print.frm

这个是grs源程序,mo在图象显示上很好,所以大家一定要下载

VERSION 5.00
Object = "{BDC217C8-ED16-11CD-956C-0000C04E4C0A}#1.1#0"; "TABCTL32.OCX"
Begin VB.Form frmPrint 
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "Print the Map"
   ClientHeight    =   3990
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   4965
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   3990
   ScaleWidth      =   4965
   ShowInTaskbar   =   0   'False
   StartUpPosition =   3  'Windows Default
   Begin TabDlg.SSTab sstPrint 
      Height          =   3015
      Left            =   120
      TabIndex        =   0
      Top             =   840
      Width           =   4725
      _ExtentX        =   8334
      _ExtentY        =   5318
      _Version        =   393216
      Tabs            =   2
      TabsPerRow      =   2
      TabHeight       =   520
      TabCaption(0)   =   "Print to Fill the Page"
      TabPicture(0)   =   "Print.frx":0000
      Tab(0).ControlEnabled=   -1  'True
      Tab(0).Control(0)=   "cmdPrintNow(0)"
      Tab(0).Control(0).Enabled=   0   'False
      Tab(0).Control(1)=   "optLand"
      Tab(0).Control(1).Enabled=   0   'False
      Tab(0).Control(2)=   "optPortrait"
      Tab(0).Control(2).Enabled=   0   'False
      Tab(0).ControlCount=   3
      TabCaption(1)   =   "Print to Scale"
      TabPicture(1)   =   "Print.frx":001C
      Tab(1).ControlEnabled=   0   'False
      Tab(1).Control(0)=   "lblMapUnits"
      Tab(1).Control(1)=   "lblIwant"
      Tab(1).Control(2)=   "lblOneTo"
      Tab(1).Control(3)=   "txtRatioScale"
      Tab(1).Control(4)=   "cmdPrintNow(1)"
      Tab(1).ControlCount=   5
      Begin VB.OptionButton optPortrait 
         Caption         =   "Portrait"
         Height          =   255
         Left            =   1680
         TabIndex        =   10
         Top             =   1200
         Width           =   1815
      End
      Begin VB.OptionButton optLand 
         Caption         =   "Landscape"
         Height          =   255
         Left            =   1680
         TabIndex        =   9
         Top             =   960
         Value           =   -1  'True
         Width           =   1455
      End
      Begin VB.CommandButton cmdPrintNow 
         Caption         =   "Print Now"
         Height          =   495
         Index           =   1
         Left            =   -73320
         TabIndex        =   8
         Top             =   2280
         Width           =   1335
      End
      Begin VB.TextBox txtRatioScale 
         BeginProperty Font 
            Name            =   "MS Sans Serif"
            Size            =   13.5
            Charset         =   0
            Weight          =   700
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   480
         Left            =   -73680
         TabIndex        =   7
         Top             =   1680
         Width           =   2655
      End
      Begin VB.CommandButton cmdPrintNow 
         Caption         =   "Print Now"
         Height          =   495
         Index           =   0
         Left            =   1680
         TabIndex        =   3
         Top             =   1680
         Width           =   1335
      End
      Begin VB.Label lblOneTo 
         Alignment       =   1  'Right Justify
         Caption         =   "1 :"
         BeginProperty Font 
            Name            =   "MS Sans Serif"
            Size            =   13.5
            Charset         =   0
            Weight          =   700
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   375
         Left            =   -74280
         TabIndex        =   6
         Top             =   1725
         Width           =   495
      End
      Begin VB.Label lblIwant 
         Caption         =   "I want my map printed to this ratio scale:"
         Height          =   255
         Left            =   -74400
         TabIndex        =   5
         Top             =   1320
         Width           =   3255
      End
      Begin VB.Label lblMapUnits 
         Caption         =   $"Print.frx":0038
         Height          =   615
         Left            =   -74760
         TabIndex        =   4
         Top             =   480
         Width           =   4095
      End
   End
   Begin VB.Label lblDefaultPrinter 
      Alignment       =   2  'Center
      BackColor       =   &H00E0E0E0&
      Height          =   255
      Left            =   120
      TabIndex        =   2
      Top             =   360
      Width           =   4695
   End
   Begin VB.Label lblDefaultLabel 
      BackColor       =   &H00E0E0E0&
      Caption         =   "Current Windows default printer:"
      Height          =   255
      Left            =   120
      TabIndex        =   1
      Top             =   120
      Width           =   4695
   End
End
Attribute VB_Name = "frmPrint"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Sub Form_Load()

lblDefaultPrinter.Caption = Printer.DeviceName
sstPrint.Tab = 0

'Printing to fit the page will work whether or not
'the map units are defined on the MapProperties form.
'
'However, printing to scale will only work if the
'map units are known.  Instruct the user if this is
'the case.

If frmMain.strMapUnits <> "Unknown" Then
  lblMapUnits.Caption = "Your map units are currently set as " & _
            UCase(frmMain.strMapUnits) & ". It is very important " & _
            "that this be correct for the map to print to the " & _
            "scale you expect."
 Else
  lblMapUnits.Caption = "Your map units are currently set as " & _
            UCase(frmMain.strMapUnits) & ".  Printing to scale " & _
            "cannot continue.  Please set the correct map units " & _
            "in the Map Properties dialog."
  lblOneTo.Enabled = False
  lblIwant.Enabled = False
  txtRatioScale.Enabled = False
  cmdPrintNow(1).Enabled = False
End If

End Sub

Private Sub cmdPrintNow_Click(Index As Integer)

Select Case Index

'Fit map to page of the Windows default printer.
  Case 0
    frmMain.mapDisp.PrintMap "MyMap", "", optLand.Value
  
'Print map to scale.  Send to Windows default printer.
  Case 1
    Dim scalePrinter As New clsPTSobj  'Print-to-scale object
    Set scalePrinter.MapControl = frmMain.mapDisp
    scalePrinter.MapUnits = frmMain.strMapUnits
    If IsNumeric(txtRatioScale) Then
      scalePrinter.RatioScale = txtRatioScale.text
     Else
      MsgBox "Invalid ratio scale entered.", vbCritical, "Stop"
      Exit Sub
    End If
    scalePrinter.PrintNow
    
End Select

End Sub