/*
* UserProcessMouseInput
*
* Process raw mouse input data
*/
VOID NTAPI
UserProcessMouseInput(PMOUSE_INPUT_DATA mid)
{
MOUSEINPUT mi;
/* Convert MOUSE_INPUT_DATA to MOUSEINPUT. First init all fields. */
mi.dx = mid->LastX;
mi.dy = mid->LastY;
mi.mouseData = 0;
mi.dwFlags = 0;
mi.time = 0;
mi.dwExtraInfo = mid->ExtraInformation;
/* Mouse position */
if (mi.dx != 0 || mi.dy != 0)
mi.dwFlags |= MOUSEEVENTF_MOVE;
/* Flags for absolute move */
if (mid->Flags & MOUSE_MOVE_ABSOLUTE)
mi.dwFlags |= MOUSEEVENTF_ABSOLUTE;
if (mid->Flags & MOUSE_VIRTUAL_DESKTOP)
mi.dwFlags |= MOUSEEVENTF_VIRTUALDESK;
/* Left button */
if (mid->ButtonFlags & MOUSE_LEFT_BUTTON_DOWN)
mi.dwFlags |= MOUSEEVENTF_LEFTDOWN;
if (mid->ButtonFlags & MOUSE_LEFT_BUTTON_UP)
mi.dwFlags |= MOUSEEVENTF_LEFTUP;
/* Middle button */
if (mid->ButtonFlags & MOUSE_MIDDLE_BUTTON_DOWN)
mi.dwFlags |= MOUSEEVENTF_MIDDLEDOWN;
if (mid->ButtonFlags & MOUSE_MIDDLE_BUTTON_UP)
mi.dwFlags |= MOUSEEVENTF_MIDDLEUP;
/* Right button */
if (mid->ButtonFlags & MOUSE_RIGHT_BUTTON_DOWN)
mi.dwFlags |= MOUSEEVENTF_RIGHTDOWN;
if (mid->ButtonFlags & MOUSE_RIGHT_BUTTON_UP)
mi.dwFlags |= MOUSEEVENTF_RIGHTUP;
/* Note: Next buttons use mouseData field so they cannot be sent in one call */
/* Button 4 */
if (mid->ButtonFlags & MOUSE_BUTTON_4_DOWN)
{
mi.dwFlags |= MOUSEEVENTF_XDOWN;
mi.mouseData |= XBUTTON1;
}
if (mid->ButtonFlags & MOUSE_BUTTON_4_UP)
{
mi.dwFlags |= MOUSEEVENTF_XUP;
mi.mouseData |= XBUTTON1;
}
/* If mouseData is used by button 4, send input and clear mi */
if (mi.dwFlags & (MOUSE_BUTTON_4_DOWN | MOUSE_BUTTON_4_UP))
{
UserSendMouseInput(&mi, FALSE);
RtlZeroMemory(&mi, sizeof(mi));
}
/* Button 5 */
if (mid->ButtonFlags & MOUSE_BUTTON_5_DOWN)
{
mi.mouseData |= XBUTTON2;
mi.dwFlags |= MOUSEEVENTF_XDOWN;
}
if (mid->ButtonFlags & MOUSE_BUTTON_5_UP)
{
mi.mouseData |= XBUTTON2;
mi.dwFlags |= MOUSEEVENTF_XUP;
}
/* If mouseData is used by button 5, send input and clear mi */
if (mi.dwFlags & (MOUSE_BUTTON_5_DOWN | MOUSE_BUTTON_5_UP))
{
UserSendMouseInput(&mi, FALSE);
RtlZeroMemory(&mi, sizeof(mi));
}
/* Mouse wheel */
if (mid->ButtonFlags & MOUSE_WHEEL)
{
mi.mouseData = mid->ButtonData;
mi.dwFlags |= MOUSEEVENTF_WHEEL;
}
/* If something has changed, send input to user */
if (mi.dwFlags)
UserSendMouseInput(&mi, FALSE);
}
HWND FASTCALL
co_UserSetCapture(HWND hWnd)
{
PTHREADINFO pti;
PUSER_MESSAGE_QUEUE ThreadQueue;
PWND pWnd, Window = NULL;
HWND hWndPrev;
pti = PsGetCurrentThreadWin32Thread();
ThreadQueue = pti->MessageQueue;
if (ThreadQueue->QF_flags & QF_CAPTURELOCKED)
