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我在阅读“wxpython in action”,并在书中发现了paintwindow演示。它使用cpickle(*。paint)保存其数据。我想知道如何将数据保存在窗口中作为jpg文件,因此我可以使用标准图像查看器查看它。将窗口保存为图像文件
另存为功能在书中:
def OnSaveAs(self, event):
file_wildcard = "Paint files(*.paint)|*.paint|All files(*.*)|*.*"
dlg = wx.FileDialog(self, "save paint as ...", os.getcwd(), style=wx.SAVE|wx.OVERWRITE_PROMPT, wildcard=file_wildcard)
if dlg.ShowModal() == wx.ID_OK:
filename = dlg.GetPath()
if not os.path.splitext(filename[1]):
filename += ".paint"
self.filename = filename
self.SaveFile()
self.SetTitle(self.Title + " -- " + self.filename)
dlg.Destroy()
def SaveFile(self):
if self.filename:
data = self.paint.GetLinesData()
f = open(self.filename, "w")
cPickle.dump(data, f)
f.close