public void Uninstall()
{
if (!ClipboardApi.RemoveClipboardFormatListener(windowHandle))
{
throw new InvalidOperationException("Could not uninstall a clipboard hook for the main window.");
}
}
public void Install(IntPtr windowHandle)
{
this.windowHandle = windowHandle;
if (!ClipboardApi.AddClipboardFormatListener(windowHandle))
{
throw GenerateInstallFailureException();
}
}
static Exception GenerateInstallFailureException()
{
var errorCode = Marshal.GetLastWin32Error();
var existingOwner = ClipboardApi.GetClipboardOwner();
var ownerTitle = WindowApi.GetWindowTitle(existingOwner);
return(new InvalidOperationException($"Could not install a clipboard hook for the main window. The window '{ownerTitle}' currently owns the clipboard. The last error code was {errorCode}."));
}
/// <summary>
/// Destroy all mouse event
/// </summary>
private void DestroyKeyboardMouseEvent()
{
if (_nextClipboardViewer != null)
{
// Set clipboard event to default
ClipboardApi.ChangeClipboardChain(this.Handle, _nextClipboardViewer);
}
_jKeyboardMouseEvents.MouseDoubleClick -= MouseTranslateEvent;
_jKeyboardMouseEvents.MouseDragFinished -= MouseTranslateEvent;
_jKeyboardMouseEvents.Dispose();
}
public void InjectData(IClipboardDataPackage package)
{
clipboardCopyInterceptor.SkipNext();
using (clipboardHandleFactory.StartNewSession())
{
ClipboardApi.EmptyClipboard();
InjectPackageContents(package);
}
logger.Information("Clipboard package has been injected to the clipboard.", 1);
}
IEnumerable <string> GetFilesCopiedFromRawData(byte[] data)
{
var files = new List <string>();
using (var memoryHandle = memoryHandleFactory.AllocateInMemory(data))
{
var count = ClipboardApi.DragQueryFile(memoryHandle.Pointer, 0xFFFFFFFF, null, 0);
FetchFilesFromMemory(files, memoryHandle, count);
}
return(files);
}
void HandleClipboardUpdateWindowMessage()
{
var clipboardItemIdentifier = ClipboardApi.GetClipboardSequenceNumber();
logger.Information($"Clipboard update message received with sequence #{clipboardItemIdentifier}.", 1);
if (clipboardItemIdentifier != lastClipboardItemIdentifier)
{
lastClipboardItemIdentifier = clipboardItemIdentifier;
TriggerDataCopiedEvent();
}
}
static void FetchFilesFromMemory(List <string> files, IMemoryHandle memoryHandle, int count)
{
for (var i = 0u; i < count; i++)
{
var length = ClipboardApi.DragQueryFile(memoryHandle.Pointer, i, null, 0);
var filenameBuilder = new StringBuilder(length);
length = ClipboardApi.DragQueryFile(memoryHandle.Pointer, i, filenameBuilder, length + 1);
var fileName = filenameBuilder.ToString();
files.Add(fileName);
}
}
private void InitFormEvent()
{
_jKeyboardMouseEvents = Hook.GlobalEvents();
// Key event
_jKeyboardMouseEvents.KeyDown += TranslateKeyDown;
// Mouse event
_jKeyboardMouseEvents.MouseDragFinished += MouseTranslateEvent;
_jKeyboardMouseEvents.MouseDoubleClick += MouseTranslateEvent;
// ClipboardEvent
_nextClipboardViewer = (IntPtr)ClipboardApi.SetClipboardViewer((int)this.Handle);
}
public IClipboardDataControlPackage Create()
{
using (clipboardSessionFactory.StartNewSession())
{
var formats = ClipboardApi.GetClipboardFormats();
if (IsAnyFormatSupported(formats))
{
return(ConstructPackage(formats));
}
else
{
return(null);
}
}
}
public byte[] UnwrapStructure(uint format)
{
//TODO: it is very sad that we invoke System.Drawing here to get the job done. probably not very optimal.
