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Thread: Create screenshot with macro

  1. #1

    Create screenshot with macro

    Hello all!

    I'm trying to create a macro which will automatically capture the screen when shortcut is pressed.
    What is really important, I need to have taskbar visible on the screenshot.

    I really found helpful code provided by Zack Barresse on this website (cannot post URL).

    However, in my case I have users with 2-3 monitors setup. I tried to work with WinAPI and combining different solutions found in internet got a solution.

    Option Explicit
    
    Private Type RECT
    Left As Long
    Top As Long
    Right As Long
    Bottom As Long
    End Type
    
    Private Type MONITORINFO
    cbSize As Long
    rcMonitor As RECT
    rcWork As RECT
    dwFlags As Long
    End Type
    
    Private Declare PtrSafe Function GetForegroundWindow Lib "user32" () As Long
    Private Declare PtrSafe Function GetMonitorInfo Lib "user32" Alias "GetMonitorInfoA" (ByVal hMonitor As Long, ByRef lpmi As MONITORINFO) As Long
    Private Declare PtrSafe Function MonitorFromWindow Lib "user32" (ByVal hwnd As Long, ByVal dwFlags As Long) As Long
    Private Declare PtrSafe Function EnumDisplayMonitors Lib "user32" (ByVal hdc As Long, ByVal lprcClip As Long, ByVal lpfnEnum As Long, ByVal dwData As Long) As Boolean
    Private Declare PtrSafe Function CreateCompatibleDC Lib "gdi32" (ByVal hdc As Long) As Long
    Private Declare PtrSafe Function CreateCompatibleBitmap Lib "gdi32" (ByVal hdc As Long, ByVal nWidth As Long, ByVal nHeight As Long) As Long
    Private Declare PtrSafe Function SelectObject Lib "gdi32" (ByVal hdc As Long, ByVal hObject As Long) As Long
    Private Declare PtrSafe Function BitBlt Lib "gdi32" (ByVal hdcDest As Long, ByVal nXDest As Long, ByVal nYDest As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hdcSrc As Long, ByVal nXSrc As Long, ByVal nYSrc As Long, ByVal dwRop As Long) As Long
    Private Declare PtrSafe Function DeleteObject Lib "gdi32" (ByVal hObject As Long) As Long
    Private Declare PtrSafe Function DeleteDC Lib "gdi32" (ByVal hdc As Long) As Long
    Private Declare PtrSafe Function CreateDC Lib "gdi32" Alias "CreateDCA" (ByVal lpDriverName As String, ByVal lpDeviceName As String, ByVal lpOutput As String, ByVal lpInitData As Long) As Long
    Private Declare PtrSafe Function OpenClipboard Lib "user32" (ByVal hwnd As Long) As Long
    Private Declare PtrSafe Function EmptyClipboard Lib "user32" () As Long
    Private Declare PtrSafe Function SetClipboardData Lib "user32" (ByVal wFormat As Long, ByVal hMem As Long) As Long
    Private Declare PtrSafe Function CloseClipboard Lib "user32" () As Long
    Private Declare PtrSafe Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Long, ByVal dwBytes As Long) As Long
    Private Declare PtrSafe Function GlobalLock Lib "kernel32" (ByVal hMem As Long) As Long
    Private Declare PtrSafe Function GlobalUnlock Lib "kernel32" (ByVal hMem As Long) As Long
    Private Declare Function GetObject Lib "gdi32" Alias "GetObjectA" (ByVal hObject As Long, ByVal nCount As Long, lpObject As Any) As Long
    
    Private Const MONITOR_DEFAULTTOPRIMARY = &H1
    Private Const MONITOR_DEFAULTTONEAREST = &H2
    Private Const CF_BITMAP = 2
    
    Sub GetActiveWindowMonitorBitmap()
        Dim hwnd As Long
        Dim hMonitor As Long
        Dim mi As MONITORINFO
        Dim hDCScreen As Long
        Dim hDCMem As Long
        Dim hBitmap As Long
        Dim hPrevBitmap As Long
        Dim ret As Long
        Dim hData As Long
        
