Hi Boris,
please, check http://root.cern.ch/phpBB2/viewtopic.php?t=1242
Check also $ROOTSYS/test/guiviewer.cxx
Regards. Valeriy
> Dear Rooters,
>
> I am based on example guitest.C provided with root 4-00-08f version.
> I was trying to compile three files which I attached to this letter with
> the next command:
>
> g++ `root-config --cflags --glibs` -o main main.cxx MyMain.cxx
>
> I got the next linking error:
>
> /usr/lib/gcc-lib/i386-redhat-linux/3.2.2/../../../crt1.o(.text+0x18): In
> function `_start':
> ../sysdeps/i386/elf/start.S:77: undefined reference to `main'
> collect2: ld returned 1 exit status
>
> Maybe this error not connected with root itself, if so, sorry for the
> question that should not be addressed in roottalk.
>
> Thank you very much,
> Boris.
>
>
> --
> ------------------------------------------------
> | Boris Skorodumov,
> | Graduate Student, Physics Department,
> | University of Notre Dame,
> | Notre Dame, IN 46556, USA
> | WWW: www.nd.edu/~bskorodo
> ------------------------------------------------
>
>
--------------------------------------------------------------------------------
> #include "MyMain.h"
>
> const char *nlabel[] = {
> "Up",
> "Down",
> "Left",
> "Right",
> };
>
> const Double_t ninit[] = {5,8,10,21};
>
>
> MyMainFrame::MyMainFrame(const TGWindow *p, UInt_t w, UInt_t h)
> {
> fMain = new TGMainFrame(p, w, h);
> fMain->Connect("CloseWindow()", "MyMainFrame", this, "CloseWindow()");
>
> fMenuBarLayout = new TGLayoutHints(kLHintsTop | kLHintsExpandX);
> fMenuBarItemLayout = new TGLayoutHints(kLHintsTop | kLHintsLeft, 0, 4, 0, 0);
> fMenuBarHelpLayout = new TGLayoutHints(kLHintsTop | kLHintsRight);
>
> fMenuFile = new TGPopupMenu(gClient->GetRoot());
> fMenuFile->AddEntry("&Open...", M_FILE_OPEN);
> fMenuFile->AddEntry("&Save", M_FILE_SAVE);
> fMenuFile->AddEntry("S&ave as...", M_FILE_SAVEAS);
> fMenuFile->AddEntry("&Close", -1);
> fMenuFile->AddSeparator();
> fMenuFile->AddEntry("&Print", M_FILE_PRINT);
> fMenuFile->AddEntry("P&rint setup...", M_FILE_PRINTSETUP);
> fMenuFile->AddSeparator();
> fMenuFile->AddEntry("E&xit", M_FILE_EXIT);
>
> fMenuFile->DisableEntry(M_FILE_SAVEAS);
> fMenuFile->HideEntry(M_FILE_PRINT);
>
>
> fMenuTest = new TGPopupMenu(gClient->GetRoot());
> fMenuTest->AddLabel("Test different features...");
> fMenuTest->AddSeparator();
> fMenuTest->AddEntry("&Dialog...", M_TEST_DLG);
> fMenuTest->AddEntry("&Message Box...", M_TEST_MSGBOX);
> fMenuTest->AddEntry("&Sliders...", M_TEST_SLIDER);
> fMenuTest->AddEntry("Sh&utter...", M_TEST_SHUTTER);
> fMenuTest->AddEntry("&List Directory...", M_TEST_DIRLIST);
> fMenuTest->AddEntry("&File List...", M_TEST_FILELIST);
> fMenuTest->AddEntry("&Progress...", M_TEST_PROGRESS);
> fMenuTest->AddEntry("&Number Entry...", M_TEST_NUMBERENTRY);
>
> fMenuHelp = new TGPopupMenu(gClient->GetRoot());
> fMenuHelp->AddEntry("&Contents", M_HELP_CONTENTS);
> fMenuHelp->AddEntry("&Search...", M_HELP_SEARCH);
> fMenuHelp->AddSeparator();
> fMenuHelp->AddEntry("&About", M_HELP_ABOUT);
>
>
> fMenuFile->Connect("Activated(Int_t)", "TestMainFrame", this,
> "HandleMenu(Int_t)");
> fMenuView->Connect("Activated(Int_t)", "TestMainFrame", this,
> "HandleMenu(Int_t)");
> fMenuHelp->Connect("Activated(Int_t)", "TestMainFrame", this,
> "HandleMenu(Int_t)");
>
