我创建了一个测试应用程序来生成Code 39条形码。问题是当我在屏幕上显示条形码时,它要么模糊,要么撕裂。如果我使用除NearestNeighbor之外的任何
我已经尝试过使用
撕裂/模糊/正确
WPF示例代码:
BitmapScalingMode
,我会得到模糊的条形码。当我使用NearestNeighbor
时,我会得到如下所示的对角线斜杠。当我调整窗口大小时,该对角线仅在我重新调整窗口大小时出现。(如果我停在正确的位置,它会一直存在。) 图像本身不会改变大小,而是随着我调整窗口大小而在屏幕上移动。我已经尝试过使用
RenderOptions.EdgeMode="Aliased"
,但似乎没有任何效果...撕裂/模糊/正确
WPF示例代码:
<Border BorderBrush="Black" BorderThickness="1" HorizontalAlignment="Center" VerticalAlignment="Top" Margin="0,50,0,0">
<Image x:Name="imgBarcode" Stretch="Fill" RenderOptions.BitmapScalingMode="HighQuality" RenderOptions.EdgeMode="Aliased" />
</Border>
图像生成:
imgBarcode.Source = loadBitmap(c.Generate(barcodeText.Text));
imgBarcode.Width = c.GetWidth();
imgBarcode.Height = c.GetHeight();
样本生成代码:
Bitmap bmp = new Bitmap(width, height);
using (Graphics gfx = Graphics.FromImage(bmp))
using (SolidBrush black = new SolidBrush(Color.Black))
using (SolidBrush white = new SolidBrush(Color.White))
{
// Start the barcode:
addBar(gfx, black, white, '*');
foreach (char c in barcode)
{
addCharacter(gfx, black, white, c);
}
// End the barcode:
addBar(gfx, black, white, '*');
}
示例矩形加法:
g.FillRectangle(white, left, top, narrow, height);
left += narrow;
从另一个StackOverflow问题中获取位图:
[DllImport("gdi32")]
static extern int DeleteObject(IntPtr o);
public static BitmapSource loadBitmap(System.Drawing.Bitmap source)
{
IntPtr ip = source.GetHbitmap();
BitmapSource bs = null;
try
{
bs = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(ip,
IntPtr.Zero, Int32Rect.Empty,
System.Windows.Media.Imaging.BitmapSizeOptions.FromEmptyOptions());
}
finally
{
DeleteObject(ip);
}
return bs;
}