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An interface to an application is being written based on supplied examples that compile and execute. When the following code is used, a complier error results. The only difference is that in lieu of returning from a function, an error message is diplayed in a window followed by a goto to CoUninitialize().
HRESULT Result=NOERROR;<br />
Result = ::CoInitialize (NULL);<br />
if ( FAILED (Result) ) {<br />
DisplayStatus("Error: Failed to CoInitialize COM inteface.");<br />
goto wrap_up;<br />
}<br />
<br />
CLSID AppClsid;<br />
Result = ::CLSIDFromProgID (L"Inventor.Application", &AppClsid);<br />
if ( FAILED (Result) ) {<br />
DisplayStatus("Error: Failed to obtain CLSID. Check registration.");<br />
goto wrap_up;<br />
}<br />
<br />
IUnknown *pAppUnk = NULL;
wrap_up:
::CoUninitialize();
error C2362: initialization of 'pAppUnk' is skipped by 'goto wrap_up'
C:\Documents and Settings\Jon\My Documents\MSCSource\IV_Revision\Tab2.cpp(146) : see declaration of 'pAppUnk'
Any clues on why this error is being generated? Thanks in advance.
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You could move this line above the "goto"s
IUnknown *pAppUnk = NULL;
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I would like to add embedded codes to learn the status of memory consumption by my program. What function or APIs are avaiable for this.
I am working on a MFC project (Windows 2000 Pro. Visual C++ 6.0 SP6).
Someone suggested me to use GetProcessMemoryInfo().
I put
#include "psapi.h" in the *.cpp file. However, I got the following error
D:\练习\Test1\Test1View.cpp(9) : fatal error C1083: Cannot open include file: 'psapi.h': No such file or directory
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#include windows.h
#include stdio.h
#include "psapi.h"
void PrintMemoryInfo( DWORD processID )
{
HANDLE hProcess;
PROCESS_MEMORY_COUNTERS pmc;
printf( "\nProcess ID: %u\n", processID );
hProcess = OpenProcess( PROCESS_QUERY_INFORMATION |
PROCESS_VM_READ,
FALSE, processID );
if (NULL == hProcess)
return;
if ( GetProcessMemoryInfo( hProcess, &pmc, sizeof(pmc)) )
{
printf( "\tPageFaultCount: 0x%08X\n", pmc.PageFaultCount );
printf( "\tPeakWorkingSetSize: 0x%08X\n",
pmc.PeakWorkingSetSize );
printf( "\tWorkingSetSize: 0x%08X\n", pmc.WorkingSetSize );
printf( "\tQuotaPeakPagedPoolUsage: 0x%08X\n",
pmc.QuotaPeakPagedPoolUsage );
printf( "\tQuotaPagedPoolUsage: 0x%08X\n",
pmc.QuotaPagedPoolUsage );
printf( "\tQuotaPeakNonPagedPoolUsage: 0x%08X\n",
pmc.QuotaPeakNonPagedPoolUsage );
printf( "\tQuotaNonPagedPoolUsage: 0x%08X\n",
pmc.QuotaNonPagedPoolUsage );
printf( "\tPagefileUsage: 0x%08X\n", pmc.PagefileUsage );
printf( "\tPeakPagefileUsage: 0x%08X\n",
pmc.PeakPagefileUsage );
}
CloseHandle( hProcess );
}
void main( )
{
DWORD aProcesses[1024], cbNeeded, cProcesses;
unsigned int i;
if ( !EnumProcesses( aProcesses, sizeof(aProcesses), &cbNeeded ) )
return;
cProcesses = cbNeeded / sizeof(DWORD);
for ( i = 0; i < cProcesses; i++ )
PrintMemoryInfo( aProcesses[i] );
}
Hope it helps....
Regards
The only programmers that are better than C programmers are those who code in 1's and 0's..... 
Programm3r
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« Programm3r » wrote: Hope it helps....
I'm curious how a code snippet is supposed to help.  The problem is that the preprocessor is unable to find the psapi.h file.
