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)
// 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