> fF1 = new TGVerticalFrame(fMain, 200, 300);
>
> fL1 = new TGLayoutHints(kLHintsTop | kLHintsLeft, 2, 2, 2, 2);
>
> fMain ->AddFrame(fF1, fL1);
>
> fHor1 = new TGHorizontalFrame(fF1, 200, 30);
> fF1->AddFrame(fHor1, fL1);
> fCheck = new TGCheckButton(fHor1, "PSD Detector", 4);
> fHor1->AddFrame(fCheck, fL1);
>
> for (int i = 0; i < 4; i++) {
>
> fF[i] = new TGHorizontalFrame(fF1, 200, 30);
> fF1->AddFrame(fF[i], fL1);
> fNumericEntries[i] = new TGNumberEntry(fF[i], ninit[i], 3, i + 20,
> (TGNumberFormat::EStyle) 0);
> fF[i]->AddFrame(fNumericEntries[i], fL1);
> fLabel[i] = new TGLabel(fF[i], nlabel[i]);
> fF[i]->AddFrame(fLabel[i], fL1);
> }
>
> fHor2 = new TGHorizontalFrame(fF1, 200, 30);
> fF1->AddFrame(fHor2, fL1);
> fExit = new TGTextButton(fHor2, "Exit", 2);
> fHor2->AddFrame(fExit, fL1);
>
> fExit->SetCommand(".q" );
>
>
> fMain->MapSubwindows();
>
> fMain->Resize();
>
> fMain->SetWindowName("LdfToRoot Program");
>
> fMain->MapWindow();
> }
>
> MyMainFrame::~MyMainFrame()
> {
> delete fExit;
> delete fCheck;
>
> delete fF1;
> delete fF2;
> delete [] fF;
> delete fHor1;
> delete fHor2;
> delete [] fLabel;
> delete [] fNumericEntries;
>
> delete fL1;
> delete fL2;
> delete fL3;
>
>
> delete fMenuBarLayout;
> delete fMenuBarItemLayout;
> delete fMenuBarHelpLayout;
>
> delete fMenuFile;
> delete fMenuTest;
> delete fMenuView;
> delete fMenuHelp;
>
> delete fMain;
> }
>
> void MyMainFrame::CloseWindow()
> {
> gApplication->Terminate(0);
> }
> void MyMainFrame::HandleMenu(Int_t id)
> {
>
> }
>
--------------------------------------------------------------------------------
> #include <TROOT.h>
> #include <TApplication.h>
> #include <TGClient.h>
> #include <TGFrame.h>
> #include <TGButton.h>
> #include <TGButtonGroup.h>
> #include <TGLabel.h>
> #include <TGNumberEntry.h>
> #include <TGFrame.h>
> #include <TGMenu.h>
> #include <RQ_OBJECT.h>
>
>
> enum ETestCommandIdentifiers {
> M_FILE_OPEN,
> M_FILE_SAVE,
> M_FILE_SAVEAS,
> M_FILE_PRINT,
> M_FILE_PRINTSETUP,
> M_FILE_EXIT,
>
> M_TEST_DLG,
> M_TEST_MSGBOX,
> M_TEST_SLIDER,
> M_TEST_SHUTTER,
> M_TEST_DIRLIST,
> M_TEST_FILELIST,
> M_TEST_PROGRESS,
> M_TEST_NUMBERENTRY,
>
> M_HELP_CONTENTS,
> M_HELP_SEARCH,
> M_HELP_ABOUT,
> };
>
> class MyMainFrame {
>
> RQ_OBJECT("MyMainFrame");
>
> private:
> TGMainFrame *fMain;
> TGTextButton *fExit;
> TGCheckButton *fCheck;
>
> TGVerticalFrame *fF1;
> TGVerticalFrame *fF2;
> TGHorizontalFrame *fF[4],*fHor1,*fHor2;
> TGLabel *fLabel[4];
> TGNumberEntry *fNumericEntries[4];
>
> TGLayoutHints *fL1;
> TGLayoutHints *fL2;
> TGLayoutHints *fL3;
>
> TGPopupMenu *fMenuFile, *fMenuTest, *fMenuView, *fMenuHelp;
> TGPopupMenu *fCascadeMenu, *fCascade1Menu, *fCascade2Menu;
> TGLayoutHints *fMenuBarLayout, *fMenuBarItemLayout, *fMenuBarHelpLayout;
>
> public:
> MyMainFrame(const TGWindow *p, UInt_t w, UInt_t h);
> virtual ~MyMainFrame();
>
> void CloseWindow();
> void HandleMenu(Int_t id);
>
> };
>
--------------------------------------------------------------------------------
>
> #include "MyMain.h"
>
> #ifdef STANDALONE
> TROOT root("Ldf Test", "Ldf Test");
>
> int main(int argc, char **argv)
> {
> TApplication theApp("App", &argc, argv);
> MyMainFrame mainWin(gClient->GetRoot(), 400, 220);
> theApp.Run();
>
> return 0;
> }
> #endif
>
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