BroadcastSystemMessage Function MasksCommon Dialog Box Error MessagesCommon Dialog Box Notification MessagesClass StylesEdit Control Notification CodesExtended Window StylesGetClassLongPtr Function ConstantsGetWindow API Function ConstantsGetWindowLongPtr Function ConstantsHook CodesGeneralComputer-based training (CBT) hook codesWH_MSGFILTER hook codesWH_SHELL hook codesHSHELL_ACCESSIBILITYSTATE ConstantsKey State Masks for Mouse MessagesLow-Level Hook ConstantsMouse Wheel ConstantOpen and Save As Common Dialog BoxNotification CodesPeekMessage Function OptionsPostMessage and SendMessage Function ConstantsPredefined Control ID Values for the Open andSave As Common Dialog BoxesSendMessageTimeout API Function ConstantsSetWindowLongPtr/GetWindowLongPtr Function ConstantsSetWindowPos Function ConstantsShowWindow Function ConstantsUser Button Notification CodesVirtual Key CodesWindow Hook ConstantsWindow StylesWM_KEYUP, WM_DOWN, andWM_CHAR lParam HIWORD FlagsWM_NCHITTEST CodesWH_SHELL Codes for the HSHELL_APPCOMMAND Hook CodeWM_SIZE Message wParam ValuesWM_SYSCOMMAND Message wParam ConstantsXButton Constants