Writes the contents of @key_file to @filename using g_file_set_contents().
This function can fail for any of the reasons that g_file_set_contents() may fail.
the name of the file to write to
%TRUE if successful, else %FALSE with @error set
GException on failure.
2.40
See Implementation
Writes the contents of @key_file to @filename using g_file_set_contents().
This function can fail for any of the reasons that g_file_set_contents() may fail.