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Hi all,
I have a problem with DateTimepicker Control in VC6.
If I choose the DTS_SHOWNONE style how can i get a notification if the user disable the DateTimeCtrl by unchecking the small checkbox that appears inside the control.
Please help me!
Thanks a lot.
snow
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if we select the control style (DTS_SHOWNONE)
It is possible to have no date currently selected in the control. With this style, the control displays a check box that users can check once they have entered or selected a date. Until this check box is checked, the application will not be able to retrieve the date from the control because, in essence, the control has no date. This state can be set with the DTM_SETSYSTEMTIME message or queried with the DTM_GETSYSTEMTIME message.
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Im not sure its helpful for you but see here[^]
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I have developed a simple dialog based GUI and was attempting to link some C-code to it in the CDialog class i.e. copying the C code into the file and updating the header files. However, when I started to compile it, the following errors were encountered. I have not done anything with the MFC header files and know that it cannot be due to the program. It might be the way I inserted the c code into the GUI application. Please advise. Thanks.
c:\program files\microsoft visual studio\vc98\include\crtdbg.h(536) : error C2833: 'operator DEBUG_NEW' is not a recognized operator or type
c:\program files\microsoft visual studio\vc98\include\crtdbg.h(536) : error C2059: syntax error : 'newline'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(674) : error C2833: 'operator DEBUG_NEW' is not a recognized operator or type
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(674) : error C2059: syntax error : 'newline'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(674) : error C2238: unexpected token(s) preceding ';'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(675) : error C2833: 'operator DEBUG_NEW' is not a recognized operator or type
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(675) : error C2059: syntax error : 'newline'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(675) : error C2238: unexpected token(s) preceding ';'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(683) : error C2833: 'operator DEBUG_NEW' is not a recognized operator or type
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(683) : error C2059: syntax error : 'newline'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(683) : error C2238: unexpected token(s) preceding ';'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(1631) : error C2833: 'operator DEBUG_NEW' is not a recognized operator or type
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(1631) : error C2059: syntax error : 'newline'
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(122) : error C2059: syntax error : 'string'
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(123) : error C2091: function returns function
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(123) : error C2802: static member 'operator new' has no formal parameters
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(123) : error C2333: 'new' : error in function declaration; skipping function body
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(131) : error C2059: syntax error : 'string'
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(131) : error C2091: function returns function
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(131) : error C2802: static member 'operator new' has no formal parameters
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(135) : error C2059: syntax error : 'string'
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(135) : error C2091: function returns function
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(135) : error C2556: 'void *(__cdecl *__stdcall CNoTrackObject::operator new(void))(unsigned int,const char *,int)' : overloaded function differs only by return type from 'void *(__c
decl *__stdcall CNoTrackObject::operator new(void))(unsigned int)'
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(131) : see declaration of 'new'
d:\code\jm\ldecod\inc\defines.h(22) : warning C4005: 'TRACE' : macro redefinition
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(218) : see previous definition of 'TRACE'
AVCDlg.cpp
c:\program files\microsoft visual studio\vc98\include\crtdbg.h(536) : error C2833: 'operator DEBUG_NEW' is not a recognized operator or type
c:\program files\microsoft visual studio\vc98\include\crtdbg.h(536) : error C2059: syntax error : 'newline'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(674) : error C2833: 'operator DEBUG_NEW' is not a recognized operator or type
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(674) : error C2059: syntax error : 'newline'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(674) : error C2238: unexpected token(s) preceding ';'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(675) : error C2833: 'operator DEBUG_NEW' is not a recognized operator or type
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(675) : error C2059: syntax error : 'newline'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(675) : error C2238: unexpected token(s) preceding ';'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(683) : error C2833: 'operator DEBUG_NEW' is not a recognized operator or type
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(683) : error C2059: syntax error : 'newline'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(683) : error C2238: unexpected token(s) preceding ';'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(1631) : error C2833: 'operator DEBUG_NEW' is not a recognized operator or type
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(1631) : error C2059: syntax error : 'newline'
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(122) : error C2059: syntax error : 'string'
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(123) : error C2091: function returns function
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(123) : error C2802: static member 'operator new' has no formal parameters
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(123) : error C2333: 'new' : error in function declaration; skipping function body
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(131) : error C2059: syntax error : 'string'
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(131) : error C2091: function returns function
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(131) : error C2802: static member 'operator new' has no formal parameters
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(135) : error C2059: syntax error : 'string'
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(135) : error C2091: function returns function
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(135) : error C2556: 'void *(__cdecl *__stdcall CNoTrackObject::operator new(void))(unsigned int,const char *,int)' : overloaded function differs only by return type from 'void *(__c
decl *__stdcall CNoTrackObject::operator new(void))(unsigned int)'
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(131) : see declaration of 'new'
OO KM
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plz send ur code ...what is in .cpp file and .h file ...so we encounter ur mistake
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See here[^] maybe it is some helpful to you
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First I glad that your problem solve and I guess you are a student
(1)I think best help is MSDN(From the MSDN)
"If either /Yc or /Yu is specified with /YX, a warning is issued. In such cases, /YX is ignored, and /Yc or /Yu takes precedence".
