I strongly recommend that you include the file extension (.jpg) in the field, why limit yourself to .jpg? png is used more and more, jpg may disappear over time.

Local lcFile As String, ;
   lcImageName As String, ;
   lcImagePath As String
Select ImgMarca && My cursor name
m.lcImagePath = ([\\127.0.0.1\imagens\])
Scan
   m.lcImageName = Alltrim(ImgMarca.campo) + [.jpg]
   m.lcFile = m.lcImagePath + Forceext(m.lcImageName, [jpg])
   If Adir(laDummy, m.lcFile) = 1
      Replace u_imgMarca With m.lcFile
   Else
      Replace u_imgMarca With []
   Endif
Endscan

>Hello comunity
>
>I have write this code above, that is based on a cursor, also on my local computer on disk C: i create a folder "Imagens" where i put in my image "Vinhos.jpg", also i don´t understand why the field ImgMarca.u_imgMarca keep the following path : \\127.0.0.1\Imagens\vinhos.jpg.
>
>

>select ImgMarca && My cursor name
>scan
>ImagePath = ('\\127.0.0.1\imagens\')
>ImageName = alltrim(ImgMarca.campo)+'.jpg'
>
>
>if NOT empty(sys(2000,"ImagePath+ImageName"))
>   replace ImgMarca.u_imgMarca with alltrim(ImagePath+ImageName) 
>else
>   replace ImgMarca.u_imgMarca with ''
>endif
>endscan
>

>
>Someone could give me an Help, because i need to solve this problem quickly.
>
>Many thanks
>Luis Santos