private IntPtr WinProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
switch (msg)
{
case Win32.WmChangecbchain:
if (wParam == hWndNextViewer)
{
hWndNextViewer = lParam; //clipboard viewer chain changed, need to fix it.
}
else if (hWndNextViewer != IntPtr.Zero)
{
Win32.SendMessage(hWndNextViewer, msg, wParam, lParam); //pass the message to the next viewer.
}
break;
case Win32.WmDrawclipboard:
Task.Run(async() =>
{
await mainWindow.Dispatcher.InvokeAsync(async() =>
{
Win32.SendMessage(hWndNextViewer, msg, wParam, lParam); //pass the message to the next viewer //clipboard content changed
if (Clipboard.ContainsText() && !string.IsNullOrEmpty(Clipboard.GetText().Trim()))
{
var currentText = Clipboard.GetText().RemoveSpecialCharacters().ToLowerInvariant();
if (!string.IsNullOrEmpty(currentText))
{
await Task.Run(async() =>
{
if (cancellationTokenSource.Token.IsCancellationRequested)
{
return;
}
await WhenClipboardContainsTextEventHandler.InvokeSafelyAsync(this,
new WhenClipboardContainsTextEventArgs {
CurrentString = currentText
}
);
await FlushCopyCommandAsync();
});
}
}
}, DispatcherPriority.Background);
});
break;
}
return(IntPtr.Zero);
}
private Task TriggerTextCaptured(string currentText)
{
return(Task.Run(async() =>
{
if (_cancellationTokenSource.Token.IsCancellationRequested)
{
return;
}
await WhenClipboardContainsTextEventHandler.InvokeSafelyAsync(this,
new WhenClipboardContainsTextEventArgs {
CurrentString = currentText
}
);
}));
}