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To finish up your example:
_bstr_t *alt; //this is changed a bit
char Msg[200];
strcpy(Msg, (char*)(*alt)); //to go from _bstr_t to char[]
alt = new _bstr_t(Msg); //to go from char[] to _bstr_t
_bstr_t wraps up the BSTR data type
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THANK YOU BERY MUCH Sir!!! 
Now I have a _bstr_t value, but I need to have a BSTR, so HOW COULD I CHANGE FROM _bstr_t pointer to BSTR pointer.
I have the
_bstr_t *alt;
BSTR *restxt;
HOW COULD I PUT THE VALUE OF _bstr_t in restxt??????
Thanks and BEST REGARDS!!!!
Javier.
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search in MSDN for USES_CONVERSION A2OLE.
Good luck,
Dror
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See MSDN library for this function:
BSTR SysAllocStringByteLen(
LPCSTR psz,
unsigned int len
);
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I've been trying to solve the Josephus Problem using the Linked List approuch. I was able to get the last person to be alive.. and to delete the 1st person.. BUT.. I want to be able to delete Every one in the link EXCEPT the last one.. Any ideas how to do that ?! Thank you... here's my Code so far...
// OQ8
//oq8@gmx.net
#include <iostream.h>
#include <conio.h>
#include <stdlib.h>
#define MAX 20
typedef int node_type;
struct node_rec
{
node_type num;
node_rec *next;
};
typedef node_rec *node_ptr;
////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////
void insert(node_ptr temp, node_ptr &headptr)
{
node_ptr curr;
node_ptr prev;
if (headptr == NULL)
{
headptr = temp;
return;
}
if (temp -> num < headptr -> num)
{
temp -> next = headptr;
headptr = temp;
return;
}
prev = headptr;
curr = headptr;
while ((curr != NULL) && (curr -> num < temp -> num))
{
prev = curr;
curr = curr -> next;
} // while
prev -> next = temp;
temp -> next = curr;
} // insert
////////////////////////////////////////////////////////////////////
int delete_node(node_type temp_num, node_ptr &headptr)
{
node_ptr curr;
node_ptr prev;
prev = headptr;
curr = headptr;
while ((curr != NULL) && (curr -> num != temp_num))
{
prev = curr;
curr = curr -> next;
} // while
if (curr == NULL)
{
// cout << "Number not in list" << endl;
return 1;
}
if (curr == headptr) headptr = curr -> next;
else prev -> next = curr -> next;
delete(curr);
return 0;
} // delete_node
////////////////////////////////////////////////////////////////////
void print_list(node_ptr headptr)
{
node_ptr temp;
cout << " LIST OF NUMBERS : ";
temp = headptr;
while (temp != NULL)
{
cout << " " << temp -> num;
temp = temp -> next;
}
cout << endl;
} // print_list
int last(int n, int k)
{
int person[MAX]; /* 1 means person is alive, 0 means dead */
int i; /* person who has punch */
int count; /* number of times punch passed to alive person */
int q;
for (i = 0; i < n; i++) person = 1; /* everyone starts alive */
i = 0; /* assume punch starts at person 0 */
person = 0; /* person with punch dies */
for (q = 1; q < n; q++)
{
count = 0;
while (count < k) /* pass punch k times */
{
i = (i + 1) % n; /* pass punch */
if (person)
count ++; /* increment if alive person in circle */
}
person = 0; /* person with punch dies */
} /* person i was last to die */
return i;
}
// main function //
////////////////////////////////////////////////////////////////////
int main()
{
int N, K, T, M, L, count, dl;
node_ptr headptr;
node_type Pos;
node_ptr temp;
headptr = NULL;
N=99;
K=T=M=L=0;
cout<<"How many people (N)? ";cin>>N;
if (N == 0) return 0;
cout<<" Passing count (K)? ";cin>>K;
cout<<" the Last person to be alive (T)? ";cin>>T;
for (int v=1;v<=N;v++)
{
temp = new(node_rec);
temp -> num = v;
temp -> next = NULL;
insert(temp, headptr);
} // a linked list has been created up to (1 to N)
print_list(headptr);
L=last(N,K);
M = (T-1 - L + N) % N + 1; /* rotate solution so person t is last to die */
count=N;
Pos=M;
dl=0;
for(int X=0;X<n;x++)
{
cout<<" now="" delete="" person="" ["<<pos<<"]"<<endl;
delete_node(pos,="" headptr);
print_list(headptr);
pos+="K;
if" (pos="">N) Pos= Pos % N;
}// I want to delete everyone BUT #T.. ?? Help please...
return 0;
} // main
//---------End Of Josephus-----------
now.. how cal i goto the head of the link ! and not to count the deleted numbers ?
here's some numbers to test...
