focus in Xt programming

Hi, When I execute a program which I have compiled and linked (even one lifted out of the book by Kurt Wall et al) the code opens a window but the focus remains with the Shell Konsole. Focus follows all other application code okay. Any ideas? Second question: How do I specify that buttons should be of a fixed size? (main window follows my specified sizing) and how can I specify that buttons be displayed side by side? Regards, Colin