| Forum List • Thread List • Refresh • New Topic • Search • Previous • Next  1  |  1. undefined reference problem#4970 Posted by: 2004-08-11 22:38:13 | this is my code:
class BasicFrame : public wxFrame
{
public:
BasicFrame( const wxChar *title,
int xpos, int ypos,
int width, int height);
~BasicFrame();
wxTextCtrl *theText;
wxMenuBar *menuBar;
wxMenu *fileMenu;
wxMenu *databaseMenu;
wxButton *button;//
wxStaticText *dytext;///
void OnOpenFile (wxCommandEvent & event);
void OnAbout (wxCommandEvent & event);
void OnExit (wxCommandEvent & event);
void OnButtonSelect (wxCommandEvent & event);
void OnConnect (wxCommandEvent & event);
DECLARE_EVENT_TABLE()
};
#endif
// For compilers that supports precompilation , includes “wx/wx.h”
#include "wx/wxprec.h"
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#include "basic.h"
#include "wx/db.h"
#include "wx/dbtable.h"
IMPLEMENT_APP(BasicApplication)
bool BasicApplication::OnInit()
{
BasicFrame *frame
= new BasicFrame
("wxWindows Basic Steps - Step 1:"
" A simple application",
50, 50, 200, 200);
frame->Show(TRUE);
SetTopWindow(frame);
return TRUE;
}
BasicFrame::BasicFrame(const wxChar *title,int xpos, int ypos, int width, int height)
: wxFrame( (wxFrame *) NULL, -1, title,wxPoint(xpos, ypos),wxSize(width, height))
{
theText = (wxTextCtrl *) NULL;
/*theText = new wxTextCtrl( this, -1, wxString("This is a text control\n\n"
"The text control supports"
" basic text editing operations\n"
"along with copy, cut, paste, "
"delete, select all and undo.\n\n"
"Right click on the control"
" to see the pop-up menu.\n"
),
wxDefaultPosition ,
wxDefaultSize,
wxTE_MULTILINE
);*/
fileMenu = new wxMenu;
fileMenu->Append(BASIC_OPEN, "&Open file","open an existing file ");
fileMenu->Append(BASIC_ABOUT, "&About","who wrote this");
fileMenu->AppendSeparator();
fileMenu->Append(BASIC_EXIT, "E&xit","exit this appplication");
databaseMenu = new wxMenu;
databaseMenu->Append(BASIC_CONNECT, "&Connect","connect to database ");
menuBar = new wxMenuBar;
menuBar->Append(fileMenu, "&File");
menuBar->Append(databaseMenu,"&Database");
SetMenuBar(menuBar);
CreateStatusBar(3);
SetStatusText(_T("Welcome TO WSOS XP!!"));///
wxButton *button =(wxButton*)NULL;//
button = new wxButton(this,BUTTON_SELECT,"Button!",wxPoint(300,300),wxSize(-1,-1));//
theText = new wxTextCtrl(this,-1,"DINGGENIUS",wxPoint(225,20),wxSize(200,20),0,wxDefaultValidator, "Dingyao");
dytext = new wxStaticText(this,-1,"NO More Strawberry!!!", wxPoint(20,20),wxSize(200,20),0,"Dingyao");
}
BEGIN_EVENT_TABLE (BasicFrame, wxFrame)
EVT_MENU ( BASIC_EXIT, BasicFrame::OnExit)
EVT_MENU ( BASIC_ABOUT, BasicFrame::OnAbout)
EVT_MENU ( BASIC_OPEN, BasicFrame::OnOpenFile)
EVT_MENU ( BASIC_CONNECT, BasicFrame::OnConnect)
EVT_BUTTON ( BUTTON_SELECT, BasicFrame::OnButtonSelect)
END_EVENT_TABLE()
BasicFrame::~BasicFrame()
{
}
void BasicFrame::OnButtonSelect(wxCommandEvent & event)
{
wxString t2 = theText->GetLineText(0);
//a class called wxMessageDialog
wxMessageDialog aboutDialog( this, t2, "About Basic", wxOK | wxCANCEL);
aboutDialog.ShowModal();
}
void BasicFrame::OnOpenFile (wxCommandEvent & event)
{
theText->LoadFile("data.txt");
}
void BasicFrame::OnAbout (wxCommandEvent & event)
{ wxString t = TITLE;
t.append( _T("\nDB 2001"));
wxMessageDialog
aboutDialog
( this, t, "About Basic", wxOK | wxCANCEL);
aboutDialog.ShowModal();
}
void BasicFrame::OnExit (wxCommandEvent & event)
{
Close(TRUE);
}
void BasicFrame::OnConnect(wxCommandEvent & event)
{
///*
wxDbConnectInf *DbConnectInf =NULL;
wxDb *db =NULL ; // The database connection
wxDbTable *table= NULL; // The data table to access
wxChar FirstName[50+1]; // buffer for data from column "FIRST_NAME"