N K T
15 11 7
12 7 1
5 1 2
5 3 4
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Hey guys, Check this out,, this is a function that converts a int to a string, it compiles and works fine with VC++.. problem is i need it to compoile on Sun, HP and DEC. I get a compile error <sstream> not found, so i tried using the <strstream> header, when i do that it dosent recognize what std::ostringstream is.. Im totally lost when it comes to unix compilers,, can anyone help me convert this code so unix g++ will understand it and compile it. Pleaseeeee
#include<sstream>
std::string itos(int arg)
{
std::ostringstream buffer;
buffer << arg; return buffer.str();
}
Thank You!
say what?
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hummmm. i guess this dicussion board dosent like the angle brackets, seems whatever is inside them dosent show up on the screen,, anyway i will rewrite this post.
Hey guys, Check this out,, this is a function that converts a int to a string, it compiles and works fine with VC++.. problem is i need it to compile on Sun, HP and DEC. I get a compile error sstream not found, so i tried using the strstream header, when i do that it dosent recognize what std::ostringstream is.. Im totally lost when it comes to unix compilers,, can anyone help me convert this code so unix g++ will understand it and compile it. Pleaseeeee
#include<sstream> //sstream
std::string itos(int arg)
{
std::ostringstream buffer;
buffer << arg;
return buffer.str();
}
Thank You!
say what?
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Not all compilers support have the standard library, and not all of them can support it (especially older compilers).
You need to make sure you're using the most recent compilers from your vendors and if they don't include a standard library, you may need to acquire one.
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Hi
How can I get a type library name (without registring the type library in system registry) after loading this library by
LoadTypeLibEx(szFileName.Copy(), REGKIND_NONE, &hTypeLib);
Thanx
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Hi
How can I get a type library name (without registring the type library in system registry) after loading this library by
LoadTypeLibEx(szFileName.Copy(), REGKIND_NONE, &hTypeLib);
Thanx
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Now I write the program that move the transparent bitmap (sprite) across the screen with MFC (Use BitBlt function) but the problem is when I run program for a while (20 min) the sprite that is moving is disappear from the screen but the program is still running. Do you know what's happen and how can I reslove it?
Thank you 
Kyousuke
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are the co-ordinates taking it out of the clipping region?
---
"every year we invent better idiot proof systems and every year they invent better idiots"
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No, because I wrote the function that control the sprite to move on the circle line(The train is running on rail). And the sprite move around it several round until from 5:00AM-3:00PM->Simulate time(1 hour Simulate time = 2 min in real world) and after that it disappear.
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Based on the info you given, I am not sure, but this could be a timer fault!
Perhaps you could show the code fragment of the timer function or where you are actually animating the sprite round the circle, may be I could solve it! 
In case you cannot send the code, just look into the timer code yourself and see what is happening. For example check how/where are you setting the timers.
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Now, I think that the problem is LoadBitmap function, because I want to flip the train when move to the left/right side of screen. But I don't know which function I must use, so I load new bitmap by "LoadBitmap" instead. And when I remove that part of code, no problem is occur.
Here is my code:
for(i=0;i<totaltraini;i++)
{
if(x1[i]="">34 && x1[i]<354 && f1[i]) {sprite1[i].LoadBitmap(IDB_TRAIN1); f1[i]=false;}
//else if(y1[i]>10 && y1[i]<280 && !f1[i]) {sprite1[i].LoadBitmap(IDB_TRAIN2); f1[i]=true;}
psprite1[i]->DrawTransparent(&memDC, x1[i], y1[i], RGB(0,0,0));
//if(x0[i]>34 && x0[i]<354 && f0[i]) {sprite0[i].LoadBitmap(IDB_TRAIN1); f0[i]=false;}
//else if(y0[i]>10 && y0[i]<280 && !f0[i]) {sprite0[i].LoadBitmap(IDB_TRAIN2); f0[i]=true;}
psprite0[i]->DrawTransparent(&memDC, x0[i], y0[i], RGB(0,0,0));
//if(x[i]>34 && x[i]<354 && y[i]==10 && f[i]) {sprite[i].LoadBitmap(IDB_THEAD2); f[i]=false;}
//else if(y[i]>10 && y[i]<280 && x[i]==34 && !f[i]) {sprite[i].LoadBitmap(IDB_THEAD3); f[i]=true;}
//else if(x[i]>34 && x[i]<354 && y[i]==280 && f[i]) {sprite[i].LoadBitmap(IDB_THEAD4); f[i]=false;}
//else if(y[i]>10 && y[i]<280 && x[i]==354 && !f[i]) {sprite[i].LoadBitmap(IDB_THEAD1); f[i]=true;}
psprite[i]->DrawTransparent(&memDC, x[i], y[i], RGB(0,0,0));
}
** (//) Mean if I remove that line it work perfect.
Do you know which function I should use to flip image or have other way to do?
