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I am getting this very strang problem while tracing my program with VS 6.0 debugger.
my program is written in VC++ 6.0, and it runs fine in release mode and in debug mode if I don't step into any functions.
But,my system looks like dead( freeze, stuck, what ever...) if I try to step into the program. This could happen any where in the program, it even happened at one line which contains only simple assignment statement (like: int x= 1;).
Would anybody give me some clues on this problem? Why do I get this? How to fix it?
Thank you very much in advance!
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I see this from time to time, usually when debugging multithreaded apps on XP. Never noticed it on W2K. Ofter press Ctrl+Alt+Del to bring up Task Manager brings it back to life. That is the only solution I've found.
Neville Franks, Author of ED for Windows. Free Trial at www.getsoft.com
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Which message do I need? I am trying NM_CLICK, and in that handler I check to see if any of my items is checked (have checkboxes). Problem is, the first item I click, triggers the event and the code steps into the function where I look for a checked item:
void CDlgFTP::OnClickLstftp(NMHDR* pNMHDR, LRESULT* pResult)
{
for( int index = 0; index < m_lstFiles.GetItemCount(); index++)
{
BOOL chk = m_lstFiles.GetCheck(index);
if (chk)
{
m_bGet.EnableWindow(TRUE);
}
}
*pResult = 0;
}
but this time around, chk is 0, but when I check the second item, and step into the code, the chk for element # 1 becomes 1, since its now checked. SO it looks like I am triggering my checkbox checking code prematurely. What message should I use instead?
Basically I want a button to get enabled when any item is selected in the listctrl.
Thanks,
ns
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Hi!
I added a menu to my dialog (through the Wizard) and I can't get any command notification from it.
ON_COMMAND(ID_SOME_COMMAND, OnSomeCommand)
void CSomeClass::OnSomeCommand()
{
}
OnSomeCommand never gets called. I did notice, however, that I do get a message in my DefWndProc function (message 273) but lParam = 0, when it should equal ID_SOME_COMMAND. What's wrong?
I'm using MFC's CDialog class...
Thanks for your help! 
---------------
Tired of Spam? InboxShield for Microsoft® Outlook® 2K/2K2/2K3
http://www.inboxshield.com
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Is CSomeClass a CDialog-derived object?
Is ID_SOME_COMMAND assigned to any of the menu items?
LukeV wrote:
...I do get a message in my DefWndProc function...
Are you using .NET?
Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?
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I'm using MFC's CDialog class...
---------------
Tired of Spam? InboxShield for Microsoft® Outlook® 2K/2K2/2K3
http://www.inboxshield.com
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Found the problem... I was using ModifyMenu to change the menu item's text, and it was setting the ID to 0.
---------------
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In a header file of one of my classes I have a private two dim array,
<br />
double V[][6] = {<br />
{-.01,0,0, -.2,-.2,1},
{.1,0,0, .2,-.2,1},<br />
{0,.11,0, -.2,.2,1},<br />
{.08,.09,0, .2,.2,1}<br />
};<br />
but this gives me a compiler error. It says "syntax error : '{'" and
"unexpected token(s) preceding '{'; skipping apparent function body".
Does anyone know why? All I want to do is declare and initialize it.
Also, lets say I have a 3-dim array, (which I cant initialize either until I fix my first problem)
<br />
double polygon[][][] = {<br />
{ V[0], V[1], V[2] },<br />
{ V[1], V[2], V[3] }<br />
};<br />
and I need a for loop to go thru polygon. I want to do something like:
<br />
for (int n = 0 ; n < polygon.length ; n++)<br />
for (int i = 0 ; i < polygon[n].length ; i++) {<br />
for (int k = 0 ; k < 3 ; k++)<br />
normal[k] = polygon[n][i][k+3];<br />
What do I replace the bold & underlined with? Would it be sizeof(polygon)/sizeof(polygon[0]) for the outer loop and sizeof(polygon[0])/sizeof(polygon[0][0]) for the inner?
This stuff confuses me.
Thanx for the help,
-Flack
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I got no errors with your two-dimensional array.
Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?
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<br />
<br />
#include <windows.h><br />
#include <math.h><br />
#include "Pix.h"<br />
<br />
class ZBuffer1 {<br />
<br />
private:<br />
double V[][6] = {<br />
{-.01,0,0, -.2,-.2,1},
{.1,0,0, .2,-.2,1},<br />
{0,.11,0, -.2,.2,1},<br />
{.08,.09,0, .2,.2,1}<br />
};<br />
<br />
double polygon[3][3][3];<br />
<br />
double L[1][3];<br />
<br />
double rgb[3];<br />
double p[30][7];
<br />
double FAR_Z;
double * zbuffer;<br />
double normal[3];<br />
<br />
int W, H;<br />
<br />
void init();<br />
<br />
void clearZbuffer();<br />
<br />
void projectVertex(double pt[], double p[]);<br />
<br />
void doShading(double pt[], double rgb[]);<br />
<br />
void displayPolygon(double polygon[][3]);<br />
<br />
<br />
void normalize(double v[]);<br />
<br />
double lerp(double t, double a, double b) {return a + t * (b - a);}<br />
<br />
int f2i(double t) {return max(0, min(255, (int)(255 * t)));}<br />
<br />
public:<br />
Pix pix;<br />
<br />
ZBuffer1(int, int);<br />
void setPix();<br />
};<br />
I try to compile and still get an error on the underlined line:
zbuffer1.h(14) : error C2059: syntax error : '{'
zbuffer1.h(14) : error C2334: unexpected token(s) preceding '{'; skipping apparent function body
I dont know what Im doing wrong.
