回答編集履歴
1
DllImportAttribute → DllImport
test
CHANGED
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@@ -7,10 +7,10 @@
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7
7
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[DllImport("gdi32.dll")]
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8
8
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private static extern IntPtr SelectPalette(IntPtr hdc, IntPtr hpal, bool bForceBackground);
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9
9
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10
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-
[DllImport
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10
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+
[DllImport("gdi32.dll")]
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11
11
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private static extern int RealizePalette(IntPtr hdc);
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12
12
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13
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-
using (var g = Graphics.FromImage(bitmap
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13
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+
using (var g = Graphics.FromImage(bitmap)) {
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14
14
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IntPtr hdc = g.GetHdc();
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15
15
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IntPtr oldPal = SelectPalette(hdc, Graphics.GetHalftonePalette(), true);
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16
16
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RealizePalette(hdc);
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