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"Judge not by the eye but by the heart." - Native American Proverb
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I don't know David ... I just thought the guy tried to complie and saw that the header file was missing ... Why not give a sample so long?? But I could have said something like ... "google the header file" or something like that, but I decided to give a code snippet ...
O Yes and I quote "... I would like to add embedded codes to learn the status of memory consumption by my program. What function or APIs are avaiable for this...."
The only programmers that are better than C programmers are those who code in 1's and 0's.....
Programm3r
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cy163@hotmail.com wrote: I put
#include "psapi.h" in the *.cpp file.
Unrelated, but your compiles will be somewhat faster if you put it in stdafx.h instead.
cy163@hotmail.com wrote: Cannot open include file: 'psapi.h': No such file or directory
Have you verified that the file exists on your machine, in the Platform SDK\Include folder?
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"Judge not by the eye but by the heart." - Native American Proverb
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Hi all,
How can one test for a bad pointer (0xcccccccc)
I have this pointer array, but not all of the element contain data.
<br />
char *SendFiles[10];<br />
I have tried the following, without success...
<br />
if (SendFiles[y] == NULL)<br />
{<br />
...<br />
Thanx in advance
The only programmers that are better than C programmers are those who code in 1's and 0's.....
Programm3r
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Always always always (and many more  ) initialize your variables and pointers in your constructor (or at the start of your program). In your case, loop through the array and set all the pointers to NULL:
for (int i=0;i<10;i++)<br />
{<br />
SendFiles[i] = NULL;<br />
}
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Many, Many Thanx Cédric, never knew that .. kinda
The only programmers that are better than C programmers are those who code in 1's and 0's.....
Programm3r
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Cedric,
After doing what you said (and it works of course).
The very last element has these characters "ÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌ".
I assume it is garbage or something ... how can I test for this...
Just to let you know I'm retrieveing data from a file, and putting it into the char array.
If I press enter on the very last entry in the text file, the last element in the array is: ÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌ
And if I don't press enter I get someting like this:
dataline1ÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌ
Thanx in advance ... again
The only programmers that are better than C programmers are those who code in 1's and 0's.....
Programm3r
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Check your code that you add a '\0' at the last character of each string if it's not there.
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IsBadWritePtr and IsBadReadPtr can tell you if your process can legally use that pointer, but they won't tell you if the pointer is pointing to the place it should be pointing - it could be pointing anywhere in your process' address space and still be valid for read/write.
Cedric is right - you should always initialize pointers to NULL, and use that as your good/bad test.
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Thanx Chris ... I appreciate the help ... O yes ... Happy B-Day CodeProject
The only programmers that are better than C programmers are those who code in 1's and 0's.....
Programm3r
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Be careful with IsBadWritePtr(...), there are scenarios where relying on it can cause reduced stability:
http://blogs.msdn.com/oldnewthing/archive/2006/09/27/773741.aspx[^]
Which is why I stopped using when I learned about Guard Pages when researching driver development.
Peace!
-=- James
If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
DeleteFXPFiles & CheckFavorites (Please rate this post!)
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Hi,
I have created dialog box in SDK(c++) and there is one button "B1" with style owner draw and other "B2" with default style.
When I press enter key then "B2" gets pressed but when "B1" is highlighted it doesn't respond.
I tried many styles of button and also tried subclassing but I am unbale to handle enter key event.
Is any one knows how to solve it?
Manish
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You have three buttons on your dialog when you press one key you dont get any action,right?
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No I have two buttons:
Button "B1" with owner draw style and button "B2" with default style.
On mouse click both get action.
On space bar when highlighted both get actions.
But when I press enter key when highlighted "B2" gets action but "B1" when highlighted doesn't respond to it.
Any sugestions?
Manish
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Do you set Default Button to true (On property window) for B2?
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In property page:
B2 having style: visible
B1 having style : visible and owner draw.
Please suggest any solution so that when B1 is highlighted,on pressing enter ket it should get action.
Manish
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Not visible I said Default button on proeprty window of each button
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I haven't set any default button on my dialog.
All other styles are set to false and only those wnich are mentioned are set.
With these styles I want to handle enter key event for "B1".
How will it be done?
Manish
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