C / C++ / MFC

dll project does not produce library (.lib)

25-Nov-04 6:55

CRichEditCtrl::GetSel() EM_EXGETSEL
CRichEditCtrl::SetSel() EM_EXSETSEL

To select all the text before the current caret positon:

GetSel(nStartChar, nEndChar);
SetSel(0, nEndChar);

Should do it!

INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen

AssemblySoft25-Nov-04 6:24

AssemblySoft

25-Nov-04 6:24

Hi i've come across this before and had to re-create the project to get it to work.

I've created a new win32 dll project with VC++6. (No MFC)
It's a simple utils dll with just functions, no DLLMain, Attach etc..

Upon build of the app, no .lib file is being created.

I am exporting a function.
(__declspec(dllexport) int logEvent(char* logFile,char* event,bool bLog);)

Can someone tell me why it isn't producing the .lib file.?
Can i use 'lib' to force this creation?

thanks in advance

Carl

below is the linker options from VS:

kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib<br> odbccp32.lib /nologo /dll /incremental:yes /pdb:"Debug/assemblyUtils.pdb" /debug /machine:I386 /out:"Debug/assemblyUtils.dll" /implib:"Debug/assemblyUtils.lib" /pdbtype:sept

Re: dll project does not produce library (.lib)

AssemblySoft25-Nov-04 6:35

AssemblySoft

25-Nov-04 6:35

Answer:

Well it seems i didn't add the header file in the cpp to the exported declaration of the function. Even though it compiled, nothing was being exported.

added the header and bobs your aunty betty!

thanks to myself Wink | ;)

Carl

Re: dll project does not produce library (.lib)

John R. Shaw25-Nov-04 7:04

Somebody has been in my situation?

25-Nov-04 7:04

Well what do you know a self answering post.
Cool | :cool:

Very cool! We learn from those too!

INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen

Icons in a treelist

Anonymous25-Nov-04 6:19

Anonymous

25-Nov-04 6:19

I have a treelist which I want to add some icons to. I am confused by this but I have seen some code which uses a width of 19 and height of 13 for its icons. The icons I want to use are 16x16 and are multi-color. The icon is a file which contains a 256 color image and a 16.8M color image. There are also 24x24, 32x32 and 48x48 sizes.

What do I set the treelist icon size to for the best? Is the standard font what determines what height I should use? I suppose the width depends on the icons I want to use but if I can use a height of 16 I might as well then use a width of 16.

Are there any articles which explain this clearly?

Re: Icons in a treelist

Joel Lucsy25-Nov-04 7:26

Joel Lucsy

25-Nov-04 7:26

I have not seen any articles explaining this. I have been able to use any size icon, and 32bit color. Probably 256px wide is a reasonable limit. The limits are built into the imagelist you use, not the tree control itself.

--
Joel Lucsy

doctorpi25-Nov-04 4:16

doctorpi

25-Nov-04 4:16

Hi guys
I'm using CFiledialog with multiple selection and ,I don't know the reason but when I read the files selected with :
POSITION pos=dlgFile.GetStartPosition()
while (pos!=NULL){
m_strFile=dlgFile.GetNextPathName( pos);
// here I do whatever with the file
}

The first and the last files are exchanged.
The first value of m_strFile is the last selected file and the last one is the first selected.
Somebody knows why this can happen to me?
Thanks in advance
Doc

Re: Somebody has been in my situation?

Maximilien25-Nov-04 5:43

Maximilien

25-Nov-04 5:43

I know, it's one of those "features" ... Hmmm | :|

Maximilien Lincourt
Your Head A Splode - Strong Bad

C++ Question

dmxdmxdmx0525-Nov-04 4:05

25-Nov-04 4:05

How do you find the Middle node of a string , without calculating the length of the string?
How would you test it ?
What if the length was “n” ?
How many pointer variables are used?
Is this done recursively ?

Thanks

toxcct25-Nov-04 5:37

toxcct

25-Nov-04 5:37

for the example, i use a CString :

<font color=#0000FF>char</font> ExtractMiddleNode(<font color=#0000FF>const</font> CString& str) {
    <font color=#0000FF>return</font> str[(<font color=#0000FF>int</font>)(str.GetLength() / 2)];
}

i explain.
GetLength() gives the length of str.
GetLength()/2 so gives the middle of the string.
if the string contain 2n characters (where n is an integer), so, GetLength()/2 gives an integer, that is the position of the middle character.
if the string contains 2n+1 characters (with n still an integer), GetLength()/2 gives an integer+0.5. that's why a truncated the result with the (int) cast.

understand ? Smile | :)

TOXCCT >>> GEII power
[VisualCalc]

John R. Shaw25-Nov-04 6:37

25-Nov-04 6:37

When did they start calling a character a node?

GetLenghth() returns and interger and is divided by an interger. The result is an interger. Therefor, there is no need for the int cast.

int i = 11/2;
Result: i = 5;
double d = 11/2;
Result: d = 5.0

INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen

toxcct25-Nov-04 6:41

toxcct

25-Nov-04 6:41

John R. Shaw wrote:
When did they start calling a character a node?

don't know, i just used what dmxdmxdmx... said.

TOXCCT >>> GEII power
[VisualCalc]

dmxdmxdmx0525-Nov-04 7:28

25-Nov-04 7:28

I'm not allowed to do a GetLength ...!!!

Anyways, Can I use a binary search Tree?

John R. Shaw25-Nov-04 5:43

25-Nov-04 5:43

dmxdmxdmx05 wrote:
Middle node of a string

What does this mean?

Is it a C string "c-string"?
Is it a standard C++ string?
Is it a CString?

There are to many ways to manipulate strings inorder to answer this question with more information.

INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen

dmxdmxdmx0525-Nov-04 7:29

25-Nov-04 7:29

C string I guess.
like a char*

John R. Shaw25-Nov-04 7:44

25-Nov-04 7:44

Well if toxcct is correct and you want the middle character, then you will have to use strlen(), which counts the characters.

char* s = "any string of characters";
int len = strlen(s);
char mc = s[len/2];

This assumes single-byte character coding (like ASCII). Multi-byte character is a whole nother story.

Note: Both std::string and CString both store the length, so getting the length is faster then character counting.

INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen

dmxdmxdmx0525-Nov-04 9:18

25-Nov-04 9:18

I'm not allowed to get the length of the string.

I think this can be done using a Binary Search Tree. and using a recursive function.

Anyhow it was an interview question, in reality all your answers are acceptable otherwise.

John R. Shaw25-Nov-04 9:39