IsGrayscale property (Main Control)

Visual Basic example
Visual C++ 4.0 example

Syntax short IsGrayscale

Overview: Refer to Examining and Altering Bitmaps.

Remarks

Is an indicator of the kind of grayscale palette, if any, that a bitmap has.

Grayscale images can be 1, 4, 8, 12, or 16-bit. With a 1-bit image, you can use this property to check for inversion (for example, white lines on a black background) caused by an inverted palette.

Value	Meaning
GRAY_NO	Not grayscale.
GRAY_ORDEREDNORMAL	Normally ordered grayscale (dark to light).
GRAY_ORDEREDINVERSE	Reverse ordered grayscale (light to dark).
GRAY_NOTORDERED	Unordered grayscale.

Support for 12 and 16 bit grayscale images is only available in the Document/Medical Toolkits.