Information functions obtain information about the number and position of windows on the screen. Following are the information functions:
| Function | Description |
| AnyPopup | Indicates whether any pop-up window exists. |
| ChildWindowFromPoint | Determines which child window contains a specific point. |
| EnumChildWindows | Enumerates the child windows that belong to a specific parent window. |
| EnumTaskWindows | Enumerates all windows associated with a given task. |
| EnumWindows | Enumerates windows on the display. |
| FindWindow | Returns the handle of a window with the given class and title. |
| GetNextWindow | Returns a handle of the next or previous window. |
| GetParent | Retrieves the handle of the specified window's parent window. |
| GetTopWindow | Returns a handle of the top-level child window. |
| GetWindow | Returns a handle of a window that has the specified relationship to the given window. |
| GetWindowTask | Returns the handle of a task associated with a window. |
| IsChild | Determines whether a window is the descendent of a specified window. |
| IsWindow | Determines whether a window is a valid, existing window. |
| SetParent | Changes the parent window of a child window. |
| SystemParametersInfo | Retrieves or sets systemwide values. |
| WindowFromPoint | Identifies the window containing a specified point. |
For detailed information about information functions, see the Microsoft Windows Programmer's Reference, Volume 2.