|
I want to convert a number like (i=3546246547) to a string variable( str='3546246547') and vice versa. How can we do this?
Mehdi Hosseinpour
|
|
|
|
|
try the atoi and _itoa or use CString:
CString str;
int i = 3546246547;
str.Format("%d",i);
|
|
|
|
|
CString is MFC specific.
If you're not creating an MFC application and don't want to bloat your code use the following CRT data conversion routines.
strtoul, wcstoul - Converts string to unsigned long integer.
_ultoa, _ultow - Converts unsigned long to string.
For more data conversion functions search MSDN for "Data Conversion Routines"
|
|
|
|
|
there is also another way to convert values into strings with the sprintf() fonction :
<font style="color:blue;">#include</font> <string.h>
<font style="color:blue;">int</font> sprintf(<font style="color:blue;">char</font>* buffer, <font style="color:blue;">const char</font>* format, ...);
<font style="color:green;">
you can use it like printf(), giving it a pointer to where the string will be stored
TOXCCT alias Nicolas C.
|
|
|
|
|
I have some wave files that should be play every time. I want to copy them at a folder like 'INCLUDE\' and also i want open some wave files from another place. When i open this wave file program search link 'INCLUDE\' in new folder not inside project?
How can we have inside files and olso open some other files from other folders?
Mehdi Hosseinpour
|
|
|
|
|
I don't know if I unserstand you correctly...
But if you want to open files that are not in the working directory of your application, you just have to specify complete path ("c:\\My Documents\\Test.wav"). Don't forget to put the character '\' twice because otherwise it is interpreted as a special character.
If you want to access a folder related to your working folder, you can use the "..\\Test.wav" like in dos  (this opens a file that is in the root folder of your working directory).
Hope this helps
|
|
|
|
|
cedric moonen wrote:
...you can use the "..\\Test.wav" like in dos (this opens a file that is in the root folder of your working directory).
The ".." denote the parent folder of the current, or working directory. The root folder is simply expressed as "\\".
A rich person is not the one who has the most, but the one that needs the least.
|
|
|
|
|
Hum sorry, my english is not as good as I want  !
Yes, of course that's what I wanted to say but I expressed it as root folder of working folder... 
|
|
|
|
|
I have created a dialog with 4 sets of radio buttons groups.
for the first 2, its working fine.
but for the rest of the radio buttons group, only one is selecting. When the save and close, its saved. But while displaying, its displaying as only one radio button checked out of all.
Where the problem would be?
|
|
|
|
|
Hai
Your question is not cleared. I think the problem is where the groups u have created. Please confirm that the group check box for the First radio button of every group should be marked.
Regards
Anish
|
|
|
|
|
The radio button grouping uses the tab order for determining the group to which the radio button belongs.
In english, this means that in your dialog resource, the tab order of the radio buttons must run from RADIO_1_GROUP_1 -> RADIO_2_GROUP_1 -> RADIO_1_GROUP_2 -> RADIO_2_GROUP_2 -> etc. in a consecutive order. So, if the first radio button has tab order 3, the next must have 4, the next 5 and so forth.
Now, only the first button of each group should have the group flag set. This flag determines the starting point of the group. Whenever a control with a group flag set is found in the tab order, a new group begins. All radio buttons before this 'flagged radio button' belong to the group specified by the previous 'flagged button'. If no previous group is found before the start of the tabbing order, then those controls remain ungrouped.
Here[^] is a link to MSDN for more information.
-Antti Keskinen
----------------------------------------------
The definition of impossible is strictly dependant
on what we think is possible.
|
|
|
|
|
Thanks. My Problem is solved
|
|
|
|
|
I'm trying to retrieve a few lines of text from a file and then concatonate them into a TCHAR variable.
The entire lines of text amount to around 170 characters in length and the TCHAR receiving each file line is is set to _TCHAR fileLine[4000].
The memory allocation for the overall concatonated string is:
completeString = (_TCHAR*)malloc(4000);
I'm simply using the instruction:
_tcscat(*completeString, fileLine);
to concatonate.
The problem is that the line concatonations stop after around 150 characters for no real reason that I can see (and halfway through a fileLine), even thought the _TCHAR fileLine variable continues to hold the whole of the next string in sequence correctly.
Any ideas?
Thanks for any time,
Tom.
|
|
|
|
|
First off, why are you using malloc as apposed to new? Is this C? (as apposed to C++).
Second - is the text file you are reading ASCII? Or Unicode? _TCHAR = char for ASCII builds or w_char for Unicode ones - it doesn't really help you here as the text file is always going to be one type or the other regardless of your build.
The thing to keep in mind is _tcscat will stop if it finds a \0 somewhere in the string - try executing a _tcslen on the 'fileLine' that is stoping at 150 chars or so, what does that return? If that returns the shorter length, it's possiable the string being read in has embedded \0's that _tcscat is stoping when it finds it.
|
|
|
|
|
It's C++, but I'm a novice. Bare with me.
The file is ASCII.
I've been messing around with this and the concat works fine for normal char functions and produces the expected output. I tried to convert this output to _TCHAR (this string is later going to be passed into a DB package (PL/SQL)) and again, it cut off the conversion where the original code stopped concatonating?
Any thoughts?
Cheers,
Tom.
|
|
|
|
|
No worries,
If the file is ASCII then _TCHAR is of no use to you.
TCHAR is a special define that maps to plain old char when _UNICODE is not defined, and to wide char (IE a unicode char, w_char) when _UNICODE is defined. Are you defining _UNICODE for your project? Could you put up the code you are using to read the file line please.
Try replacing _TCHAR with char and _tcscat with strcat and let me know if it still complies. If not, you have some unicode issues going on - if you want to convert the char string to unicode you need to use something like MultiByteToWideChar etc.
