LRESULT
DefWndNCLButtonDown(HWND hWnd, WPARAM wParam, LPARAM lParam)
{
switch (wParam)
{
case HTCAPTION:
{
HWND hTopWnd = GetAncestor(hWnd, GA_ROOT);
if ( NtUserCallHwndLock(hTopWnd, HWNDLOCK_ROUTINE_SETFOREGROUNDWINDOWMOUSE) ||
GetActiveWindow() == hTopWnd)
{
SendMessageW(hWnd, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, lParam);
}
break;
}
case HTSYSMENU:
{
LONG style = GetWindowLongPtrW( hWnd, GWL_STYLE );
if (style & WS_SYSMENU)
{
SendMessageW(hWnd, WM_SYSCOMMAND, SC_MOUSEMENU + HTSYSMENU,
lParam);
}
break;
}
case HTMENU:
{
SendMessageW(hWnd, WM_SYSCOMMAND, SC_MOUSEMENU + HTMENU, lParam);
break;
}
case HTHSCROLL:
{
SendMessageW(hWnd, WM_SYSCOMMAND, SC_HSCROLL + HTHSCROLL, lParam);
break;
}
case HTVSCROLL:
{
SendMessageW(hWnd, WM_SYSCOMMAND, SC_VSCROLL + HTVSCROLL, lParam);
break;
}
case HTMINBUTTON:
case HTMAXBUTTON:
case HTCLOSE:
{
DefWndDoButton(hWnd, wParam);
break;
}
case HTLEFT:
case HTRIGHT:
case HTTOP:
case HTBOTTOM:
case HTTOPLEFT:
case HTTOPRIGHT:
case HTBOTTOMLEFT:
case HTBOTTOMRIGHT:
{
/* Old comment:
* "make sure hittest fits into 0xf and doesn't overlap with HTSYSMENU"
* This was previously done by setting wParam=SC_SIZE + wParam - 2
*/
/* But that is not what WinNT does. Instead it sends this. This
* is easy to differentiate from HTSYSMENU, because HTSYSMENU adds
* SC_MOUSEMENU into wParam.
*/
SendMessageW(hWnd, WM_SYSCOMMAND, SC_SIZE + wParam - (HTLEFT - WMSZ_LEFT), lParam);
break;
}
case HTBORDER:
break;
}
return(0);
}
LRESULT
DefWndNCLButtonDown(HWND hWnd, WPARAM wParam, LPARAM lParam)
{
PWND Wnd = ValidateHwnd(hWnd);
switch (wParam)
{
case HTCAPTION:
{
HWND hTopWnd = hWnd, parent;
while(1)
{
if ((GetWindowLongW( hTopWnd, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD)
break;
parent = GetAncestor( hTopWnd, GA_PARENT );
if (!parent || parent == GetDesktopWindow()) break;
hTopWnd = parent;
}
if ( NtUserCallHwndLock(hTopWnd, HWNDLOCK_ROUTINE_SETFOREGROUNDWINDOWMOUSE) ||
GetActiveWindow() == hTopWnd)
{
SendMessageW(hWnd, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, lParam);
}
break;
}
case HTSYSMENU:
{
LONG style = GetWindowLongPtrW( hWnd, GWL_STYLE );
if (style & WS_SYSMENU)
{
if( Wnd && !(style & WS_MINIMIZE) )
{
RECT rect;
HDC hDC = GetWindowDC(hWnd);
UserGetInsideRectNC(Wnd, &rect);
UserDrawSysMenuButton(hWnd, hDC, &rect, TRUE);
ReleaseDC( hWnd, hDC );
}
SendMessageW(hWnd, WM_SYSCOMMAND, SC_MOUSEMENU + HTSYSMENU, lParam);
}
break;
}
case HTMENU:
{
SendMessageW(hWnd, WM_SYSCOMMAND, SC_MOUSEMENU + HTMENU, lParam);
break;
}
case HTHSCROLL:
{
SendMessageW(hWnd, WM_SYSCOMMAND, SC_HSCROLL + HTHSCROLL, lParam);
break;
}
case HTVSCROLL:
{
SendMessageW(hWnd, WM_SYSCOMMAND, SC_VSCROLL + HTVSCROLL, lParam);
break;
}
case HTMINBUTTON:
case HTMAXBUTTON:
case HTCLOSE:
{
DefWndDoButton(hWnd, wParam);
break;
}
case HTLEFT:
case HTRIGHT:
case HTTOP:
case HTBOTTOM:
case HTTOPLEFT:
case HTTOPRIGHT:
case HTBOTTOMLEFT:
case HTBOTTOMRIGHT:
{
/* Old comment:
* "make sure hittest fits into 0xf and doesn't overlap with HTSYSMENU"
* This was previously done by setting wParam=SC_SIZE + wParam - 2
*/
/* But that is not what WinNT does. Instead it sends this. This
* is easy to differentiate from HTSYSMENU, because HTSYSMENU adds
* SC_MOUSEMENU into wParam.
*/
SendMessageW(hWnd, WM_SYSCOMMAND, SC_SIZE + wParam - (HTLEFT - WMSZ_LEFT), lParam);
break;
}
case HTBORDER:
break;
}
return(0);
}
