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RGtk2 (version 2.12.17)

cairoSurfaceSetUserData: cairoSurfaceSetUserData

Description

Attach user data to surface. To remove user data from a surface, call this function with the key that was used to set it and NULL for data.

Usage

cairoSurfaceSetUserData(surface, key, user.data)

Arguments

surface
[CairoSurface] a CairoSurface
key
[CairoUserDataKey] the a CairoUserDataKey to attach the user data to
user.data
[R object] the user data to attach to the surface

Value

  • [CairoStatus] CAIRO_STATUS_SUCCESS or CAIRO_STATUS_NO_MEMORY if a slot could not be allocated for the user data.