[Gambas-user] How to know how many pages a pdf file has.

[Tobias Boege]

On Thu, 24 Apr 2014, Ru Vuott wrote:
> Hello,
> 
> I "suppose", to know how many pages a pdf file has, I should use this line:
> 
>       pdf.Index.Count
> 
> Where pdf is a "PdfDocument".
> 
> I do not know if I'm wrong, but I can not run that line.
> 
> *************************************
> 
> Public Sub Form_Open()
> 
>  Dim index As Short = 1
>  Dim pdf As New PdfDocument
>  Dim pc As Picture
>   
>   
>   With pdf
>       .Open("/path/of/my/file.pdf")
>       If .Ready = True Then
> ' It loads first page:
>      pc = pdf[1].Image.Picture
> 
>      PictureBox1.Picture = pc
>      PictureBox1.Resize(pdf[1].Width, pdf[1].Height)
> 
>   Else
>      Message.Error("<FONT color=darkred><B>Unable loading file pdf !")
>     Quit
>   Endif
>  
>   End With
>   
>   Print pdf.Index.Count  '  <=======
>   
> End
> 
> ****************************************************
> 
> I obtain at that line this error notice:
> " Null object "
> 
> I do not understand....
> 

Have you tried PdfDocument.Count? :-)

-- 
"There's an old saying: Don't change anything... ever!" -- Mr. Monk