Global Mapper SDK
Sets the default style and font to use for drawing lines with the given line classification. Pass NULL for the line style to reset the default drawing style to the default style for that classification of line.
Typically, when modifying the drawing style of a line class you'll want to call GM_GetLineFeatureClassDrawStyle to get the current drawing style, then just change what you need, then pass your copy in to this function.
Syntax
C++
Copy
GM_Error_t32 GM_SetLineFeatureClassDrawStyle
(
LineFeatureClass_t16 aFeatureClass, // IN: Feature class to set draw style for
const GM_LineStyle_t* aLineStyle // IN: New style to use for line (NULL to reset to default)
);