var bitmapVersionFivePointer = ClipboardApi.GetClipboardData(ClipboardApi.CF_DIBV5);
var bitmapVersionFiveHeader = (BITMAPV5HEADER)Marshal.PtrToStructure(bitmapVersionFivePointer, typeof(BITMAPV5HEADER));
if (bitmapVersionFiveHeader.bV5Compression == BI_RGB)
{
var bitmapVersionOneBytes = ClipboardApi.GetClipboardDataBytes(ClipboardApi.CF_DIB);
var bitmapVersionOneHeader = GeneralApi.ByteArrayToStructure <BITMAPINFOHEADER>(bitmapVersionOneBytes);
return(HandleBitmapVersionOne(bitmapVersionOneBytes, bitmapVersionOneHeader));
}
else
{
return(HandleBitmapVersionFive(bitmapVersionFivePointer, bitmapVersionFiveHeader));
}
}
/// <summary>
/// Empty the Clipboard and Restore to system clipboard data contained in a collection of ClipData objects
/// </summary>
/// <param name="clipData">The collection of ClipData containing data stored from clipboard</param>
/// <returns></returns>
public static bool SetClipboard(ReadOnlyCollection <ClipboardData> clipData)
{
//Open clipboard to allow its manipultaion
if (!ClipboardApi.OpenClipboard(IntPtr.Zero))
{
return(false);
}
//Clear the clipboard
EmptyClipboard();
//Get an Enumerator to iterate into each ClipData contained into the collection
IEnumerator <ClipboardData> cData = clipData.GetEnumerator();
while (cData.MoveNext())
{
ClipboardData cd = cData.Current;
//Get the pointer for inserting the buffer data into the clipboard
IntPtr alloc = MemoryApi.GlobalAlloc(MemoryApi.GMEM_MOVEABLE | MemoryApi.GMEM_DDESHARE, cd.Size);
IntPtr gLock = MemoryApi.GlobalLock(alloc);
//Clopy the buffer of the ClipData into the clipboard
if ((int)cd.Size > 0)
{
Marshal.Copy(cd.Buffer, 0, gLock, cd.Buffer.GetLength(0));
}
else
{
}
//Release pointers
MemoryApi.GlobalUnlock(alloc);
ClipboardApi.SetClipboardData(cd.Format, alloc);
}
;
//Close the clipboard to realese unused resources
ClipboardApi.CloseClipboard();
return(true);
}
void InjectClipboardData(IClipboardData clipboardData)
{
using (var memoryHandle = memoryHandleFactory.AllocateInMemory(clipboardData.RawData))
{
var globalPointer = AllocateInMemory(clipboardData);
var target = GeneralApi.GlobalLock(globalPointer);
if (target == IntPtr.Zero)
{
throw new InvalidOperationException("Could not allocate memory.");
}
GeneralApi.CopyMemory(target, memoryHandle.Pointer, (uint)clipboardData.RawData.Length);
GeneralApi.GlobalUnlock(target);
if (ClipboardApi.SetClipboardData(clipboardData.RawFormat, globalPointer) == IntPtr.Zero)
{
GeneralApi.GlobalFree(globalPointer);
throw new Exception("Could not set clipboard data.");
}
}
}
public void Dispose()
{
ClipboardApi.CloseClipboard();
}
public byte[] UnwrapStructure(uint format)
{
return(ClipboardApi.GetClipboardDataBytes(format));
}
public static bool EmptyClipboard()
{
return(ClipboardApi.EmptyClipboard());
}
/// <summary>
/// Convert to a DataClip collection all data present in the clipboard
/// </summary>
/// <returns></returns>
public static ReadOnlyCollection <ClipboardData> GetClipboard()
{
//Init a list of ClipData, which will contain each Clipboard Data
List <ClipboardData> clipData = new List <ClipboardData>();
//Open Clipboard to allow us to read from it
if (!ClipboardApi.OpenClipboard(IntPtr.Zero))
{
return(new ReadOnlyCollection <ClipboardData>(clipData));
}
//Loop for each clipboard data type
uint format = 0;
while ((format = ClipboardApi.EnumClipboardFormats(format)) != 0)
{
//Check if clipboard data type is recognized, and get its name
string formatName = "0";
if (format > 14)
{
StringBuilder res = new StringBuilder();
if (ClipboardApi.GetClipboardFormatName(format, res, 100) > 0)
{
formatName = res.ToString();
}
}
//Get the pointer for the current Clipboard Data
IntPtr pos = ClipboardApi.GetClipboardData(format);
//Goto next if it's unreachable
if (pos == IntPtr.Zero)
{
continue;
}
//Get the clipboard buffer data properties
UIntPtr lenght = MemoryApi.GlobalSize(pos);
IntPtr gLock = MemoryApi.GlobalLock(pos);
byte[] buffer;
if ((int)lenght > 0)
{
//Init a buffer which will contain the clipboard data
buffer = new byte[(int)lenght];
int l = Convert.ToInt32(lenght.ToString());
//Copy data from clipboard to our byte[] buffer
Marshal.Copy(gLock, buffer, 0, l);
}
else
{
buffer = new byte[0];
}
//Create a ClipData object that represtens current clipboard data
var cd = new ClipboardData(format, formatName, buffer);
cd.FormatName = formatName;
//Add current Clipboard Data to the list
clipData.Add(cd);
}
//Close the clipboard and realese unused resources
ClipboardApi.CloseClipboard();
//Returns the list of Clipboard Datas as a ReadOnlyCollection of ClipData
return(new ReadOnlyCollection <ClipboardData>(clipData));
}
public ClipboardHandle(
IMainWindowHandleContainer mainWindow)
{
ClipboardApi.OpenClipboard(mainWindow.Handle);
}
