* Apple (NASDAQ:AAPL), Twitter results weigh on tech stocks in Europe and Asia
* Wall Street to open lower, eyes on Facebook, PayPal
* Dollar weak before Fed rate decision; no change seen
* Weaker dollar lifts oil to 2016 highs
By Nigel Stephenson
LONDON, April 27 (Reuters) - Technology stocks fell in Europe and Asia on Wednesday after worse-than expected results from Apple and Twitter, while the dollar weakened before a U.S. monetary policy decision, propelling oil to 2016 highs.
Apple APPL.O fell 7.5 percent in pre-market trading after the company reported on Tuesday its first decline in iPhone sales and its first drop in revenue in more than a decade. Twitter TWTR.N lost more than 14 percent after first-quarter revenue lagged expectations.
Wall Street was expected to open lower SPc1 , with futures on the tech-heavy Nasdaq NQc1 down more than 1 percent. Facebook FB.O and PayPal PYPL.O are expected to report results after the market closes on Wednesday.
In Europe, Austria's AMS AMS.S fell 2 percent, though Dialog Semiconducter DLGS.DE and ARM ARM.L reversed early declines.
Japan's Nikkei .N225 index closed 0.4 percent lower and Taiwan shares .TWII fell 0.2 percent as shares of suppliers of parts for iPhones fell.
The pan-European FTSEurofirst 300 index .FTEU3 rose 0.2 percent. German sportswear group Adidas ADSGn.DE surged 7 percent after raising its guidance for 2016 as it reported a 35 percent jump in first-quarter operating profit.
Barclays BARC.L was flat after reporting a fall in profits, but with signs of resilience at the bank's UK division.
"We've had a good run-up in the last couple of weeks, but I think we're still in a bear market. My overall roadmap from here is down," said Andreas Clenow, hedge fund manager at Zurich-based ACIES Asset Management.
Earlier, MSCI's broadest index of Asia-Pacific shares outside Japan .MIAPJ0000PUS retreated 0.7 percent.
Australian shares .AXJO closed down 0.6 percent. Banks fell there after weak inflation data revived prospects for a rate cut as early as next week.
The dollar fell 0.2 percent against a basket of currencies .DXY as investors waited for a Federal Reserve decision on U.S. rates at 1800 GMT. No change in rates is expected, but the Fed may signal its intention to tighten policy later this year polled by Reuters expect two increases this year, although futures prices show traders do not expect rates to rise until late 2016, according to CME Group's FedWatch.
"On a risk/reward basis there is more scope there for a hawkish surprise, because the market's been pricing itself for more dovishness for a very long time," said Rabobank currency strategist Jane Foley.
The euro EUR= rose 0.1 percent to $1.1306 while the yen JPY= was flat at 111.28 per dollar. The Bank of Japan announces its policy decision on Thursday.
AUSSIE DOLLAR
The Australian dollar AUD= was the big mover, falling nearly 2 percent to $0.7600.
Sterling GBP= held close to Tuesday's 12-week high of $1.4640 hit on rising expectations Britons will vote in June to stay in the European Union.
The weaker dollar helped lift oil prices. Brent crude LCOc1 , the international benchmark, hit a new high for the year of $47.05 a barrel.
Copper CMCU3 fell for a third consecutive day as the benefits of a weaker dollar were outweighed by worries over demand for China. The metal fell 0.7 percent to $4,925.
Gold XAU= edged up about 0.1 percent to $1,245 an ounce.