C / C++ / MFC

Re: Date Picker Control - Need to switch from British to American Format.

15-Apr-09 4:09

This seems so simple but I'm lost, because the web talks about SetFormat() but the class method just does not seem to exists in my C++ 6.0 version.

tried this
case WM_TIMER:
if((HWND)lParam==GetDlgItem(hwndDlg,IDC_DATETIMEPICKER4))::Set????((HDC)wParam,_T("dd-MMM-yy"));

tried this: (assertion error occurs)
// Gain a pointer to the control
CDateTimeCtrl* pCtrl = (CDateTimeCtrl*) GetDlgItem(hwndDlg,IDC_DATETIMEPICKER4);
ASSERT(pCtrl != NULL);
pCtrl->SetFormat(_T("dd-MMM-yy"));

Any ideas?

led mike15-Apr-09 4:18

led mike

15-Apr-09 4:18

Don Jones BNYMellon wrote:
tried this: (assertion error occurs)

What assertion error, this one?

Don Jones BNYMellon wrote:
ASSERT(pCtrl != NULL);

If so that means the control( IDC_DATETIMEPICKER4) has not been created.

Aside: It is more practical when forming comparison expressions of variables to constants, to place the constant on the left side of the comparison statement NULL != pCtrl. This way the compiler will error if you typo the statement into NULL = pCtrl whereas it won't if you typo pCtrl = NULL

Re: Date Picker Control - Need to switch from British to American Format.

Don Jones BNYMellon15-Apr-09 4:59

Re: Date Picker Control - Need to switch from British to American Format.

15-Apr-09 4:59

Thanks for reply

Got the date --- debug shows someting is not happy Needs the Window Handle?

// Gain a pointer to the control
char datetext[25];
EnableWindow(GetDlgItem(hwndDlg,IDC_DATETIMEPICKER4),true);
GetDlgItemText(hwndDlg,IDC_DATETIMEPICKER4,datetext,25);

CDateTimeCtrl* pCtrl = (CDateTimeCtrl*) GetDlgItem(hwndDlg,IDC_DATETIMEPICKER4);
ASSERT(pCtrl != NULL);

debug
+ datetext 0x0011f16c "4/15/2009"
+ hwndDlg 0x00050736
+ pCtrl 0x00000000 {CDateTimeCtrl hWnd=???}

David Crow15-Apr-09 5:57

Re: Date Picker Control - Need to switch from British to American Format.

15-Apr-09 5:57

Don Jones BNYMellon wrote:
...the web talks about SetFormat() but the class method just does not seem to exists in my C++ 6.0 version.

Have you looked in afxdtcl.h (line 50)?

Rather than force a particular format, why not use whatever Windows has been configured for?

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Don Jones BNYMellon15-Apr-09 7:36

Re: Date Picker Control - Need to switch from British to American Format.

15-Apr-09 7:36

Nice call but got another solution, so I don't have to change afxdtc.h

Here's what works.

if(cpi->eurodate!=1){
SendDlgItemMessage(hwndDlg,IDC_DATETIMEPICKER4,DTM_SETFORMAT,0,LPARAM("MM'/'dd'/'yyyy"));}
if(cpi->eurodate==1){
SendDlgItemMessage(hwndDlg,IDC_DATETIMEPICKER4,DTM_SETFORMAT,0,LPARAM("dd'/'MM'/'yyyy"));}

Thanks for all your help....

David Crow15-Apr-09 7:39

Re: Date Picker Control - Need to switch from British to American Format.

15-Apr-09 7:39

Don Jones BNYMellon wrote:
...so I don't have to change afxdtc.h

Nothing was ever mentioned about changing it, only to verify that the method exists.

Don Jones BNYMellon wrote:
if(cpi->eurodate==1){

Why do this check if the other check evaluated to true (i.e, cpi->eurodate can't be both 1 and not 1).

Don Jones BNYMellon15-Apr-09 8:00

Re: Date Picker Control - Need to switch from British to American Format.

15-Apr-09 8:00

Sorry, you are correct and it is there... interesting... eventhou I included this header...

