/// <summary>
/// Gets a value indicating whether is the window cloaked. To detect UWP apps in background or win32 apps running in another virtual desktop
/// </summary>
public bool IsWindowCloaked()
{
int isCloaked = 0;
const int DWMWA_CLOAKED = 14;
InteropAndHelpers.DwmGetWindowAttribute(hwnd, DWMWA_CLOAKED, out isCloaked, sizeof(int));
return(isCloaked != 0);
}
/// <summary>
/// Deactivates the live preview
/// </summary>
public static void DeactivateLivePreview()
{
InteropAndHelpers.DwmpActivateLivePreview(
false,
IntPtr.Zero,
IntPtr.Zero,
InteropAndHelpers.LivePreviewTrigger.AltTab,
IntPtr.Zero);
}
/// <summary>
/// Activates the live preview
/// </summary>
/// <param name="targetWindow">the window to show by making all other windows transparent</param>
/// <param name="windowToSpare">the window which should not be transparent but is not the target window</param>
public static void ActivateLivePreview(IntPtr targetWindow, IntPtr windowToSpare)
{
InteropAndHelpers.DwmpActivateLivePreview(
true,
targetWindow,
windowToSpare,
InteropAndHelpers.LivePreviewTrigger.Superbar,
IntPtr.Zero);
}
/// <summary>
/// Updates the list of open windows
/// </summary>
public void UpdateOpenWindowsList()
{
windows.Clear();
new Task(() =>
{
InteropAndHelpers.CallBackPtr callbackptr = new InteropAndHelpers.CallBackPtr(WindowEnumerationCallBack);
InteropAndHelpers.EnumWindows(callbackptr, 0);
}).Start();
}
/// <summary>
/// Makes sure that a window is excluded from the live preview
/// </summary>
/// <param name="hwnd">handle to the window to exclude</param>
public static void SetWindowExlusionFromLivePreview(IntPtr hwnd)
{
int renderPolicy = (int)InteropAndHelpers.DwmNCRenderingPolicy.Enabled;
InteropAndHelpers.DwmSetWindowAttribute(
hwnd,
12,
ref renderPolicy,
sizeof(int));
}
/// <summary>
/// Gets the name of the process using the window handle
/// </summary>
/// <param name="hwnd">The handle to the window</param>
/// <returns>A string representing the process name or an empty string if the function fails</returns>
private string GetProcessNameFromWindowHandle(IntPtr hwnd)
{
uint processId = GetProcessIDFromWindowHandle(hwnd);
ProcessID = processId;
IntPtr processHandle = InteropAndHelpers.OpenProcess(InteropAndHelpers.ProcessAccessFlags.AllAccess, true, (int)processId);
StringBuilder processName = new StringBuilder(MaximumFileNameLength);
if (InteropAndHelpers.GetProcessImageFileName(processHandle, processName, MaximumFileNameLength) != 0)
{
return(processName.ToString().Split('\\').Reverse().ToArray()[0]);
}
else
{
return(string.Empty);
}
}
/// <summary>
/// Switches dekstop focus to the window
/// </summary>
public void SwitchToWindow()
{
// The following block is necessary because
// 1) There is a weird flashing behaviour when trying
// to use ShowWindow for switching tabs in IE
// 2) SetForegroundWindow fails on minimized windows
if (ProcessName.ToLower().Equals("iexplore.exe") || !Minimized)
{
InteropAndHelpers.SetForegroundWindow(Hwnd);
}
else
{
InteropAndHelpers.ShowWindow(Hwnd, InteropAndHelpers.ShowWindowCommands.Restore);
}
InteropAndHelpers.FlashWindow(Hwnd, true);
}
/// <summary>
/// Returns what the window size is
/// </summary>
/// <returns>The state (minimized, maximized, etc..) of the window</returns>
public WindowSizeState GetWindowSizeState()
{
InteropAndHelpers.GetWindowPlacement(Hwnd, out InteropAndHelpers.WINDOWPLACEMENT placement);
switch (placement.ShowCmd)
{
case InteropAndHelpers.ShowWindowCommands.Normal:
return(WindowSizeState.Normal);
case InteropAndHelpers.ShowWindowCommands.Minimize:
case InteropAndHelpers.ShowWindowCommands.ShowMinimized:
return(WindowSizeState.Minimized);
case InteropAndHelpers.ShowWindowCommands.Maximize: // No need for ShowMaximized here since its also of value 3
return(WindowSizeState.Maximized);
default:
// throw new Exception("Don't know how to handle window state = " + placement.ShowCmd);
return(WindowSizeState.Unknown);
}
}
/// <summary>
/// Gets the process ID for the Window handle
/// </summary>
/// <param name="hwnd">The handle to the window</param>
/// <returns>The process ID</returns>
private uint GetProcessIDFromWindowHandle(IntPtr hwnd)
{
InteropAndHelpers.GetWindowThreadProcessId(hwnd, out uint processId);
return(processId);
}
