03, Alejandro wrote:

> Hi,
>   I'm drawing a line with a wxClientDC on a wxUpdateUIEvent,

so wxUpdateUIEvent is intended to gibe you the opportunity to  change  
the menus/toolbars, not to draw on the window...


> but the line flickers. This is the code of my wxUpdateUIEvent:
>
>       wxClientDC *pclientdc = new wxClientDC(mywindow);
>       pclientdc->DrawLine(0, coord_y, mywindow->GetSize().GetX(),  
> coord_y);
>       delete pclientdc;
>       plist->Refresh();

Here you have just drawn on a window and then called Refresh to redraw  
the window, as will normally happen in your OnPaint handler - see http://biolpc22.york.ac.uk/wx/docs/html/wx/wx_wxpaintevent.html#wxpaintevent

chris