关于ok卡的的一些函数和例子，主要包括okdemo.rc，okdemo.ico，resource.h file.c，bitmap.c，callback.c，mulcap.c，extra.c，prnpic.c，audio.c等函数-Ok card on some of the functions and examples, including okdemo.rc, okdemo.ico, resource.h file.c, bitmap.c, callback.c, mulcap.c, extra.c, prnpic.c, audio.c and other functions