v5: - Use snake_case for wait_for_dm() parameters. - Lower the test timeouts. - Remove dmFields check from wait_for_dm(). - Use shorter names for the test events. - Rename test_ChangeDisplaySettingsEx() parameters. - Remove the second process in multiple device test. - Remove redundant expect_dm() calls. - Remove redundant adapter setting restoration in test_ChangeDisplaySettingsEx(). - Move test child process code to a helper function. - Change the commit 3 subject and description. - Add tests for ChangeDisplaySettingsExA() without CDS_FULLSCREEN. - Use a pointer for display_settings_restorer_classname. - Pass class name instead of atom to UnregisterClassW(). - Move restorer thread creation to initialize_display_settings(). - Change wait_named_mutex() return type to void.