使Photograph 支持IDisposable接口 (windows forms 编程实战 学习笔记)
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public class Photograph:IDisposable
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{
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public void ReleaseImage()
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{
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If(_bitmap!=null)
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{
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_bitmap.Dispose();
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_bitmap=null;
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}
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}
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public void Dispose()
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{
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ReleaseImage();
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}
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}
public class Photograph:IDisposable2
{3

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public void ReleaseImage()6
{7
If(_bitmap!=null)8
{9
_bitmap.Dispose();10
_bitmap=null;11
}12
}13
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public void Dispose()15
{16
ReleaseImage();17
}18
}

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