InvertPixMask

Declaration:	TMetaData.InvertPixMask (ixMask: integer): integer;
Inverts the pixel mask specified by the parameter ixMask (valid range 1..32). The function returns the following error codes:  0 .... everything OK -1 ... specified mask does not exist

Hint:

In order to directly access the metadata of the currently loaded dataset you can use the pre-declared global variable MData.