This overview is not available for this release.
When it is complete, the overview will discuss the following functions:
| Function | Description |
| CallMsgFilter | Passes a message to a message-filter function |
| CallNextHookEx | Calls the next hook in a chain |
| JournalPlaybackProc | Places recorded events into the system queue |
| JournalRecordProc | Records event messages |
| KeyboardProc | Filters keyboard messages |
| MouseProc | Filters mouse messages |
| MessageProc | Filters dialog, message box, or menu messages |
| SetWindowsHook | Installs a hook function |
| SetWindowsHookEx | Installs a hook function |
| SysMsgProc | Filters dialog, message box, or menu messages |
| UnhookWindowsHook | Removes a filter function |
| UnhookWindowsHookEx | Removes a function from the hook chain |
| DefHookProc | Obsolete |