I need to knw hw I can make a gui for aa prograaaam written in C++ ,m using the codeblocks IDE

Code::Blocks comes with several GUI toolkits. Just start a project with one of those.

As AD said, but to elaborate - there are a number of C++ GUI tool kits that you can use, some of which are nicely multi-platform (Windows/Unix/Linux) and only require a recompile to run on any of them. The GUI tool kits that I see most often for this are things like wx and qt. Both are good, though wx is simpler and qt is more complete. Either will let you build nice GUI applications without a lot (but some) of effort.

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