Using Win32 functions in Visual FoxPro Image Gallery
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Monitoring clipboard content changes (VFP9)

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Before you begin:
After a VFP form (ThisForm.hWnd) is added to the clipboard format listener list, it receives WM_CLIPBOARDUPDATE message whenever the contents of the clipboard changes.



See also:
  • Enumerating data formats currently available on the clipboard
  • How to disable the Windows Clipboard
  • Capturing keyboard activity of another application with the Raw Input API

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    5213 bytes  
    Created: 2015-01-27 10:13:38  
    Modified: 2015-03-23 16:32:49  
    Visits in 7 days: 250  
    Listed functions:
    AddClipboardFormatListener
    CallWindowProc
    CloseClipboard
    EnumClipboardFormats
    GetClipboardFormatName
    GetLastError
    GetWindowLong
    OpenClipboard
    RemoveClipboardFormatListener
    Printer friendly API declarations
    My comment:
    #define WM_CLIPBOARDUPDATE 0x031D

    See also:
    GetClipboardSequenceNumber
    The result returned by this API function increments whenever the content of the clipboard changes, including emptying the clipboard. For example, a single copy-paste operation in Excel, first clears the clipboard, and then adds data to it in N different formats. So before-and-after difference will be N+1.
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