        ' Get the handle of the active window
        hwnd = GetForegroundWindow()
        
        ' Get the handle of the monitor containing the active window
        hMonitor = MonitorFromWindow(hwnd, MONITOR_DEFAULTTONEAREST)
        
        ' Initialize the structure's size
        mi.cbSize = Len(mi)
        
        ' Get monitor information
        ret = GetMonitorInfo(hMonitor, mi)
        
        ' Check if successful
        If ret <> 0 Then
            ' Create a compatible DC for the screen
            hDCScreen = CreateDC("DISPLAY", vbNullString, vbNullString, ByVal 0&)
            If hDCScreen <> 0 Then
                ' Create a compatible DC for the bitmap
                hDCMem = CreateCompatibleDC(hDCScreen)
                If hDCMem <> 0 Then
                    ' Create a compatible bitmap
                    hBitmap = CreateCompatibleBitmap(hDCScreen, mi.rcMonitor.Right - mi.rcMonitor.Left, mi.rcMonitor.Bottom - mi.rcMonitor.Top)
                    If hBitmap <> 0 Then
                        ' Select the bitmap into the memory DC
                        hPrevBitmap = SelectObject(hDCMem, hBitmap)
                        ' Copy the screen to the bitmap
                        ret = BitBlt(hDCMem, 0, 0, mi.rcMonitor.Right - mi.rcMonitor.Left, mi.rcMonitor.Bottom - mi.rcMonitor.Top, hDCScreen, mi.rcMonitor.Left, mi.rcMonitor.Top, &HCC0020)
                        ' Open the clipboard
                        ret = OpenClipboard(0)
                        If ret <> 0 Then
                            ' Empty the clipboard
                            EmptyClipboard
                            ' Set the bitmap data to clipboard
                            ret = SetClipboardData(CF_BITMAP, hBitmap)
                            ' Close the clipboard
                            ret = CloseClipboard
                        End If
                        ' Clean up
                        DeleteObject hBitmap
                    Else
                        MsgBox "Failed to create bitmap."
                    End If
                    ' Clean up
                    DeleteDC hDCMem
                Else
                    MsgBox "Failed to create compatible DC for bitmap."
                End If
                ' Clean up
                DeleteDC hDCScreen
            Else
                MsgBox "Failed to create DC for the screen."
            End If
        Else
            MsgBox "Failed to get monitor information."
        End If
    End Sub
    
    Sub CaptureScreens()
        ' Loop through each monitor
        EnumDisplayMonitors 0, 0, AddressOf EnumMonitorsProc, 0
    End Sub
    
    Function EnumMonitorsProc(ByVal hMonitor As Long, ByVal hdcMonitor As Long, ByVal lprcMonitor As Long, ByVal dwData As Long) As Boolean
        Dim mi As MONITORINFO
        Dim hDCScreen As Long
        Dim hDCMem As Long
        Dim hBitmap As Long
        Dim hPrevBitmap As Long
        Dim ret As Long
        ' Initialize the structure's size
        mi.cbSize = Len(mi)
        ' Get monitor information
        ret = GetMonitorInfo(hMonitor, mi)
        ' Check if successful
        If ret <> 0 Then
            ' Create a compatible DC for the screen
            hDCScreen = CreateDC("DISPLAY", vbNullString, vbNullString, ByVal 0&)
            If hDCScreen <> 0 Then
                ' Create a compatible DC for the bitmap
                hDCMem = CreateCompatibleDC(hDCScreen)
                If hDCMem <> 0 Then
                    ' Create a compatible bitmap
                    hBitmap = CreateCompatibleBitmap(hDCScreen, mi.rcMonitor.Right - mi.rcMonitor.Left, mi.rcMonitor.Bottom - mi.rcMonitor.Top)
                    If hBitmap <> 0 Then
                        ' Select the bitmap into the memory DC
                        hPrevBitmap = SelectObject(hDCMem, hBitmap)
                        ' Copy the screen to the bitmap
                        ret = BitBlt(hDCMem, 0, 0, mi.rcMonitor.Right - mi.rcMonitor.Left, mi.rcMonitor.Bottom - mi.rcMonitor.Top, hDCScreen, mi.rcMonitor.Left, mi.rcMonitor.Top, &HCC0020)
                        ' Open the clipboard
                        ret = OpenClipboard(0)
                        If ret <> 0 Then
                            ' Empty the clipboard
                            EmptyClipboard
                            ' Set the bitmap data to clipboard
                            ret = SetClipboardData(CF_BITMAP, hBitmap)
                            ' Close the clipboard
                            ret = CloseClipboard
                        End If
                        ' Clean up
                        DeleteObject hBitmap
                    Else
                        MsgBox "Failed to create bitmap."
                    End If
                    ' Clean up
                    DeleteDC hDCMem
                Else
                    MsgBox "Failed to create compatible DC for bitmap."
                End If
                ' Clean up
                DeleteDC hDCScreen
            Else
                MsgBox "Failed to create DC for the screen."
            End If
        Else
            MsgBox "Failed to get monitor information."
        End If
        ' Continue enumeration
        EnumMonitorsProc = True
    End Function
    The problem appears when I use laptop+monitor setup: screenshot from laptop monitor is perfect, but screenshot from secondary monitor is larger than the screen and has black areas around the screenshot.

