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Use GetTextExtent or one of its variants to get the width. However, it is usually best to use GetTextMetrics to get the height. TEXTMETRIC.tmHeight represents the absolute height of the tallest character for a given font. I'm fairly certain that GetTextExtent will only give you the height of whatever characters are in the string and that may vary according to the characters.
"There's a slew of slip 'twixt cup and lip"
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Need some help, please. This is my first shot at using the MFC wizard.
I choose MFC Appwizard (exe).
Single doc
No doc/view support
No Database
ActiveX
MFC Standard
Static Link Library
Finish
Compile and Link Good.
Go to View
Class Wizard
Add Class
From Type Lib
AWREM32.TBL from Symantec (PCAnywhere)
Compile and link good
Add function to my Application .CPP
Compile
C2065 Undeclared Identifier.
Can anyone please tell me what I am doing wrong?
Thanks.
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Check for typos! What does the function look like? Are you declaring your variables (they are case-sensitive)? For instance...
int myFunction()
{
int x=0;
return y;
}
Jeremy L. Falcon
"The One Who Said, 'The One Who Said...'"
<nobr>
Homepage : Feature Article : Sonork = 100.16311
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Hi Jeremy,
The TLB adds a .H and a .CPP file to my project. This is a class
that was added. I have checked these for spelling and declarations.
All seem to be fine. Is there anything special I have to do to get a
class to work? I can add an extern for the function I added to my
base code and can get thru the compile, but the link fails. I was
under the impression that when files are added to your project, they
are accessible by the base program. It appears this is not
happening. I have attached the TLB I am trying to use. Maybe you
can tell me what is wrong.
Thanks for your help.
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Did you #include the header file in the other CPP file you wanted to use the class in?
Jeremy L. Falcon
"The One Who Said, 'The One Who Said...'"
<nobr>
Homepage : Feature Article : Sonork = 100.16311
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I tried that. No Change. The include is actually in the AWREM32.CPP file.
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Barry R. Martin wrote:
I tried that. No Change. The include is actually in the AWREM32.CPP file.
You'll need to include it in your own CPP file too. Can you post some sample code for us to look at?
Jeremy L. Falcon
"The One Who Said, 'The One Who Said...'"
<nobr>
Homepage : Feature Article : Sonork = 100.16311
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Here is the testa app and the awrem32 files. I have played with this and tried to include the various code in my testa app, but to no avail. I am running MS Visual C++ Rel 6. If you have this environment, just follow the original steps I took and include the TLB I sent you. It should fail the same way. I am really confused and I thank you for taking the time to look at my problem.
// testa.cpp : Defines the class behaviors for the application.
//
#include "stdafx.h"
#include "testa.h"
#include "awrem32.h" // <---- ADDED AS PER YOUR SUGGESTION
#include "MainFrm.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CTestaApp
BEGIN_MESSAGE_MAP(CTestaApp, CWinApp)
//{{AFX_MSG_MAP(CTestaApp)
ON_COMMAND(ID_APP_ABOUT, OnAppAbout)
// NOTE - the ClassWizard will add and remove mapping macros here.
// DO NOT EDIT what you see in these blocks of generated code!
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CTestaApp construction
CTestaApp::CTestaApp()
{
// TODO: add construction code here,
// Place all significant initialization in InitInstance
GetError(); // <---- THIS IS THE FUNCTION I AM TYING TO USE!
}
/////////////////////////////////////////////////////////////////////////////
// The one and only CTestaApp object
CTestaApp theApp;
/////////////////////////////////////////////////////////////////////////////
// CTestaApp initialization
BOOL CTestaApp::InitInstance()
{
AfxEnableControlContainer();
// Standard initialization
// If you are not using these features and wish to reduce the size
// of your final executable, you should remove from the following
// the specific initialization routines you do not need.
#ifdef _AFXDLL
Enable3dControls(); // Call this when using MFC in a shared DLL
#else
Enable3dControlsStatic(); // Call this when linking to MFC statically
#endif
// Change the registry key under which our settings are stored.
// TODO: You should modify this string to be something appropriate
// such as the name of your company or organization.
