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Hi.
Im doing a MDI program using CFormView.
When I first run the program, there is a child window in the parent window.
I do not want to open up the program with a child window.
I want to see the child window only when I click File->Open.
How do I do that?
Thanks.
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Place the following code between ParseCommandLine and ProcessShellCommand function calls in your CMyApp::InitInstance method;
if (cmdInfo.m_nShellCommand == CCommandLineInfo::FileNew) {<br />
cmdInfo.m_nShellCommand = CCommandLineInfo::FileNothing;<br />
}
--
=====
Arman
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BOOL CYourApp::InitInstance()
{
//...
CCommandLineInfo cmdInfo;
ParseCommandLine(cmdInfo);
// Added to prevent New Empty Document at startup
if (cmdInfo.m_nShellCommand==CCommandLineInfo::FileNew) {
cmdInfo.m_nShellCommand=CCommandLineInfo::FileNothing;
}
//...
}
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Hey.
Thanks.
But now, if I clicked File->Open, it wont display the child window.
Only if I clicked File->New, will the child window be displayed.
How can I make the child window be displayed when I clicked File->Open?
And also, after I get the child window to be displayed through File->New, when I tried to maximize the window, my GUI is not there anymore. Why is that so?
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ReturnRain wrote: it wont display the child window
The code provided is pretty much an industry standard way in MFC to prevent the initial document in an MDI application. It appears in many articles and books. It should not have any effect on on the operations you are describing so my best guess is that you have code elsewhere that effects the actions you are having difficulty with.
One way to verify this is to create a MFC MDI application using CFormView and dropping that snippet into the appropriate spot and running it without any other code added and you should see that the open and new and child maximize work correctly (at least on VC++ 6.0 and VC++ 2003). I don't use VC++ 2005 so I have no way to verify it using that IDE.
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i have to create a mail page such that the edit window has to support html emails and i must have the options of bulleting,font size ,font type selection features for that window.so please prefer the class that best supports all this features.i can say that the mail page should look just like ms-outlook outbound and inbound pages.
can we use the class CHtmlEditCtrlBase to support this features.
best regards
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Hi all:
Ran into a tiny problem here.
I have declared a class as following:
class CStack {<br />
char* stk[STK_MAX];
int stkIndex;
public:
void push(int i) {
assert(stkIndex < STK_MAX);<br />
*stk[stkIndex++] = i;<br />
} <br />
};
And in 'main' function that follows:
CStack stack;
for (int i = 1; i < argc; i++) {<br />
stack.push(atoi(argv[i]));
assert(stack.count() == i);<br />
}
Just wondering why?
Thank you
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Not sure about what you are trying here. Did you mean something like...
#include "stdafx.h"
#include <stdio.h>
#include <stdlib.h>
const int STK_MAX = 255;
class CStack {
int stk[STK_MAX]; // Use an array to store the stacked data
int stkIndex; // Index of the first free position in the stack
public:
// Constructor
CStack() : stkIndex(0)
{
}
void push(int i) {
stk[stkIndex++]=i;
}
};
int main(int argc, char* argv[])
{
CStack stack;
for (int i=1;i<argc;i++) {
stack.push(atoi(argv[i]));
printf("Argument %d = %d\n",i,atoi(argv[i]));
}
return 0;
}
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Hi:
Thank you for your reply.
1: No what I meant is :
class CStack {
char* stk[STK_MAX];
int stkIndex;
public:
void push (int i) {
*stk[stkIndex++] = i;
}
2: How do you apply indentation?
Thank you
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That was a rhetorical question. There were hints in the code I posted to help you identify where you forgot to initialize stkIndex and the odd assignment of an arbitrary int to a char*.
C_Zealot wrote: How do you apply indentation?
check the box labeled "Ignore HTML tags in this message (good for code snippets)"
Some people will say wrap it in code tags but that makes it hard to copy and paste snippets to test posted code samples as whitespace is not properly preserved.
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Have u initialized the value for "stkIndex"
*stk[stkIndex++] = i; //stkIndex = garbage value
VIBIN
"Fool's run away,where angle's fear to tread"
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Thank you. I will try it out.
