ms-access - 有没有办法用vba在MS-Access中截取屏幕截图？

Question

我想使用 vba 截取屏幕截图(然后将其作为电子邮件附件发送)。理想情况下，我只想截取事件表单的屏幕截图。有什么办法可以做到这一点吗？

Answer 1

您必须使用 Windows API 调用来执行此操作。以下代码适用于 MS Access 2007。它将保存 BMP 文件。

Option Compare Database
Option Explicit

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

Private Const VK_SNAPSHOT = &H2C

Private Declare Function OpenClipboard Lib "user32" (ByVal hwnd As Long) As Long

Private Declare Function GetClipboardData Lib "user32" (ByVal wFormat As Integer) As Long

Private Declare Function CloseClipboard Lib "user32" () As Long

Private Declare Function OleCreatePictureIndirect Lib "olepro32.dll" _
(PicDesc As uPicDesc, RefIID As GUID, ByVal fPictureOwnsHandle As Long, _
IPic As IPicture) As Long

'\\ Declare a UDT to store a GUID for the IPicture OLE Interface
Private Type GUID
    Data1 As Long
    Data2 As Integer
    Data3 As Integer
    Data4(0 To 7) As Byte
End Type

'\\ Declare a UDT to store the bitmap information
Private Type uPicDesc
    Size As Long
    Type As Long
    hPic As Long
    hPal As Long
End Type

Private Const CF_BITMAP = 2
Private Const PICTYPE_BITMAP = 1

Sub PrintScreen()
    keybd_event VK_SNAPSHOT, 1, 0, 0
End Sub

Public Sub MyPrintScreen(FilePathName As String)

    Call PrintScreen

    Dim IID_IDispatch As GUID
    Dim uPicinfo As uPicDesc
    Dim IPic As IPicture
    Dim hPtr As Long

    OpenClipboard 0
    hPtr = GetClipboardData(CF_BITMAP)
    CloseClipboard

    '\\ Create the interface GUID for the picture
    With IID_IDispatch
        .Data1 = &H7BF80980
        .Data2 = &HBF32
        .Data3 = &H101A
        .Data4(0) = &H8B
        .Data4(1) = &HBB
        .Data4(2) = &H0
        .Data4(3) = &HAA
        .Data4(4) = &H0
        .Data4(5) = &H30
        .Data4(6) = &HC
        .Data4(7) = &HAB
    End With

    '\\ Fill uPicInfo with necessary parts.
    With uPicinfo
        .Size = Len(uPicinfo) '\\ Length of structure.
        .Type = PICTYPE_BITMAP '\\ Type of Picture
        .hPic = hPtr '\\ Handle to image.
        .hPal = 0 '\\ Handle to palette (if bitmap).
    End With

   '\\ Create the Range Picture Object
   OleCreatePictureIndirect uPicinfo, IID_IDispatch, True, IPic

    '\\ Save Picture Object
    stdole.SavePicture IPic, FilePathName

End Sub