The DEFINE_LAYER_STYLE command allows you to define a layer style for the area, line, or point features in a vector layer. You can then apply this with the IMPORT or SET_LAYER_OPTIONS command later.
The DEFINE_LAYER_STYLE command consists of a single command line followed by a series of lines with the contents of a .gm_layer_style file, like you would save from the Area Styles, Line Styles, or Point Styles tab of the Options dialog for a vector layer. You can also provide a .gm_layer_style in the FILENAME parameter to just reference an external file rather than embedding the layer style directly in the script file.
The DEFINE_LAYER_STYLE command is terminated with a single line containing only the text END_DEFINE_LAYER_STYLE.
For a sample of the DEFINE_LAYER_STYLE command in use, load some data and set up some attribute-based or other custom styling on the Styles tabs of the Options dialog, then save a Global Mapper workspace file from the File->Save Workspace menu command. Open the resulting .gmw file in an editor and you can see how the DEFINE_LAYER_STYLE command is used to define a layer style and then use it in the IMPORT command.
The following parameters are required by the DEFINE_LAYER_STYLE command.