i'm from iraq, can i get the tourist visa to Hong Kong from Bangkok? and how many days it takes?

Yes, you can either apply at the embassy in Bangkok or directly send the required documents to the HK Immigration Department. The following documens will be needed: the application form (ID 1003A), your recent photo affixed on the application form, photocopy of your passport, photocopy of your financial standing proof (bank statements, saving accounts passbooks, tax receipts, etc.) and employment proof (if any) (e.g. salary slip), photocopy of your transportation arrangement proof, photocopy of your itinerary. It usually takes about one month for the processing.