IE.EXECWB 6,2显示打印对话框.我如何打印此页面

Question

我在通过网页导航后正在尝试打印PDF。以下是代码：

Sub login()
Dim IE      As Object
Dim HTMLDoc As Object, HTMLDoc2 As Object
Dim objCollection As Object
Dim currentURL As String
Const navOpenInNewTab = &H800
Set IE = CreateObject("InternetExplorer.Application")
IE.Visible = True
IE.Navigate "url"
Do While IE.Busy Or IE.ReadyState <> 4: Loop
Set HTMLDoc = IE.document
'Application.Wait (Now + TimeValue("00:0:10"))
With HTMLDoc
    HTMLDoc.getElementById("userName").Value = "ABC"    'Entering credential
    HTMLDoc.getElementById("password").Value = "xyz"
End With
Application.Wait (Now + TimeValue("00:0:3"))
Set objCollection = IE.document.getElementById("submitButton")
objCollection.Click
Do While IE.Busy Or IE.ReadyState <> 4: Loop    ' opening the second webpage
Set HTMLDoc2 = IE.document
With HTMLDoc2
    IE.Navigate "URL"
End With
Application.Wait (Now + TimeValue("00:0:10"))
Do While IE.Busy Or IE.ReadyState <> 4: Loop
Set objCollection = IE.document.getElementById("menu_print")
objCollection.Click
Do While IE.Busy Or IE.ReadyState <> 4: Loop
Application.Wait (Now + TimeValue("00:0:03"))
With CreateObject("Shell.Application").Windows
    If .Count > 0 Then
        ' Get IE
        Set IE = .Item(1)    ' or .Item(.Count - 1) 'second tab
        IE.Navigate "URL"    'third webpage
        IE.ExecWB 6, 2
        'Application.CommandBars.ExecuteMso ("PrintPreviewAndPrint")
    End If
End With
End Sub

如何单击"打印对话框"上的"打印"按钮，或者如何在第三个网页上打印PDF，而无需单击或处理对话框。是否有直接命令在网页上打印PDF。

添加了" BLEOW代码"以查找"打印对话框"代码：

timeout = Now + TimeValue("00:00:04")
Do
hWnd = FindWindow(vbNullString, "Print") 'Finding the save as window
DoEvents
Sleep 200
Loop Until hWnd Or Now > timeout
  If hWnd Then
    SetForegroundWindow hWnd
    'Find the child DUIViewWndClassName window
   'hWnd = FindWindowEx(hWnd, 0, "DUIViewWndClassName", vbNullString)
    hWnd = FindWindowEx(hWnd, 0, "Button", "&Print") 'Finding the Print button on the window
    Sleep 600
  SendMessage hWnd, BM_CLICK, 0, 0
End If

代码是ableto查找"打印对话框"并将其设置在前景上。，但是，它找不到打印按钮。对于Findwindowex，它将HWND返回为零。

我的标题文件：

Option Explicit
Public Declare PtrSafe Sub Sleep Lib "kernel32" _
    (ByVal dwMilliseconds As Long)

Public Declare PtrSafe Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Public Declare PtrSafe Function FindWindowEx Lib "user32" _
                                  Alias "FindWindowExA" (ByVal hWnd1 As LongPtr, ByVal hWnd2 As LongPtr, _
                                  ByVal lpsz1 As String, ByVal lpsz2 As String) As LongPtr
Public Declare PtrSafe Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hWnd As LongPtr, ByVal wMsg As Long, _
                                                           ByVal wParam As LongPtr, lParam As Any) As LongPtr
Public Declare PtrSafe Function SetForegroundWindow Lib "user32" _
    (ByVal hWnd As Long) As LongPtr

Public Declare PtrSafe Function SendMessageByString Lib "user32" Alias "SendMessageA" _
    (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As String) As LongPtr

Public Declare PtrSafe Function PostMessage Lib "user32" Alias "PostMessageA" _
    (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As LongPtr

Public Declare PtrSafe Sub keybd_event Lib "user32" _
    (ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo As Long)

    Public Const BM_CLICK = &HF5
    Public Const WM_SETTEXT = &HC
    Public Const WM_GETTEXT = &HD
    Public Const WM_GETTEXTLENGTH = &HE
    Public Const VK_KEYDOWN = &H0
    Public Const VK_KEYUP = &H2
    Public Const VK_CONTROL = &H11

Answer 1

根据这篇文章，第二个参数控制着打印对话框的行为，因此：

IE.ExecWB 6, 1

应在不要求确认的情况下打印文档。

Answer 2

示例应在调用execwb命令后单击"打印"按钮。你大多在那里。看起来您如何调用API以及返回哪些数据（例如Long vs LongPtr）似乎存在问题。我添加了一些条件汇编条件，以根据平台指定正确的API调用。我的目的是工作（运行32位办公室）。

Option Explicit
Public Const BM_CLICK = &HF5
#If VBA7 Then
    Public Declare PtrSafe Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
    Public Declare PtrSafe Function FindWindow Lib "USER32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As LongPtr
    Public Declare PtrSafe Function FindWindowEx Lib "USER32" Alias "FindWindowExA" (ByVal hWnd1 As LongPtr, ByVal hWnd2 As LongPtr, ByVal lpsz1 As String, ByVal lpsz2 As String) As LongPtr
    Public Declare PtrSafe Function SendMessage Lib "USER32" Alias "SendMessageA" (ByVal hwnd As LongPtr, ByVal wMsg As Long, ByVal wParam As LongPtr, lParam As Any) As LongPtr
#Else
    Public Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
    Public Declare Function FindWindow Lib "USER32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
    Public Declare Function FindWindowEx Lib "USER32" Alias "FindWindowExA" (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long
    Public Declare Function SendMessage Lib "USER32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
#End If
Private Sub IEExample()
    Const readyState_Complete As Byte = 4
    Const printPage As Byte = 6
    Const dontPrompt = 1
    #If VBA7 Then
        Dim windowHWND As LongPtr
        Dim buttonHWND As LongPtr
    #Else
        Dim windowHWND As Long
        Dim buttonHWND As Long
    #End If
    With CreateObject("InternetExplorer.Application")
        .navigate "www.google.com"
        While .busy Or .readystate <> readyState_Complete: Wend
        .ExecWB printPage, dontPrompt
    End With
    windowHWND = getWindowPointer("Print", "#32770")
    If windowHWND > 0 Then
        'Add a small delay to allow the window to finish rendering if needed
        Sleep 250
        buttonHWND = FindWindowEx(windowHWND, 0, "Button", "&Print")
        If buttonHWND > 0 Then
            SendMessage buttonHWND, BM_CLICK, 0, 0
        Else
            Debug.Print "didn't find button!"
        End If
    End If
End Sub
Private Function getWindowPointer(WindowName As String, Optional ClassName As String = vbNullString) As Long
    Dim i As Byte
    #If VBA7 Then
        Dim hwnd As LongPtr
    #Else
        Dim hwnd As Long
    #End If
    'Wait for the window to exist then return the pointer
    For i = 1 To 100
        hwnd = FindWindow(ClassName, WindowName)
        If hwnd > 0 Then
            getWindowPointer = hwnd
            Exit For
        End If
        DoEvents
        Sleep 200
    Next
End Function