// Attributes
COLORREF GetMonthCalColor(int iColor) const;
COLORREF SetMonthCalColor(int iColor, COLORREF ref);
BOOL SetFormat(LPCTSTR pstrFormat);
CMonthCalCtrl* GetMonthCalCtrl() const;
CFont* GetMonthCalFont() const;
void SetMonthCalFont(HFONT hFont, BOOL bRedraw = TRUE);

Don Jones BNYMellon15-Apr-09 8:17

Re: Date Picker Control - Need to switch from British to American Format.

15-Apr-09 8:17

To answer your seconrd question:
This is a 3rd party app which has a switch for EURO Date Format or NOT. I support a DLL that interfaces with another system. Yes, like you I would have used Windows configuration.

thanks again...

David Crow15-Apr-09 9:15

how to get the linux kernel version in cpp program

15-Apr-09 9:15

Don Jones BNYMellon wrote:
This is a 3rd party app which has a switch for EURO Date Format or NOT.

I understand that, but there's still no reason to perform both if() tests when only one of them can evaluate to true. I would imagine that the compiler would realize that and perform the necessary optimization, but still.

scamguru15-Apr-09 3:09

scamguru

15-Apr-09 3:09

I have a problem like i need to include a different header files depending on the linux kernel in a .cpp file. I have to check the linux kernel version and include the headerfile depending on that kernel. How can I do that?

I have ARCH variable in Makefile, can i make use of that?

OMG | :OMG:

Re: how to get the linux kernel version in cpp program

ParagPatel15-Apr-09 3:31

ParagPatel

15-Apr-09 3:31

Best way it to first include keranal version.h file in your project (ex:"/usr/include/linux/version.h"), and then put below checks in your code.

#if RHEL_MAJOR == 5

#include "xyx_5.h"

#else

#include "xyx.h"

#endif

Parag Patel
Sr. Software Eng, Varaha Systems

Re: how to get the linux kernel version in cpp program

scamguru15-Apr-09 4:12

scamguru

15-Apr-09 4:12

lOOKS LIKE this doesn't work for me. I saw the version.h file, it has got 3 lines as below.

#define UTS_RELEASE "2.4.20"
#define LINUX_VERSION_CODE 132116
#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))

And I want to differentiate kernels for 2.4 and 2.6. Is the above code still works with it.I've placed my code as below, but it seems not working.

#include "/usr/include/linux/version.h"

#if RHEL_MAJOR=2.4.20
#include "../../build/i686-Linux-2.4.32/ReleaseVersion.hh"
#else
#include "../../build/i686-Linux-2.6.21/ReleaseVersion.hh"
#endif

What went wrong in my case.

Thanks in advance WTF | :WTF:

Re: how to get the linux kernel version in cpp program

ParagPatel15-Apr-09 4:28

ParagPatel

15-Apr-09 4:28

Try below code,

#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,4,0)
//include for version 2.4 or lower
#else
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
//include for version 2.6 or higer
#endif // 2.4
#endif //2.6

Parag Patel
Sr. Software Eng, Varaha Systems

Re: how to get the linux kernel version in cpp program

scamguru15-Apr-09 4:40

scamguru

15-Apr-09 4:40

Thanks a lot man. It's working.

error LNK2001

venera_soft15-Apr-09 3:00

venera_soft

15-Apr-09 3:00

Hi All,
I have problem with my project linking. Frown | :(

It fails and the errors are
error LNK2001: unresolved external symbol __RTC_Shutdown
error LNK2001: unresolved external symbol __RTC_InitBase
error LNK2001: unresolved external symbol "__declspec(dllimport) public: __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >(char const *)" (__imp_??0?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@PBD@Z)
error LNK2001: unresolved external symbol ___security_cookie
and a lot such us.

Can anybody tell me what can be the reason?

Thanks

David Crow15-Apr-09 3:23

15-Apr-09 3:23

venera_soft wrote:
Can anybody tell me what can be the reason?

Not linking with the correct library, perhaps?

venera_soft17-Apr-09 3:31

venera_soft

17-Apr-09 3:31

The strange part of this is that i could build the sources before installing the oldest version of WinDDK. And i have never changed any lib files that are linked to my project.
Thanks anyway.

Stuart Dootson15-Apr-09 3:39

Stuart Dootson

15-Apr-09 3:39

Looks like you're linking against the wrong C/C++ run-time libraries. Check that the correct Visual Studio directories are in the VC++ library path (Tools->Options->Projects and Solutions->VC++ Directories and select 'Library files' for the 'Show directories for:' combobox).

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p