// TextMid draws text centered at (x,y)
func TextMid(x, y float64, s string, font string, size int, style ...string) {
t := C.CString(s)
defer C.free(unsafe.Pointer(t))
C.TextMid(C.VGfloat(x), C.VGfloat(y), t, selectfont(font), C.int(size))
}
// TextMid draws text centered at (x,y)
func TextMid(x, y VGfloat, s string, font string, size int) {
t := C.CString(s)
C.TextMid(C.VGfloat(x), C.VGfloat(y), t, selectfont(font), C.int(size))
C.free(unsafe.Pointer(t))
}