Here is comparison between MSDOS and Win Prog
MS-DOS Programming | Windows Programming |
MS-DOS calls operating system to get user input. | Windows program processes the input via MESSAGES. |
MS-DOS directly accessed video memory and printer So it required drivers for every change of printer. | Windows introduces layer of abstraction called GDI (Graphical Device Interface).Which is the device context this will issue required instructions |
When Data has to be accessed by a MS-DOS program, data can be a constant (variable) /it should be in a file. | In Windows programming while running it merges, into a linked program through a process "binding". |
Additional memory management Techniques should be used. Separate files are required to manage the memory. | Windows provides additional memory management feature Separate files are not required to manage the memory; these are inbuilt in the program. |
All the programs are statically linked during the build process. Every program is linked inside the program itself. | Windows allows dynamic linking. Every program is linked at the time of running. |
