CODEWITHSUNDEEP
wpfmvvmprintdialog
mr anto
mr anto

Reputation: 25

WPF/MVVM. Print multiple pictures in a single process

I have to print all pictures stored in a directory. Users' request is that the print preview dialog should be displayed so that they can choose the page arrangement (see picture). I tried to use the Process tool, but it works only for one file. Here is the code:

Dim info As New ProcessStartInfo()
info.Verb = "print"

info.FileName = "C:\Pictures\pic1.jpg"
info.LoadUserProfile = True

Dim p As New Process()
Try
    p.StartInfo = info
    p.Start()
    p.WaitForExit()
    System.Threading.Thread.Sleep(3000)
    If False = p.CloseMainWindow() Then
        p.Kill()
    End If
Catch i As System.InvalidOperationException
    System.Threading.Thread.Sleep(100)
End Try

This works. When I try to set info.FileName to "C:\Pictures\pic1.jpg C:\Pictures\pic2.jpg", or "[pic1];[pic2]", or "."; but I always get the error message

System.ComponentModel.Win32Exception {"could not find file"}

How can I configure it to select all files in the directory?

Upvotes: 0

Views: 178

Answers (3)

Ismail Ch
Ismail Ch

Reputation: 11

Store all files path in a string[] or char[][] (Array of string) then loop this instruction:

rundll32 shimgvw.dll ImageView_PrintTo /pt "files[i]" "HP Color LaserJet M553 PCL 6"

Upvotes: 0

mr anto
mr anto

Reputation: 25

I got to print by looping on directory files. But this causes print process to run in authomatic mode, and one for every file to be printed. This is not what I need: i wish to simulate the multiselection and printing. I tried to run the "print" command in the Windows command shell

Dim pr As New System.Windows.Controls.PrintDialog
                Dim myprinter = pr.PrintQueue.QueuePort.Name


Dim files = "C:\pic1.jpg C:\pic2.jpg"
Dim command = String.Format("/C print /D:{0} {1}", myprinter, files)
info.FileName = "cmd.exe"
info.Arguments = command

the command string generated is

/C print /D:HPColorLaserJetM553 C:\pic1.jpg C:\pic2.jpg

which doesnt work, even if the process ends without apparent errors. If i try to run the command string from windows shell, I get the error

"could not initialize the device D:HPColorLaserJetM553"

Upvotes: 0

Frenchy
Frenchy

Reputation: 17017

you could use 

using System.IO;
:
:
string[] filePaths = Directory.GetFiles(@"c:\Pictures\", "*.jpg");

and after just iterate through filepaths to print each file

Upvotes: 1

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