C / C++ / MFC

Re: Shortcut keys - Runtime?

2-Sep-05 23:39

How to add a Shortcut key at runtime into application's Accelerator table.

Jose Lamas Rios4-Sep-05 20:20

Jose Lamas Rios

4-Sep-05 20:20

You may try getting the current accelerator handle (e.g., m_hAccelTable in a CFrameWnd) and:

1 - Use CopyAcceleratorTable to obtain the current table into an array of ACCEL structures.
2 - Add more ACCEL structures to the array.
3 - Create a new table from the array using CreateAcceleratorTable
4 - Changing the current accelerator to the new one.
5 - Destroy the old accelerator using DestroyAcceleratorTable

It's just a suggestion. Never tried it.

An alternative would be to create a separate table in a derived window and use it in your override for PreTranslateMessage:

BOOL CYourWindow::PreTranslateMessage(MSG* pMsg)
{
   // m_hAccel is your own previously created accelerator
   if (m_hAccel != NULL && TranslateAccelerator(m_hWnd, m_hAccel, pMsg))
     return TRUE;
 
   // It's not in my table, let the base class do
   // the normal processing
   // assuming CYourWindow is derived from CYourWindowBase
   return CYourWindowBase::PreTranslateMessage(pMsg);
}

The above could be done in a class derived from CWinApp too.

Hope that helps,

--
jlr
http://jlamas.blogspot.com/[^]

Unicode Release?

G Haranadh2-Sep-05 23:13

2-Sep-05 23:13

Hello,
How can I get unicode build?
I got these two errors after my trying.

C:\haranadh\abc.cpp(185) : error C2664: 'lstrcpyW' : cannot convert parameter 1 from 'char [32]' to 'unsigned short *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
C:\haranadh\abc.cpp(187) : error C2665: 'AfxMessageBox' : none of the 2 overloads can convert parameter 1 from type 'char [32]'
Error executing cl.exe.

abc.exe - 2 error(s), 0 warning(s)

My code is as follows-
----------------------
struct ABCAAA
{
UINT cbSize;
DWORD dwMask;
DWORD dwEffects;
LONG yHeight;
LONG yOffset;
COLORREF crTextColor;
BYTE bCharSet;
BYTE bPitchAndFamily;
char szFaceName[32];
};

void CAbcDlg::OnMyButton()
{
ABCAAA cf;
lstrcpy(cf.szFaceName,_T("Wingdings 3"));
AfxMessageBox(cf.szFaceName);
}
-----
Here I changed some settings of vc++ to build my project in Unicode build.
1)I added in Project Settings->Link->Object/Librirary Modules-> version.lib Winmm.lib
2)Project Settings->C/C++->Preprocessor Definitions->WIN32,NDEBUG,_WINDOWS,_AFXDLL,_MBCS,UNICODE
-----
but I got errors. Previously before changes It works fine.
How can I get unicode build?
Tox, Alok or Anyone Please Help me.

Michael Dunn2-Sep-05 23:17

Michael Dunn

2-Sep-05 23:17

The error message is telling you exactly what's wrong. lstrcpyW() (the Unicode version of lstrcpy()) expects a unsigned short* (more commonly expressed as wchar_t* or LPWSTR) as the first parameter, but you're passing a char array. You probably want szFaceName to be a TCHAR array.

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | 1ClickPicGrabber | NEW~! CP SearchBar v3.0 | C++ Forum FAQ
#include "witty-quote.h"

G Haranadh2-Sep-05 23:24

2-Sep-05 23:24

Actually This is I am using as testing program.
But the structure in my actual program is predefined.
that is

typedef struct _charformat
{
UINT cbSize;
DWORD dwMask;
DWORD dwEffects;
LONG yHeight;
LONG yOffset;
COLORREF crTextColor;
BYTE bCharSet;
BYTE bPitchAndFamily;
char szFaceName[LF_FACESIZE];
} CHARFORMATA;

I am using an instance for that typedef.
Thanks for reply. Blush | :O

[Msg Deleted]

sunit53-Sep-05 0:21

sunit5

3-Sep-05 0:21

-change char szFaceName[32] to TCHAR szFaceName[32];;

G Haranadh3-Sep-05 0:26

3-Sep-05 0:26

I know that. Please check my previous reply.
That was predefined. Just here I wrote sample program.
Any way. Thanks for your reply.

problem in cutting string

Jose Lamas Rios3-Sep-05 11:23

Jose Lamas Rios

3-Sep-05 11:23

If you want to write code that can be compiled both in MBCS and Unicode you need to:

- Define all your char arrays as TCHAR arrays (e.g., TCHAR szFaceName[32])
- Write all char and string literals using _T macro (e.g., _T("Wingdings 3"))

Additionally, for the Unicode build, you need to:

- Define both UNICODE and _UNICODE
- Remove the define for MBCS
- Set in the linker settings wWinMainCRTStartup as the entry point

That being said, the struct ABCAAA is actually the CHARFORMAT structure, right? Take a look at richedit.h in the VS include files. You'll see a CHARFORMATA (defining szFaceName as a char[]), and a CHARFORMATW (defining szFaceName as a WCHAR[]). Then, you'll see CHARFORMAT defined as follows:

#if (_RICHEDIT_VER >= 0x0200)
#ifdef UNICODE
#define CHARFORMAT CHARFORMATW
#else
#define CHARFORMAT CHARFORMATA
#endif // UNICODE 
#else
#define CHARFORMAT CHARFORMATA
#endif // _RICHEDIT_VER >= 0x0200

