Class not visible
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I am a newbie to vc++. I did some C 15 years ago... but, normally, I'm a vb.net guy. However, my current job is VC++ and my boss wants me to place a class inside a .h and .cpp file that already has an existing class. I did this fine but when trying to define an instance of this class from another class, it seems invisible even though I have included the .h file. Here's my code: file1.h class Class1 { // definitions here }; class Class2 { // definitions here }; File1.cpp: #include "file1.h" Class1::SomeFunction() { } Class2::AnotherFunction() { } File 2.h #include "File1.h" class Class3 { Class2 cClass2; // not visible. }; Any ideas? Bill Dennis Orlando, FL
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I am a newbie to vc++. I did some C 15 years ago... but, normally, I'm a vb.net guy. However, my current job is VC++ and my boss wants me to place a class inside a .h and .cpp file that already has an existing class. I did this fine but when trying to define an instance of this class from another class, it seems invisible even though I have included the .h file. Here's my code: file1.h class Class1 { // definitions here }; class Class2 { // definitions here }; File1.cpp: #include "file1.h" Class1::SomeFunction() { } Class2::AnotherFunction() { } File 2.h #include "File1.h" class Class3 { Class2 cClass2; // not visible. }; Any ideas? Bill Dennis Orlando, FL
Are you using namespaces in file1.h ? What extactly do you mean by 'not visible' ? Are there some compiler errors ? Horror and moral terror are your friends. If they are not then they are enemies to be feared.
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Are you using namespaces in file1.h ? What extactly do you mean by 'not visible' ? Are there some compiler errors ? Horror and moral terror are your friends. If they are not then they are enemies to be feared.
No, no namespaces. Boss doesn;t want to use namespaces. Getting undefined class error when compiling on the line where I am insantiating a new class variable: Class2 cClass2; Bill Dennis Orlando, FL
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No, no namespaces. Boss doesn;t want to use namespaces. Getting undefined class error when compiling on the line where I am insantiating a new class variable: Class2 cClass2; Bill Dennis Orlando, FL
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No, no namespaces. Boss doesn;t want to use namespaces. Getting undefined class error when compiling on the line where I am insantiating a new class variable: Class2 cClass2; Bill Dennis Orlando, FL
Maybe there is a conflict between some
#definedirectives#ifndef DONT_INCLUDE_TWICE
#define DONT_INCLUDE_TWICEclass Class1
{};
#endif
#ifndef DONT_INCLUDE_TWICE
#define DONT_INCLUDE_TWICEclass Class2
{};
#endif
If DONT_INCLUDE_TWICE is already defined, the definition of Class2 will be skipped. Maybe you can post your header files here... Horror and moral terror are your friends. If they are not then they are enemies to be feared.
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Maybe there is a conflict between some
#definedirectives#ifndef DONT_INCLUDE_TWICE
#define DONT_INCLUDE_TWICEclass Class1
{};
#endif
#ifndef DONT_INCLUDE_TWICE
#define DONT_INCLUDE_TWICEclass Class2
{};
#endif
If DONT_INCLUDE_TWICE is already defined, the definition of Class2 will be skipped. Maybe you can post your header files here... Horror and moral terror are your friends. If they are not then they are enemies to be feared.
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are you sure you're not having trouble with the class name ?? be careful, C/C++ is case sensitive (unlike VB/VB.NET)...
TOXCCT >>> GEII power
[toxcct][VisualCalc] -
No, no namespaces. Boss doesn;t want to use namespaces. Getting undefined class error when compiling on the line where I am insantiating a new class variable: Class2 cClass2; Bill Dennis Orlando, FL
billiam904 wrote: Boss doesn;t want to use namespaces. Then don't tell him/her that you can't get away from using the global namespace!
