The File Filters page of the settings dialog allows you to specify directories and files that OutputDebugString Checker will ignore when searching for functions.
This allows you to ignore directories files where you deliberately have special case usage of these functions (unit tests, development work, custom use cases) that would trigger warning results in OutputDebugString Checker that you don't want.
Click Add Dir... to add a directory. The Microsoft directory chooser will be displayed.
Click Add File... to add a file. The Microsoft file chooser will be displayed.
Click Remove to remove the selected directories and files.
Click Remove All to remove all directories and files.
Click Reset to reset all settings on all pages of the settings dialog.