| <name> | code | description |
| NULLPARAM | 1 | "null input parameter structure pointer" |
| NULLVECTOR | 2 | "null output vector pointer" |
| EALLOCATE | 4 | "unable to allocate vector to store window" |
| ELENGTH | 8 | "length of window is <=0, must be positive" |
| TYPEUNKNOWN | 16 | "window is of unknown type" |
| NULLHANDLE | 32 | "input vector is null" |
| WRONGLENGTH | 64 | "input vector is the wrong length" |
| NULLDATA | 128 | "data area of input vector is null" |
| NNUL | 256 | "non-null pointer" |
| NULL | 512 | "null pointer" |
| BETA | 1024 | "Invalid window shape parameter" |
WINDOWH_E<name>,
and the status descriptions in
WINDOWH_MSGE<name>. The source code with these messages is in Window.h on line l.165.