So, it seems that CHARFORMATA is used even for Unicode builds, unless you also define _RICHEDIT_VER to 0x200 or more. See the following link for info about Rich Edit controls and their versions:
About Rich Edit Controls[^]

Then, if you are going to target 1.0 version, you'll keep using the CHARFORMATA struct, so your sample code should be written as follows:

void CAbcDlg::OnMyButton() 
{
   CHARFORMAT cf;
   int nMaxNameLen = (sizeof(cf.szFaceName)/sizeof(cf.szFaceName[0]))-1;
   strncpy(cf.szFaceName, "Wingdings 3", nMaxNameLen);
   cf.szFaceName[nMaxNameLen] = '\0';
 
   AfxMessageBox(A2T(cf.szFaceName));
}

This code should work in either MBCS or Unicode builds, for RichEdit version 1.0.

For RichEdit version 2.0 and higher, the code should be:

void CAbcDlg::OnMyButton() 
{
   CHARFORMAT cf;
   int nMaxNameLen = (sizeof(cf.szFaceName)/sizeof(cf.szFaceName[0]))-1;
   lstrcpyn(cf.szFaceName, _T("Wingdings 3"), nMaxNameLen);
   cf.szFaceName[nMaxNameLen] = _T('\0');
 
   AfxMessageBox(cf.szFaceName);
}

and that should again work for either Unicode or MBCS builds.

Hope that helps,

--
jlr
http://jlamas.blogspot.com/[^]

Ankit Aneja2-Sep-05 23:07

2-Sep-05 23:07

i am getting error in following code please help
see the function below
i get date as "Sep-05-2005" which i initially read in smonth
after that take from it smonth as Sep and using switch nmonth as 9
now after taking month and removing it from string -05-2005 is left then
comes day
nday=05
now 05-2005 is left
but when 05 is removed instead of -2005 only -20 is left
this error occurs when first time this function is called on exit
for 2, 3 or ___ no error occurs we get complete -2005
i find this in debug mode

BOOL CXmlData::FnCheckForValidDates(CString szEndDate)
{

//Get Current date
CTime TodayDate=CTime::GetCurrentTime();

int nYear,nMonth,nDay;
CString sMonth;
//date format MM-DD-YYYY

//Extract Month
sMonth=(szEndDate.Left(szEndDate.Find('-')));

//remove the month from String
szEndDate.Replace(szEndDate.Left(szEndDate.Find('-')),""); //-05-2005
//Replace Extra '-'
szEndDate.TrimLeft('-');

//code to get int month from string smonth
if(sMonth == "Jan" )
{
nMonth=1;
}
else if(sMonth == "Feb" )
{
nMonth=2;
}
else if(sMonth == "Mar" )
{
nMonth=3;
}
else if(sMonth == "Apr" )
{
nMonth=4;
}
else if(sMonth == "May" )
{
nMonth=5;
}
else if(sMonth == "Jun" )
{
nMonth=6;
}
else if(sMonth == "Jul" )
{
nMonth=7;
}
else if(sMonth == "Aug" )
{
nMonth=8;
}
else if(sMonth == "Sep" )
{
nMonth=9;
}
else if(sMonth == "Oct" )
{
nMonth=10;
}
else if(sMonth == "Nov" )
{
nMonth=11;
}
else if(sMonth== "Dec")
{
nMonth=12;
}

//Extract Day
nDay=_ttoi(szEndDate.Left(szEndDate.Find('-')));

//remove the day from String//05-2005
szEndDate.Replace(szEndDate.Left(szEndDate.Find('-')),""); but here -20 is left
//Replace Extra '-'
szEndDate.TrimLeft('-');

//Extract year
nYear=_ttoi(szEndDate);

//Expiry date
CTime ExpiryDate(nYear,nMonth,nDay,0,0,0);
//comparison Routine
//first Check year
//comparing todays date with expirey date
if(TodayDate>ExpiryDate)
return FALSE;

#ifdef MYDEBUG
AfxOutputDebugString("Returning True");
#endif

return TRUE;
}

Ankit Aneja

Michael Dunn2-Sep-05 23:14

Michael Dunn

2-Sep-05 23:14

You don't have to parse the string manually, use AfxExtractSubString().

--Mike--
Visual C++ MVP Cool | :cool:

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You cannot truly appreciate Dilbert unless you've read it in the original Klingon.

Ankit Aneja2-Sep-05 23:34

2-Sep-05 23:34

thanks done
but i do not understand why was it giving error that way

Ankit Aneja
"Nothing is impossible. The word itself says - I M possible"

ThatsAlok3-Sep-05 0:12

ThatsAlok

3-Sep-05 0:12

Ankit Aneja wrote:
i do not understand why was it giving error that way

Because there are two 05 in the string Smile | :)

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Ankit Aneja3-Sep-05 0:46

3-Sep-05 0:46

thanks ,very clever
but this was not my code

Ankit Aneja
"Nothing is impossible. The word itself says - I M possible"

ThatsAlok3-Sep-05 1:50

ThatsAlok

3-Sep-05 1:50

Ankit Aneja wrote:
this was not my code

then whose code is this

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Ankit Aneja3-Sep-05 2:24

3-Sep-05 2:24

it is not good to tell person name publiculy because that
person is having good reputation on code project

Ankit Aneja
"Nothing is impossible. The word itself says - I M possible"