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[优化]-截图功能图片精度调整 #67

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Merged
merged 1 commit into from
Oct 7, 2023
+12 −4
Merged

[优化]-截图功能图片精度调整 #67

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16 changes: 12 additions & 4 deletions src/WPFDevelopers.Shared/Controls/ScreenCut/ScreenCut.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -448,11 +448,19 @@ private CroppedBitmap CutBitmap()
_rectangleTop.Visibility = Visibility.Collapsed;
_rectangleRight.Visibility = Visibility.Collapsed;
_rectangleBottom.Visibility = Visibility.Collapsed;
var renderTargetBitmap = new RenderTargetBitmap((int)_canvas.Width,
(int)_canvas.Height, 96d, 96d, PixelFormats.Default);
// 屏幕等比截图需要考虑缩放率进行等比放大canvas
var renderTargetBitmap = new RenderTargetBitmap((int)(_canvas.Width * screenDPI.scaleX),
(int)(_canvas.Height * screenDPI.scaleY), screenDPI.dpiX, screenDPI.dpiY, PixelFormats.Default);
renderTargetBitmap.Render(_canvas);
return new CroppedBitmap(renderTargetBitmap,
new Int32Rect((int)rect.X, (int)rect.Y, (int)rect.Width, (int)rect.Height));
// 屏幕等比截图需要考虑缩放率进行等比放大截图区域
var realrect = new Int32Rect(
(int)(rect.X * screenDPI.scaleX),
(int)(rect.Y * screenDPI.scaleY),
(int)(rect.Width * screenDPI.scaleX),
(int)(rect.Height * screenDPI.scaleY));
//return new CroppedBitmap(renderTargetBitmap,
// new Int32Rect((int)rect.X, (int)rect.Y, (int)rect.Width, (int)rect.Height));
return new CroppedBitmap(renderTargetBitmap, realrect);
}

private void ButtonCancel_Click(object sender, RoutedEventArgs e)
Expand Down