Encoder Class
An Encoder object encapsulates a globally unique identifier (GUID) that identifies the category of an image encoder parameter.
Assembly: System.Drawing (in System.Drawing.dll)
| Name | Description | |
|---|---|---|
![]() | Encoder(Guid) | Initializes a new instance of the Encoder class from the specified globally unique identifier (GUID). The GUID specifies an image encoder parameter category. |
| Name | Description | |
|---|---|---|
![]() | Guid | Gets a globally unique identifier (GUID) that identifies an image encoder parameter category. |
| Name | Description | |
|---|---|---|
![]() | Equals(Object^) | Determines whether the specified object is equal to the current object.(Inherited from Object.) |
![]() | GetHashCode() | Serves as the default hash function. (Inherited from Object.) |
![]() | GetType() | |
![]() | ToString() | Returns a string that represents the current object.(Inherited from Object.) |
| Name | Description | |
|---|---|---|
![]() ![]() | ChrominanceTable | An Encoder object that is initialized with the globally unique identifier for the chrominance table parameter category. |
![]() ![]() | ColorDepth | An Encoder object that is initialized with the globally unique identifier for the color depth parameter category. |
![]() ![]() | Compression | An Encoder object that is initialized with the globally unique identifier for the compression parameter category. |
![]() ![]() | LuminanceTable | Represents an Encoder object that is initialized with the globally unique identifier for the luminance table parameter category. |
![]() ![]() | Quality | Gets an Encoder object that is initialized with the globally unique identifier for the quality parameter category. |
![]() ![]() | RenderMethod | Represents an Encoder object that is initialized with the globally unique identifier for the render method parameter category. |
![]() ![]() | SaveFlag | Represents an Encoder object that is initialized with the globally unique identifier for the save flag parameter category. |
![]() ![]() | ScanMethod | Represents an Encoder object that is initialized with the globally unique identifier for the scan method parameter category. |
![]() ![]() | Transformation | Represents an Encoder object that is initialized with the globally unique identifier for the transformation parameter category. |
![]() ![]() | Version | Represents an Encoder object that is initialized with the globally unique identifier for the version parameter category. |
When you pass a parameter to an image encoder, the parameter is encapsulated in an EncoderParameter object. One of the fields of the EncoderParameter object is a GUID that specifies the category of the parameter. Use the static fields of the Encoder class to retrieve an Encoder that contains parameters of the desired category.
The image encoders that are built into GDI+ receive parameters that belong to several categories. The following table lists all the categories and the GUID associated with each category.
- ChrominanceTable
f2e455dc-09b3-4316-8260-676ada32481c
- ColorDepth
66087055-ad66-4c7c-9a18-38a2310b8337
- Compression
e09d739d-ccd4-44ee-8eba-3fbf8be4fc58
- LuminanceTable
edb33bce-0266-4a77-b904-27216099e717
- Quality
1d5be4b5-fa4a-452d-9cdd-5db35105e7eb
- RenderMethod
6d42c53a-229a-4825-8bb7-5c99e2b9a8b8
- SaveFlag
292266fc-ac40-47bf-8cfc-a85b89a655de
- ScanMethod
3a4e2661-3109-4e56-8536-42c156e7dcfa
- Transformation
8d0eb2d1-a58e-4ea8-aa14-108074b7b6f9
- Version
24d18c76-814a-41a4-bf53-1c219cccf797
Available since 1.1
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.