"One must learn from the bite of the fire to leave it alone." - Native American Proverb
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I am a newbie to vc++. I did some C 15 years ago... but, normally, I'm a vb.net guy. However, my current job is VC++ and my boss wants me to place a class inside a .h and .cpp file that already has an existing class. I did this fine but when trying to define an instance of this class from another class, it seems invisible even though I have included the .h file. Here's my code: file1.h class Class1 { // definitions here }; class Class2 { // definitions here }; File1.cpp: #include "file1.h" Class1::SomeFunction() { } Class2::AnotherFunction() { } File 2.h #include "File1.h" class Class3 { Class2 cClass2; // not visible. }; Any ideas? Bill Dennis Orlando, FL
I just put your three files into an existing project and it compiled fine. The problem must lie with code that has not been shown.
"One must learn from the bite of the fire to leave it alone." - Native American Proverb
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I just put your three files into an existing project and it compiled fine. The problem must lie with code that has not been shown.
"One must learn from the bite of the fire to leave it alone." - Native American Proverb
I am attempting to paste some code here but due to contract restrictions, I can't paste it all. sharewaredlg.h: #if !defined(AFX_SHAREWAREDLG_H__609C8E03_67C4_11D3_A859_00000E00ECA4__INCLUDED_) #define AFX_SHAREWAREDLG_H__609C8E03_67C4_11D3_A859_00000E00ECA4__INCLUDED_ #if _MSC_VER >= 1000 #pragma once #endif // _MSC_VER >= 1000 #include "RegisterDlg.h" #include "WavRead.h" class CSharewareDlg : public CDialog { }; class CDemoAudio { private: CWavRead m_cWavRead; public: BYTE *ReadDemoIntoBuffer(); void PlayBuffer(BYTE *pDemoBuffer, WAVEHDR *hdrDemo, DWORD dwDataBufferSize); BYTE *GetDemoBuffer(); DWORD GetDemoSize(); protected: // variables DWORD dwOutDataSize; BYTE* m_pbyDemoBuffer; }; //{{AFX_INSERT_LOCATION}} // Microsoft Developer Studio will insert additional declarations immediately before the previous line. #endif // !defined(AFX_SHAREWAREDLG_H__609C8E03_67C4_11D3_A859_00000E00ECA4__INCLUDED_) SingleDlg.h: #if !defined(AFX_SINGLEDLG_H__B2588407_6984_11D1_A856_444553540000__INCLUDED_) #define AFX_SINGLEDLG_H__B2588407_6984_11D1_A856_444553540000__INCLUDED_ #if _MSC_VER >= 1000 #pragma once #endif // _MSC_VER >= 1000 // Shareware stuff #include "SharewareDlg.h" struct THREADPARMS_RECORD { CWnd *pWnd; CSingleAlg *pckSingleAlg; CWavWrite *pWavWrite; CWavRecord *pWavRecord; // BD 10/05 ADDED PARM FOR CWAVREAD CWavRead *pWavRead; // BD 10/05 ADDED DEMO PARMS. CDemoAudio *pDemoAudio; // error here undefined class. BYTE *pbyDemoBuffer; int *pnRegLevel; // ========================= BYTE *pbyBuffer; int *pnBufferSize; CString *pstrCurFile; CString *pstrCurFilePath; CEvent *pEvent; CCriticalSection *pCriticalSection; int *pnStop; }; class CSingleDlg : public CDialog { protected: // Program variables CSingleAlg m_ckSingleAlg; CWavWrite m_cWavWrite; CWavRecord m_cWavRecord; CWavRead m_cWavRead; // =========DEMO==================== // Demo variables BD 10/05 CDemoAudio m_cDemoAudio; // Error here. m_cDemoAudio utilizing Undefined class. // ================================= //{{AFX_INSERT_LOCATION}} // Microsoft Developer Studio will insert additional declarations immediately before the previous line. #endif // !defined(AFX_SINGLEDLG_H__B2588407_6984_11D1_A856_444553540000__INCLUDED_)
