| Parameter | Reference | Type | Length | Default | Optional | Text |
|---|---|---|---|---|---|---|
| HANDLE | CNTL_HANDLE | 0 | Handle for Tree Control | |||
| HEADER_NAME | C | C | 0 | Header Name | ||
| NO_FLUSH | C | C | 0 | X |
| Parameter | Reference | Type | Length | Text |
|---|---|---|---|---|
| WIDTH | I | I | 4 | Header Width |
| Exception | Text |
|---|---|
| CNTL_SYSTEM_ERROR | |
| FAILED | General Error |
| HEADER_NOT_FOUND | Header with Name HEADER_NAME Does Not Exist |
| INSTANCE_NOT_FOUND | |
| TREE_HAS_NO_HEADERS | Tree Control Has No Header |