SetRegistryKey(_T("Local AppWizard-Generated Applications"));
// To create the main window, this code creates a new frame window
// object and then sets it as the application's main window object.
CMainFrame* pFrame = new CMainFrame;
m_pMainWnd = pFrame;
// create and load the frame with its resources
pFrame->LoadFrame(IDR_MAINFRAME,
WS_OVERLAPPEDWINDOW | FWS_ADDTOTITLE, NULL,
NULL);
// The one and only window has been initialized, so show and update it.
pFrame->ShowWindow(SW_SHOW);
pFrame->UpdateWindow();
return TRUE;
}
/////////////////////////////////////////////////////////////////////////////
// CTestaApp message handlers
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL
// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
// No message handlers
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
// App command to run the dialog
void CTestaApp::OnAppAbout()
{
CAboutDlg aboutDlg;
aboutDlg.DoModal();
}
/////////////////////////////////////////////////////////////////////////////
// CTestaApp message handlers
/ Machine generated IDispatch wrapper class(es) created with ClassWizard
#include "stdafx.h"
#include "awrem32.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// IAWREM32 properties
/////////////////////////////////////////////////////////////////////////////
// IAWREM32 operations
BOOL IAWREM32::FileXferFromHost(LPCTSTR HostFile, LPCTSTR RemoteFile)
{
BOOL result;
static BYTE parms[] =
VTS_BSTR VTS_BSTR;
InvokeHelper(0x1, DISPATCH_METHOD, VT_BOOL, (void*)&result, parms,
HostFile, RemoteFile);
return result;
}
BOOL IAWREM32::awConnect(LPCTSTR FileName)
{
BOOL result;
static BYTE parms[] =
VTS_BSTR;
InvokeHelper(0x2, DISPATCH_METHOD, VT_BOOL, (void*)&result, parms,
FileName);
return result;
}
BOOL IAWREM32::FileXferToHost(LPCTSTR HostFile, LPCTSTR RemoteFile)
{
BOOL result;
static BYTE parms[] =
VTS_BSTR VTS_BSTR;
InvokeHelper(0x3, DISPATCH_METHOD, VT_BOOL, (void*)&result, parms,
HostFile, RemoteFile);
return result;
}
CString IAWREM32::GetError()
{
CString result;
InvokeHelper(0x4, DISPATCH_METHOD, VT_BSTR, (void*)&result, NULL);
return result;
}
BOOL IAWREM32::ExecuteHostFile(LPCTSTR FileName)
{
BOOL result;
static BYTE parms[] =
VTS_BSTR;
InvokeHelper(0x5, DISPATCH_METHOD, VT_BOOL, (void*)&result, parms,
FileName);
return result;
}
BOOL IAWREM32::awDisconnect()
{
BOOL result;
InvokeHelper(0x6, DISPATCH_METHOD, VT_BOOL, (void*)&result, NULL);
return result;
}
short IAWREM32::ConnectionStatus()
{
short result;
InvokeHelper(0x7, DISPATCH_METHOD, VT_I2, (void*)&result, NULL);
return result;
}
long IAWREM32::CreateFolderOnHost(LPCTSTR FolderName)
{
long result;
static BYTE parms[] =
VTS_BSTR;
InvokeHelper(0x8, DISPATCH_METHOD, VT_I4, (void*)&result, parms,
FolderName);
return result;
}
// Machine generated IDispatch wrapper class(es) created with ClassWizard
/////////////////////////////////////////////////////////////////////////////
// IAWREM32 wrapper class
class IAWREM32 : public COleDispatchDriver
{
public:
IAWREM32() {} // Calls COleDispatchDriver default constructor
IAWREM32(LPDISPATCH pDispatch) : COleDispatchDriver(pDispatch) {}
IAWREM32(const IAWREM32& dispatchSrc) : COleDispatchDriver(dispatchSrc) {}
// Attributes
public:
// Operations
public:
BOOL FileXferFromHost(LPCTSTR HostFile, LPCTSTR RemoteFile);
BOOL awConnect(LPCTSTR FileName);
BOOL FileXferToHost(LPCTSTR HostFile, LPCTSTR RemoteFile);
CString GetError();
BOOL ExecuteHostFile(LPCTSTR FileName);
BOOL awDisconnect();
short ConnectionStatus();
long CreateFolderOnHost(LPCTSTR FolderName);
};
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Ok, I'll check my email when I get home. Right now I'm at work and behind a proxy server. 