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Flack wrote:
I dont know what Im doing wrong.
You are trying to initialize that array within the class itself. Try this:
class ZBuffer1
{
private:
double V[][6];
public:
ZBuffer1();
};
ZBuffer1::ZBuffer1()
{
V[0][0] = -0.01;
V[0][1] = 0.0;
V[0][2] = 0.0;
V[0][3] = -0.2;
V[0][4] = -0.2;
V[0][5] = 1.0;
V[1][0] = 0.1;
V[1][1] = 0.0;
V[1][2] = 0.0;
V[1][3] = 0.2;
V[1][4] = -0.2;
V[1][5] = 1.0;
V[2][0] = 0.0;
V[2][1] = 0.11;
V[2][2] = 0.0;
V[2][3] = -0.2;
V[2][4] = 0.2;
V[2][5] = 1.0;
V[3][0] = 0.08;
V[3][1] = 0.09;
V[3][2] = 0.0;
V[3][3] = 0.2;
V[3][4] = 0.2;
V[3][5] = 1.0;
}
Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?
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I think you have to first accept that this is not very easy to do in C/C++. A 2D array is an array of pointer to more arrays. In a declaration you can only have one unknown dimension []. So your second example will not compile. The first one might be an error related to
The rest must be specified. V is a pointer to a pointer, V[n] is a pointer and v[n][m] is a value. The [m] operator is saying advance i + k*m spaces to obtain the location.
You need to either dynamically allocate this with multiple news or allocs, or use constants to create the space in memory in the first place, so it is far easier just to store the dimensions in an integer and use this in your loops.
J.
----------------------------
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JWood wrote:
You need to either dynamically allocate this with multiple news or allocs, or use constants to create the space in memory in the first place, so it is far easier just to store the dimensions in an integer and use this in your loops.
Or use C++.. vectors
John
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Hey.
I was wondering if there was any way to get more than one line of text to appear in a static text control? I tried just putting a \n where I want the new line to start, but then any text after that is invisible.
So, I guess what I'm asking, is how do I turn:
43 text
into:
43
text
without using 2 separate static text boxes? (is this possible?)
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*ahem*
thanks. stupid mistake. it was only large enough for one line, not both. haha. sorry!!!
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Assuming a declaration of a character buffer:
char MyBuffer[10];
Will the following two statements produce the same results?
MyBuffer[5] = "x";
char* pMyBuffer = &MyBuffer;
pMyBuffer = pMyBuffer + 5;
*pMyBuffer = "x";
Thanks for your help,
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I think you meant 'x' and not "x".  Also, you're assuming the size of a character is 1 byte (which is true for non Unicode/MBCS systems). Finally, I would initialize pMyBufferwrite like this (just to be explicit):
char* pMyBuffer = & (MyBuffer[0]);
...
Apart from this, yes.
/ravi
Let's put "civil" back in "civilization"
Home | Articles | Freeware | Music
ravib@ravib.com
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Ravi Bhavnani wrote:
Also, you're assuming the size of a character is 1 byte (which is true for non Unicode/MBCS systems).
AFAIK a char in C/C++ is always one byte in size. And his example uses chars not TCHARs.
Regards,
Alvaro
Hey! It compiles! Ship it.
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Alvaro Mendez wrote:
AFAIK a char in C/C++ is always one byte in size.
Good point! 
I've been spending (way) too much time moving between CStrings, char* and XMLCh in my (Unicode) app. My mind is in a fog (i.e. more than usual).
/ravi
Let's put "civil" back in "civilization"
Home | Articles | Freeware | Music
ravib@ravib.com
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Ravi Bhavnani wrote:
I've been spending (way) too much time moving between CStrings, char* and XMLCh in my (Unicode) app.
Perfectly understandable. I don't remember the last time I used char in an MFC app. It's practically extinct.
Regards,
Alvaro
Hey! It compiles! Ship it.
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Not the way you have them. Here's how:
char MyBuffer[10];
// 1
MyBuffer[5] = 'x';
// 2
char* pMyBuffer = MyBuffer;
pMyBuffer = pMyBuffer + 5;
*pMyBuffer = 'x';
Regards,
Alvaro
Hey! It compiles! Ship it.
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Thank you! You guys are a great help.
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How can I use the Setup API functions with a INF_STYLE_OLDNT inf file to cause the PnP Manager to kick in? If I need to use a INF_STYLE_WIN4 inf file, what are the key Setup API functions?
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