    Do you guys any thoughts on this? Cool if you have a ready solution, but i'll be thankful for just any ideas in what direction I should think or for a proper algorithm.

  2. #2
    Moderator VBAX Wizard Aussiebear's Avatar
    Joined
    Dec 2005
    Location
    Queensland
    Posts
    5,232
    Location
    Welcome to VBAX NickVasiliev. You didn't by any chance post this elsewhere did you?
    Remember To Do the Following....
    Use [Code].... [/Code] tags when posting code to the thread.
    Mark your thread as Solved if satisfied by using the Thread Tools options.
    If posting the same issue to another forum please show the link

  3. #3
    Thanks Aussiebear!
    Yes, so sorry for not letting know.
    crosposted here: https://www.excelforum.com/excel-pro...ml#post5938036

  4. #4
    this code i used on screenshot.
    to create a screenshot (full screen) and save to disk (sample):

    SaveClip2Bit environ$("userprofile") & "\documents\agp.bmp"

    you can try if it will work on multiple monitor.

    ' https://access-programmers.co.uk/forums/showthread.php?t=245198
    ' pr2-eugin
    '***********************************************************************************************
    '   * Please leave any Trademarks or Credits in place.
    '   *
    '   * ACKNOWLEDGEMENT TO CONTRIBUTORS :
    '   *       STEPHEN BULLEN, 15 November 1998 - Original PastPicture code
    '   *       G HUDSON, 5 April 2010 - Pause Function
    '   *       LUTZ GENTKOW, 23 July 2011 - Alt + PrtScrn
    '   *       PAUL FRANCIS, 11 April 2013 - Putting all pieces together, bridging the 32 bit and 64 bit version.
    '   *       CHRIS O, 12 April 2013 - Code suggestion to work on older versions of Access.
    '   *
    '   * DESCRIPTION: Creates a standard Picture object from whatever is on the clipboard.
    '   *              This object is then saved to a location on the disc. Please note, this
    '   *              can also be assigned to (for example) and Image control on a userform.
    '   *
    '   * The code requires a reference to the "OLE Automation" type library.
    '   *
    '   * The code in this module has been derived from a number of sources
    '   * discovered on MSDN, Access World Forum, VBForums.
    '   *
    '   * To use it, just copy this module into your project, then you can use:
    '   * SaveClip2Bit("C:\Pics\Sample.bmp")
    '   * to save this to a location on the Disc.
    '   * (Or)
    '   * Set ImageControl.Image = PastePicture
    '   * to paste a picture of whatever is on the clipboard into a standard image control.
    '   *
    '   * PROCEDURES:
    '   *   PastePicture  :   The entry point for 'Setting' the Image
    '   *   CreatePicture :   Private function to convert a bitmap or metafile handle to an OLE reference
    '   *   fnOLEError    :   Get the error text for an OLE error code
    '   *   SaveClip2Bit  :   The entry point for 'Saving' the Image, calls for PastePicture
    '   *   AltPrintScreen:   Performs the automation of Alt + PrtScrn, for getting the Active Window.
    '   *   Pause         :   Makes the program wait, to make sure proper screen capture takes place.
    '**************************************************************************************************
    '
    ' revised by arnelgp
    '
    ' take snapshot of entire screen        (SaveScreen2Bit) <==
    ' take snapshot of current window/form  (SaveClip2Bit)   <== Overlapping window (mode) for tabbed form that's another but i have it also
    '
    Option Explicit
     