For more information see
here[^]
(2)can you be more specific,I saw many errors with error LNK2001
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You are right. I am a student but an old one. This is the first time linking C code with C++ code. Normally, I used only C++ and it is simply using the defined classes.
I have this GUI that was developed and this C-code that performs image processing. I have copied the main() code to the GUI and declared the global variables in the dialog class.
The image processing files are brought into the workspace and the GUI made dependent on these files. No problem on compiling. However, during the linking up, there are some extern variables in the image processing files that need referencing to. They are declared in the Dialog cpp file. That is the reason for the "unresolved external symbol _img" and the strings of other error message.
I have included the Dialog.h in the source file of the image processing file and they could not recognize the class terms i.e. more error occurred.
2nd question is the declaration of C- code in a C++ program. Can I use this method? The two functions are C functions.
afx_msg void decode(void);
afx_msg void Configure(void);
Thanks a lot for your time and advise. Greatly appreciated.
searcher08
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Student,I was student and I know when a student has a problem he trys to find his problem(anyway I couldnt found my answer )But I have a question why you want to use c code is it possible for you to write your code on C++.
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I can't use C++ coz the c code was developed by another person and I have to add in the GUI and perform improvement on the code. To recode that will take too long.
I have already spent hours on this problem and I am not getting anywhere. I think the answer is out there except that it is not made known.
Thanks.
searcher08
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hi,
I have a CListView and I want to check what items are currently visible in the view.
when the view is in report view mode I can use GetCountPerPage() along with GetTopIndex() to determine visible items. but when the control in large icon view GetCountPerPage returns the number of all elements in the list control - not the number of visible ones.
so how to solve this??
Mohammad
And ever has it been that love knows not its own depth until the hour of separation
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CListCtrl::GetCountPerPage
Calculates the number of items that can fit vertically in the visible area of a list view control when in list view or report view.
int GetCountPerPage( ) const;
Return Value
The number of items that can fit vertically in the visible area of a list view control when in list view or report view.
may be it will help u
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Thanks for the reply,
but I want an approach that works for large icons view.. Any Idea?
Thanks
And ever has it been that love knows not its own depth until the hour of separation
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I want to achieve an effect of fading in and out. In other words, I want to make a full black picture gradually disappear and let the original picture reveal. Could anybody help me out of this? Thank you! And I really appreciate that you can email me a sample that contains the source code.
GoGoGo!
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I just ran a game I wrote a while back, and the sound is messed up. This is the first time I have used it since I installed Xp Home. DirectX diagnostics told me that Microsoft MIDI Mapper was not running. If I run WinAmp DirectX dig says Microsoft MIDI Mapper is running and my game sounds fine.
Help!!??
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When you run WinAmp then your program is working,right?
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Yes, WinAmp has to playing something. If I pause WinAmp it still works but if I stop WinAmp it quits. I've got MIDIMapper working and it is not the problem.
The only audio function my program uses is PlaySound, and it seeems to be taking a long time to execute. The sounds I use are very short most 0.4 sec some 0.05 sec. If I use the SND_SYNC flag the sounds are fine but my game runs really slow waiting on PlaySound. If I use SND_ASYNC like normal the game gets way ahead of PlaySound.
I've had this game for 2 years and never had any problems with it, friends who have copies of it report no problems. This is the first time I have tried it since I upgraded to XP sp2.
Thanks for any help you can give me.
