private int QueryContinueDrag(int fEscapePressed, int grfKeyState) {
if (topControl != null && topControl.isDisposed()) return COM.DRAGDROP_S_CANCEL;
if (fEscapePressed != 0) {
if (hwndDrag != 0) OS.ImageList_DragLeave(hwndDrag);
return COM.DRAGDROP_S_CANCEL;
}
/*
* Bug in Windows. On some machines that do not have XBUTTONs,
* the MK_XBUTTON1 and OS.MK_XBUTTON2 bits are sometimes set,
* causing mouse capture to become stuck. The fix is to test
* for the extra buttons only when they exist.
*/
int mask = OS.MK_LBUTTON | OS.MK_MBUTTON | OS.MK_RBUTTON;
// if (display.xMouse) mask |= OS.MK_XBUTTON1 | OS.MK_XBUTTON2;
if ((grfKeyState & mask) == 0) {
if (hwndDrag != 0) OS.ImageList_DragLeave(hwndDrag);
return COM.DRAGDROP_S_DROP;
}
if (hwndDrag != 0) {
POINT pt = new POINT();
OS.GetCursorPos(pt);
RECT rect = new RECT();
OS.GetWindowRect(hwndDrag, rect);
OS.ImageList_DragMove(pt.x - rect.left, pt.y - rect.top);
}
return COM.S_OK;
}