    '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
    #If VBA7 Then
    Private Type uPicDesc
        Size As Long
        Type As Long
        hPic As LongPtr
        hPal As LongPtr
    End Type
    #Else
    Private Type uPicDesc
        Size As Long
        Type As Long
        hPic As Long
        hPal As Long
    End Type
    #End If
    'Windows API Function Declarations
    #If VBA7 Then
         
        'Does the clipboard contain a bitmap/metafile?
        Private Declare PtrSafe Function IsClipboardFormatAvailable Lib "user32" (ByVal wFormat As Long) As Long
         
        'Open the clipboard to read
        Private Declare PtrSafe Function OpenClipboard Lib "user32" (ByVal hWnd As LongPtr) As Long
         
        'Get a pointer to the bitmap/metafile
        Private Declare PtrSafe Function GetClipboardData Lib "user32" (ByVal wFormat As Long) As LongPtr
         
        'Close the clipboard
        Private Declare PtrSafe Function CloseClipboard Lib "user32" () As Long
         
        'Convert the handle into an OLE IPicture interface.
        Private Declare PtrSafe Function OleCreatePictureIndirect Lib "oleaut32.dll" (PicDesc As uPicDesc, RefIID As GUID, ByVal fPictureOwnsHandle As LongPtr, IPic As IPicture) As LongPtr
         
        '*Create our own copy of the metafile, so it doesn't get wiped out by subsequent clipboard updates.
        'public before
        Private Declare PtrSafe Function CopyEnhMetaFile Lib "Gdi32" Alias "CopyEnhMetaFileA" (ByVal hemfSrc As LongPtr, ByVal lpszFile As String) As LongPtr
         
        'Create our own copy of the bitmap, so it doesn't get wiped out by subsequent clipboard updates.
        'public before
        Private Declare PtrSafe Function CopyImage Lib "user32" (ByVal handle As LongPtr, ByVal un1 As Long, ByVal n1 As Long, ByVal n2 As Long, ByVal un2 As Long) As LongPtr
         
        'Uses the Keyboard simulation
        Private Declare PtrSafe Sub keybd_event Lib "user32" (ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwflags As Long, ByVal dwExtraInfo As LongPtr)
     
    #Else
     
        'Does the clipboard contain a bitmap/metafile?
        Private Declare Function IsClipboardFormatAvailable Lib "user32" (ByVal wFormat As Integer) As Long
         
        'Open the clipboard to read
        Private Declare Function OpenClipboard Lib "user32" (ByVal hwnd As Long) As Long
         
        'Get a pointer to the bitmap/metafile
        Private Declare Function GetClipboardData Lib "user32" (ByVal wFormat As Integer) As Long
         
        'Close the clipboard
        Private Declare Function CloseClipboard Lib "user32" () As Long
         
        'Convert the handle into an OLE IPicture interface.
        Private Declare Function OleCreatePictureIndirect Lib "oleaut32.dll" (PicDesc As uPicDesc, RefIID As GUID, ByVal fPictureOwnsHandle As Long, IPic As IPicture) As Long
         
        'Create our own copy of the metafile, so it doesn't get wiped out by subsequent clipboard updates.
        private Declare Function CopyEnhMetaFile Lib "gdi32" Alias "CopyEnhMetaFileA" (ByVal hemfSrc As Long, ByVal lpszFile As String) As Long
         
