TIOParams.JPEG_Scale

Declaration

property JPEG_Scale: TIOJPEGScale;

Description

Specifies the size at which to load a JPEG image. It is used to speed up loading when a full size image is not required.

Note:
◼To determine what scaling factor was used, see JPEG_Scale_Used
◼To get the actual size of the image, use OriginalWidth and OriginalHeight

Default: ioJPEG_FULLSIZE (Specified by IOParamDefaults)

Example

// Load a JPEG as fast as possible, ensuring width is >= 150 and height >= 100 (while maintaining the aspect ratio)
ImageEnView1.IO.Params.LoadToWidth  := 150;
ImageEnView1.IO.Params.LoadToHeight := 100;
ImageEnView1.IO.Params.JPEG_Scale := ioJPEG_AUTOCALC;
ImageEnView1.IO.LoadFromFile('C:\myimage.jpg');

See Also

◼Width
◼Height
◼JPEG_Scale_Used
◼OptimizeLoadingParams

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