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You have an array of pointers to chars called ‘stk’. As far as I can see these pointers are not initialized, so they point at some random location. You push values on the stack like this:
*stk[stkIndex++] = i;
Let’s break this up (underlined part being considered):
*stk[stkIndex++] = i
This statement evaluates to a reference to one of the elements of the ‘stk’ array. Remember these elements are uninitialized pointers.
*stk[stkIndex++] = i
This dereferences the pointer which result in a reference to some RANDOM area of memory which we interpret as a char.
*stk[stkIndex++] = i
This writes the integer truncated to a char (which is another issue with your code) to the some RANDOM area of memory. Crash!
Steve
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Unless you making your own stack for learning purposes you're better off using the standard STL one:
----------------------------
// Console.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <iostream>
#include <stack>
int main(int arvc, char* argv[])
{
using namespace std;
// A stack of 'int's.
stack<int> ints;
// Fill the stack.
for (int i=0; i<10; ++i)
{
ints.push(i);
}
// Now empty the stack and print the results.
while ( !ints.empty() )
{
cout << ints.top() << endl;
ints.pop();
}
return 0;
}
Steve
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Hi all, I use IVMRWindowlessControl::GetNativeVideoSize function to read the width and height of a film. It works well if the film is in wmv format, but when the film is in MPG format, the height is negative (in my case it is -1060) 
A strange thing is that if I change the extension of the file from mpg to wmv. It's OK 
Is there another way to read the width and height of a film?
I'm looking forward to your answers. Thanks
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See this[^] site is helpfuls for you
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I tried IVideoBasic anh it's OK now. Thanks a lot!
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Is there a way for an application with Admin privileges to discover the paths to each user's Local Settings directory?
I am writing an updater for an application that stores data for the user within the user's Local settings tree.
But the application updater needs to be able to manipulate the user data for every user on the system.
I am able to call SHGetFolderPath to get the correct path for the current user, but what about the other users?
--------------------------------
"All that is necessary for the forces of evil to win in the world is for enough good men to do nothing" -- Edmund Burke
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hi !
dear all!
well now all threads are working and running but then it use the same paramters for all the thread. I confuse  here why ??? .
I need somebody's urgent help.
Thanks in advance
"Success lies not in the result , But in the efforts !!!!!"
Amit Mistry - petlad -Gujarat-India
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Could you clarify your question?
What do you mean by saying but then it use the same paramters for all the thread ?
--
=====
Arman
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well I say you heartly.
I have been waiting for your answer. if i will write the post with your name then it is not good but i think what i need is what i get.(i mean answer from arman).
ok,
as you know previously about my code the loop is runing and thread created and i have made the array of threads. right.
But now all thread running but the structure variable(structur pointer actually which send the parameter to the Thread function for further process using the same values for all created thread.
e.g
for(int i=0;i<2;i++)
{
struct argument_list *l;
l=(argument_list *)malloc(sizeof(argument_list));
l->pszInFile=bufferwithpath;
l->pszOutFil=w_Output;
l->_ProtectSet=_ProtectSet;
l->hList=hList;
strcpy(l->Host,HOST);
l->hwndEncrypt=hwndEncrypt;
l->hWndinoutfiledir=hWndinoutfiledir;
l->hwndParent=hDlg;
strcpy(l->InitPackageRequest,sINIT_PACKAGE_RESPONSE.c_str());
l->Port=PORT;
strcpy(l->ScriptFile,COMMUNICATOR_SCRIPT_FILE_PATH);
strcpy(l->UserID,UserID.c_str());
hThread[i]=(HANDLE)_beginthread(&Thread ,0 ,<big><code>l</code></big>);
}
WaitForMultipleObjects(2, hThread, FALSE, INFINITE);
//The value of l remains same for all the created.
means ,The values show correct when the loop is going on.
But when thread call the Thread function below in that case.
hr=pkg.EncodeMediaContent(Lparam->pszInFile,Lparam->pszOutFil,Lparam->hwndParent,Lparam->Host,Lparam->UserID,Lparam->InitPackageRequest,Lparam->ScriptFile,Lparam->Port,Lparam->hList,Lparam->_ProtectSet,Lparam->hWndinoutfiledir,Lparam->hwndEncrypt);
all parameter values shown same for all threads .why??? it must be different according to the thread created with.
suppose
for thread one l could be
Lparam->pszInFile ="a.wmv"
Lparam->pszOutFil="DRMa.wmv"
....