        'Create our own copy of the bitmap, so it doesn't get wiped out by subsequent clipboard updates.
        private Declare Function CopyImage Lib "user32" (ByVal handle As Long, ByVal un1 As Long, ByVal n1 As Long, ByVal n2 As Long, ByVal un2 As Long) As Long
         
        'Uses the Keyboard simulation
        Private Declare Sub keybd_event Lib "user32" (ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwflags As Long, ByVal dwExtraInfo As Long)
     
    #End If
       
    'The API format types we're interested in
    Const CF_BITMAP = 2&
    Const CF_PALETTE = 9&
    Const CF_ENHMETAFILE = 14&
    Const IMAGE_BITMAP = 0&
    Const LR_COPYRETURNORG = &H4
     
    Private Const KEYEVENTF_KEYUP = &H2
    Private Const VK_SNAPSHOT = &H2C
    Private Const VK_MENU = &H12
     
    ' Subroutine    :   PrintScreen
    ' Purpose       :   Capture screen and places on the Clipboard
    '               :   arnel g. puzon
    Sub PrintScreen()
        'keybd_event VK_SNAPSHOT, 1, 0, 0
        keybd_event VK_SNAPSHOT, 0, 0, 0
    End Sub
    
    ' Subroutine    : AltPrintScreen
    ' Purpose       : Capture the Active window, and places on the Clipboard.
    Sub AltPrintScreen()
        keybd_event VK_MENU, 0, 0, 0
        keybd_event VK_SNAPSHOT, 0, 0, 0
        keybd_event VK_SNAPSHOT, 0, KEYEVENTF_KEYUP, 0
        keybd_event VK_MENU, 0, KEYEVENTF_KEYUP, 0
    End Sub
     
    ' Subroutine    : PastePicture
    ' Purpose       : Get a Picture object showing whatever's on the clipboard.
     
    Function PastePicture() As IPicture
        'Some pointers
    #If VBA7 Then
        Dim h As LongPtr, hPtr As LongPtr, hPal As LongPtr, lPicType As Long, hCopy As LongPtr
    #Else
        Dim h As Long, hPtr As Long, hPal As Long, lPicType As Long, hCopy As Long
    #End If
        'Check if the clipboard contains the required format
        'If IsClipboardFormatAvailable(CF_BITMAP) Then
            'Get access to the clipboard
            h = OpenClipboard(0&)
            If h > 0 Then
                'Get a handle to the image data
                hPtr = GetClipboardData(CF_BITMAP)
     
                hCopy = CopyImage(hPtr, IMAGE_BITMAP, 0, 0, LR_COPYRETURNORG)
     
                'Release the clipboard to other programs
                h = CloseClipboard
                'If we got a handle to the image, convert it into a Picture object and return it
                If hPtr <> 0 Then Set PastePicture = CreatePicture(hCopy, 0, CF_BITMAP)
            End If
        'End If
    End Function
     
     
    ' Subroutine    : CreatePicture
    ' Purpose       : Converts a image (and palette) handle into a Picture object.
    ' NOTE          : Requires a reference to the "OLE Automation" type library
    #If VBA7 Then
    Private Function CreatePicture(ByVal hPic As LongPtr, ByVal hPal As LongPtr, ByVal lPicType) As IPicture
    #Else
    Private Function CreatePicture(ByVal hPic As Long, ByVal hPal As Long, ByVal lPicType) As IPicture
    #End If
        ' IPicture requires a reference to "OLE Automation"
    #If VBA7 Then
    Dim r As LongPtr
    #Else
    Dim r As Long
    #End If
        Dim uPicInfo As uPicDesc, IID_IDispatch As GUID, IPic As IPicture
        'OLE Picture types
        Const PICTYPE_BITMAP = 1
        Const PICTYPE_ENHMETAFILE = 4
        ' Create the Interface GUID (for the IPicture interface)
        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 = hPic ' Handle to image.
            .hPal = hPal ' Handle to palette (if bitmap).
        End With
     