wxChar LastName[50+1]; // buffer for data from column "LAST_NAME"
bool errorOccured = FALSE;
const wxChar tableName[] = "CONTACTS";
const UWORD numTableColumns = 2; // Number of bound columns
FirstName[0] = 0;
LastName[0] = 0;
DbConnectInf = new wxDbConnectInf(NULL,"MyDSN","MyUserName", "MyPassword");
if (!DbConnectInf || !DbConnectInf->GetHenv())
{
wxMessageBox("Unable to allocate an ODBC environment handle",
"DB CONNECTION ERROR", wxOK | wxICON_EXCLAMATION);
return;
}
// Get a database connection from the cached connections
db = wxDbGetConnection(DbConnectInf);
// Create the table connection
table = new wxDbTable(db, tableName, numTableColumns, "",
!wxDB_QUERY_ONLY, "");
//
// Bind the columns that you wish to retrieve. Note that there must be
// 'numTableColumns' calls to SetColDefs(), to match the wxDbTable definition
//
// Not all columns need to be bound, only columns whose values are to be
// returned back to the client.
//
table->SetColDefs(0, "FIRST_NAME", DB_DATA_TYPE_VARCHAR, FirstName,
SQL_C_CHAR, sizeof(FirstName), TRUE, TRUE);
table->SetColDefs(1, "LAST_NAME", DB_DATA_TYPE_VARCHAR, LastName,
SQL_C_CHAR, sizeof(LastName), TRUE, TRUE);
// Open the table for access
table->Open();
// Set the WHERE clause to limit the result set to only
// return all rows that have a value of 'GEORGE' in the
// FIRST_NAME column of the table.
table->SetWhereClause("FIRST_NAME = 'GEORGE'");
// Result set will be sorted in ascending alphabetical
// order on the data in the 'LAST_NAME' column of each row
table->SetOrderByClause("LAST_NAME");
// No other tables (joins) are used for this query
table->SetFromClause("");
// Instruct the datasource to perform a query based on the
// criteria specified above in the where/orderBy/from clauses.
if (!table->Query())
{
wxMessageBox("Error on Query()","ERROR!",
wxOK | wxICON_EXCLAMATION);
errorOccured = TRUE;
}
wxString msg;
// Start and continue reading every record in the table
// displaying info about each record read.
while (table->GetNext())
{
// msg.Printf("Row #%lu -- First Name : %s Last Name is %s",
// table->GetRowNum(), FirstName, LastName);
// wxMessageBox(msg, "Data", wxOK | wxICON_INFORMATION, NULL);
}
// If the wxDbTable instance was successfully created
// then delete it as I am done with it now.
if (table)
{
delete table;
table = NULL;
}
// If we have a valid wxDb instance, then free the connection
// (meaning release it back in to the cache of datasource
// connections) for the next time a call to wxDbGetConnection()
// is made.
if (db)
{
wxDbFreeConnection(db);
db = NULL;
}
// The program is now ending, so we need to close
// any cached connections that are still being
// maintained.
wxDbCloseConnections();
// Release the environment handle that was created
// for use with the ODBC datasource connections
delete DbConnectInf;
//*/
}
compiler settings:-D_X86_=1 -DWIN32 -DWINVER=0x0400 -D__WIN95__ -D__GNUWIN32__ -D__WIN32__ -mthreads -DSTRICT -D__WXMSW__ -D__WINDOWS__ -Wall -fno-pcc-struct-return -O2 -fno-rtti -fno-exceptions
linker settings:-lwxmswu -lstdc++ -lgcc -lodbc32 -lwsock32 -lwinspool -lwinmm -lshell32 -lcomctl32 -lctl3d32 -ladvapi32 -lopengl32 -lglu32 -lole32 -loleaut32 -luuid
error msg:
[Linker error] undefined reference to `wxDbTable::SetColDefs(unsigned short, wxString const&, int, void*, short, int, bool, bool, bool, bool)'
[Linker error] undefined reference to `wxDbTable::Open(bool, bool)'
[Linker error] undefined reference to `wxDbConnectInf::wxDbConnectInf(void*, wxString const&, wxString const&, wxString const&, wxString const&, wxString const&, wxString const&)'
etc
And wxuse ODBC set to 1 already.
So what's wrong. :<
help!
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