IKSetGray

This function changes a raster image to gray.

[C++Builder/Visual C++] HANDLE IKSetGray(HANDLE Handle, IKPROCESSPROC UserProc, LPCTSTR Caption, LPCTSTR Message, LPCTSTR Button);

[Delphi] function IKSetGray(Handle: THandle; UserProc: LONG_PTR; Caption, Message, Button: PChar): THandle;

[Visual Basic] Function IKSetGray(ByVal Handle As Long, ByVal UserProc As Long, ByVal Caption As String, ByVal Message As String, ByVal Button As String) As Long

Parameters

Name	Explanation
Handle	The image handle of the raster image (can be a 1, 4, 8, 16, 24, or 32 bit image).
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 the raster image handle if successful. Returns 0 if unsuccessful.

Explanation

The IKSetGray function changes a raster image to gray.

Note: the IKSetGray function will convert a raster image to gray without changing the bitcount. A 24 bit color image, for example, is coverted to gray but is still 24 bit color. To change an image to 8-bit grayscale, please use the IKConvertColor function.

Note: the image handles passed to this function are NOT automatically freed after execution.

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 Ik9Effect.dll, Ik9EffectA.dll, Ik9Effect64.dll, Ik9Effect64A.dlll section.