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I am attempting to paste some code here but due to contract restrictions, I can't paste it all. sharewaredlg.h: #if !defined(AFX_SHAREWAREDLG_H__609C8E03_67C4_11D3_A859_00000E00ECA4__INCLUDED_) #define AFX_SHAREWAREDLG_H__609C8E03_67C4_11D3_A859_00000E00ECA4__INCLUDED_ #if _MSC_VER >= 1000 #pragma once #endif // _MSC_VER >= 1000 #include "RegisterDlg.h" #include "WavRead.h" class CSharewareDlg : public CDialog { }; class CDemoAudio { private: CWavRead m_cWavRead; public: BYTE *ReadDemoIntoBuffer(); void PlayBuffer(BYTE *pDemoBuffer, WAVEHDR *hdrDemo, DWORD dwDataBufferSize); BYTE *GetDemoBuffer(); DWORD GetDemoSize(); protected: // variables DWORD dwOutDataSize; BYTE* m_pbyDemoBuffer; }; //{{AFX_INSERT_LOCATION}} // Microsoft Developer Studio will insert additional declarations immediately before the previous line. #endif // !defined(AFX_SHAREWAREDLG_H__609C8E03_67C4_11D3_A859_00000E00ECA4__INCLUDED_) SingleDlg.h: #if !defined(AFX_SINGLEDLG_H__B2588407_6984_11D1_A856_444553540000__INCLUDED_) #define AFX_SINGLEDLG_H__B2588407_6984_11D1_A856_444553540000__INCLUDED_ #if _MSC_VER >= 1000 #pragma once #endif // _MSC_VER >= 1000 // Shareware stuff #include "SharewareDlg.h" struct THREADPARMS_RECORD { CWnd *pWnd; CSingleAlg *pckSingleAlg; CWavWrite *pWavWrite; CWavRecord *pWavRecord; // BD 10/05 ADDED PARM FOR CWAVREAD CWavRead *pWavRead; // BD 10/05 ADDED DEMO PARMS. CDemoAudio *pDemoAudio; // error here undefined class. BYTE *pbyDemoBuffer; int *pnRegLevel; // ========================= BYTE *pbyBuffer; int *pnBufferSize; CString *pstrCurFile; CString *pstrCurFilePath; CEvent *pEvent; CCriticalSection *pCriticalSection; int *pnStop; }; class CSingleDlg : public CDialog { protected: // Program variables CSingleAlg m_ckSingleAlg; CWavWrite m_cWavWrite; CWavRecord m_cWavRecord; CWavRead m_cWavRead; // =========DEMO==================== // Demo variables BD 10/05 CDemoAudio m_cDemoAudio; // Error here. m_cDemoAudio utilizing Undefined class. // ================================= //{{AFX_INSERT_LOCATION}} // Microsoft Developer Studio will insert additional declarations immediately before the previous line. #endif // !defined(AFX_SINGLEDLG_H__B2588407_6984_11D1_A856_444553540000__INCLUDED_)
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billiam904 wrote: Boss doesn;t want to use namespaces. Then don't tell him/her that you can't get away from using the global namespace!
"One must learn from the bite of the fire to leave it alone." - Native American Proverb
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It's *got* to be something in my SharewareDlg.h file because I moved my class to a separate file and it worked fine. Thanks. Bill Dennis
Check to see if you have a copy of SharewareDlg.h in some other directory in the include path. You might be adding your class in a different file than the one the compiler is picking. -- jlr http://jlamas.blogspot.com/[^]
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Check to see if you have a copy of SharewareDlg.h in some other directory in the include path. You might be adding your class in a different file than the one the compiler is picking. -- jlr http://jlamas.blogspot.com/[^]
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Wish I could. He wants me to do it the way he tells me to do it. Would I have to include the .NET framework if I use namespaces?
Bill Dennis wrote: Would I have to include the .NET framework if I use namespaces? No. Namespaces have nothing to do with the .NET framework. It's just the name of a declarative region in your code. All programs use (or have use of) the global namespace. If you use STL, you will see references to the
stdnamespace.
"One must learn from the bite of the fire to leave it alone." - Native American Proverb
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I fixed the problem by moving my class to the very beginning of SharewareDlg.h before the if !defined statement. Thanks, guys.
Anonymous wrote: I fixed the problem by moving my class to the very beginning of SharewareDlg.h before the if !defined statement. I think you fixed the symptom, not the problem... :) Anonymous wrote: Thanks, guys. You're welcome. -- jlr http://jlamas.blogspot.com/[^]