42 lines
1.3 KiB
Python
42 lines
1.3 KiB
Python
# This is a "demo" of win32file - it used to be more a test case than a
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# demo, so has been moved to the test directory.
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import os
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# Please contribute your favourite simple little demo.
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import win32api
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import win32con
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import win32file
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# A very simple demo - note that this does no more than you can do with
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# builtin Python file objects, so for something as simple as this, you
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# generally *should* use builtin Python objects. Only use win32file etc
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# when you need win32 specific features not available in Python.
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def SimpleFileDemo():
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testName = os.path.join(win32api.GetTempPath(), "win32file_demo_test_file")
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if os.path.exists(testName):
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os.unlink(testName)
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# Open the file for writing.
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handle = win32file.CreateFile(
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testName, win32file.GENERIC_WRITE, 0, None, win32con.CREATE_NEW, 0, None
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)
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test_data = "Hello\0there".encode("ascii")
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win32file.WriteFile(handle, test_data)
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handle.Close()
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# Open it for reading.
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handle = win32file.CreateFile(
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testName, win32file.GENERIC_READ, 0, None, win32con.OPEN_EXISTING, 0, None
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)
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rc, data = win32file.ReadFile(handle, 1024)
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handle.Close()
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if data == test_data:
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print("Successfully wrote and read a file")
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else:
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raise Exception("Got different data back???")
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os.unlink(testName)
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if __name__ == "__main__":
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SimpleFileDemo()
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