The current marker symbol is selected from the current marker set using GpiSetMarker. The marker symbol selected for the specified presentation space is used for all subsequent GpiMarker and GpiPolyMarker calls until a new symbol is selected.
The following table describes the marker symbols provided by the PM in a base marker set. These symbols are not necessarily available from other marker sets.
The Base Marker Set
┌──────────────────┬────────────────────────────────┬──────────┐ │Symbol │Identifier │Long Value│ ├──────────────────┼────────────────────────────────┼──────────┤ │Cross │MARKSYM_CROSS │1L │ ├──────────────────┼────────────────────────────────┼──────────┤ │Plus sign │MARKSYM_PLUS │2L │ ├──────────────────┼────────────────────────────────┼──────────┤ │Diamond │MARKSYM_DIAMOND │3L │ ├──────────────────┼────────────────────────────────┼──────────┤ │Square │MARKSYM_SQUARE │4L │ ├──────────────────┼────────────────────────────────┼──────────┤ │Six-point star │MARKSYM_SIXPOINTSTAR │5L │ ├──────────────────┼────────────────────────────────┼──────────┤ │Eight-point star │MARKSYM_EIGHTPOINTSTAR │6L │ ├──────────────────┼────────────────────────────────┼──────────┤ │Solid diamond │MARKSYM_SOLIDDIAMOND │7L │ ├──────────────────┼────────────────────────────────┼──────────┤ │Solid square │MARKSYM_SOLIDSQUARE │8L │ ├──────────────────┼────────────────────────────────┼──────────┤ │Dot │MARKSYM_DOT │9L │ ├──────────────────┼────────────────────────────────┼──────────┤ │Small circle │MARKSYM_SMALLCIRCLE │10L │ ├──────────────────┼────────────────────────────────┼──────────┤ │Blank, (Often │MARKSYM_BLANK │64L │ │called the │ │ │ │invisible marker) │ │ │ └──────────────────┴────────────────────────────────┴──────────┘The default marker symbol (MARKSYM_DEFAULT) is identical to the MARKSYM_CROSS symbol and has a long value of 0L. The error marker symbol (MARKSYM_ERROR) has a long value of -1L.
The following figure shows the visible marker symbols from the base marker
set. Your application can determine the marker set with GpiQueryMarkerSet.
The Base Marker Set