Was Macau under foreign control before the Qing Dynasty, and did the shaving of hair and changing of clothes happen later? Did the Qing Dynasty have any control over Macau?

Your question could be written in a monograph of hundreds of thousands of words how can you answer it clearly here?

Simply put, before 1840, although Macau was a Chinese territory, it was used by the Portuguese, who had to pay thousands of taels of silver to the Qing government every year until the Second Opium War

Even though Macau was permanently ceded by the Portuguese, the Chinese who lived there were still Chinese citizens, and therefore they were still Qing subjects, and Chinese law had a role to play, but Chinese law didn't care about the Portuguese and native Portuguese. Portuguese and native Portuguese, but some Chinese who had accepted western ideas began to follow the example of the foreigners and shaved their pigtails and wore western clothes, which was still common in the south coast. Dr. Sun Yat-sen, who was from Zhuhai, wore western clothes in Macao at the time, but I guess by that time Dr. Sun Yat-sen had already joined the United States 。。。。.