For example to read an image data that was previously copied to the clipboard: const img = document.
The Clipboard API also provides a distinct read() method, which is used to read arbitrary data rather than plain text, and it works similarly to the previous readText() function, but can read arbitrary data. This does assume that the richTextInputId element supports rich text itself. The whole process can be simplified down to a button (or other element) that triggers the code! You could also do this on the page load, but it's generally advisable to be conservative when it comes to interfacing automatically with the user and performing actions that affect their local machine (like adding something to the clipboard): Copy function copyToClipboard( ) ) Īwait () Inserts a copy of the data into the document. Retrieves the handle to the data in the selected format by calling the GetClipboardData function. Determines which of the available clipboard formats to retrieve. '- junk = BitBlt(hdcMem, 0, 0, fwidth, fheight, hdc, rect.left, _ rect.top, SRCCOPY) '- ' Set up the Clipboard and copy bitmap '- junk = OpenClipboard(DeskHwnd) junk = Empt圜lipboard() junk = SetClipboardData(CF_BITMAP, hBitmap) junk = CloseClipboard() End If '- ' Clean up handles '- junk = DeleteDC(hdcMem) junk = ReleaseDC(DeskHwnd, hdc) DoCmd.Note: Unless you're on localhost, the new Clipboard API will only work if your website is hosted over a secure domain ( HTTPS). Private Declare PtrSafe Function GetClipboardData Lib 'user32' (ByVal wFormat As Integer) As Long. This function does the following: Opens the clipboard by calling the OpenClipboard function.
#Getclipboarddata copyimage windows
Declare Function GetActiveWindow Lib "User32" () As Long Declare Function GetDesktopWindow Lib "User32" () As Long Declare Sub GetWindowRect Lib "User32" (ByVal hwnd As Long, _ lpRect As RECT_Type) Declare Function GetDC Lib "User32" (ByVal hwnd As Long) As Long Declare Function CreateCompatibleDC Lib "Gdi32" (ByVal hdc As Long) _ As Long Declare Function CreateCompatibleBitmap Lib "Gdi32" (ByVal hdc _ As Long, ByVal nWidth As Long, _ ByVal nHeight As Long) As Long Declare Function SelectObject Lib "Gdi32" (ByVal hdc As Long, _ ByVal hObject As Long) As Long Declare Function BitBlt Lib "Gdi32" (ByVal hDestDC As Long, _ ByVal X As Long, ByVal Y _ As Long, ByVal nWidth As Long, _ ByVal nHeight As Long, _ ByVal hSrcDC As Long, _ ByVal XSrc As Long, _ ByVal YSrc As Long, _ ByVal dwRop As Long) As Long Declare Function OpenClipboard Lib "User32" (ByVal hwnd As Long) As Long Declare Function Empt圜lipboard Lib "User32" () As Long Declare Function SetClipboardData Lib "User32" (ByVal wFormat As Long, _ ByVal hMem As Long) As Long Declare Function CloseClipboard Lib "User32" () As Long Declare Function ReleaseDC Lib "User32" (ByVal hwnd As Long, _ ByVal hdc As Long) As Long Declare Function DeleteDC Lib "Gdi32" (ByVal hdc As Long) As Long Global Const SRCCOPY = &HCC0020 Global Const CF_BITMAP = 2 Function ScreenDump() Dim AccessHwnd As Long, DeskHwnd As Long Dim hdc As Long Dim hdcMem As Long Dim rect As RECT_Type Dim junk As Long Dim fwidth As Long, fheight As Long Dim hBitmap As Long DoCmd.Hourglass True '- ' Get window handle to Windows and Microsoft Access '- DeskHwnd = GetDesktopWindow() AccessHwnd = GetActiveWindow() '- ' Get screen coordinates of Microsoft Access '- Call GetWindowRect(AccessHwnd, rect) fwidth = rect.right - rect.left fheight = rect.bottom - rect.top '- ' Get the device context of Desktop and allocate memory '- hdc = GetDC(DeskHwnd) hdcMem = CreateCompatibleDC(hdc) hBitmap = CreateCompatibleBitmap(hdc, fwidth, fheight) If hBitmap 0 Then junk = SelectObject(hdcMem, hBitmap) '- ' Copy the Desktop bitmap to memory location ' based on Microsoft Access coordinates. Option Compare Database Option Explicit Type RECT_Type left As Long top As Long right As Long bottom As Long End Type 'The following declare statements are case sensitive.
#Getclipboarddata copyimage how to
Hopefully very easy: how to I get from there, to saving the data to file as an image? I've got a image saved to the clipboard by emulating PRINTSCREEN using the below code.
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