Parameters
NoneReturn Value
Returns True (nonzero) if successful, otherwise returns False (0).
Explanation
The SetGray method allows you to convert a raster image
to gray.
To execute the SetGray method, set the image handle of the
image in the ImageHandle
property or the Layer(LayerNo).ImageHandle
property. The SetGray method supports 1, 4, 8, 16, 24, and
32 bit images. Note: the SetGray method 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 ConvertColor method.
If successful the resulting raster image data is set in the
LayerNo property (the ImageHandle property or the
Layer(LayerNo).ImageHandle
property. If unsuccessful, 0 is returned.
When the Caption, Message, and ButtonName properties are blank, the
progress dialog box will not be displayed. When the progress dialog
box is displayed, the percentage that the processing has completed
will be shown in the dialog box.