IsSigned property (Main Control)

Visual Basic example
Visual C++ 4.0 example

Overview: Refer to Examining and Altering Bitmaps

Remarks

Indicates whether the bitmap currently loaded in the control contains signed data. This property is valid only if the control contains a bitmap. Possible values are:

Value	Meaning
TRUE	The bitmap data is signed.
FALSE	The bitmap data is not signed.

If this property is TRUE, the signed bitmap data should be converted to unsigned using the ConvertSignedToUnsigned method. If the bitmap data is signed, image processing and the paint functions may not work correctly. Currently, only TIF files contain signed data. A bitmap with signed data will not be loaded unless the LoadSigned property is set to TRUE before loading the image.

If this property is FALSE, no further processing is needed.

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