Gets the caption of the main window of the process.
Assembly: System (in System.dll)
The property is not defined because the process has exited.
You are trying to access the property for a process that is running on a remote computer. This property is available only for processes that are running on the local computer.
The platform is Windows 98 or Windows Millennium Edition (Windows Me); set ProcessStartInfo.UseShellExecute to false to access this property on Windows 98 and Windows Me.
A process has a main window associated with it only if the process has a graphical interface. If the associated process does not have a main window (so that MainWindowHandle is zero), is an empty string (""). If you have just started a process and want to use its main window title, consider using the WaitForInputIdle method to allow the process to finish starting, ensuring that the main window handle has been created. Otherwise, the system throws an exception.
The main window is the window that currently has the focus; note that this might not be the primary window for the process. You must use the Refresh method to refresh the Process object to get the current main window handle if it has changed.
Windows 98, Windows Millennium Edition Platform Note: This property is not available on this platform if you started the process with ProcessStartInfo.UseShellExecute set to true.
for full trust for the immediate caller. This member cannot be used by partially trusted code.