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https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=99331[^]
Can someone check to see if the above bug was fixed in VC++ 2008.
I've got some code that is based on the assumption that virtual properties works, i want to know if i have to modify the code or upgrade to 2008.
...cmk
The idea that I can be presented with a problem, set out to logically solve it with the tools at hand, and wind up with a program that could not be legally used because someone else followed the same logical steps some years ago and filed for a patent on it is horrifying.
- John Carmack
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You'll have to modify the code - that behaviour is still present in VS2008
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Based on their bug response i'm not too surprised.
Thanks for checking, i really didn't want to install VC 2008 Express just to check.
...cmk
The idea that I can be presented with a problem, set out to logically solve it with the tools at hand, and wind up with a program that could not be legally used because someone else followed the same logical steps some years ago and filed for a patent on it is horrifying.
- John Carmack
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Hi all,
I have written a Javascript code that moves a dot around the screen randomly, and it does output my result at the end of the code, however I feel I have gone as far as I can with this code and would like a different way to create the program. First thought was using C++,
Here is the code:
<code> "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta http-equiv="Content-Style-Type" content="text/css">
<meta http-equiv="Content-Script-Type" content="text/javascript">
<style type="text/css">
body {
overflow:hidden;
}
#container div,#timer {
width:250px;
line-height:30px;
padding-left:10px;
border:3px double #999;
margin:4px 0;
}
.hide {
display:none;
}
#dot {
width20px;
font-size:36px;
color:#f00;
position:absolute;
}
#coords {
padding:10px;
border:3px double #999;
margin-top:10px;
font-family:courier,monospace;
font-size:12px;
text-align:justify;
}
</style>
<script type="text/javascript">
/****** these values may be edited *****/
var iterations=2000;
var height=999;
var width=999;
var temp1=500;
var temp2=500;
/***************************************/
var speed=10;
var c=0;
var ur=0;
var ul=0;
var dr=0;
var dl=0;
var s=0;
var xc=0;
var yc=0;
if(window.addEventListener){
window.addEventListener('load',randomtest,false);
}
else {
if(window.attachEvent){
window.attachEvent('onload',randomtest);
}
}
function randomtest(){
secs=Math.floor((iterations-c)*speed/1000);
x=Math.floor(Math.random()*width);
y=Math.floor(Math.random()*height);
document.getElementById('coords').innerHTML+=x+':'+y+', ';
document.getElementById('dot').style.left=x+'px';
document.getElementById('dot').style.top=y+'px';
if((x>=temp2)&&(y>=temp1)) {
ur++;
temp1=x;
temp2=y;
}
else {
if((x<=temp2)&&(y>=temp1)) {
ul++;
temp1=x;
temp2=y;
}
else {
if((x>=temp2)&&(y<=temp1)) {
dr++;
temp1=x;
temp2=y;
}
else {
if((x<=temp2)&&(y<=temp1)) {
dl++;
temp1=x;
temp2=y;
}
}
}
}
c++;
xc=xc+x;
yc=yc+y;
if(c>iterations) {
clearTimeout(rnd);
document.getElementById('timer').className='hide';
document.getElementById('dot').className='hide';
document.body.style.overflow='visible';
document.getElementById('upright').firstChild.nodeValue='up right total='+ur;
document.getElementById('upleft').firstChild.nodeValue='up left total='+ul;
document.getElementById('downright').firstChild.nodeValue='down right total='+dr;
document.getElementById('downleft').firstChild.nodeValue='down left total='+dl;
document.getElementById('container').className='';
document.getElementById('coords').className='';
alert('average coords are n\nx='+Math.round(xc/c)+'\ny='+Math.round(yc/c));
return;
}
document.getElementById('timer').firstChild.nodeValue='time remaining : '+secs+' seconds.';
rnd=setTimeout('randomtest()',speed);
}
</script>
</meta></meta></meta></head>
<body>
<div id="timer"> </div>
<div id="container" class="hide">
<div id="upright"> </div>
<div id="upleft"> </div>
<div id="downright"> </div>
<div id="downleft"> </div>
</div>
<div id="dot">•</div>
<div id="coords" class="hide"></div>
</body>
</html>
</code>
Can anyone help out with some C++ code to get me started? I would be forever greatful.
Skie
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A thumbwheel switch (swt) has been assigned a 16 element array to determine which number is selected. How would I access that data?
When I try *swt, I recieved error messages and warnings. When I use swt[0-16], I get zeroes as the switch values.
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Without actually seeing your code and if you are using
swt[0-16]
Then the actual index into the array is -16.
Larry J. Siddens
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Original code looks like this:
if (local->decode)
{
swt[0] = 0;
swt[1] = 1;
swt[2] = 1;
swt[3] = 1;
up to [15]
}
locals->temp = 0;
for (mode_index = 0; mode_index < 16; mode_index++)
{
if (swt[mode_index] == 1)
{
locals->temp += (1 << mode_index);
}
}
====================================
What I am attempting to do looks like this where I tried *swt and swt[0], swt[1], swt[2], etc...:
nom3as = nim3as
if (nom3as == 0)
nom3ac = 0;
else
nom3as |= 0x00002000;
nom3ac = swt;
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In your last line:
nom3ac = swt;
You're setting the variable nom3ac to the address of the start of the array (or the address of swt[0].)
