IKJ2kFileSaveMem

This function saves raster image data in JPEG format as raw image data.

[C++Builder/Visual C++] BOOL IKJpegFileSaveMem(HANDLE InHandle, HANDLE *OutHandle, int Type, int Quality, int SubSamp, LPCSTR Comment, IKPROCESSPROC UserProc, LPCTSTR Caption, LPCTSTR Message, LPCTSTR Button);

[Delphi] function IKJpegFileSaveMem(InHandle: THandle; var OutHandle: THandle; Type_, Quality, SubSamp: Integer; Comment: PChar; UserProc: LONG_PTR; Caption, Message, Button: PChar): LongBool;

[Visual Basic] Function IKJpegFileSaveMem(ByVal InHandle As Long, OutHandle As Long, ByVal Type As Long, ByVal Quality As Long, ByVal SubSamp As Long, ByVal Comment As String, ByVal UserProc As Long, ByVal Caption As String, ByVal Message As String, ByVal Button As String) As Long

Parameters

Name	Explanation
InHandle	The image handle of the raster image
OutHandle	The raw image data to be saved
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

Return Value

Returns True (nonzero) if successful. Returns False (0) if unsuccessful.

Explanation

The IKJpegFileSaveMem function saves raster image data in JPEG format as raw image data. 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 Ik9File.dll, Ik9FileA.dll, Ik9File64.dll, Ik9File64A.dll section.

Except for the fact that the raster image is saved as raw image data, this function operates in the same way as the IKJpegFileSave function.