System and method for preventing a copy of a protected window

摘要

The present invention discloses a method, system and computer program for masking a window or a visible part of a window during a copy screen or copy window operation. The invention :
• provides the application with a primitive to indicate to a window manager whether or not the window comprises sensitive information that must be copy protected.
• defines a new window attribute to indicate that the window cannot be copied.
• updates window attributes when this window is copy protected :
• masks all or part of the window content when the window is no more active, so that confidential information on this window is no longer visible, and
• displays the original window content when the window becomes active again.

• at the reception of a command for copying the active window or the screen, masks temporarily all or part of the content of the active window if this active window is copy protected, so that confidential information on this window is no longer visible during the copy operation.