Is this correct?
Larry J. Siddens
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What about a good C language tutorial?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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You can use only integral expressions as the switch expression.
What type of array is it?
If it is a character array, you must use the string functions in the if statement.
If it is an integral array, you are storing multiple values. You must use the array subscript [] to specify which element to check.
«_Superman_»
I love work. It gives me something to do between weekends.
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I tried using [].
Will I have to use it for each element of the array?
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Yes.
Say you have an array:
int p[] = { 5, 4, 3, 2, 1 };
then to get the 3rd element use:
int x = p[2];
This will set x to 3. Remember, arrays start at index 0 instead of 1.
To loop through
for( int 1 = 0; i < 5; i++ ) {
x = p[i];
}
Larry J. Siddens
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Yes. You will have 16 array elements ranging from swt[0] to swt[15]
«_Superman_»
I love work. It gives me something to do between weekends.
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Hi,
my VC++ 6.0 application calls my check_user_sp stored procedure that calls the sys.sp_helpuser system stored procedure:
-----
CREATE PROCEDURE check_user_sp
@inp_user VARCHAR(20)
AS
EXEC sp_helpuser @inp_user
-----
I have no problem running the application against database on the 2000 sql server(2000 - 8.00.760), but I get 'Invalid character value for cast specification' error with the same database on the 2005 sql server(2005 - 9.00.1399.06).
the sp_helpuser is dated 1996/08/14 10:33 on both 2000 and 2005 server, and I don't get error when exec my get_user_sp in the 2005 sql server management studio.
what is 2005 sql server doing to cause this?
THANKING FOR YOUR HELP!
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Hello!
try checking database collation settings / server collation settings.
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thanks! I checked and they have the same collation seetings.
I looked into the sp_helpuser code and then realized that the one in sql server 2005 returns 7 columns but the one in sql server 2000 returns 6. My application expects 6 columns and gets the error with sql server 2005.
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Hi,
I am sort of familiar with the functions:
GetPrivateProfileString()
WritePrivateProfileString()
used with parsing a .INI file.
What I want to do is get/set the Section names within a .INI file.
For example, if I had the .INI file
[c:\root\database\images\country.dat]
value1=1
value2=1024
value3=500
[FILENAMES]
0=c:\imagery\color\map1.jpg
1=c:\imagery\topology\elevation.dat
[c:\imagery\color\map1.jpg]
MapValue1=1
MapValue2=255:255:255
[c:\imagery\topology\elevation.dat]
TopologyData1=0
TopologyData2=1000
How can I dynamically access the Section names, within the brackets [ ], when I don't know what they could contain? AND can I change these (like re-path) and then update the .INI file?
Thank you.
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That looks to be exactly what I need, half of it anyways. The other half is modifying/writing back these section names.
Thanks a million!
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john john mackey wrote:
What I want to do is get/set the Section names within a .INI file.
Use GetPrivateProfileString(NULL, ...).
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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Sorry, but this is the closest match forum I could find on CP:
I have a native C dll that exports one function besides DllEntryPoint, FuncX. I'm trying to find out how FuncX communicates with it's caller, because it has a void return type and no parameters. When I call it from a C# harness, I get an AccessViolationException - Attempted to read or write protected memory.
I have a hunch that its client application may allocate a buffer for sending or receiving values from the dll. Is this a valid hunch?
I can't debug the client application because for some reason it doesn't run, so I can't start it and attach to the process. I can, however, disassemble it in IDA Pro, but don't know how to, if I can, try and debug it in there.
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Can you debug it from a C or C++ client, so you can step into the function in (native) disassembly mode?
Brady Kelly wrote: I'm trying to find out how FuncX communicates with it's caller, because it has a void return type and no parameters
So there's no visible interface? That says global data to me - which requires a commonly defined symbol.
Brady Kelly wrote: I have a hunch that its client application may allocate a buffer for sending or receiving values from the dll. Is this a valid hunch?
Sounds possible - but how does the buffer get into FuncX?
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Stuart Dootson wrote:
Can you debug it from a C or C++ client, so you can step into the function in (native) disassembly mode?
I'd have to write that client, after a ten minute C refresher, but it's possible, and I'm not scared.Stuart Dootson wrote: Sounds possible - but how does the buffer get into FuncX?
I suspect it's at something like a constant, known offset or address in the calling code, if that's at all possible.
Right now I'm busy with an IDA Pro tutorial, to get started exploring the internals with some muscle and some baby help behind me.
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Brady Kelly wrote: I suspect it's at something like a constant, known offset or address in the calling code, if that's at all possible
That sounds scary  Especially as DLLs can be relocated...
Brady Kelly wrote: I'd have to write that client, after a ten minute C refresher, but it's possible, and I'm not scared.
extern __declspec(dllexport) void FuncX();
#pragma comment(lib, "whatever-the-DLLs-lib-file-is");
int main(int argc, char** argv)
{
FuncX();
}
or if you don't have a lib file:
#include <Windows.h>
typedef void (*FuncXType)();
int main(int argc, char** argv)
{
HMODULE myDll = ::LoadLibrary(DLL-name);
FuncXType pFuncX = (FuncXType)GetProcAddress(myDll, "FuncX");
pFuncX();
}
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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