Newsgroup: it.comp.lang.visual-basic
Titolo: Aprire file

Ciao a tutti,
                  io ho creato un programma di messaggistica con file
allegati.
Ora pero nella mia form vedo i miei allegati ma non so come farli ad
APRIRE.
Con shell ed il percorso mi da errore.
Sapete dirmi dove posso trovare un esempio.
Grazie in anticipo

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Non vorrei sbagliarmi ma dipende dal tipo di file allegato, se č solo
testo lo puoi aprire tu e caricarlo in un textbox se č un pdf ti devi
affidare all'acrobat reader e cosě via...

Con shell ed il percorso mi da errore.
Devi usare ShellExecute

shellexecute non me lo prende.
Forse perchè ho il vb5?
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 > Devi usare ShellExecute
shellexecute e' una funzione delle API di windows...
Da API-guide:
#### Dichiarazione #################################################
Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal
hwnd As Long, ByVal lpOperation As String, ByVal lpFile As String, ByVal
lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long)
As Long
#### Esempio #################################################
Private Declare Function ShellExecute Lib "shell32.dll" Alias
"ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation As String, ByVal
lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String,
ByVal nShowCmd As Long) As Long
Const SW_SHOWNORMAL = 1
Private Sub Form_Load()
    'KPD-Team 1998
    'URL: 
http://www.allapi.net/
    'E-Mail: KPD...@Allapi.net
    'Send an E-Mail to the KPD-Team
    ShellExecute Me.hwnd, vbNullString, "mailto:
KPD...@Allapi.net
",
vbNullString, "C:\", SW_SHOWNORMAL
End Sub
#### Parametri #################################################
· hwnd
Specifies a parent window. This window receives any message boxes that an
application produces. For example, an application may report an error by
producing a message box.
· lpOperation
Pointer to a null-terminated string that specifies the operation to perform.
The following operation strings are valid:
"open"
 The function opens the file specified by lpFile. The file can be an
executable file or a document file. The file can be a folder to open.
"print"
 The function prints the file specified by lpFile. The file should be a
document file. If the file is an executable file, the function opens the
file, as if "open" had been specified.
"explore"
 The function explores the folder specified by lpFile.
The lpOperation parameter can be NULL. In that case, the function opens the
file specified by lpFile.
· lpFile
Pointer to a null-terminated string that specifies the file to open or print
or the folder to open or explore. The function can open an executable file
or a document file. The function can print a document file.
· lpParameters
If lpFile specifies an executable file, lpParameters is a pointer to a
null-terminated string that specifies parameters to be passed to the
application.
If lpFile specifies a document file, lpParameters should be NULL.
· lpDirectory
Pointer to a null-terminated string that specifies the default directory.
· nShowCmd
If lpFile specifies an executable file, nShowCmd specifies how the
application is to be shown when it is opened. This parameter can be one of
the following values:
SW_HIDE
 Hides the window and activates another window.
SW_MAXIMIZE
 Maximizes the specified window.
SW_MINIMIZE
 Minimizes the specified window and activates the next top-level window in
the Z order.
SW_RESTORE
 Activates and displays the window. If the window is minimized or maximized,
Windows restores it to its original size and position. An application should
specify this flag when restoring a minimized window.
SW_SHOW
 Activates the window and displays it in its current size and position.
SW_SHOWDEFAULT
 Sets the show state based on the SW_ flag specified in the STARTUPINFO
structure passed to the CreateProcess function by the program that started
the application. An application should call ShowWindow with this flag to set
the initial show state of its main window.
SW_SHOWMAXIMIZED
 Activates the window and displays it as a maximized window.
SW_SHOWMINIMIZED
 Activates the window and displays it as a minimized window.
SW_SHOWMINNOACTIVE
 Displays the window as a minimized window. The active window remains
active.
SW_SHOWNA
 Displays the window in its current state. The active window remains active.
SW_SHOWNOACTIVATE
 Displays a window in its most recent size and position. The active window
remains active.
SW_SHOWNORMAL
 Activates and displays a window. If the window is minimized or maximized,
Windows restores it to its original size and position. An application should
specify this flag when displaying the window for the first time.
If lpFile specifies a document file, nShowCmd should be zero.