Re: Doubt in CreateProcess() and ShellExecute() - C / C++ / MFC Discussion Boards

Re: Application not working in Release mode...

_anil_1-Feb-06 0:53

_anil_

1-Feb-06 0:53

Check for memory leak.

Re: Application not working in Release mode...

benjymous1-Feb-06 1:22

benjymous

1-Feb-06 1:22

Try this:

http://www.codeproject.com/debug/survivereleasever.asp[^]

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Re: Application not working in Release mode...

kakan1-Feb-06 1:22

kakan

1-Feb-06 1:22

Check for uninitialized variables, especially pointers.
In debug mode, they get initialized to zero/NULL (by the debug memory handlers).
In Release, they doesn't get initialized, unless you do it yourself.

Re: Application not working in Release mode...

ddmcr1-Feb-06 1:36

ddmcr

1-Feb-06 1:36

In addition to others I would recommend you to enter in the

Release <br />
<br />

directory of your project, delete all files inside and then Rebuild your

project.

"Success is the ability to go from one failure to another with no loss of enthusiasm." - W.Churchill

Re: Application not working in Release mode...

James Gupta1-Feb-06 2:03

James Gupta

1-Feb-06 2:03

Check that you have used an absolute filepath to find the DLL

Re: Application not working in Release mode...

Danny Pav1-Feb-06 5:20

Danny Pav

1-Feb-06 5:20

Here is my "Debug works, Release crashes" checklist:
-check for uninitialized variables, esp pointers.
-check build settings that only release mode libraries used
-look for ASSERT's with non-const expressions - use VERIFY here instead
-in MFC, look for mismatched message handlers, esp for OCX's.

Doubt in CreateProcess() and ShellExecute()

Sasikumar.SR31-Jan-06 23:52

Sasikumar.SR

31-Jan-06 23:52

Hi all
Please tell me how to temrinate an EXE which was created from the VC++ application using "ShellExecute".

To use TerminateProcess(), we should pass the handle of the process. But i how can i obtain the handle when i use "ShellExecute"?

and also In CreateProcess() function i don't find any parameter for "passing the parameter to the application to be invoked".

Bye

Re: Doubt in CreateProcess() and ShellExecute()

Rage1-Feb-06 0:07

Rage

1-Feb-06 0:07

S.R.Sasi Kumar wrote:
But i how can i obtain the handle when i use "ShellExecute"?

You can't. Use ShellExecuteEx or, much better, CreateProcess to retrieve the handle.

From MSDN:

BOOL CreateProcess(
  LPCTSTR lpApplicationName,
                         // pointer to name of executable module
  LPTSTR lpCommandLine,  // pointer to command line string
  LPSECURITY_ATTRIBUTES lpProcessAttributes,  // process security attributes
  LPSECURITY_ATTRIBUTES lpThreadAttributes,   // thread security attributes
  BOOL bInheritHandles,  // handle inheritance flag
  DWORD dwCreationFlags, // creation flags
  LPVOID lpEnvironment,  // pointer to new environment block
  LPCTSTR lpCurrentDirectory,   // pointer to current directory name
  LPSTARTUPINFO lpStartupInfo,  // pointer to STARTUPINFO
  LPPROCESS_INFORMATION lpProcessInformation  // pointer to PROCESS_INFORMATION
);

So what you are looking for is probably here lpCOmmandLine

~RaGE();

Re: Doubt in CreateProcess() and ShellExecute()

David Crow1-Feb-06 6:37

David Crow

1-Feb-06 6:37

Rage wrote:
So what you are looking for is probably here lpCOmmandLine

I think you mean lpProcessInformation.hProcess.

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

Re: Doubt in CreateProcess() and ShellExecute()

Rage1-Feb-06 9:26

Rage

1-Feb-06 9:26

Actually not, with this I was answering his second question "How to pass parameter to the invoked thing".

I agree I should have stated this more clearly.

This is not the first time you have corrected me these days, I should really pay more attention to my answers Blush | :O

~RaGE();

Re: Doubt in CreateProcess() and ShellExecute()

David Crow1-Feb-06 9:36

David Crow

1-Feb-06 9:36

Rage wrote:
Actually not, with this I was answering his second question "How to pass parameter to the invoked thing".

Fair enough.

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

Re: Doubt in CreateProcess() and ShellExecute()

Owner drawn1-Feb-06 17:16

Owner drawn

1-Feb-06 17:16

What about the handle to the window how can we get it.

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PropertySheet tabs captions

toxcct31-Jan-06 23:13

toxcct

31-Jan-06 23:13

gd' morning everyone (yup, i'm still wakin' up),

i have a problem in my wish to move every GUI Strings of my project[^] into the resource strings table.

i can easily construct the caption on the propertySheet dialog using this->SetTitle() in my propertySheet constructor.

my need comes when i try to initialize each PropertyPage's caption (which end up as a tab) using this->SetWindowText() within CMyPropertyPage::OnInitDialog(), the tabs remains empty...
when i debug, the CString is correctly loading the resource string from the string table, so i think that it is the call to SetWindowText which is not appropriate. moreover, the breakpoint in oninitdialog is reached only when i navigate through the tabs (not at the first diplaying of the prop sheet...
however, i cannot find the messages sent when a propertySheet is initializing its pages...

any one can help please ?

thanks in advance

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20][VCalc 3.0 soon...]