.....
.....
.....
for thread 2
Lparam->pszInFile ="b.wmv"
Lparam->pszOutFil="DRMb.wmv"
....
.....
.....
.....
i need this way for consucative thread calls
========
but it shown every time first thread's values for all other thread.
values l for first thread.
Lparam->pszInFile ="a.wmv"
Lparam->pszOutFil="DRMa.wmv"
....
.....
.....
.....
I think now you might got is it ? 
void Thread(void* pArguments )
{
if( pArguments == NULL )
{
MessageBox( NULL , _T("Problem in thread") , NULL , IDOK ) ;
}
HRESULT hr=NULL;
<big><code>struct argument_list *Lparam= (argument_list *)pArguments ;</code></big> Package pkg;
static int threadID;
threadID++;
{
<big>
<big><code>hr=pkg.EncodeMediaContent(Lparam->pszInFile,Lparam->pszOutFil,Lparam->hwndParent,Lparam->Host,Lparam->UserID,Lparam->InitPackageRequest,Lparam->ScriptFile,Lparam->Port,Lparam->hList,Lparam->_ProtectSet,Lparam->hWndinoutfiledir,Lparam->hwndEncrypt);</code></big> }
if(hr==S_OK)
{
MessageBox(0,L"thread gone finished" ,L"therad",0);
_endthreadex( 0 );
}
threadID--;
}
"Success lies not in the result , But in the efforts !!!!!"
Amit Mistry - petlad -Gujarat-India
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I think now you might got is it ?
Ok, wait a little, I will reply soon.
--
=====
Arman
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Well. Your code has lots of things to recorrect. Though the abnormal behavior you described I could hardly connect to them. Let's start from general issues.
1) Are you using C and not C++?
2) Never use _beginthread! Use _beginthreadex instead. The first one is problematic and may cause hard-to-recognize errors! Your call should be;
<br />
unsigned int tid;
hHandle[j] = (HANDLE ) _beginthreadex(NULL, 0, &Thread, l, 0, &tid);
3) Never use _endthreadex (nor use _endthread). These functions are mainly for urgent termination situations which are not inherent [normal] in a well designed architecture. Instead do 'return 0;'.
4) You should change the declaration form of Thread function; unsigned int should be returned to indicate the exit code. Now it should be;
UINT Thread(void *pArgs)
5) Are you sure your values are different inside the thread creation 'for' loop? Anyway, going on..
6) If your in C++, use new rather than malloc [but I thing you are in C].
7) Strings are erroneous! Remember that in a multithreaded application YOU SHOULD BE VERY VERY CAREFUL WHEN PASSING STRINGS INTO DIFFERENT THREADS!
So your code is wrong. YOU SHOULD CREATE SEPARATE STRING BUFFERS PER THREAD. That is;
for(int i=0;i<2;i++)
{
struct argument_list *l = (argument_list *) malloc(sizeof(argument_list));
...
l->Host = (LPTSTR)malloc(MAX_PATH);
strcpy(l->Host, HOST);
...
8) To have a solid test inside Thread function also pass the j (loop index) to them; I mean add an extra int field to argument_list and observe its value from each thread function. They all should be different.
9) And one thing about Thread again. Never do such things;
//WaitForSingleObject(GetCurrentThread(),5000);
This makes no sense.
Finally, see what you can get from these notes. Take into consideretion each of them. Then I think you will overcome your problem.
You could tell me when you do smth.
--
=====
Arman
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Thank you very much for your nice guideline.![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
and please Look at the structure once.
struct argument_list
{
WCHAR *pszInFile;
WCHAR *pszOutFil;
HWND hwndParent;
char Host[MAX_PATH];
char UserID[MAX_PATH];
char InitPackageRequest[500000];
char ScriptFile[MAX_PATH];
INTERNET_PORT Port;
HWND hList;
TagEditor *_ProtectSet;
HWND hWndinoutfiledir;
HWND hwndEncrypt;
};
"Success lies not in the result , But in the efforts !!!!!"
Amit Mistry - petlad -Gujarat-India
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