Hi there, i recently bought a dummy book for C++ to learn about programming, the very first project i had to create was a very simple program that is supposed to pop up a window and say "Hello World". I was able to build the program with no error but then when i clicked run, nothing happens. Can you tell me what i doing wrong? I followed the instructions of the book perfectly. My OS is win7 64bit, my codeblock version is 8.02, i was using GNU GCC Compilier.