public static async Task <bool> ActivateProcess(string processName, CancellationToken token)
{
var hwnd = Utilities.FindProcessWindow(processName);
if (hwnd == IntPtr.Zero)
{
return(false);
}
var placement = new WinApi.WINDOWPLACEMENT();
placement.length = System.Runtime.InteropServices.Marshal.SizeOf(placement);
WinApi.GetWindowPlacement(hwnd, ref placement);
var showCmd = placement.showCmd switch
{
WinApi.SW_SHOWMAXIMIZED => WinApi.SW_SHOWMAXIMIZED,
WinApi.SW_SHOWMINIMIZED => WinApi.SW_RESTORE,
_ => WinApi.SW_SHOWNORMAL
};
using (AttachedThreadInputScope.Create())
{
await InputHelpers.TimerYield(token : token);
WinApi.SetForegroundWindow(hwnd);
WinApi.ShowWindow(hwnd, showCmd);
await InputHelpers.TimerYield(token : token);
}
return(true);
}
public static async Task WaitForAllKeysReleasedAsync(CancellationToken token)
{
await s_asyncLock.WaitAsync(token);
try
{
ClearKeyboardState();
while (true)
{
if (IsKeyPressed(WinApi.VK_ESCAPE))
{
throw new TaskCanceledException();
}
if (!IsAnyKeyPressed())
{
break;
}
await InputHelpers.InputYield(delay : KEYBOARD_POLL_DELAY, token : token);
}
}
finally
{
s_asyncLock.Release();
}
}
public static async Task <bool> FeedTextAsync(string text, CancellationToken token)
{
await s_asyncLock.WaitAsync(token);
try
{
var foregroundWindow = WinApi.GetForegroundWindow();
WinApi.BlockInput(true);
try
{
var size = Marshal.SizeOf <WinApi.INPUT>();
var input = new WinApi.INPUT[1];
// feed each character individually and asynchronously
foreach (var c in text)
{
token.ThrowIfCancellationRequested();
if (WinApi.GetForegroundWindow() != foregroundWindow ||
IsAnyKeyPressed())
{
break;
}
if (c == '\n' || c == '\r')
{
// we need this for correctly handling line breaks
// when pasting into Chromium's <textarea>
SimulateKeyDown(WinApi.VK_RETURN);
SimulateKeyUp(WinApi.VK_RETURN);
}
else
{
CharToKeyboardInput(c, ref input[0]);
if (WinApi.SendInput((uint)input.Length, input, size) == 0)
{
break;
}
}
if (InputHelpers.AnyInputMessage(WinApi.QS_ALLINPUT))
{
await InputHelpers.TimerYield(token : token);
}
}
return(true);
}
finally
{
WinApi.BlockInput(false);
}
}
finally
{
s_asyncLock.Release();
}
}
public static async Task <bool> FeedTextAsync(string text, CancellationToken token)
{
await s_asyncLock.WaitAsync(token);
try
{
var foregroundWindow = WinApi.GetForegroundWindow();
WinApi.BlockInput(true);
try
{
var size = Marshal.SizeOf <WinApi.INPUT>();
var input = new WinApi.INPUT[1];
// feed each character individually and asynchronously
foreach (var c in text)
{
token.ThrowIfCancellationRequested();
if (WinApi.GetForegroundWindow() != foregroundWindow ||
IsAnyKeyPressed())
{
break;
}
CharToKeyboardInput(c, ref input[0]);
if (WinApi.SendInput((uint)input.Length, input, size) == 0)
{
break;
}
if (InputHelpers.AnyInputMessage(WinApi.QS_ALLINPUT))
{
await InputHelpers.TimerYield(token : token);
}
}
return(true);
}
finally
{
WinApi.BlockInput(false);
}
}
finally
{
s_asyncLock.Release();
}
}
