text: #include <wx/headercol.h>
  Represents a column header in controls displaying tabular data such as wxDataViewCtrl or wxGrid.
  Notice that this is an abstract base class which is implemented (usually using the information stored in the associated control) by the different controls using wxHeaderCtrl. As the control only needs to retrieve the information about the column, this class defines only the methods for accessing the various column properties but not for changing them as the setters might not be needed at all, e.g. if the column attributes can only be changed via the methods of the main associated control (this is the case for wxGrid for example). If you do want to allow changing them directly using the column itself, you should inherit from wxSettableHeaderColumn instead of this class.
  Finally, if you don't already store the column information at all anywhere, you should use the concrete wxHeaderColumnSimple class and wxHeaderCtrlSimple.
  Returns the current column alignment.
  Implemented in wxHeaderColumnSimple.
  Returns the bitmap in the header of the column, if any.
  If the column has no associated bitmap, wxNullBitmap should be returned.
  Implemented in wxHeaderColumnSimple.
  Get the column flags.
  This method retrieves all the flags at once, you can also use HasFlag() to test for any individual flag or IsResizeable(), IsSortable(), IsReorderable() and IsHidden() to test for particular flags.
  Implemented in wxHeaderColumnSimple.
  Return the minimal column width.
  Implemented in wxHeaderColumnSimple.
  Get the text shown in the column header.
  Implemented in wxHeaderColumnSimple.
  Returns the current width of the column.
  Implemented in wxHeaderColumnSimple.
  Return true if the specified flag is currently set for this column.
  Returns true if the column is currently hidden.
  This corresponds to wxCOL_HIDDEN flag which is off by default.
  Returns true if the column can be dragged by user to change its order.
  This corresponds to wxCOL_REORDERABLE flag which is on by default.
  Return true if the column can be resized by the user.
  Equivalent to HasFlag(wxCOL_RESIZABLE).
  Returns true if the column is currently shown.
  This corresponds to the absence of wxCOL_HIDDEN flag.
  Returns true if the column can be clicked by user to sort the control contents by the field in this column.
  This corresponds to wxCOL_SORTABLE flag which is off by default.
  Returns true if the column is currently used for sorting.
  Implemented in wxHeaderColumnSimple.
  Returns true, if the sort order is ascending.
  Notice that it only makes sense to call this function if the column is used for sorting at all, i.e. if IsSortKey() returns true.
  Implemented in wxHeaderColumnSimple.