Visual Basic (Declaration) | |
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Public Property UseDpi As Boolean |
Visual Basic (Usage) | Copy Code |
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C# | |
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public bool UseDpi {get; set;} |
Managed Extensions for C++ | |
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public: __property bool get_UseDpi(); public: __property void set_UseDpi( bool value ); |
XAML Attributes Usage | |
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<object UseDpi=bool/> |
Dependency Property Information | |
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Identifier field | |
Metadata properties set to true | None |
Return Value
true - calculate the width and height for the image according to the BitmapSource.DpiX and BitmapSource.DpiY, which can be obtained through BitmapSource.Width, BitmapSource.Height.false- calculate the width and height for the image according to the BitmapSource.PixelWidth and BitmapSource.PixelHeight. Default value is true. This is the default behaviour in WPF.
For XAML example, refer to BitmapSourceViewer.
For C#/VB examples, refer to BitmapSourceViewer.
The physical resolution of an image is measured in dots per inch (DPI).
When you load an image, the BitmapSource.XResolution and BitmapSource.YResolution properties are updated
with the DPI values for the horizontal and vertical resolution. Some images have different horizontal and vertical resolutions.
For example, the horizontal resolution of a fax image is typically twice its vertical resolution (for example 200 by 100).
In such cases, the displayed images will appear elongated if you do not account for the resolution.
Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Vista, and Windows Server 2003 family