Re: PropertySheet tabs captions

Rage31-Jan-06 23:27

Rage

31-Jan-06 23:27

Hi tox,

you must set the title of the property page before you come into the OnInitDialog(), e.g. on property sheet level, just before adding the page.

That way:

CPage5Dlg page5; // Prop page

page5.m_psp.dwFlags  |= PSP_USETITLE;	
page5.m_psp.pszTitle  = "Environment";

~RaGE();

-- modified at 6:04 Wednesday 1st February, 2006

Re: PropertySheet tabs captions

toxcct31-Jan-06 23:37

toxcct

31-Jan-06 23:37

Rage wrote:
you must set the title of the property page before you come into the OnInitDialog(),

yeah, i was thinking of something like this, but couldn't find out how...

Rage wrote:
That way:

thank you... i'll try that this evening. you'll have feedback about it of tomorrow Wink | ;)

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20][VCalc 3.0 soon...]

Re: PropertySheet tabs captions

PJ Arends1-Feb-06 8:18

PJ Arends

1-Feb-06 8:18

If you want to change the tab's text after the page is created, use CPropertySheet::GetTabControl() and then CTabCtrl::SetItem().

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Re: PropertySheet tabs captions

toxcct1-Feb-06 21:31

toxcct

1-Feb-06 21:31

thanks for the info, but not necesssar... i only want to load the captions from the resource string table and set them...

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20][VCalc 3.0 soon...]

Re: PropertySheet tabs captions

toxcct1-Feb-06 21:37

toxcct

1-Feb-06 21:37

well, guess what...

it does work, but partially Sigh | :sigh:

i explain:
when i do the following, it works :

//CFunctionsPage m_FunctionsPage
this->FunctionsPage.m_psp.dwFlags  |= PSP_USETITLE;
FunctionsPage.m_psp.pszTitle  = "Environment";

but this doesn't Frown | :(

//CFunctionsPage m_FunctionsPage
this->FunctionsPage.m_psp.dwFlags  |= PSP_USETITLE;
CString strCaption;
strCaption.LoadString(IDS_HELP_FUNCTIONS);
FunctionsPage.m_psp.pszTitle  = strCaption;

while debugging, the strCaption variable is correctly filled with the right resource string, but the variable might be destroyed when living the scope.
actually, it works only if i hard code the string to display (which is exactly what i don't want)...

any idea ?

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20][VCalc 3.0 soon...]

Re: PropertySheet tabs captions

Rage1-Feb-06 23:25

Rage

1-Feb-06 23:25

Two ideas :

1. Try with

FunctionsPage.m_psp.pszTitle  = strCaption.operator LPCTSTR();

2. Try with

strcpy(FunctionsPage.m_psp.pszTitle,strCaption.operator LPCTSTR());

Actually, as its name suggests, pszTitle is not a CString, so I presume you are right when saying the variable is destroyed after leaving the scope (In fact, you do a pointer assignment and the pointer is destroyed after leaving the scope).

If I am right, solution 1 will not even compile. So I bet solution 2 is what you are looking for.

~RaGE();

-- modified at 5:25 Thursday 2nd February, 2006

Re: PropertySheet tabs captions

toxcct1-Feb-06 23:29

toxcct

1-Feb-06 23:29

already done both.

let me add one note to your reply code however.
cast operators overloads are designed to be used as C-Style cast.
so instead of calling strCaption.operator LPCTSTR(), simply call (LPCTSTR)strCaption

anyway, this doesn't work either...
solution 1 actually compiles, but the tab caption displays strange characters (significative to our first diagnostic).
solution 2 doesn't compile ; the compiler says that it cannot convert parameter 1 from const char* to char* (and here, i don't understand why... D'Oh! | :doh:

)

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20][VCalc 3.0 soon...]

Dynamic memory allocation of 2-D array

Sarvan AL31-Jan-06 22:43

Sarvan AL

31-Jan-06 22:43

Hi,

I'd like to write a function, which returns an array of strings. But the size of the array is unknown. For example, it has to create a string array with the nos. I enter (say, "1", "2", "4", "9".. , and return back to the caller function when I enter 0. It has to grow dynamically. But I don't want to do it with built-in classes like list, vector and so on.

I'd like to use 'new' operator or 'malloc/realloc' functions.
Pls suggest me a good solution.

Thanks in advance,
Sarvan AL

Re: Dynamic memory allocation of 2-D array

Owner drawn31-Jan-06 22:54

Owner drawn

31-Jan-06 22:54

int twoDArray = new int[rows*cols];

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Re: Dynamic memory allocation of 2-D array

Rage31-Jan-06 23:29

Rage

31-Jan-06 23:29

Ever considered using STLs ?

~RaGE();

Re: Dynamic memory allocation of 2-D array

kakan1-Feb-06 0:04

kakan

1-Feb-06 0:04

Google for the head line of your question: Dynamic memory allocation of 2-D array

I got 199000 hits, several of them uses malloc.

Re: Dynamic memory allocation of 2-D array

RadioOpa1-Feb-06 3:42

RadioOpa

1-Feb-06 3:42

"malloc" should nowadays be replaced with "new" as my Cpp teacher told me recently

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.