static ULONG
PreprocessInput(PCONSRV_CONSOLE Console,
PINPUT_RECORD InputEvent,
ULONG NumEventsToWrite)
{
ULONG NumEvents;
/*
* Loop each event, and for each, check for pause or unpause
* and perform adequate behaviour.
*/
for (NumEvents = NumEventsToWrite; NumEvents > 0; --NumEvents)
{
/* Check for pause or unpause */
if (InputEvent->EventType == KEY_EVENT && InputEvent->Event.KeyEvent.bKeyDown)
{
WORD vk = InputEvent->Event.KeyEvent.wVirtualKeyCode;
if (!(Console->PauseFlags & PAUSED_FROM_KEYBOARD))
{
DWORD cks = InputEvent->Event.KeyEvent.dwControlKeyState;
if (Console->InputBuffer.Mode & ENABLE_LINE_INPUT &&
(vk == VK_PAUSE ||
(vk == 'S' && (cks & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED)) &&
!(cks & (LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED)))))
{
ConioPause(Console, PAUSED_FROM_KEYBOARD);
/* Skip the event */
RtlMoveMemory(InputEvent,
InputEvent + 1,
(NumEvents - 1) * sizeof(INPUT_RECORD));
--NumEventsToWrite;
continue;
}
}
else
{
if ((vk < VK_SHIFT || vk > VK_CAPITAL) && vk != VK_LWIN &&
vk != VK_RWIN && vk != VK_NUMLOCK && vk != VK_SCROLL)
{
ConioUnpause(Console, PAUSED_FROM_KEYBOARD);
/* Skip the event */
RtlMoveMemory(InputEvent,
InputEvent + 1,
(NumEvents - 1) * sizeof(INPUT_RECORD));
--NumEventsToWrite;
continue;
}
}
}
/* Go to the next event */
++InputEvent;
}
return NumEventsToWrite;
}
NTSTATUS FASTCALL
ConioProcessInputEvent(PCONSOLE Console,
PINPUT_RECORD InputEvent)
{
ConsoleInput *ConInRec;
/* Check for pause or unpause */
if (InputEvent->EventType == KEY_EVENT && InputEvent->Event.KeyEvent.bKeyDown)
{
WORD vk = InputEvent->Event.KeyEvent.wVirtualKeyCode;
if (!(Console->PauseFlags & PAUSED_FROM_KEYBOARD))
{
DWORD cks = InputEvent->Event.KeyEvent.dwControlKeyState;
if (Console->InputBuffer.Mode & ENABLE_LINE_INPUT &&
(vk == VK_PAUSE || (vk == 'S' &&
(cks & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED)) &&
!(cks & (LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED)))))
{
ConioPause(Console, PAUSED_FROM_KEYBOARD);
return STATUS_SUCCESS;
}
}
else
{
if ((vk < VK_SHIFT || vk > VK_CAPITAL) && vk != VK_LWIN &&
vk != VK_RWIN && vk != VK_NUMLOCK && vk != VK_SCROLL)
{
ConioUnpause(Console, PAUSED_FROM_KEYBOARD);
return STATUS_SUCCESS;
}
}
}
/* Add event to the queue */
ConInRec = ConsoleAllocHeap(0, sizeof(ConsoleInput));
if (ConInRec == NULL) return STATUS_INSUFFICIENT_RESOURCES;
ConInRec->InputEvent = *InputEvent;
InsertTailList(&Console->InputBuffer.InputEvents, &ConInRec->ListEntry);
SetEvent(Console->InputBuffer.ActiveEvent);
CsrNotifyWait(&Console->InputBuffer.ReadWaitQueue,
WaitAny,
NULL,
NULL);
if (!IsListEmpty(&Console->InputBuffer.ReadWaitQueue))
{
CsrDereferenceWait(&Console->InputBuffer.ReadWaitQueue);
}
return STATUS_SUCCESS;
}
