Gets an System.Drawing.Imaging.Encoder object that is initialized with the globally unique identifier for the quality parameter category.
Syntax
Remarks
The Encoder.Quality category specifies the level of compression for an image. When used to construct an System.Drawing.Imaging.EncoderParameter, the range of useful values for the quality category is from 0 to 100. The lower the number specified, the higher the compression and therefore the lower the quality of the image. Zero would give you the lowest quality image and 100 the highest.
When you pass a parameter to an image encoder, the parameter is encapsulated in an System.Drawing.Imaging.EncoderParameter object. One of the fields of the System.Drawing.Imaging.EncoderParameter object is a GUID that specifies the category of the parameter. Use the static fields of the System.Drawing.Imaging.Encoder class to retrieve an System.Drawing.Imaging.Encoder that contains parameters of the desired category.
The image encoders that are built into ndptecgdiplus receive parameters that belong to several categories. The following table lists all the categories and the GUID associated with each category.
| Encoder.ChrominanceTable |
f2e455dc-09b3-4316-8260-676ada32481c |
| Encoder.ColorDepth |
66087055-ad66-4c7c-9a18-38a2310b8337 |
| Encoder.Compression |
e09d739d-ccd4-44ee-8eba-3fbf8be4fc58 |
| Encoder.LuminanceTable |
edb33bce-0266-4a77-b904-27216099e717 |
| Encoder.Quality |
1d5be4b5-fa4a-452d-9cdd-5db35105e7eb |
| Encoder.RenderMethod |
6d42c53a-229a-4825-8bb7-5c99e2b9a8b8 |
| Encoder.SaveFlag |
292266fc-ac40-47bf-8cfc-a85b89a655de |
| Encoder.ScanMethod |
3a4e2661-3109-4e56-8536-42c156e7dcfa |
| Encoder.Transformation |
8d0eb2d1-a58e-4ea8-aa14-108074b7b6f9 |
| Encoder.Version |
24d18c76-814a-41a4-bf53-1c219cccf797 |
Requirements
Assembly: System.Drawing (in System.Drawing.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0