Jeremy L. Falcon
"The One Who Said, 'The One Who Said...'"
<nobr>
Homepage : Feature Article : Sonork = 100.16311
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Here's the deal. You need to create an instance of the class. The instanced is called an object, hence Object-Oriented Programming (OOP). Try this instead...
IAWREM32 pcAny;
pcAny.GetError(); The class is IAWREM32 and you declare a variable (identifier) of that class, which in turn creates an instance of the class (an object). Then you can use dot notation to access public members of that class.
FYI, a function inside a class that performs some action is generally referred to as a method.
Good luck!
Jeremy L. Falcon
"The One Who Said, 'The One Who Said...'"
<nobr>
Homepage : Feature Article : Sonork = 100.16311
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Hi Jeremy,
I included the code you suggested in my base app. This was the result.
compiling...
testa.cpp
C:\PROGRAM FILES\MICROSOFT VISUAL STUDIO\MyProjects\testa\testa.cpp(15) : error C2146: syntax error : missing ';' before identifier 'pcAny'
C:\PROGRAM FILES\MICROSOFT VISUAL STUDIO\MyProjects\testa\testa.cpp(15) : error C2501: 'IAREM32' : missing storage-class or type specifiers
C:\PROGRAM FILES\MICROSOFT VISUAL STUDIO\MyProjects\testa\testa.cpp(15) : fatal error C1004: unexpected end of file found
// testa.cpp : Defines the class behaviors for the application.
//
#include "stdafx.h"
#include "testa.h"
#include "awrem32.h" // <---- ADDED AS PER YOUR SUGGESTION
#include "MainFrm.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
IAREM32 pcAny; // <----- NEW CODE
/////////////////////////////////////////////////////////////////////////////
// CTestaApp
BEGIN_MESSAGE_MAP(CTestaApp, CWinApp)
//{{AFX_MSG_MAP(CTestaApp)
ON_COMMAND(ID_APP_ABOUT, OnAppAbout)
// NOTE - the ClassWizard will add and remove mapping macros here.
// DO NOT EDIT what you see in these blocks of generated code!
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CTestaApp construction
CTestaApp::CTestaApp()
{
// TODO: add construction code here,
// Place all significant initialization in InitInstance
pcAny.GetError(); // <---- THIS IS THE FUNCTION I AM TRYING TO USE!
}
/////////////////////////////////////////////////////////////////////////////
// The one and only CTestaApp object
etc......
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It's a typo.
IAREM32 pcAny; Should be...
IAWREM32 pcAny; Good luck!
Jeremy L. Falcon
"The One Who Said, 'The One Who Said...'"
<nobr>
Homepage : Feature Article : Sonork = 100.16311
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Hi Jeremy,
Got it to go. One more question, if I may. I have inserted code to display a statement with a printf at the construcion function, as is indicated by the base code. I pop the window, but don't see the printf output. I have written alot of "C" code from scratch, but in a DOS environment, so I am not used to the base codes as is created in the windows environment. Am I placing my code in the wrong place or am I missing something else. Your help is always appreciated.
// testa.cpp : Defines the class behaviors for the application.
//
#include "stdafx.h"
#include "testa.h"
#include "awrem32.h"
#include "io.h"
#include "conio.h"
#include "MainFrm.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
IAWREM32 pcAny;
/////////////////////////////////////////////////////////////////////////////
// CTestaApp
BEGIN_MESSAGE_MAP(CTestaApp, CWinApp)
//{{AFX_MSG_MAP(CTestaApp)
ON_COMMAND(ID_APP_ABOUT, OnAppAbout)
// NOTE - the ClassWizard will add and remove mapping macros here.
// DO NOT EDIT what you see in these blocks of generated code!
