bgiGetGizmoHeight

Gets the height of a gizmo control in pixels. Searches gizmoMap for the gizmo ID. Returns stored height value from CGizmo structure on success, -1 if gizmo not found.

This function retrieves the control's vertical size in pixels. Returns the value set during creation or via bgiSetGizmoLayout. Use for calculating layouts, vertical spacing, or determining control dimensions. Returns -1 for invalid gizmo IDs. Height does not include window borders or decorations.