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I asked this question because I had wrote a program many years ago It opened movie files but I had a problem if I run my program it opened almost more file except dat files but if i run Xing and run my program it could open dat files then I researched and I understood when I open xing it load some drivers and they are on memory and when I close xing it free memory.Now I guess for it maybe when you open WinAmp it load some drivers on memory and your program use from them.
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Hi,
I want to rename a file or a directory so I use MoveFile function, but the problem with this function is that when I place invalid characters in the filename like (/?*<>) and it fails, I use FormatMessage() to get the error message, and the result error message says 'there is not enough disk space to complete the operation' and this seems stupid..
I thought about CFile::Rename, but it cant rename directories-only files.. so are there any options available?? please provide me with all options you know.
Thanks
Mohammad
And ever has it been that love knows not its own depth until the hour of separation
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Can't you just write a SmartMoveFile function or something that scans for those characters first? You can get a nice list of invalid characters by putting a ':' in a filename in Explorer.
Or maybe I'm missing something? 
Mike
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Rename a file or directory.
Renames the file or directory specified by oldname to newname.
If oldname and newname specify different paths the file is moved.
Parameters.
oldname
Path and name of the file to be renamed or moved. This file must exist and we must have write access to it.
newname
New path and name for the file. This filename must not be the same of an existing one.
Return Value.
If the file is succesfully renamed/moved a 0 value is returned.
On error a non-zero value is returned and the errno variable is set to the corresponding error code that can be printed using perror.
Portability.
Defined in ANSI-C.
Some systems do not allow to move directories.
Example.
/* rename example */
#include <stdio.h>
int main ()
{
int result;
char oldname[] ="oldname.txt";
char newname[] ="newname.txt";
result= rename( oldname , newname );
if (result != 0 )
perror( "Error renaming file" );
return 0;
}
If the file oldname.txt existed before the execution and we meet the permission requirements to call this function the file will be renamed to newname.txt, otherwise a message similar to this will be written to stderr:
Error renaming file: Pemission denied
Errors
Rename will fail and neither of the argument files will be affected if: [ENAMETOOLONG] A component of a pathname exceeded {NAME_MAX} characters, or an entire path name exceeded {PATH_MAX} characters.
[ENOENT] A component of the from path does not exist, or a path prefix of to does not exist.
[EACCES] A component of either path prefix denies search permission.
[EACCES] The requested link requires writing in a directory with a mode that denies write permission.
[EPERM] The directory containing from is marked sticky, and neither the containing directory nor from are owned by the effective user ID.
[EPERM] The to file exists, the directory containing to is marked sticky, and neither the containing directory nor to are owned by the effective user ID.
[ELOOP] Too many symbolic links were encountered in translating either pathname.
[ENOTDIR] A component of either path prefix is not a directory.
[ENOTDIR] from is a directory, but to is not a directory.
[EISDIR] to is a directory, but from is not a directory.
[EXDEV] The link named by to and the file named by from are on different logical devices (file systems). Note that this error code will not be returned if the implementation permits cross-device links.
[ENOSPC] The directory in which the entry for the new name is being placed cannot be extended because there is no space left on the file system containing the directory.
[EDQUOT] The directory in which the entry for the new name is being placed cannot be extended because the user's quota of disk blocks on the file system containing the directory has been exhausted.
[EIO] An I/O error occurred while making or updating a directory entry.
[EROFS] The requested link requires writing in a directory on a read-only file system.
[EFAULT] Path points outside the process's allocated address space.
[EINVAL] From is a parent directory of to, or an attempt is made to rename '.' or '..'.
[ENOTEMPTY] To is a directory and is not empty.
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I have always believed that the best way to avoid an error is to try to catch it in the first place. to that end, I would suggest validating the paths passed to the MoveFile(...) before calling it.
The PathGetCharType(...) function is a great place to start when you need to validate the characters in a path.
Peace!
-=- James
If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
DeleteFXPFiles & CheckFavorites (Please rate this post!)
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Hey guys,
Im wondering if anybody could help me with a link or some ideas on how to acknowledge whether the user successfully traces a letter or symbol on the screen using the mouse in OpenGL.
Just to clarify, say my program put a large 'S' on the screen. The program would wait until the mouse first entered the 'S' and then monitor the cursor movements, making sure it went all the way around the letter and had a way of recording how many times it went out of the lines.
I can handle the little extras like counting the mistakes but the general idea of following a letter on the screen confuses me. Thanks for your time!
~Matt
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