JpegImage
The JpegImage method writes the whole image or its part to JPEG format.
JpegImage
iCompression, iProgressive, sFileName [,nXStart] [,nYStart] [,Width] [,Height]
Parameters
-
iCompression
-
Specifies the coefficient of compression. Should be from 1 to 100.
The recommended value is 90.
-
iProgressive
-
Specifies whether JPEG file will be multi-scan (progressive). If this parameter is zero, JPEG
file will not be progressive. If the parameter is 1, the JPEG will be progressive.
-
sFileName
-
String specifying the name of the file to write to. If sFileName is
a zero length string, the result JPEG image will be produces as SAFEARRAY
return value. You can use this for generation of images with ASP and
sending them to client instead of writing to file.
-
nXStart
-
Specifies the x-coordinate of the first base corner of the bounding rectangle
-
nYStart
-
Specifies the y-coordinate of the first base corner of the bounding rectangle
-
Width
-
Specifies the width of image bounding rectangle
-
Height
-
Specifies the height of image bounding rectangle
Return Value
This method returns binary JPEG image, if sFileName parameter is
zero length string.
Remarks
For generation of images with ASP on the fly and
sending them to client use BinaryWrite
method of Response object.
If you have not specified the image sizes, the whole image will be
compressed.
Unregistered version limitation: the maximal size of the
created picture in JPEG format is 200x200.