|
Straight from MSDN.
"A good athlete is the result of a good and worthy opponent." - David Crow
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
|
|
|
|
|
Nilish wrote: n the above line , is it right to say that #include is a pre processor directive.
yes. every keyword that starts with a # is a preprocessor directive, and is told to work before the compiler actually starts its processing, thus the name pre-processor.
something totally different, you should prefer including <iostream> rather than <iostream>.h (notice the .h at the end of the file name). I'm not even sure the later one exists...
|
|
|
|
|
Oops - didn't see your reply. VS2005 is the first to not have iostream.h
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
|
|
|
|
|
It's also true to say that it's not standard C++. The iostream.h header is deprecated and should not be used.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
|
|
|
|
|
In the MSDN documentation of CreateFont, it says that the font height is calculated by,
nHeight = -MulDiv(PointSize, GetDeviceCaps(hDC, LOGPIXELSY), 72);
Here, what is meant by the value 72 ?
- NS -
|
|
|
|
|
There are 72 points per inch.
|
|
|
|
|
But my doubt is that in the windows settings the default DPI is 96. This value got from the display properties (WinXP). So I am really confused from where this 72 came... 
- NS -
|
|
|
|
|
NS17 wrote: But my doubt is that in the windows settings the default DPI is 96
Which is why MulDiv is used to convert "dots" to points (using 72 which is the number of points in
an inch). 
"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder
|
|
|
|
|
|
Since on 72-dpi system you'll get (ignoring sign) nHeight=PointSize, I guess 72 it's, say, their (MS) reference display dpi.
(Of course it's only an hypothesis...)
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
|
|
|
|
|
Hi all.
I want to add some custom menus in ‘Microsoft Front page’ application and also I want to handle click events on those custom menus.
Like…
I want to add custom menu and on click event of it, I want to open the currently selected image from Front page in MS-Paint.
This is something possible through ‘Add Ins’.
Can anybody please educate me more about creating ‘Add In’ Dlls, where to keep or how to register these Dlls with Front page?
A sample code for Add In Dlls would be most appreciated.
Thanks
Sameer Thakur
|
|
|
|
|
in my MFC applcn,i want to insert a combobox in a toolbar.hw to do this?
|
|
|
|
|
See Here[^] and here[^]
Somethings seem HARD to do, until we know how to do them.
 _AnShUmAn_
|
|
|
|
|
|
What's wrong with these code: a new field named "Field19" is created. i wanna set all the values in Field19 are "abc:
CDaoDatabase db;
CDaoTableDef tableDef(&db);
db.Open("C:\\ktt.mdb");
tableDef.Open("Table3");
CDaoRecordset recset( &db );
tableDef.CreateField("Field19",dbText,255,dbUpdatableField | dbVariableField);
if ( !recset.IsEOF() )
recset.MoveLast();
while( !recset.IsEOF() )
{
recset.SetFieldValue("Field19","abc");
recset.MovePrev();
}
|
|
|
|
|
Hi,
Well it depends on the recset.SetFieldValue("Field19","abc"); function.
Is everything operating corrcetly inside the function?Have you tried to use GetLastError()What is the debugger informing you?Regards,
The only programmers that are better than C programmers are those who code in 1's and 0's..... 
Programm3r
My Blog: ^_^
|
|
|
|
|
Hi.
In the MDI program that I've created, after I have "save as..", the title bar changed to the filename that I put in the save as dialog. How can I retain the old filename in the title bar?
|
|
|
|
|
The title bar is set with SetWindowText. It's set by the framework, you'd need to change it after this occurs, but the thing is, the filename is obviously being saved in a member variable, if you change the frame text without changing this value, clicking save won't do what you'd expect. So, I'd recommend stepping into the MFC code to work out the stuff that happens in a save as that you want to reverse.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
|
|
|
|
|
Hi Aint,
You can overwrite SetTitle() in your CDocument derived class. This Method will be called after Sav'ing and Save As'ing.
|
|
|
|
|
This is because after "saving as" you have your new file as active file/document in your app. One solution is already above, but you can make another thing (only if the old file was already saved, if new document won't be possible). You can override messages to save as.. a file, and just after the file is saved call OnCloseDoc () and OpenDocument () with the name of the old file. Then you will have the new copy of your file "saved as" but still continue working with the original file.
If the project is a new project... you can make a call to Serialize first to save the things in a default file, then call the save as and then the same as before.
But the fact is that 95% of the applications/programms work in that way. You always have active the file with the last save. I mean... if you open file1 and do some changes, then save as file2. You will have the file1 without changes in the HD, you will see the changes made in the file2 (and this one will be the active document automatically) and any posterior change will go automatically to file2, as long you don't open specifically the file1 another time.
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
|
|
|
|
|
This is because after "saving as" you have your new file as active file/document in your app. One solution is already above, but you can make another thing. You can override messages of "save as.." in a file, and just after the file is saved call OnCloseDoc () and OpenDocument () with the name of the old file. Then you will have the new copy of your file "saved as" but still continue working with the original file.
If the project is a new project... you can make a call to Serialize first to save the things in a default file, then call the save as and then the same as before.
But the fact is that 95% of the applications/programms work in that way. You always have active the file with the last save. I mean... if you open file1 and do some changes, then save as file2. You will have the file1 without changes in the HD, you will see the changes made in the file2 (and this one will be the active document automatically) and any posterior change will go automatically to file2, as long you don't open specifically the file1 another time.
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
|
|
|
|
|
I use the method supplied by http://www.codeproject.com/system/MultiCPUUsage.asp in my project. It works fine in all platform except vista.
Anybody knows?
|
|
|
|
|
Mmmm, I don't know... but it seems that Vista is having a lot of problems. There are some Laptop providers that have returned all equipments with Vista and continued with XP. Just be patient until MS patches Vista's failures.
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
|
|
|
|
|
I'm developing an application which can display some item with a thumbnail to show it is a file or folder. So I declare a variation as CImageList which include some image and a CListCtrl variation. Then attach them together. After those, I add item and image in CListCtrl and CImageList. But the image can't be display. I hope someone can help me. Thx!
The code is following.
clsImage=new CImageList();
clsImage->Create(32,32,ILC_COLOR8,0,2);
lsFile.SetImageList(clsImage,LVSIL_SMALL);
lsFile.SetRedraw(FALSE);
for(i=0;i<ItemCount;i++)
{
memcpy(&name_len,p,sizeof(int));
p+=4;
pName=new BYTE[name_len+2];
memcpy(pName,p,name_len);
pName[name_len]='\0';
pName[name_len+1]='\0';
p+=name_len;
kind=*p;
p++;
memcpy(time_str,p,16);
CBitmap *bmp=new CBitmap;
if(kind==1)
bmp->LoadBitmapW(IDB_FILE);
else
bmp->LoadBitmapW(IDB_FOLDER);
clsImage->Add(bmp,RGB(0,0,0));
lsFile.InsertItem(i,(LPCTSTR)pName,i);
delete bmp;
delete pName;
p+=16;
}
lsFile.SetRedraw(TRUE);
lsFile.Invalidate();
lsFile.UpdateWindow();
To be simplicated, I ommit some code to declare local variation.
whiteclouds
|
|
|
|
|
which view are you using in list control( Thumbnail,List, Report ... )?
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
