https://learn.microsoft.com/en-us/dotnet/api/system.windows.forms.form.desktopbounds?view=netframework-4.8.1&viewFallbackFrom=windowsdesktop-10.0&redirectedfrom=MSDN
Form.DesktopBounds Property (System.Windows.Forms) | Microsoft Learn
Gets or sets the size and location of the form on the Windows desktop.
property systemwindows formsmicrosoftlearn