C / C++ / MFC Discussion Boards

Re: Cant insert breakpoints

wb29-Jul-04 10:58

29-Jul-04 10:58

as I thought.

just put the

_asm int 3;

in the code, where you want the
debuger to stop. but you MUST start
the programm with a debuger. if not, an exception
is thrown.
the debuger stops at this assembly code.

Re: Cant insert breakpoints

Jaime Stuardo29-Jul-04 10:58

Jaime Stuardo

29-Jul-04 10:58

What kind of DLL is it? I cannot debug inside a DLL when it is a COM server... if it is an extension DLL, I can do it the normal way.

Try the suggestion of using __asm int 3. The causes the processor to break its execution at that point.

Jaime

Re: Cant insert breakpoints

Wheatbread30-Jul-04 4:51

Wheatbread

30-Jul-04 4:51

Using __asm int 3 would be useful if i knew assembler.

This all used to work, but now it doesnt. My project is a DLL and the exe that loads it doesnt ahve a symbol table, but this used to work.

Any other suggestions?

Re: Cant insert breakpoints

Jaime Stuardo30-Jul-04 8:34

Jaime Stuardo

30-Jul-04 8:34

by using __asm int 3 it isn't necessary to know assembler since you will see pure C code if the DLL has been compiled with symbol table.

You told that the EXE that loads the DLL doesn't have a symbol table, so you need to specify it in debug settings of the DLL project.

You always have talked about a DLL, but.. what kind of DLL it is? how have you specified the EXE that loads your DLL?

Jaime

Boot Drive

Anonymous29-Jul-04 9:06

Anonymous

29-Jul-04 9:06

I have installed Win98/WindowsXP/Windows 2003

How can i retrieve boot drive in MFC

Thanking you

Re: Boot Drive

David Crow29-Jul-04 10:28

David Crow

29-Jul-04 10:28

MFC couldn't care less about the "boot drive." What you want can be obtained by reading the SystemDrive environment variable, or the same-named member of the Win32_OperatingSystem WMI class. You could also call GetWindowsDirectory() and examine the first character of the returned path. Do any of those help?

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: Boot Drive

Anonymous30-Jul-04 9:42

Anonymous

30-Jul-04 9:42

GetWindowsDirectory() API return only drive name where windows is installed.

I want to get the information for boot partition.

C:\Windows\ for 98
D:\Windows\ for XP
E:\Windows\ for 2K3

I want to get boot drive (c Smile | :)

in winXP programatically.

Thanking you

Re: Boot Drive

David Crow30-Jul-04 18:02

David Crow

30-Jul-04 18:02

But if you boot to, say, Windows XP, wouldn't GetWindowsDirectory() return d:\windows, thus making d: the boot drive?

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Control class

act_x29-Jul-04 9:04

act_x

29-Jul-04 9:04

I am working on a class that manages 2 CStatics , their creation , destruction and text data . here it is :

<br />
<small>class CTestRow {<br />
public :<br />
	CTestRow(CString title,CWnd *parent,CRect r){<br />
		wndTest = new CStatic;<br />
		wndTest->Create(title,WS_CLIPCHILDREN|WS_CHILD|WS_VISIBLE,r,parent);<br />
		wndTest->SetFont(font);<br />
			<br />
		r.left=r.right+10;<br />
		r.right=r.left+100;<br />
<br />
		wndResult = new CStatic;<br />
		wndResult->Create("Untested",WS_CLIPCHILDREN|WS_CHILD|WS_VISIBLE,r,parent);<br />
		result="Untested";<br />
	};<br />
	~CTestRow(){<br />
		delete wndTest;<br />
		delete wndResult;<br />
	}<br />
	void SetResultText()<br />
	{<br />
           wndResult->SetWindowText(result);<br />
     <br />
	};<br />
<br />
	static void DestroyFont<br />
	CString result;<br />
<br />
private:<br />
	CStatic *wndTest;<br />
	CStatic *wndResult;<br />
	CString titleTest;<br />
	static CFont font;<br />
<br />
	<br />
	</small>};

Now I am going to to creating an array of CTestRow in my application .
I want all the objects created to reference once instance of CFont . i,e i dont want Cfont to be created again and again for every object.thats why i have declared it static .

But there needs to be a point where I initialize it(CFont object) once and destroy it once when i m done with all objects !

Does C++ have the facility to do this ?
or do i need to have a wrapper class to do that ?

Re: Control class

act_x29-Jul-04 9:08

act_x

29-Jul-04 9:08

duh why did i start reading COM ?

use a static int objCount variable and when 0 Create the font
In the destructor check objCount
if 0 then destroy font.

Sorry i m, not thinking today !

copy CString to CTime

xcavin29-Jul-04 7:11

xcavin

29-Jul-04 7:11

CString strTime=CTime::GetCurrentTime().Format("%m/%d/%Y %H:%M:%S")

How to convert or assign this strTime back to another CTime object ?

