Converts a bitmap to 4 bits. If the bitmap was a high-color bitmap (16, 24 or 32-bit) or if it was a monochrome or greyscale bitmap (1 or 8-bit), the end result will be a greyscale bitmap, otherwise (1-bit palletised bitmaps) it will be a palletised bitmap.

public static FIBITMAP ConvertTo4Bits(
	FIBITMAP dib
)

Public Shared Function ConvertTo4Bits ( _
	dib As FIBITMAP _
) As FIBITMAP

public:
static FIBITMAP ConvertTo4Bits(
	FIBITMAP dib
)