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CTestaApp construction
CTestaApp::CTestaApp() // <---- THIS IS WHERE I THOUGHT THE CODE SHOULD GO
{
// TODO: add construction code here,
// Place all significant initialization in InitInstance
CString rc;
rc = pcAny.GetError();
printf( "Return Code = %s/n", rc );
getch();
}
/////////////////////////////////////////////////////////////////////////////
// The one and only CTestaApp object
CTestaApp theApp;
/////////////////////////////////////////////////////////////////////////////
// CTestaApp initialization
BOOL CTestaApp::InitInstance()
{
AfxEnableControlContainer();
// Standard initialization
// If you are not using these features and wish to reduce the size
// of your final executable, you should remove from the following
// the specific initialization routines you do not need.
#ifdef _AFXDLL
Enable3dControls(); // Call this when using MFC in a shared DLL
#else
Enable3dControlsStatic(); // Call this when linking to MFC statically
#endif
// Change the registry key under which our settings are stored.
// TODO: You should modify this string to be something appropriate
// such as the name of your company or organization.
SetRegistryKey(_T("Local AppWizard-Generated Applications"));
// To create the main window, this code creates a new frame window
// object and then sets it as the application's main window object.
CMainFrame* pFrame = new CMainFrame;
m_pMainWnd = pFrame;
// create and load the frame with its resources
pFrame->LoadFrame(IDR_MAINFRAME,
WS_OVERLAPPEDWINDOW | FWS_ADDTOTITLE, NULL,
NULL);
// The one and only window has been initialized, so show and update it.
pFrame->ShowWindow(SW_SHOW);
pFrame->UpdateWindow();
return TRUE;
}
/////////////////////////////////////////////////////////////////////////////
// CTestaApp message handlers
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL
// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
// No message handlers
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
// App command to run the dialog
void CTestaApp::OnAppAbout()
{
CAboutDlg aboutDlg;
aboutDlg.DoModal();
}
/////////////////////////////////////////////////////////////////////////////
// CTestaApp message handlers
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You'll want to use something else. I sent you an email with a couple of functions, but here's a sample to get you going...
void CChildView::OnPaint()
{
CPaintDC dc(this);
CRect rect;
CString data = "Howdy!";
CWnd *wnd = dc.GetWindow();
::GetClientRect(wnd->m_hWnd, &rect);
dc.DrawText(data, data.GetLength(), &rect, DT_CENTER|DT_VCENTER|DT_SINGLELINE);
}Use ChildView.cpp instead. You'll have to #include awrem32.h in this file also and don't forget a declare a variable (object) that's in scope.
BTW, I used my own string because GetError() didn't return anything. I assume that's because there were no errors. 
Also, if you haven't gotten a book yet on Windows programming then you may want to do it pronto. I can tell you from experience, this is not optional.
Jeremy L. Falcon
"The One Who Said, 'The One Who Said...'"
<nobr>
Homepage : Feature Article : Sonork = 100.16311
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Hi Jeremy,
all the books I have are "C" without windows. Do you have a recommendation for a good book with lots of samples. I can usually take a sample and modify it the way I need it. I'm pretty good at that. I am trying the new sample code as we speak. thanks again for your help.
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Hi Jeremy,
Tried the code you sent. Got it working EXCEPT, can't seem to get a CR\LF to work so the messages go down the page. Any ideas?
