有沒有辦法使用vba在MS-Access中截取屏幕截圖？

Question

我想使用vba截圖（然後將其作爲電子郵件附件發送）。理想情況下，我想截取活動表單的截圖。有沒有辦法做到這一點？

Answer 1

您必須使用Windows API調用來執行此操作。以下代碼在MS Access 2007中可用。它將保存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 

有一個Knowledge Base article進入更深入。

Answer 2

使用Raj的例子來獲取圖像，然後這個保存

Dim oPic 
On Error Resume Next 
Set oPic = Clipboard.GetData 
On Error GoTo 0 
If oPic Is Nothing Then 
    'no image in clipboard' 
Else 
    SavePicture oPic, "c:\temp\pic.bmp" 
end if