Some little additions to how wxBufferedDC is wrapped.

SHow how to use the wxBufferedDC in the demo.
Other demo tweaks


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@15049 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/src/msw/gdi.py

@@ -857,18 +857,23 @@ class wxBufferedDCPtr(wxMemoryDCPtr):
     def __init__(self,this):
         self.this = this
         self.thisown = 0
+    def UnMask(self, *_args, **_kwargs):
+        val = apply(gdic.wxBufferedDC_UnMask,(self,) + _args, _kwargs)
+        return val
     def __repr__(self):
         return "<C wxBufferedDC instance at %s>" % (self.this,)
 class wxBufferedDC(wxBufferedDCPtr):
     def __init__(self,*_args,**_kwargs):
         self.this = apply(gdic.new_wxBufferedDC,_args,_kwargs)
         self.thisown = 1
+        self._dc = _args[0] # save a ref so it won't be deleted before self
 
 
 
 def wxBufferedDCInternalBuffer(*_args,**_kwargs):
     val = wxBufferedDCPtr(apply(gdic.new_wxBufferedDCInternalBuffer,_args,_kwargs))
     val.thisown = 1
+    val._dc = _args[0] # save a ref so it won't be deleted before self
     return val