// 打开文件
wxfiledialog *dlg = new wxfiledialog(this, "open a text file", "", "",
"all files(*.*)|*.*|text files(*.txt)|*.txt",
wxopen, wxdefaultposition);
if(dlg->showmodal()==wxid_ok)
{
m_ptextctrl->loadfile(dlg->getpath());
setstatustext(dlg->getfilename(),0);