return NULL;
if (hWnd && (Window = UserGetWindowObject(hWnd)))
{
if (Window->head.pti->MessageQueue != ThreadQueue)
{
return NULL;
}
}
hWndPrev = MsqSetStateWindow(pti, MSQ_STATE_CAPTURE, hWnd);
if (hWndPrev)
{
pWnd = UserGetWindowObject(hWndPrev);
if (pWnd)
IntNotifyWinEvent(EVENT_SYSTEM_CAPTUREEND, pWnd, OBJID_WINDOW, CHILDID_SELF, WEF_SETBYWNDPTI);
}
if (Window)
IntNotifyWinEvent(EVENT_SYSTEM_CAPTURESTART, Window, OBJID_WINDOW, CHILDID_SELF, WEF_SETBYWNDPTI);
if (hWndPrev && hWndPrev != hWnd)
{
if (ThreadQueue->MenuOwner && Window) ThreadQueue->QF_flags |= QF_CAPTURELOCKED;
//co_IntPostOrSendMessage(hWndPrev, WM_CAPTURECHANGED, 0, (LPARAM)hWnd);
co_IntSendMessage(hWndPrev, WM_CAPTURECHANGED, 0, (LPARAM)hWnd);
ThreadQueue->QF_flags &= ~QF_CAPTURELOCKED;
}
ThreadQueue->spwndCapture = Window;
if (hWnd == NULL) // Release mode.
{
MOUSEINPUT mi;
/// These are HACKS!
/* Also remove other windows if not capturing anymore */
MsqSetStateWindow(pti, MSQ_STATE_MENUOWNER, NULL);
MsqSetStateWindow(pti, MSQ_STATE_MOVESIZE, NULL);
///
/* Somebody may have missed some mouse movements */
mi.dx = 0;
mi.dy = 0;
mi.mouseData = 0;
mi.dwFlags = MOUSEEVENTF_MOVE;
mi.time = 0;
mi.dwExtraInfo = 0;
UserSendMouseInput(&mi, FALSE);
}
return hWndPrev;
}
/*
* NtUserSendInput
*
* Generates input events from software
*/
UINT
APIENTRY
NtUserSendInput(
UINT nInputs,
LPINPUT pInput,
INT cbSize)
{
PTHREADINFO pti;
UINT uRet = 0;
TRACE("Enter NtUserSendInput\n");
UserEnterExclusive();
pti = PsGetCurrentThreadWin32Thread();
ASSERT(pti);
if (!pti->rpdesk)
{
goto cleanup;
}
if (!nInputs || !pInput || cbSize != sizeof(INPUT))
{
EngSetLastError(ERROR_INVALID_PARAMETER);
goto cleanup;
}
/*
* FIXME: Check access rights of the window station
* e.g. services running in the service window station cannot block input
*/
if (!ThreadHasInputAccess(pti) ||
!IntIsActiveDesktop(pti->rpdesk))
{
EngSetLastError(ERROR_ACCESS_DENIED);
goto cleanup;
}
while (nInputs--)
{
INPUT SafeInput;
NTSTATUS Status;
Status = MmCopyFromCaller(&SafeInput, pInput++, sizeof(INPUT));
if (!NT_SUCCESS(Status))
{
SetLastNtError(Status);
goto cleanup;
}
switch (SafeInput.type)
{
case INPUT_MOUSE:
if (UserSendMouseInput(&SafeInput.mi, TRUE))
uRet++;
break;
case INPUT_KEYBOARD:
if (UserSendKeyboardInput(&SafeInput.ki, TRUE))
uRet++;
break;
case INPUT_HARDWARE:
FIXME("INPUT_HARDWARE not supported!");
break;
default:
ERR("SendInput(): Invalid input type: 0x%x\n", SafeInput.type);
break;
}
}
cleanup:
TRACE("Leave NtUserSendInput, ret=%u\n", uRet);
UserLeave();
return uRet;
}