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A map will allow you to map the string names to the function pointers. This is STL and not a beginner subject. It's too early in the morning (05:33) for me to go into much depth now I'll see if I can expand later after I catch some more  ...
John
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Hi,
As I right understand you want create somthing
similar as command processor - take text input
and execute it commands.
Do do this simplest way is create association
between C++ functions(class members) and array( or map )
and function that should find 'assoc' in the array by
be text and call them.
Hope this help.
Vitali
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Do you ultimatly want to make your application scriptable?
There are a few articles on how to do that on CP and they also explain what to do to let the scripts call methods of your applications objects.
Who is 'General Failure'? And why is he reading my harddisk?!?
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jhwurmbach wrote:
Do you ultimatly want to make your application scriptable?
Yes !
jhwurmbach wrote:
There are a few articles on how to do that on CP and they also explain what to do to let the scripts call methods of your applications objects.
Could you point out such articles ? I tried to search CodePorject for them (with keywords like 'scriptable') but couldn't find any !
Thanks !
Jerome
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mmmmhh looks like my weekend will be very enjoyable ! 
Thanks !
Jerome
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Use pointer to function.
like this
{
void (*f[3])(int) = {function1, function2, function3};
int iParam;
(*f[2])(iParam); //calling function2
}
void function2(int c)
(
cout<<"hi"<
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Hi there,
I have an ATL control with some color properties (get/set) that can be changed by a property page. For the colors I use the MS Stock Color Property Page (CLSID_StockColorPage).
The problem with this property page is that the list, showing the colors that can be changed, does not have a horizontal scrollbar, so the final part of long property names is chopped off, and you can't see the difference anymore, if there are properties that only differ in the final part of the name.
Anyone else also seen this problem and solved it? Should I be using a different property page?
Any suggestions are welcome.
Marco Voorwinden
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Hello
I've got a client/server application that sends small packets 10-50 bytes.
The server, running win2000, uses IOCP and WSARecv + WSASend.
The client uses an ownmade socket class also using WSARecv/WSASend and overlapped IO.
Both the client/server waits for a Read, handles it and invoked WSARecv again. WSASend is only invoked when something is waiting in the outbuffer.
Serverside:
The first two transactions are handled ok (both transactions are sent at the same time and is recieved with the same WSARecv). But the second transaction, sent a couple of seconds later, will not be read by the server.
The IOCP function gets called by the WSARecv but 0 bytes read are reported.
ClientSide:
After the last send I do a WSAGetOverlappedResult and it reports that the bytes were sent.
I've tried to disable the nagle algorithm and setting SO_SNDBUF + SO_RCVBUF to 0 in the client. I've also tried to set SO_SNDBUF/SO_RCVBUF to zero in the server.
client log:
Socket(3)(Connect): WSAConnect() OK!
Socket(3)(Read): WSARecv
Socket(3)(Read): pending read...
Send Trans: 0
Send Trans: 2
Socket(3)(Send): New data triggered.
Socket(1)(Send): WSASend
Socket(3)(Send): Write completed
Socket(3)(Read): Read completed.
Socket(2)(Read): WSAGetOverlappedResult
Recieve, Trans: 0
Socket(2)(Read): 71/71 bytes handled
Socket(3)(Read): WSARecv
Socket(1)(Read): Completed directly 14 bytes
Recieve, Trans: 2
Socket(2)(Read): 14/14 bytes handled
Socket(3)(Read): WSARecv
Socket(3)(Read): pending read...
Send Trans: 3
Socket(3)(Send): New data triggered.
Socket(1)(Send): WSASend
Socket(3)(Send): Write completed
Socket(3)(Read): Read completed.
Socket(2)(Read): WSAGetOverlappedResult <- returns 0 bytes
serverlog:
prio: 1 client: 4 Connect from 127.0.0.1:1201
prio: 1 client: 4 Read -> Incomming bytes: 29
prio: 3 client: 4 Recieve, Trans: 0
prio: 3 client: 4 Send, Trans: 0
prio: 1 client: 4 Send -> WSASend
prio: 2 client: 4 Send ->Sent 71/71 bytes. (flags: 0)
prio: 3 client: 4 Recieve, Trans: 2
prio: 3 client: 4 Send, Trans: 2
prio: 1 client: 4 Send -> WSASend
prio: 2 client: 4 Send ->Sent 14/14 bytes. (flags: 0)
prio: 2 client: 4 Read -> 29/29 bytes handled
prio: 1 client: 4 Read -> WSARecv
prio: 2 client: 4 Read -> Pending read inited
prio: 0 client: 4 0 bytes read!
prio: 1 client: 4 Read -> aborting, dead or shutting down...
What am I doing wrong?
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One thing to make sure with IOCP is that you should make sure the same socket is not serviced by more than one thread at a time otherwise you will have problems.
