Mouse cursor position without clicking

[Toby]

So I’m trying the code I found in this topic…

[How To] Mouse Position relative to View

I did read some threads about how to get Cursor Pos in cocos2dx, etc… This should only work on Windows Now heres some code for you: void GetWindowPos(HWND hWnd, int *x, int *y) { HWND hWndParent = GetParent(hWnd); POINT p = {0}; MapWindowPoints(hWnd, hWndParent, &p, 1); (*x) = p.x; (*y) = p.y; } Needed to get exact view position (the black box) And NOT the hole windows, with bar etc. In your Update, or where you wanna have the position do this: POINT point; if(GetCur…

But, MapWindowPoints hits an access violation somewhere. As far as I can tell in the locals, CCEGLView::sharedOpenGLView()->getHWnd(); returns an HWND with a variable ‘unused = 0’. Not sure I’m using it right.

…if I were to hack the engine…

Detect mouse move without touch

im write game like luxor , and i need to move desk wich must shoot a balls, how i can detect mouse move without touch or how i can implement move of desk and shoot ?

… where would I even start?

The code…

LPPOINT p = {0};
HWND hWnd = CCEGLView::sharedOpenGLView()->getHWnd();
HWND hWndParent = GetParent(hWnd);

MapWindowPoints(hWnd, hWndParent, p, 1);
//MapWindowPoints(hWnd, NULL, p, 1);

mTargetPosition.x = p->x;
mTargetPosition.y = p->y;

Thanks guys!

[nite]

See if this is what you need.

cocos2d/cocos2d-x/blob/v4-develop/tests/cpp-tests/Classes/InputTest/MouseTest.cpp#L59

[Toby]

Awesome, thanks so much for the reply!

But I tried that.

In CCEGLView::WindowProc() (which is from where clickless, mouse movement seems to be hitting a barrier) there’s an if statement with “MK_LBUTTON == wParam”. Only clicking AND mouse movement gets through the if.

I tried ‘hacking’ it to exclude that if, but it doesn’t work and fills my output with “if the index doesn’t exist, it is an error
touchesMoved: count = 0” as long as the mouse moves. That error is inside “CCEGLViewProtocol::handleTouchesMove”. HandleTOUCHESMove.

Here’s the code. I marked the ‘hack time!’ section and put in the variations I tried. I put a breakpoint before the filter and saw that if the mouse moved anywhere in the window, the code hit the breakpoint. So I’m pretty sure this is where my prob my lie.

LRESULT CCEGLView::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
    BOOL bProcessed = FALSE;

	POINT point = {(short)LOWORD(lParam), (short)HIWORD(lParam)};
    CCPoint pt(point.x, point.y);
    int id = 0;

    switch (message)
    {
    case WM_LBUTTONDOWN:
#if(_MSC_VER >= 1600)
        // Don't process message generated by Windows Touch
        if (m_bSupportTouch && (s_pfGetMessageExtraInfoFunction() & MOUSEEVENTF_FROMTOUCH) == MOUSEEVENTF_FROMTOUCH) break;
#endif /* #if(_MSC_VER >= 1600) */

        if (m_pDelegate && MK_LBUTTON == wParam)
        {
            POINT point = {(short)LOWORD(lParam), (short)HIWORD(lParam)};
            CCPoint pt(point.x, point.y);
            pt.x /= m_fFrameZoomFactor;
            pt.y /= m_fFrameZoomFactor;
            CCPoint tmp = ccp(pt.x, m_obScreenSize.height - pt.y);
            if (m_obViewPortRect.equals(CCRectZero) || m_obViewPortRect.containsPoint(tmp))
            {
                m_bCaptured = true;
                SetCapture(m_hWnd);
                int id = 0;
                handleTouchesBegin(1, &id, &pt.x, &pt.y);
				m_pTouch->setTouchInfo(id, (float)pt.x, (float)(m_obScreenSize.height - pt.y));
            }
			
			_buildEvent(INPUT_MOUSEDOWN, 
							CCMouse::LeftButton, 
							0, 
							0, 
							m_pTouch->getLocationInView().x, 
							m_pTouch->getLocationInView().y);
        }
        break;

    case WM_MOUSEMOVE:
#if(_MSC_VER >= 1600)
        // Don't process message generated by Windows Touch
        if (m_bSupportTouch && (s_pfGetMessageExtraInfoFunction() & MOUSEEVENTF_FROMTOUCH) == MOUSEEVENTF_FROMTOUCH) break;
#endif /* #if(_MSC_VER >= 1600) */

		// ------------------------ hack time! ------------------------
        //if (MK_LBUTTON == wParam)
        //if (m_bCaptured)
        if (MK_LBUTTON == wParam && m_bCaptured)
		// ------------------------ hack time! ------------------------

        {
            pt.x /= m_fFrameZoomFactor;
            pt.y /= m_fFrameZoomFactor;
            handleTouchesMove(1, &id, &pt.x, &pt.y);
			m_pTouch->setTouchInfo(id, (float)pt.x, (float)(m_obScreenSize.height - pt.y));

			_buildEvent(INPUT_MOUSEMOVE, 
							CCMouse::LeftButton, 
							0, 
							0, 
							m_pTouch->getLocationInView().x, 
							m_pTouch->getLocationInView().y);
        }
        break;

Thanks for the help guys!

edit/update…

So I found ‘GetCursorPos(LPPOINT)’ in WinUser.h, but the LPPOINT I send it isn’t being edited. It’s giving me an access violation when I try to get the coordinates.