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struct shutterData_t {
const char *pixmap_name;
const char *tip_text;
Int_t id;
TGButton *button;
}

shutterData_t histo_data[] = {
{ "h1_s.xpm", "TH1", 1001, 0 },
{ "h2_s.xpm", "TH2", 1002, 0 },
{ "h3_s.xpm", "TH3", 1003, 0 },
{ "profile_s.xpm", "TProfile", 1004, 0 },
{ 0, 0, 0, 0 }
}

shutterData_t function_data[] = {
{ "f1_s.xpm", "TF1", 2001, 0 },
{ "f2_s.xpm", "TF2", 2002, 0 },
{ 0, 0, 0, 0 }
}

shutterData_t tree_data[] = {
{ "ntuple_s.xpm", "TNtuple", 3001, 0 },
{ "tree_s.xpm", "TTree", 3002, 0 },
{ "chain_s.xpm", "TChain", 3003, 0 },
{ 0, 0, 0, 0 }
}