i want to make some graphical programs in DEV C++,plz name some libraries of DEV C++ for making graphical libraries????

Dev-C++ is outdated, you should use a different IDE (such as Code::Blocks).
As for graphical libraries, SFML would be your best bet (assuming you're talking about 2D graphics). SDL is also popular, however it is a C library (of course, you can still use C libraries with C++ if you really want to).