This function saves raster image data, including exif information, in a JPEG file.
Parameters
| Name | Explanation |
|---|---|
| FileName | The name of the file where the image data is saved |
| Handle | The image handle of the raster image |
| Type | 0: Standard DCT, 1: ProgressiveDCT |
| Quality | JPEG compression quality coefficient (from 0 to 100: 75 is recommended) |
| SubSamp | Subsampling (enabled for 24 bit color). Y:Cb:Cr (0: 4:1:1, 1: 4:2:2, 2: 4:4:4) |
| Comment | The comment text to be saved (MAX:1023 bytes) |
| UserProc | The address of the user function (If not using the user function then set to 0) |
| Caption | Sets the text displayed in the title bar of the progress dialog box |
| Message | Sets the message displayed in the progress dialog box |
| Button | Sets the name of the button displayed in the progress dialog box |
| ExifInfo | Exif information structured variable (user defined) |
Return Value
Returns True (nonzero) if successful. Returns False (0) if unsuccessful.
Explanation
The IKJpegFileSave function saves raster image data, including exif information, in a JPEG file. Supports 8 bit grayscale and 24 bit color. In the SubSamp parameter, Y refers to luminance, Cr and Cb refer to chrominance.
If the user function is set or if the Caption, Message, and Button parameters are blank then the Progress dialog box is not displayed. If the Progress dialog box is displayed, it indicates the percentage of the current process completed. For more information about the user function please refer to the Definition of User Function in the Ik10File.dll, Ik10FileA.dll, Ik10File64.dll, Ik10File64A.dll section.
For information regarding EXIF_INFO, please see the explanation of the EXIF_INFO member variables in the Ik10File.dll, Ik10FileA.dll, Ik10File64.dll, Ik10File64A.dll section.
For more information about the user function please refer to the Definition of User Function in the Ik10File.dll, Ik10FileA.dll, Ik10File64.dll, Ik10File64A.dll section.
It is possible to save the file directly to FTP server or HTTP(S) server by setting the FTP or HTTP(S) server name in the FileName parameter.
(1) When saving the file to a local drive or network drive:
IKJpegFileSaveEx("c:\abc.jpg",
.....)
(2) When saving the file to FTP server:
IKJpegFileSaveEx("FTP://www.newtone.co.jp/image/abc.jpg;;;true;user;password",
.....)
(*)Parameter order when setting the FileName:
FTP://ServerName/FolderName/FileName;ProxyName;PortNumber;PassiveMode;UserName;Password
When setting or changing the proxy server, the port number, and passive (PASV) mode connection, please be sure to pass in this information seperated by semicolons. Set the FTP server name or IP address, the proxy server name or IP address, the port number, passive mode connection, etc. If the port number is omitted, the defaul port number will be used. Passive mode connection can be either "true" or "false" in upper case or lower case letters. If omitted, passive mode connection will be used.
(3) When saving the file to HTTP(S) server:
IKJpegFileSaveEx("http://www.newtone.co.jp/image/abc.jpg;;;;user;password",
.....)
(*)Parameter order when setting the FileName:
HTTP://ServerName/FolderName/FileName;ProxyName;PortNumber;HTTPS;UserName;Password
When setting or changing the proxy server, the port number, or using HTTPS, please be sure to pass in this information seperated by semicolons. Set the HTTP(S) server name or IP address, the proxy server name or IP address, the port number, HTTPS, etc. If the port number is omitted, the defaul port number will be used. IF HTTPS is omitted then HTTP server will be used.
[Differences from ImageKit7 ActiveX]
The ImageKit7 ActiveX only allowed files from local drives or
network drives to be loaded.The ImageKit10 ActiveX allows files to
be loaded or saved to FTP and HTTP(S) servers.
IKJpegFileSaveEx method has been added.