hi programmers
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I am using C++ to program . and I am in good acceptable level of knowledge about it. my question now is that I want start programming full software with installing feature. the type of programs I want to make like point of sales systems for supermarkets and pharmacies and buying and selling .
for installing feature I read advanced discussion in your website about this ..
now :
1-how can I store the information like the prices and the customers in my program ? should I use the txt files to make this and to save the database or there is more professional way to do this ?
2-about the graphics and the interfacing with the users in most text books I find that it different between the environments . how can I start for windows environment ?
3-is there any professional code I can follow or are there examples and tutorials to learn ? I want to learn making full software for costumers so I need to have more details about this field ..

I am using C++ to program . and I am in good acceptable level of knowledge about it. my question now is that I want start programming full software with installing feature. the type of programs I want to make like point of sales systems for supermarkets and pharmacies and buying and selling .
for installing feature I read advanced discussion in your website about this ..
now :
1-how can I store the information like the prices and the customers in my program ? should I use the txt files to make this and to save the database or there is more professional way to do this ?
2-about the graphics and the interfacing with the users in most text books I find that it different between the environments . how can I start for windows environment ?
3-is there any professional code I can follow or are there examples and tutorials to learn ? I want to learn making full software for costumers so I need to have more details about this field ..