private static IntPtr FindDescendantBy(IntPtr parent, string className = null, string text = null)
{
var matches = new List <IntPtr>();
WindowsApi.EnumChildWindows(parent, (handle, pointer) =>
{
if (
(className == null || WindowsHelpers.GetWindowClassName(handle) == className)
&&
(text == null || WindowsHelpers.GetWindowTextRaw(handle) == text)
)
{
matches.Add(handle);
}
return(true);
}, IntPtr.Zero);
if (matches.Count > 1)
{
throw new Exception($"Found {matches.Count} matching descendants.");
}
return(matches.FirstOrDefault());
}
public void Dispose()
{
if (!WindowsApi.SetThreadDesktop(originalDesktop))
{
WindowsHelpers.CheckLastError();
}
}
public void Dispose()
{
if (!WindowsApi.CloseDesktop(Handle))
{
WindowsHelpers.CheckLastError();
}
}
public int?GetExitCode()
{
if (!WindowsApi.GetExitCodeProcess(processInformation.hProcess, out var exitCode))
{
WindowsHelpers.CheckLastError();
}
return(exitCode == 259 /* STILL_ACTIVE */ ? null : (int?)exitCode);
}
public Desktop(string baseName)
{
Name = baseName + " " + DateTime.Now.Ticks.ToString(); //Ensuring this is unique since sometimes a name can't be reused later on
Handle = WindowsApi.CreateDesktop(Name, null, null, 0, WindowsApi.ACCESS_MASK.DESKTOP_CREATEWINDOW, null);
if (Handle == IntPtr.Zero)
{
WindowsHelpers.CheckLastError();
}
}
public void Dispose()
{
if (!WindowsApi.CloseHandle(processInformation.hProcess))
{
WindowsHelpers.CheckLastError();
}
if (!WindowsApi.CloseHandle(processInformation.hThread))
{
WindowsHelpers.CheckLastError();
}
}
/// <summary>
/// Switches to the <paramref name="newDesktopHandle"/> desktop.
/// </summary>
public DesktopContext(IntPtr newDesktopHandle)
{
originalDesktop = WindowsApi.GetThreadDesktop(WindowsApi.GetCurrentThreadId());
if (originalDesktop == IntPtr.Zero)
{
WindowsHelpers.CheckLastError();
}
if (!WindowsApi.SetThreadDesktop(newDesktopHandle))
{
WindowsHelpers.CheckLastError();
}
}
private static List <IntPtr> FindDescendantsBy(IntPtr parent, string className = null, string text = null)
{
var matches = new List <IntPtr>();
WindowsApi.EnumChildWindows(parent, (handle, pointer) =>
{
if (
(className == null || WindowsHelpers.GetWindowClassName(handle) == className)
&&
(text == null || WindowsHelpers.GetWindowTextRaw(handle) == text)
)
{
matches.Add(handle);
}
return(true);
}, IntPtr.Zero);
return(matches);
}
public DesktopProcess(string commandLine, string desktopName)
{
var startupInfo = new WindowsApi.STARTUPINFO
{
cb = Marshal.SizeOf <WindowsApi.STARTUPINFO>(),
lpDesktop = desktopName,
};
if (!WindowsApi.CreateProcess(
null,
commandLine,
null,
null,
true,
0,
IntPtr.Zero,
null,
ref startupInfo,
out processInformation
))
{
WindowsHelpers.CheckLastError();
}
}