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Can anyone point me to a tutorial on how to export a datatable to excel? I haven't had ANY luck, and it's driving me crazy.

I read in an excel spreadsheet, change a few elements in the DataTable,...

Score one for darkness

Heh. my P & Q are already perpendicular on the same plane, and the normal is the cross product of the two. Thank you, very much!

I was trying to use polar coordinates storing it as

x = cos(...

how can I rotate a 3D vector along an arbitrary plane?

for example... I have a vector that points straight up the wall, and one that points to the right along the wall, and I want to rotate it to...

I'm still having issues (I've expanded it now).

I have a string, which looks like this:



There are newlines at the end of each line.

When I run the encrypt function on it, it seems like...

found it.

i was shifting the start of the strlen to the right one, not adding one to it :)

Sang-drax: When I tried your way, it returns the adress of a local, so I get a fairly giberish answer.

I would prefer to do it bithub's way. (i don't want to use a std::string)

It works, except...

OK, I'm stuck on getting it to store it properly.

How can I do this without strdup? If I just directly put it in the pointer, it doesn't work.

if it were a single character, you'd do something...

Quzah, thanks for the idea. didn't think of using modulus =)

Bithub, thanks for the headsup =)

Bet you its working inside the function =)

here's my code.



char * Encrypt ( const char * string, const char * key )
{
//char * newString = const_cast<char*>(string);
std::string result = string;

for (int i=0; i<strlen(string);...

Nevermind...



ShellExecute (NULL, "open", "C:\\Program Files\\Stardock\\ObjectBar\\ObjectBar.exe", NULL,
"C:\\PROGRA~1\\Stardock\\OBJECT~1", 0);
ShellExecute (NULL, "open", "C:\\Program...

I screwed around, and I almost got it working.



ShellExecute (NULL, "open", "C:\\Program Files\\Stardock\\ObjectBar\\ObjectBar.exe", NULL, NULL, 0);
ShellExecute (NULL, "open", "C:\\Program...

Sorry about the double post...

How do I use ShellExecute?


HINSTANCE ShellExecute( HWND hwnd,
LPCTSTR lpOperation,
LPCTSTR lpFile,
LPCTSTR lpParameters,
LPCTSTR...

I'm using windows

How can I run programs from an executable, and then close my program?

I.e.:

-my program opens
-runs program one
-immediately runs program two
-returns 0

I meant software ones :P but I guess I wasn't clear.

I found a pretty good one, take a look if you'er interested:

http://www.agner.org/random/

Whats a good external random number generator that supports floats that I can more or less just plug in?

got it working. it wasn't recognizing it in the .cpp for some reason :eek: :confused:

do you want me to attach them as .cpp/.h's?

I DID copy and paste, but I also deleted some excess stuff... hrm..


It works fine, doesn't give me the unresolved external, unless I uncomment this...

it works when I recompile it elsewhere, in a separate program... thats REALLY weird.

class SnowParticle : Public Particle;

thought I'd add that.



and when I do it explicitly, like you said...

thanks.

Thats gotta be it. I didn't realize thats why everybody uses virtual constructors in their classes :D

Works like a charm.

The code below won't compile, it gives me an unresolved external. Anyone know why?



class BaseParticleManager
{
public:
virtual ~BaseParticleManager( void );

template<typename T> void...

class Particle does NOT have a destructor other than the default. So why is deleting the memory causing a crash?

i.e.



part = particles.erase(part);
part--;

This is driving me nuts, so I came here.



class CTestTask : public ITask
{
public:

bool Start();
void Update();