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POpanel repaints background image (using EVT_ERASE_BACKGROUND)
 

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  1. POpanel repaints background image (using EVT_ERASE_BACKGROUND)
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    <p>I have a frame with a few different panels and every panel shall get the same background image. So I found this example: <a href="http://www.blog.pythonlibrary.org/2010/03/18/wxpython-putting-a-background-image-on-a-panel/" rel="nofollow">http://www.blog.pythonlibrary.org/2010/03/18/wxpython-putting-a-background-image-on-a-panel/</a> I copied the "def OnEraseBackground(self, evt)" from this example and Bind it to EVT_ERASE_BACKGROUND. Result: The panel repaints the background image with the colour grey. My background image has the same width, but it is higher than the panel. So here you can see that the panel repaints the image: <a href="http://s14.directupload.net/file/d/3030/ej22mwbx_jpg.htm" rel="nofollow">http://s14.directupload.net/file/d/3030/ej22mwbx_jpg.htm</a> (the green bottom part is part of my image; the grey rectangle is my panel). I also added these lines to my __init__:</p> <pre><code>import wx class MyForm(wx.Frame): def __init__(self): wx.Frame.__init__(self, None, wx.ID_ANY, "Click Kick",size=(1124,750),pos=((wx.DisplaySize()[0]-1024)/2,10)) self.startpanel = wx.Panel(self,size=(1024,600)) self.hideallpanels() self.startpanel.Show() #... wx.StaticText(self.startpanel,-1,'Testtext',pos=(120,220)) self.SetBackgroundStyle(wx.BG_STYLE_CUSTOM) self.sizer = wx.BoxSizer(wx.VERTICAL) #self.sizer.Add(self.panelnewgame, 1, wx.EXPAND) #self.sizer.Add(self.panelloadgame, 1, wx.EXPAND) self.SetSizer(self.sizer) #hSizer = wx.BoxSizer(wx.HORIZONTAL) #hSizer.Add((1,1), 1, wx.EXPAND) #hSizer.Add(self.sizer, 0, wx.TOP, 100) #hSizer.Add((1,1), 0, wx.ALL, 75) #self.SetSizer(hSizer) self.Bind(wx.EVT_ERASE_BACKGROUND, self.OnEraseBackground) def hideallpanels(self): self.startpanel.Hide() #... def OnEraseBackground(self, evt): dc = evt.GetDC() if not dc: dc = wx.ClientDC(self) rect = self.GetUpdateRegion().GetBox() dc.SetClippingRect(rect) dc.Clear() bmp = wx.Bitmap("background.bmp") dc.DrawBitmap(bmp, 0, 0) if __name__ == "__main__": app = wx.App(False) frame = MyForm() frame.Show() app.MainLoop() </code></pre> <p>But with these lines I can't start my program: No error message, but it just don't start.</p> <p>Edit: There is no need to resize the background image (or something else) when the window gets resized. the window is static and shouldn't get resized.</p> <p>Edit2: I updated the code example above with all code that could be relevant.</p> <p>Edit3: Sorry, but now it runs. You just need a background image called "background.bmp" which should be bigger than the wx.Panel (or you lower the size of the wx.Panel) -> Just to see, that the panel repaints the image.</p>
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    1. COI think you'll need to provide a complete small, runnable example. Did you set the panel's background style to wx.BG_STYLE_CUSTOM? And did you bind the EVT_ERASE_BACKGROUND to the panel?
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      1. POpanel repaints background image (using EVT_ERASE_BACKGROUND)
      1. USMike Driscoll
    2. COI updated my code example.
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      1. POpanel repaints background image (using EVT_ERASE_BACKGROUND)
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    3. COThat is far from runnable
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      1. POpanel repaints background image (using EVT_ERASE_BACKGROUND)
      1. USMike Driscoll
 

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