|
Hi,
I have MDI project. In one of the dialog boxes, I have a Combo Box,
and according to a file (this file is read before the dialog is opened),
I have to add items to the combo box, and the number of items is different according to the read file.
how can I add dynamically to the Combo Box?
Ehsan Behboudi
|
|
|
|
|
|
|
Combo boxes only work with strings. They are "dumb" as far as data types, formating, etc. are concerned. If you want data from the file to go to a combo box, then you are responsible for reading in the data from the file, parsing the data, and adding the data to the Combo Box.
|
|
|
|
|
I'm making a program to losslessly cut commercials from WMV files, and I'm trying to figure out the best way to display the current position in the video. I'm using a TrackBar control, and it works fine, but I'd like it to highlight the part of the slider to the left of the current position, like WMP9 or other video players do. How can I do that using straight Win32?
|
|
|
|
|
|
It would, but it uses MFC; I want to avoid a huge exe size, so I can't use MFC 
|
|
|
|
|
IGx89 wrote:
I want to avoid a huge exe size
Your app is huge even if you link dynamically with the MFC DLLs?
/ravi
Let's put "civil" back in "civilization"
Home | Articles | Freeware | Music
ravib@ravib.com
|
|
|
|
|
Well, it's about ~40kb now; with MFC (static) it'd probably be close to 200kb, and MFC (dynamic) would be a LOT bigger because I'd have to include the whole mfc70.dll file (or whatever it's called now). I don't think it's worth it when I'm using MFC just for one simple trackbar 
|
|
|
|
|
Ah. I didn't realize you meant the app's footprint vs. its size. But if you're using VC7 (as it appears), don't you have to include the new MSVCRTL (and possibly other) DLLs anyway? Just curious.
/ravi
Let's put "civil" back in "civilization"
Home | Articles | Freeware | Music
ravib@ravib.com
|
|
|
|
|
I have it staticly linked to those DLL's; including wmvlib and other DShow lib's, and using UPX compression, the final exe is exactly 60kb, and isn't dependent on any DLL's (besides standard DirectShow ones that come with DirectX).
|
|
|
|
|
hi again,
msdn tells, that select will return a recv event, when the connection is closed, terminated or reseted, not only when there is data to read.
is there an easy way to distinguish between a close and a read event?
thx for help
Don't try it, just do it! 
|
|
|
|
|
Yes, do a read on the socket and it will return 0 - the socket is closed.
|
|
|
|
|
hi,
i have a dll, exporting a c++ class(u know all these crazy export names), and i want to code a software, to link them runtime! So GetProcAddress will get problems!
any solution?
thx
Don't try it, just do it!
|
|
|
|
|
Alexander M. wrote:
and i want to code a software, to link them runtime! So GetProcAddress will get problems!
What do you mean? Are you having problems accesing the functions with GetProcAddress() now, or do you intend to write functions which cannot be accessible using GetProcAddress()? 
--
They're out get me, I can't escape cos' they won't let me
They won't forget me, they'll get me in their grip and sweat me
They'll wait me out, and then move in under my skin
They'll make me doubt, they're out to make me let them in
|
|
|
|
|
Hi,
How can I get the current username from a NT service?
GetUserName() and WNetGetUser() returns allways "SYSTEM"
tx
|
|
|
|
|
it's not that easy as u think!
it is possible, that multiple users are logged on at one machine!
Don't try it, just do it!
|
|
|
|
|
That's because you have configured your service to run under the LocalSystem account and that is in fact the correct username.
Presumably what you want is to find out the username of the whomever is logged onto the interactive console at the time? (Keeping in mind that the answer might be 'no one'.)
A sketch of the solution is as follows:
1) Call OpenWindowStation("WinSta0", FALSE, WINSTA_READATTRIBUTES) to a handle to the interactive WindowStation.
2) Call GetUserObjectInformation(hWinSta, UOI_USER_SID, ...) to get the SID of the user currently logged onto that WindowStation.
3) Call LookupAccountSid(...) to get the username from the SID returned above.
Points to consider:
If you are running on a version of the OS with Terminal Services installed you should start with the WTSEnumerateSessions() first to determine which WindowStation name you care about. This includes WinXP and W2K3 as they use the terminal services infrastructure all the time.
You may not really want the name, for anything security related you should probably be comparing against or logging that SID obtained in step three directly. Usernames can be duplicated between local and domain accounts and can change over the lifetime of an account, SIDs do not.