        ' Create the Picture object.
        r = OleCreatePictureIndirect(uPicInfo, IID_IDispatch, True, IPic)
     
        ' If an error occurred, show the description
        If r <> 0 Then Debug.Print "Create Picture: " & fnOLEError(r)
     
        ' Return the new Picture object.
        Set CreatePicture = IPic
    End Function
     
     
    ' Subroutine    : fnOLEError
    ' Purpose       : Gets the message text for standard OLE errors
    #If VBA7 Then
    Private Function fnOLEError(lErrNum As LongPtr) As String
    #Else
    Private Function fnOLEError(lErrNum As Long) As String
    #End If
        'OLECreatePictureIndirect return values
        Const E_ABORT = &H80004004
        Const E_ACCESSDENIED = &H80070005
        Const E_FAIL = &H80004005
        Const E_Handle = &H80070006
        Const E_INVALIDARG = &H80070057
        Const E_NOINTERFACE = &H80004002
        Const E_NOTIMPL = &H80004001
        Const E_OUTOFMEMORY = &H8007000E
        Const E_POINTER = &H80004003
        Const E_UNEXPECTED = &H8000FFFF
        Const S_OK = &H0
     
        Select Case CLng(lErrNum)
            Case E_ABORT
                fnOLEError = " Aborted"
            Case E_ACCESSDENIED
                fnOLEError = " Access Denied"
            Case E_FAIL
                fnOLEError = " General Failure"
            Case E_Handle
                fnOLEError = " Bad/Missing Handle"
            Case E_INVALIDARG
                fnOLEError = " Invalid Argument"
            Case E_NOINTERFACE
                fnOLEError = " No Interface"
            Case E_NOTIMPL
                fnOLEError = " Not Implemented"
            Case E_OUTOFMEMORY
                fnOLEError = " Out of Memory"
            Case E_POINTER
                fnOLEError = " Invalid Pointer"
            Case E_UNEXPECTED
                fnOLEError = " Unknown Error"
            Case S_OK
                fnOLEError = " Success!"
        End Select
    End Function
     
    ' Routine   : SaveClip2Bit
    ' Purpose   : Saves Picture object to desired location.
    ' Arguments : Path to save the file
     
    Public Sub SaveClip2Bit(savePath As String)
    On Error GoTo errHandler:
        AltPrintScreen
        Pause (3)
        SavePicture PastePicture, savePath
    errExit:
            Exit Sub
    errHandler:
        Debug.Print "Save Picture: (" & Err.Number & ") - " & Err.Description
        Resume errExit
    End Sub
     
    ' Routine   : Pause
    ' Purpose   : Gives a short interval for proper image capture.
    ' Arguments : Seconds to wait.
     
    Private Function Pause(NumberOfSeconds As Variant)
    On Error GoTo Err_Pause
        Dim PauseTime As Variant, Start As Variant
        PauseTime = NumberOfSeconds
        Start = Timer
        Do While Timer < Start + PauseTime
            DoEvents
        Loop
    Exit_Pause:
        Exit Function
    Err_Pause:
        MsgBox Err.Number & " - " & Err.Description, vbCritical, "Pause()"
        Resume Exit_Pause
    End Function
    
    ' arnel g. puzon
    Public Sub SaveScreen2Bit(savePath As String)
    On Error GoTo errHandler:
        PrintScreen
        Pause (3)
        SavePicture PastePicture, savePath
    errExit:
            Exit Sub
    errHandler:
        Debug.Print "Save Picture: (" & Err.Number & ") - " & Err.Description
        Resume errExit
    End Sub

  5. #5
    snb
    Guest
    This suffices in Excel:
    Adapt the Irfanview path: "F:\Irfanview"
    Adapt the save path: "G:\OF"

    Sub M_snb()
       Application.CommandBars.ExecuteMso "ScreenClipping"
       ActiveSheet.Shapes(1).CopyPicture
       
       c00 = "F:\Irfanview\"
       Shell c00 & Dir(c00 & "i_view*.exe") & " /clippaste /convert=G:\OF\pict.png", 0
    End Sub

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