EncoderParameterValueType Enumeration

EncoderParameterValueType Enumeration

 

Used to specify the data type of the EncoderParameter used with the Save or SaveAdd method of an image.

Namespace:   System.Drawing.Imaging
Assembly:  System.Drawing (in System.Drawing.dll)

public enum EncoderParameterValueType

Member nameDescription
ValueTypeAscii

Specifies that the array of values is a null-terminated ASCII character string. Note that the NumberOfValues data member of the EncoderParameter object indicates the length of the character string including the NULL terminator.

ValueTypeByte

Specifies that each value in the array is an 8-bit unsigned integer.

ValueTypeLong

Specifies that each value in the array is a 32-bit unsigned integer.

ValueTypeLongRange

Specifies that each value in the array is a pair of 32-bit unsigned integers. Each pair represents a range of numbers.

ValueTypeRational

Specifies that each value in the array is a pair of 32-bit unsigned integers. Each pair represents a fraction, the first integer being the numerator and the second integer being the denominator.

ValueTypeRationalRange

Specifies that each value in the array is a set of four, 32-bit unsigned integers. The first two integers represent one fraction, and the second two integers represent a second fraction. The two fractions represent a range of rational numbers. The first fraction is the smallest rational number in the range, and the second fraction is the largest rational number in the range.

ValueTypeShort

Specifies that each value in the array is a 16-bit, unsigned integer.

ValueTypeUndefined

Specifies that the array of values is an array of bytes that has no data type defined.

GDI+ uses image encoders to convert the images stored in Bitmap objects to various file formats. Image encoders are built into GDI+ for the BMP, JPEG, GIF, TIFF, and PNG formats. An encoder is invoked when you call the Save or SaveAdd method of a Bitmap object.

The NumberOfValues data member of the EncoderParameter object indicates the length of the character string including the null terminator.

.NET Framework
Available since 1.1
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