Also, why are you derefrencing completeString ? _tcscat takes arguments of TCHAR*, if completeString is of type TCHAR* you end up with TCHAR when you derefrence it, im supprised that even compiles..
Try something like this:
char aSmallLine[400] = {0};
char* apCompleteString = new char[4000];
memset(apCompleteString, 0, 4000);
while(<read a line from the file and put it in aSmallLine>)
{
strcat(apCompleteString, aSmallLine);
}
// do something with apCompleteString
delete [] apCompleteString;
|
|
|
|
|
does anyone know how i could display the prompt of my menu items into my MFC dialog status bar ?
the string table is already created, but i can't find the way of catching such a text when the miouse is over an item...
thx all
TOXCCT alias Nicolas C.
|
|
|
|
|
Hi all,
I'd created a DLL with Automation option checked. After building the project, from Tools->Register control i registered the dll and it showed the message, dll successfully registered. But when i check thr registry, i can't find the dll.Where am i going wrong?
rgrds
kevcs2
|
|
|
|
|
I would like to save what I draw in my CDC into the bitmap.
But I cannot find the way how to do it.
It would be enough to store it into CBitmap
(the way how to save CBitmap into .bmp file I already know
Something like how to implement function:
bool SaveDC(CDC device, LPCTSTR lpszFile)
Thank you
viliam
|
|
|
|
|
The fastest and most quickest option is pixel-wise copying:
1. Create a fresh, unselected bitmap object (CBitmap).
2. Get the dimensions of the DC.
3. Create the underlying Windows bitmap by using CreateBitmap member function. Remember to use DC's dimensions.
3. Achieve a pointer to the bitmap's data (See MSDN -> CBitmap)
4. Run through a for-loop, copying the color of each pixel from the DC into the bitmap's data matrix.
This is the easiest way, although if your color settings are strange, it may result WEIRD bitmaps. An alternative might be that you create a compatible DC, then select a blank bitmap into it, copy from source to destination, and then save the bitmap. This allows some control over color changes.
Alternatively, use some ready-made classes, such as CxImage, available from CodeProject.
-Antti Keskinen
----------------------------------------------
The definition of impossible is strictly dependant
on what we think is possible.
|
|
|
|
|
- Create a new device context compatible with the original DC using
CreateCompatibleDC. We'll call this the memory device context.
- Use
CreateCompatibleBitmap to create a bitmap of the appropriate size. It needs to be compatible with the original DC, not the memory device context created in step 1.
- Select the bitmap into the memory device context using
SelectObject.
- Use
BitBlt to copy the appropriate area of the original DC into the memory DC.
You can now save your bitmap.
|
|
|
|
|
ok i know this is the wrong forum
but is there anyone who have used licensed winforms controls in a managed c++ app???
apparently vc++ does not embed .net licenses into the host app by default
so is there anyone that knows how to get a .net license to be compiled into the host app?
ive tried to make generate a binary license with the lc.exe tool but how do i get the resulting binarylicense into the compiled app??
(and i havent bought a licensed control , im just trying to get my own to be compiled into managed c++ apps)
//Roger
|
|
|
|
|
Hi All,
I want to know the width of a font,Before I Create a font. My aim is to provide
a character ratio for the font.
Iam creating the font using the "CreateFont" method.In this Function,the 2nd parameter
is width.So to Create a Font with a particular character ratio,I need to give in this 2nd
parameter a value which is equal to (widthoffont * characterratio).
sO THATS why I want to know the width of the font before creating a font before.Is it
possible?.
I tried as follows:
CFont font:
LOGFONT lf;
memset(&lf, 0, sizeof(LOGFONT));
font.CreateFont(-height,0,rotVal.x ,rotVal.y,style,FALSE,FALSE,0,ANSI_CHARSET,
OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,DEFAULT_QUALITY,DEFAULT_PITCH|FF_SWISS,
reinterpret_cast<const unsigned="" short*="">(facename.c_str()));
// In "CreateFont" method Iam giving width as 0 in the 2nd parameter as I dont know the width in advance & I tried to get the width windows allocated using the logFont Structure. But Iam not getting the width windows allocated instead Iam getting '0' which I gave in the "CreateFont" method.How is it possible to get the width windows allocated.
Would be nice if someone tells me how to achieve this....
font.GetLogFont(&lf);
long width = lf.lfWidth;
font.CreateFontIndirect(&lf);
Thanks in advance.........
|
|
|
|
|
First create a dummy font with the facename, and height you want. Use CreatePointFont for this purpose. Then use the GetFontLog to get the LOGFONT structure from the point font.
Now you can delete the dummy font object using DeleteObject. Adjust the width by multiplying the LOGFONT::lfWidth parameter, then use CreateFontIndirect with the LOGFONT structure to create a font with equal height, typeface and other properties, but a modified width.
If this isn't what you meant, then please give more details on what you want. Just by saying 'Character Ratio', you don't make any sense. What do you mean by that ? Explain, draw, create a sketch, describe. Anything to help us understand what is it that you actually want. Firstly, answer the question "What is character ratio ?"
-Antti Keskinen
----------------------------------------------
The definition of impossible is strictly dependant
on what we think is possible.
|
|
|
|
|
The thing I would like to do is
For Eg:-If I have a Text with a particular font Drawn into the DeviceContext.What I would like to do now is pull this text from both sides,so that it looks stretched.I give a value to the extent I want it to be stretched.this value I call the "Character Ratio".ie:If I give the characterratio value 1,the text will the stretched a bit.The stretching increases with higher values of Characterratio.
I can achieve this by increasing the windowsfontwith by a givenratio.
Hope u understand what I mean.Could u show me want u have told with a sample code...
Thanks..
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