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Why all this LoadBitmap(..) stuff? Just load the bitmap once and then change its position based on the timer increment.
Put a WM_TIMER message and then inside it move the bitmap around by just passing it X and Y coordinates, the same sprite (bitmap) will just move around. In case you are trying to assign a path as the animation co-ordinates, just create an array of x and y coordinate and just pass then as x[i] and y[i] to the XY coordinate of the bitblits.
This is just the timer fault as I expected. Try the above and it fixes hopefully.
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If you're using BitBlt, you must also be using or building a mask and using 3 blts to build the image, right ? I'd say the problem is that you have a small resource leak, and eventually you are running out of GDI resources, so the drawing comes to a stop, although the program is still trying to work, it has no resources to draw with.
Christian
The content of this post is not necessarily the opinion of my yadda yadda yadda.
To understand recursion, we must first understand recursion.
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Hello,
I will send a key message ('ALT'+'d') to a foreign MFC window to close it.
The foreign window is a dialog window from an application.
The dialog window has one button that must be pressed.
I have the window handle of this window. I try following:
CWnd Wnd;
Wnd.Attach(WindowHdl);
int VkCode=LOWORD(VkKeyScan('d'));
int ScanCode=MapVirtualKey(VkCode,0);
long lParam=65536*ScanCode+1*0x20000000;
Wnd.PostMessage(WB_CHAR,'d',lParam);
Wnd.Detach();
This don't work. Can someone help me.
bye
Christian
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Cool name there BTW.
I'm lost, what are you doing here ? To close this window, do this:
Wnd.DestroyWindow();
Christian
The content of this post is not necessarily the opinion of my yadda yadda yadda.
To understand recursion, we must first understand recursion.
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I will be very pleased if you help me with this.
1. How can I open email client (Outlook, TheBat, etc. no matter what is installed) so it displays "New mail" dialog (sending mail)
2. How can I open email client so it displays "Reply" dialog (from, to and subject are passed to it somehow).
Thank you.
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Answer to question #1. is
ShellExecute (m_hWnd, "open", "mailto:", NULL, NULL, SW_SHOW);
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Hello, I need and example code of sorting ListView items by Name, using SortItems() function.
Any help appreciated,
Thanks,
Deian
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OK, bitmaps are just dandy. Most of the time I'm plenty happy enough with them and the standard microsoft static control can be used nicely and easily for drawing a contained bitmap or icon. WHY NOT GIF/JPG?
I'm working on an application that has about 20 pictures I have to display at one point or another. They're all pretty much the same size and all 256 color. Anyway, bitmaps are just too big and adding this in to the resources pushes my exectuable (statically linking MFC) up to almost 5 MEG! A LOT of that is the bitmaps. I really would rather use GIF's. They're a lot smaller and since they can have transparent backgrounds it's easy to have them drawn transparent. It's funny but this is really the first time I've run into this and was actually amazed that it was even an issue.
Where is the MFC standard control for displaying GIF/JPG?!? I MUCH prefer C++ over Visual Basic but the basic picture control for VB does GIF/JPG just fine... easily. Why is this not part of MFC? Does someone know of a simple control I could use without re-inventing the wheel? How about a more advanced version that would resize the picture when I resize the control? How about one that includes "hot spots" where I could pop up messages or do "something" when they roll over it with the mouse?
Make me a believer again that MFC is better than VB... (I'm knocking MFC. NOT C++/COM/ATL/STL, yada yada yada)
Thanks,
Matt Philmon
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I know some of the GDI APIs got JPG support in Win 98. I remember seeing mentions of this in the past, but it was a while ago so I couldn't name exact functions. Search the Platform SDK for "JPEG" and you should be able to find them.
--Mike--
http://home.inreach.com/mdunn/
The preferred snack of 4 out of 5 Lounge readers.
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OLEPicture is the sollution. Search it on MSDN.
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