Package: cairo
Function cairo:pattern-create-linear
Lambda Listcairo:pattern-create-linear (x0 y0 x1 y1) ArgumentsReturn Value The newly created cairo:pattern-t instance if successful, or an
error pattern in case of no memory. The caller owns the returned instance and should call the cairo:pattern-destroy function when finished with
it. Details Create a new linear gradient cairo:pattern-t instance along the line defined by (x0,y0) and (x1,y1).
This function will always return a valid patttern, but if an error occurred
the pattern status will be set to an error. To inspect the status of a pattern use the cairo:pattern-status function. Before using the gradient pattern, a number of color stops should be defined using the cairo:pattern-add-color-stop-rgb or cairo:pattern-add-color-stop-rgba functions. NotesLisp implementation | See also |
2025-1-19