| Pregunta: | 41656 - IMPRIMIR DESDE VISUAL.NET |
| Autor: | Miguel Beltrán Soto |
| Quiero imprimir desde visual.net a una impresora generic only / text , intente usar el printdocument pero me marca error solo en estas impresoras.. Como ´puedo solucionar este problema?? | |
| Respuesta: | Carlos M. Castillo Umanzor |
| prueba con (la segunda funcion la encontré en la documentación de dot Net, la primera fue una adaptacion para que imprimiera directamente un file): Dim printFontType As Font Dim strReader As StreamReader Dim myCadena As String Public Sub PrintDoc(ByVal NombreArchivo As String) Dim cadRuta As String Try cadRuta = Application.StartupPath & "\OUTPUT" strReader = New StreamReader(cadRuta & "\" & NombreArchivo) Try printFontType = New Font("Arial", 8) Dim pd As New PrintDocument AddHandler pd.PrintPage, AddressOf pd_PrintPage pd.Print() Finally strReader.Close() End Try Catch ex As Exception MessageBox.Show(ex.Message) End Try End Sub Private Sub pd_PrintPage(ByVal sender As Object, ByVal ev As PrintPageEventArgs) Dim linesPerPage As Single = 0 Dim yPos As Single = 0 Dim count As Integer = 0 Dim leftMargin As Single = ev.MarginBounds.Left Dim topMargin As Single = ev.MarginBounds.Top Dim line As String = Nothing ' Calculate the number of lines per page. linesPerPage = ev.MarginBounds.Height / printFontType.GetHeight(ev.Graphics) ' Iterate over the file, printing each line. While count < linesPerPage line = strReader.ReadLine() If line Is Nothing Then Exit While End If yPos = topMargin + count * printFontType.GetHeight(ev.Graphics) ev.Graphics.DrawString(line, printFontType, Brushes.Black, leftMargin, _ yPos, New StringFormat) count += 1 End While ' If more lines exist, print another page. If Not (line Is Nothing) Then ev.HasMorePages = True Else ev.HasMorePages = False End If End Sub | |