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Implementation of DragDetect. Based on Wine code (C) 1993, 1994 Alexandre Julliard.

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svn path=/trunk/; revision=15831
This commit is contained in:
Filip Navara 2005-06-07 16:54:15 +00:00
parent 4619446ed0
commit cc0fc0d35c
1 changed files with 39 additions and 0 deletions
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39
reactos/lib/user32/windows/input.c
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@ -44,7 +44,46 @@ DragDetect(
HWND hWnd,
POINT pt)
{
#if 0
return NtUserDragDetect(hWnd, pt.x, pt.y);
#else
MSG msg;
RECT rect;
POINT tmp;
ULONG dx = NtUserGetSystemMetrics(SM_CXDRAG);
ULONG dy = NtUserGetSystemMetrics(SM_CYDRAG);
rect.left = pt.x - dx;
rect.right = pt.x + dx;
rect.top = pt.y - dy;
rect.bottom = pt.y + dy;
SetCapture(hWnd);
for (;;)
{
while (PeekMessageW(&msg, 0, WM_MOUSEFIRST, WM_MOUSELAST, PM_REMOVE))
{
if (msg.message == WM_LBUTTONUP)
{
ReleaseCapture();
return 0;
}
if (msg.message == WM_MOUSEMOVE)
{
tmp.x = LOWORD(msg.lParam);
tmp.y = HIWORD(msg.lParam);
if (!PtInRect(&rect, tmp))
{
ReleaseCapture();
return 1;
}
}
}
WaitMessage();
}
return 0;
#endif
}