John
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John M. Drescher wrote:
One thing to make sure with IOCP is that you should make sure the same socket is not serviced by more than one thread at a time otherwise you will have problems.
Why? Im using CriticalSections..
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I am trying to get a custom cursor working under DirectInput and Direct3D. The direct input is taken care of, I have my code to give me the screen coords that I want. The problem is I can't get my cursor to display at those coords. I am using the Scrawl example in the DX8 SDK as a guide. Here is the method:
void CShell::UpdateCursor(void)<br />
{<br />
PAINTSTRUCT ps;<br />
HDC hDC;<br />
<br />
hDC = BeginPaint( hWnd, &ps );<br />
if( NULL == hDC ) return;<br />
<br />
DrawIcon(hDC, iCursorX, iCursorY, hCursor);<br />
<br />
EndPaint( hWnd, &ps );<br />
}
I have tried calling this before, during and after the d3d beginScene and endScene. Maybe the DrawIcon call isn't working because the project is d3d, but I couldn't find anything to indicate this.
Any advice would be greatly appreciated.
....now where does this plug in....
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How to limit resizing of the window? (Minimal size should be 100x100).
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Hi,
I'm very new to MFC and have a very basic question.
How do I fire an event/massage from my program?
For example,
In the Tree Control,
Right Click on the Tree Control doesn't change the selection, so by using
m_nTree.GetSelectedItem(), I get the item which was selected earlier (even if I right click on a different item). If there was any way to trigger TVN_SELCHANGED event from the handler of right click event, my task would have been easier.
Please help.
Thanks,
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try PostMessage or SendMessage.
Sonork 100.41263:Anthony_Yio
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How can I add a custom menu to Internet Explorer(i.e an extra menu to Internet Explorer like utilities to do certain task)
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Hi group,
I am using OLE to interact with MS acces ,to import a CSV file into a table in the database.I am using Access Application object and calling its TransferText function to do it.As it runs into a separate process,i am facing a problem.My program is using this table,so i must know ,when the transfering operation is completed,and ensure that all the database dependent operations are supende till than,is there any method to do it?
Could the experts give any idea?
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I'm trying to learn how to generate a random number (for a jukebox to play MIDI songs). I bought the C++ standard library reference book and it explains what rand( ) does, but I've not been able to get it to work yet. I don't see any complete examples. I have several books, but they don't talk about rand( ). I also have discovered the random_shuffle function as well, but don't know how to make it work. The biggest problem I've had so far with programming is to implement the code for the various functions. Anyway, I was hoping someone(s) would give me a simple working example of both
1. rand( )
2. random_shuffle( )
I would appreciate it much,
Thanks...Dave
"The man who reads nothing is better educated than the man who reads nothing but newspapers."- Thomas Jefferson
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// Seed the random number generator
srand( time(0) );
// This is the highest number we want
const int nMaxNum = 1234;
// Generate it
int nNum = rand() % nMaxNum + 1;
rand() gives us a number between 0 and RAND_MAX (which if i recall correctly is ~32768 on VC6), so to convert it to the range we want, we divide it by the max number and take the remainder.
random_shuffle() randomises the order of components in a random access container such as a vector - you should not be using this function to generate a random number, but instead you could insert the records for all the songs into a vector, and then call random_shuffle on the vector to randomise it.
e.g.
struct Record
{
string sName;
// Data for the song itself
};
vector<record> vSongs;
// Add some songs
vSongs.push_back( record1 );
vSongs.push_back( record2 ); // etc...
// Randomise them
random_shuffle( vSongs.begin(), vSongs.end() );
Dave
http://www.cloudsofheaven.org
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Thanks Dave,
I'll give it a try. I was trying to use the get_time( ) function, but didn't think of doing it the way you did. Is get_time something entirely different?
Thanks much, Dave
"The man who reads nothing is better educated than the man who reads nothing but newspapers."- Thomas Jefferson
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By the look of things, get_time() retrieves a time from an input stream - but i have never used it so i'm not sure. time() retrieves the time from the system clock instead.
Dave
http://www.cloudsofheaven.org
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Thanks for the great example Dave, I'll spend some time with it. I did get the rand() working.
Thanks, Dave
"The man who reads nothing is better educated than the man who reads nothing but newspapers."- Thomas Jefferson
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My application uses a single window, but I'd like it use real time video from a capture card as the background, and have text displaying over it.
I'd like input text displayed in one area of the window, output text in another area etc..
My concept is to have additional windows with transparent backgrounds for displaying the text.
I have to admit I'm a rookie programmer, so hope someone can help or point me in the right direction.
regards
ribbs
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I have a tree view that has some drag and drop features however i would like to cuase the tree to scroll when the user drags item to the bottom of the tree does how do i cuase the tree view to scroll ?
on a side not i want to be able to handle multiple popup menu clicks in 1 function within the tree view how would i determine what menu item was clicked? and is there a function that already exists that i can use?
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