C / C++ / MFC

6-Oct-03 7:28

ray_li wrote:
But I just wonder why I didn't find ??? in the registry.

Why you didn't find what?

Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?

Open File

Anonymous6-Oct-03 2:39

6-Oct-03 2:39

I was ebla to open the file, but I have trouble getting data.
My file looks like this:
account amount pendamount
123456 231.00 78.00
I need to read the data into variable account and amount then use get() again with no argument in order to through away the new line character at the end of the line .
Thanks

David Crow6-Oct-03 3:01

6-Oct-03 3:01

Anonymous wrote:
...but I have trouble getting data.

Show us the code you are using.

Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?

Anonymous6-Oct-03 3:06

6-Oct-03 3:06

char c;
while (inpf.get(c)) {
cout.put(c);
}
the second version:
inpf.seekg(ios::beg);
static char read_array[10]; inpf.read(read_array,15);

Anonymous6-Oct-03 3:08

6-Oct-03 3:08

char c;
while (inpf.get(c)) {
cout.put(c);
}

David Crow6-Oct-03 3:26

6-Oct-03 3:26

Are you sure this is what you are using? Your original request was to "read the data into variable account and amount then use get() again with no argument in order to through away the new line character at the end of the line." What you have here is not even close. It simply reads and displays one character at a time of the file.

See if this is any closer:

string account, amount, pendamount;
while (...)
{
    inpf.getline(account, 15, ' ');
    inpf.getline(amount, 15, ' ');
    inpf.getline(pendamount, 15, ' ');
}

Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?

Anonymous6-Oct-03 4:10

6-Oct-03 4:10

I added header <string> to support string.
My modified code:
string account, gallons;
while(!inpf.eof())
{inpf.get(account, 15, ' ');
inpf.get(gallons, 15, ' '); }
When I compile I get this error:
"'class std::basic_istream<char,struct std::char_traits<char=""> > &__thiscall std::basic_istream<char,struct std::char_traits<char=""> >::get(char *,int,char)' : cannot co
nvert parameter 1 from 'class std::basic_string<char,struct std::char_traits<char="">,class std::allocator<char> >' to 'char *'
No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called"
Any idea why? I am a new to C++

c praogramms to disabling CTRL ALT Del keys in windows 2000

jhwurmbach6-Oct-03 4:25

jhwurmbach

6-Oct-03 4:25

Anonymous wrote:
...]cannot convert parameter 1 from 'class std::basic_string,class std::allocator >' to 'char *'[...]

This is about as specific as C++ error messages get. Big Grin | :-D

It means that you provided a std::string where a char* was expected. The C++ compiler had no clue how to convert the string into a char* and threw the error.
You need to give the get()-function a char-array of the length 16 (15 chars you are expecting and one for the trailing zero).

Who is 'General Failure'? And why is he reading my harddisk?!?

AzNain6-Oct-03 1:17

AzNain

6-Oct-03 1:17

hi! i want to read c source code sample to diable ctrl+alt+del keys combinations in windows 2000. because i have a sample programms listed below but it does not work in windows 2000. hope to hear from u soon.
the sample programms is as :

************************************************start

#include <windows.h>

int WINAPI WinMain (HINSTANCE, HINSTANCE, LPSTR ,int)
{
BOOL old;
SystemParametersInfo( SPI_SCREENSAVERRUNNING, 1, &old, 0);
MessageBox(NULL, "Ctrl-Alt-Del, Alt-Tab, and some other system keys are now disabled. "
"Test this for yourself by pressing some of these key combinations. "
"Note that you can still switch to other applications using the Taskbar buttons. "
"For more precise control over the system keys and task switching operation, get "
"KeyBlock from http://members.aol.com/phord (You can also find the source code to "
"this demo there.)", "Poor Man's KeyBlock demo", MB_OK);
SystemParametersInfo( SPI_SCREENSAVERRUNNING, 0, &old, 0);
return 0;
}
*****************************************************end

Re: c praogramms to disabling CTRL ALT Del keys in windows 2000

Rickard Andersson²⁰6-Oct-03 1:31

Rickard Andersson²⁰

6-Oct-03 1:31

This is not hte first time someone ask this. Search this message board or Goggle for "gina.dll".