-Blake
|
|
|
|
|
Using VisualC++ 6.0 SP5 I create a new MFCAppwizard(exe) project named "my". I choose SDI with doc/view architecture support then click finish to leave all other options at their defaults. Since the project is named "my" the classes created are "CMyApp", "CMyDoc", "CMyView", "CMainFrame" and "CAboutDlg". If I build it now it will run fine so far. Then if I include the header for the CMyView class in the cpp for the CMainFrame class like so:
<br />
<br />
#include "stdafx.h"<br />
#include "my.h"<br />
<br />
#include "MainFrm.h"<br />
<br />
#include "myview.h"<br />
<br />
#ifdef _DEBUG<br />
#define new DEBUG_NEW<br />
#undef THIS_FILE<br />
static char THIS_FILE[] = __FILE__;<br />
#endif<br />
...<br />
...<br />
...<br />
it does not compile. The 3 errors it gives are really weird:
myprojects\my\myview.h(21) : error C2143: syntax error : missing ';' before '*'
myprojects\my\myview.h(21) : error C2501: 'CMyDoc' : missing storage-class or type specifiers
myprojects\my\myview.h(21) : error C2501: 'GetDocument' : missing storage-class or type specifiers
weird, eh? I noticed that if you move the #include "myview.h" line to the top of the file (i.e. before the other three #include statements) it will compile but if you make reference to anything that was declared in myview.h it will give an error saying "undeclared identifier".
For example if I wanted to create a pointer to a CMyView class within the constructor of the CMainFrame class like so:
<br />
CMainFrame::CMainFrame()<br />
{<br />
CMyView* p;<br />
}<br />
it gives the following error messages:
MyProjects\my\MainFrm.cpp(45) : error C2065: 'CMyView' : undeclared identifier
MyProjects\my\MainFrm.cpp(45) : error C2065: 'p' : undeclared identifier
MyProjects\my\MainFrm.cpp(45) : warning C4552: '*' : operator has no effect; expected operator with side-effect
(remember that is with the #include "myview.h" moved to the very top of the mainfrm.cpp file
anybody know why it doesn't like what I'm trying to do? I'm a bit new at this and I searched the forum for someone asking the same question but didn't find anything relevant.
thanks!
-Oinka
|
|
|
|
|
Oinka wrote:
myprojects\my\myview.h(21) : error C2143: syntax error : missing ';' before '*'
myprojects\my\myview.h(21) : error C2501: 'CMyDoc' : missing storage-class or type specifiers
myprojects\my\myview.h(21) : error C2501: 'GetDocument' : missing storage-class or type specifiers
There are two solutions to this problem.
1. Add #include "MyDoc.h" before the "MyView.h" include
2. Forward declare CMyDoc in the MyView.h header file.
Michael
'Logic, my dear Zoe, merely enables one to be wrong with authority.' - The Doctor: The Wheel in Space
|
|
|
|
|
I tried solution #1 and it works fine now, but I'm still confused about why that is necessary. Why do I have to include the doc class declaration in order to use the view class? Shouldn't the view class header just include everything it needs for itself?
thanks again
-Oinka
|
|
|
|
|
Oinka wrote:
Why do I have to include the doc class declaration in order to use the view class? Shouldn't the view class header just include everything it needs for itself?
The CView derived class has a GetDocument function. I assume there is some MFC design reason why the include file or forward declaration isn't generated by the AppWizard. (Or it could be an oversight by the MFC team not realising how developers were going to structure their code)
Michael
'Logic, my dear Zoe, merely enables one to be wrong with authority.' - The Doctor: The Wheel in Space
|
|
|
|
|
I would really like to find a teacher's version of this book, or an answer guide someplace! Thank you! Alison
------------------------------------
Here's the question: A List ADT is to be extended by the addition of the function SplitLists, which has the following specifications where ListType is either the class UnsortedType or the class SortedType:
SplitLists(ListType list, ItemType iten, ListType& list1, ListType& list2)
----------------------------
Function - Divides list into two lists according to the key of item.
Pre - list has been initialized and is not empty.
Post - list1 contains all the items of list whose keys are less than or equal to item's key. list2 contains all the items of list whose keys are greater than item's key.
----------------------------
a. Implement SplitLists as a member function of the Unsorted List ADT.
b. Implement SplitLists as a member function of the Sorted List ADT.
Also, write a driver program to test your implementation. The driver program should use an Itemtype which contains a single integer value and split the list of numbers (2, 5, 8, 9, 12, 15, 23, 45) on the number 14.
----------------------------
Some direction would really be appreciated. Thanks!
|
|
|
|
|
My best guess:
for part a) I'd say just go through list item by item (since it's unsorted you will have to go through it sequentially). As you go, compare each item in list to item and based on the results of the comparison copy it into either list1 or list2.
for part b) I guess you'd want to binary search list for item then split the list at that point.
|
|
|
|
|
I would really like to find a teacher's version of this book, or an answer guide someplace! Thank you! Alison
------------------------------------
Using one or more stacks, write a code segment to read in a string of characters and determine whether it forms a palindrome. A palindrome is a sequence of characters that reads the same both forward and backward--for example: ABLE WAS I ERE I SAW ELBA.
The character '.' ends the string. Write a message indicating whether the string is a palindrome. You may assume that the data are correct and that the maximum number of characters is 80.
-------------------------------
I'm not sure how to write just a code segment. Not being able to run it leave s me without any direction to go in (knowing if it's right or wrong). Any direction would be appreciated! Thanks!
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
