Windows control
controls are useful preset of child window but control is little different with normal child window control doesn’t need class registing control send message(WM_COMMAND) to its parent window’s callback function (window processor) send WM_COMMAND to parent window control gives parameters with wParam and lParam wParam 4 bytes first 2 bytes contains Notify code, notifying what kind of message control made can get with HIWORD(wParam) last 2 bytes contains control’s ID can get with LOWORD(wParam) lParam control’s handle controls...