Re: copy CString to CTime

David Crow29-Jul-04 7:21

David Crow

29-Jul-04 7:21

Use COleDateTime instead, then you'll have access to ParseDateTime(), not to mention a wider range of dates.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: copy CString to CTime

PJ Arends29-Jul-04 7:24

PJ Arends

29-Jul-04 7:24

COleDateTime has a ParseDateTime member function you could use. If you have to use CTime you could transfer the data from COleDateTime to CTime fairly easily.

"You're obviously a superstar." - Christian Graus about me - 12 Feb '03

"Obviously ??? You're definitely a superstar!!!" mYkel - 21 Jun '04

Within you lies the power for good - Use it!

Thread Synchronization!

mostafa_pasha29-Jul-04 6:59

mostafa_pasha

29-Jul-04 6:59

hi everyone,
how can i use mutexes to synchronize
threads of some applications?
thanks if you introduce me refrence about
thread and synchronization. Confused | :confused:

Best Regard.

Re: Thread Synchronization!

Peter Weyzen29-Jul-04 10:37

Peter Weyzen

29-Jul-04 10:37

See this excellent reference: Multithreading Applications in Win32: The Complete Guide to Threads

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br />
Peter Weyzen<br />
Staff Engineer<br />
<A HREF="http://www.santacruznetworks.com">Santa Cruz Networks</A>

Heap Memory Management!

mostafa_pasha29-Jul-04 6:56

mostafa_pasha

29-Jul-04 6:56

Hi everyone,
first:
I use HeapAlloc() to allocate memory on heap.
in vc 6.0 I think HeapAlloc return void*
but in last version of vc i think return LPVOID
and i do not know to use it in array!
for example i declared char* lpBuf and then
lpBuf = HeapAlloc(....);
in .NET i do not know how use it.
second:
how about casting pointer to LPVOID ?

Re: Heap Memory Management!

David Crow29-Jul-04 7:16

David Crow

29-Jul-04 7:16

mostafa_pasha wrote:
in vc 6.0 I think HeapAlloc return void*
but in last version of vc i think return LPVOID

LPVOID is just a typedef for void *.

mostafa_pasha wrote:
and i do not know to use it in array!

Use what in an array?

mostafa_pasha wrote:
for example i declared char* lpBuf and then
lpBuf = HeapAlloc(....);
in .NET i do not know how use it.

How about:

char *lpBuf = (char *) HeapAlloc(...);
lpBuf[0] = 'E';
lpBuf[1] = 'a';
lpBuf[2] = 's';
lpBuf[3] = 'y';

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Capture Output from ShellExecute

otrcomm29-Jul-04 6:49

otrcomm

29-Jul-04 6:49

Hello,

Is it possible to capture the output from either ShellExecute or ShellExecuteEx?

I have to run an external program from within my application, and I want to capture the output from that program and put it into a CString variable.

Does anyone know if this is possible, and if so, how?

Thanks,
Murrah Boswell

Re: Capture Output from ShellExecute

Ravi Bhavnani29-Jul-04 7:03

Ravi Bhavnani

29-Jul-04 7:03

You may want to use CreateProcess() instead. See these articles:

/ravi

My new year's resolution: 2048 x 1536
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Re: Capture Output from ShellExecute

pruthvis4-May-10 0:49

pruthvis

4-May-10 0:49

hey,,,even i want to redirect the output of the shellexecute to a Cstring variable,,,is there no other way,,should i have to use CreateProcess,,Pls help me out,,

Thanks in advance,,

CWnd question

act_x29-Jul-04 6:05

act_x

29-Jul-04 6:05

CWnd *wndow;
wndow=new CWnd();
wndow->Create("","",WS_VISIBLE|WS_CHILD,Rect,this,1234);

I am doing this in a Window (CWnd ) . returns 0 . what am i missing ? Help please

Re: CWnd question

PJ Arends29-Jul-04 7:16

PJ Arends

29-Jul-04 7:16

The class name (first parameter) has to be a valid class name or NULL. It can not be an empty string.

wndow->Create(NULL, ...

"You're obviously a superstar." - Christian Graus about me - 12 Feb '03

"Obviously ??? You're definitely a superstar!!!" mYkel - 21 Jun '04

Within you lies the power for good - Use it!

Specific POST/GET request header

Member 78763029-Jul-04 6:04

Member 787630

29-Jul-04 6:04

Hello everybody!

I would appreciate if anybody helps me with such question:

I trying to write a function that "emulates" page opening. I mean, that you send a specific request(that contains specific header information) and the server (I'm talking about HTTP protocol) thinks that information came from a normal browser.

For e.g. you have registred on some server, and webmaster sends you email with the activation link that you need to press, and I want my function send "specific info" to server as if it was really opened in browser.

The question: What exact information message should contain?

Re: Specific POST/GET request header

Ravi Bhavnani29-Jul-04 6:24

Ravi Bhavnani

29-Jul-04 6:24

This[^] article may help.

/ravi

My new year's resolution: 2048 x 1536
Home | Articles | Freeware | Music
ravib@ravib.com

Re: Specific POST/GET request header

Jeff Bogan29-Jul-04 6:25

Jeff Bogan

29-Jul-04 6:25

Are you trying to create something that creates an insane number of accounts for spamming purposes?

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