回答編集履歴
1
dispose
test
CHANGED
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@@ -6,7 +6,7 @@
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6
6
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7
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```ここに言語を入力
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8
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9
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-
private Bitmap _canvas;
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9
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private Bitmap _canvas = null;
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12
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@@ -36,6 +36,16 @@
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36
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39
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+
private void Form1_FormClosed(object sender, FormClosedEventArgs e)
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40
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{
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if (_canvas != null) _canvas.Dispose();
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}
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private void Form1_Paint(object sender, PaintEventArgs e)
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{
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