Rickard Andersson
Here is my card, contact me later!
UIN: 50302279
Sonork: 37318
Interests: C++, ADO, SQL, Winsock, 0s and 1s

Re: c praogramms to disabling CTRL ALT Del keys in windows 2000

David Crow6-Oct-03 3:02

Drop-down menu in a ComboBox

6-Oct-03 3:02

Rickard Andersson18 wrote:
...Goggle for "gina.dll".

Perhaps you meant msgina.dll!

Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?

Rickard Andersson²⁰6-Oct-03 0:55

Rickard Andersson²⁰

6-Oct-03 0:55

I've created a como box in pure Win32 API. But when I click to showthe list it doesn't appear, well , it does, but its heigth is ~2 pixels high Hmmm | :|

How do I change the heigth ofthe drop-down menu in my Combo box control?

Rickard Andersson
Here is my card, contact me later!
UIN: 50302279
Sonork: 37318
Interests: C++, ADO, SQL, Winsock, 0s and 1s

Re: Drop-down menu in a ComboBox

Anand Paranjpe6-Oct-03 1:37

Anand Paranjpe

6-Oct-03 1:37

hi,
work on WM_DRAWITEM with struct DRAWITEMSTRUCT
Set CtlType and rcItem to set height of combobox.

The chosen One Smile | :)

Re: Drop-down menu in a ComboBox

Roger Allen6-Oct-03 5:04

Roger Allen

6-Oct-03 5:04

There is only one function for setting the size of the DropWindow. Thats MoveWindow. The rectangle you move the window to includes the drop area. When the drop window is not shown, the control limits its client area to the correct height for a combo box. So just use a larger height on your rectangle when you position the window.

Roger Allen
Sonork 100.10016

Were you different as a kid? Did you ever say "Ooohhh, shiny red" even once? - Paul Watson 11-February-2003

Attach debugger programatically

jmkhael6-Oct-03 0:46

jmkhael

6-Oct-03 0:46

I need to do it from the code, to attach a debugger to a process id, just the same as we can do it from the task manager when u right click a process and click debug.

Any help would be appreciated

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Duncan Edwards Jones6-Oct-03 1:27

Duncan Edwards Jones

6-Oct-03 1:27

Check out the following API calls:-

<br />
Private Declare Function DebugActiveProcess Lib "kernel32" (ByVal dwProcessId As Long) As Long<br />
Private Declare Function WaitForDebugEvent Lib "kernel32" (lpDebugEvent As DEBUG_EVENT_BUFFER, ByVal dwMilliseconds As Long) As Long<br />
Private Declare Function ContinueDebugEvent Lib "kernel32" (ByVal dwProcessId As Long, ByVal dwThreadId As Long, ByVal dwContinueStatus As Long) As Long<br />

I only have this in VB - I'm guessing you want a C/C++ example...

'--8<------------------------
Ex Datis:
Duncan Jones
Merrion Computing Ltd

jmkhael6-Oct-03 2:25

jmkhael

6-Oct-03 2:25

Thanks for your help
but i already checked these APIs, and the prob is that im not developping my own debugger i just want to attach to the VC++ debugger. whereas these APIs are issued by the debugger.
Hope you get what i mean

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Steve S6-Oct-03 3:13

Steve S

6-Oct-03 3:13

Ah. You mean that you want your application to attach the VC++ debugger to it, rather than attach your program AS the debugger.

Will "MSDEV -p procid -e procid" not do this?

Steve S

jmkhael6-Oct-03 3:41

jmkhael

6-Oct-03 3:41

Exactly!
Thank you all for your help

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Mike Dimmick6-Oct-03 4:41

Mike Dimmick

6-Oct-03 4:41

If you want to use the same debugger as configured on the system for just-in-time debugging (which I think is the same as the one used by Task Manager), you can find the path in the Debugger value of the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug.