The routine gEnqBrokenLine() returns the currently requested broken line type. The current line type may be set by calling gSetBrokenLine(). The default for the broken line type is solid, which corresponds to a call to gSetBrokenLine(0).
If brk is returned set to zero, the current line type is solid. If brk is in the range 1 to 256, the parameters that define the current line type may be enquired by calling gEnqBrokenLineStyle().