Binary package “libxfcegui4-dev” in ubuntu cosmic

Development files for libxfcegui4-4

 This package contains the headers and the static library
 for libxfcegui4-4. If you intend to code applications
 which use some of these functions (probably Xfce4-based
 applications), then you have to install this package.
 .
 The libxfcegui4 Reference Manual is also included and it can be
 consulted with Devhelp or a web browser.