void CChildView::OnPaint()
{
CPaintDC dc(this); // device context for painting
// TODO: Add your message handler code here
// Do not call CWnd::OnPaint() for painting messages
CRect rect;
char* data = " Dialing xxxxxx\r\n";
CWnd *wnd = dc.GetWindow();
::GetClientRect(wnd->m_hWnd, &rect);
dc.DrawText(data, strlen(data), &rect, DT_WORDBREAK);
dc.SetTextAlign(TA_RIGHT);
// Dialing the Host
pcAny.awConnect("xxxxxx");
rc = pcAny.GetError();
data = " \r\nConnection = ";
dc.DrawText(data, strlen(data), &rect, DT_RIGHT|DT_WORDBREAK);
dc.SetTextAlign(TA_UPDATECP);
dc.DrawText(rc, rc.GetLength(), &rect, DT_RIGHT|DT_WORDBREAK);
dc.SetTextAlign(TA_UPDATECP);
// Getting Status of Connection
rc2 = pcAny.ConnectionStatus();
data = " \r\nConnection Status = ";
dc.DrawText(data, strlen(data), &rect, DT_RIGHT|DT_WORDBREAK);
dc.SetTextAlign(TA_UPDATECP);
itoa(rc2, data, 10);
dc.DrawText(data, strlen(data), &rect, DT_RIGHT|DT_WORDBREAK);
dc.SetTextAlign(TA_UPDATECP);
// Sending the Order(s)
data = " \r\nSending Orders\r\n";
dc.DrawText(data, strlen(data), &rect, DT_RIGHT|DT_WORDBREAK);
dc.SetTextAlign(TA_UPDATECP);
pcAny.FileXferToHost("TESTFILE.TXT","TESTFILE.TXT");
rc = pcAny.GetError();
data = " \r\nSending = ";
dc.DrawText(data, strlen(data), &rect, DT_RIGHT|DT_WORDBREAK);
dc.SetTextAlign(TA_UPDATECP);
dc.DrawText(rc, rc.GetLength(), &rect, DT_RIGHT|DT_WORDBREAK);
dc.SetTextAlign(TA_UPDATECP);
// Getting the New Catalog
data = " \r\nUpdating Catalog\r\n";
dc.DrawText(data, strlen(data), &rect, DT_RIGHT|DT_WORDBREAK);
dc.SetTextAlign(TA_UPDATECP);
pcAny.FileXferFromHost("CATALOG.TXT","CATALOG.TXT");
rc = pcAny.GetError();
data = " \r\nUpdating = ";
dc.DrawText(data, strlen(data), &rect, DT_RIGHT|DT_WORDBREAK);
dc.SetTextAlign(TA_UPDATECP);
dc.DrawText(rc, rc.GetLength(), &rect, DT_RIGHT|DT_WORDBREAK);
dc.SetTextAlign(TA_UPDATECP);
// Host Disconnect
data = " \r\nDisconnecting from Host\r\n";
dc.DrawText(data, strlen(data), &rect, DT_RIGHT|DT_WORDBREAK);
dc.SetTextAlign(TA_UPDATECP);
pcAny.awDisconnect();
delete pcAny;
}
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Hi Jeremy,
The code acually compiled. Thanks a bunch. I will now attept to put in the rest of the functions and see if the thing will work.
Thanks again.
I owe you one.
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Well, this damn thing is really trying my limited patience..
1) It won't save changes to the projects. It asks me if I want to save changes, but after doing so, the changes aren't there.
2) The .sln file ("solution", what a wonderfully cute term) it creates won't open; probably related to the above.
3) I get internal compiler errors when compiling anything that contains ATL (and I'm not even sure why this happens, since we don't use ATL):
C:\Program Files\Microsoft Visual Studio .NET\Vc7\atlmfc\include\atlsimpstr.h(583): fatal error C1001: INTERNAL COMPILER ERROR
(compiler file 'msc1.cpp', line 2844)
Please choose the Technical Support command on the Visual C++
Help menu, or open the Technical Support help file for more information
Are there known solutions for this nonsense?
TIA
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Jim A. Johnson wrote:
Are there known solutions for this nonsense?
(i just want to be the first to say it)
VC6
other than that, good luck
-c
Conscience is what hurts when everything else feels good.
Smaller Animals Software, Inc.
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VC7 works like a champ.
Tim Smith
I know what you're thinking punk, you're thinking did he spell check this document? Well, to tell you the truth I kinda forgot myself in all this excitement. But being this here's CodeProject, the most powerful forums in the world and would blow your head clean off, you've got to ask yourself one question, Do I feel lucky? Well do ya punk?
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Yup, not exactly a shocker. :/
Tim Smith
I know what you're thinking punk, you're thinking did he spell check this document? Well, to tell you the truth I kinda forgot myself in all this excitement. But being this here's CodeProject, the most powerful forums in the world and would blow your head clean off, you've got to ask yourself one question, Do I feel lucky? Well do ya punk?
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The resource studio also gone from Excellent (VC6.0) to a bag of shite (VC7.0)
Along with other minor quirks it looks like they compromised VC++ for other other noddy languages that the studio supports.
phew... glad i got that of my chest 
Normski. - Professional Windows Programmer
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