... was designed and delivered as a procedure-based interface and, hence, was perfect for the development technology of the time. However, as object-oriented extensions to C were developed ... WM_KEYDOWN){//Khai bao bien nay de xu ly viec user bam nut BackSpace, Deletem_bAutoComplete = TRUE;//Phai co doan ma nay de cho phep nguoi dung bam phim BackSpace va delete co hieu ... windows, semaphores, and pens) through a handle and a defined interface. The actual implementation and data used by the implementation is hidden from the view of the program. This “data hiding”...