Workspace Model - C / C++ / MFC Discussion Boards

ns17-Sep-02 4:36

17-Sep-02 4:36

I was positioning my richedit so that it hugged the bottom edge of my UI at all times using (in OnSize):

m_editright1.MoveWindow(cx - 200, 390 - VScrollDistance, 200, <code>cy-350+ VScrollDistance</code>);

This works well, but the edge hugged is the visible bottom edge, not the region hidden by the scrollbars of my MFC MDI app. (Strange fact: If I scroll down completely and resize it does elongate (beyond?) to the real bottom edge). SO in order to make sure I definitely get the bottom hugging behavior (with or without scrolling and resizing) I made the box superlong:

cy+ VScrollDistance.
The problem is that the vertical scrollbars never develop for the control even if I shrink my UI to be less tall and the text gets obscured. If it truly hugged the bottom at all times, I feel the scrollbars would develop. Any ideas on how I can get it to align itself along the TRUE bottom edge of the UI and not just the visible region right from the start.( I do this positioning in the OnSize event which seems to run after OnInitialUpdate, so any positioning I do in the latter will be overridden)?

Thanks,
ns

Word in C++

insanely42017-Sep-02 4:24

insanely420

17-Sep-02 4:24

Greetings

I have been able to automate Word using my application. I have been able to write three lines of text into it.

Now how should I create tables and format text in it.

Now how should I add tables for formatting.

Ritesh

Below is the code which i am using
=============================================================================
#include <ole2.h>
#include <stdio.h>

int main(int argc, char* argv[])
{

// ******************* Declare Some Variables ********************

// Variables that will be used and re-used in our calls
DISPPARAMS dpNoArgs = {NULL, NULL, 0, 0};
VARIANT vResult;
OLECHAR FAR* szFunction;
BSTR bstrTemp;

// IDispatch pointers for Word's objects
IDispatch* pDispDocs; //Documents collection
IDispatch* pDispSel; //Selection object
IDispatch* pDispActiveDoc; //ActiveDocument object

// DISPID's
DISPID dispid_Docs; //Documents property of Application object
DISPID dispid_DocsAdd; //Add method of Documents collection
//object
DISPID dispid_Sel; //Selection property of Applicaiton object
DISPID dispid_TypeText; //TypeText method of Selection object
DISPID dispid_TypePara; //TypeParagraph method of Selection object
DISPID dispid_ActiveDoc; //ActiveDocument property of Application
//obj
DISPID dispid_SaveAs; //SaveAs method of the Document object
DISPID dispid_Quit; //Quit method of the Application object

// ******************** Start Automation ***********************

//Initialize the COM libraries
::CoInitialize(NULL);

// Create an instance of the Word application and obtain the pointer
// to the application's IDispatch interface.
CLSID clsid;
CLSIDFromProgID(L"Word.Application", &clsid);

IUnknown* pUnk;
HRESULT hr = ::CoCreateInstance( clsid, NULL, CLSCTX_SERVER,
IID_IUnknown, (void**) &pUnk);
IDispatch* pDispApp;
hr = pUnk->QueryInterface(IID_IDispatch, (void**)&pDispApp);

// Get IDispatch* for the Documents collection object
szFunction = OLESTR("Documents");
hr = pDispApp->GetIDsOfNames (IID_NULL, &szFunction, 1,
LOCALE_USER_DEFAULT, &dispid_Docs);
hr = pDispApp->Invoke (dispid_Docs, IID_NULL, LOCALE_USER_DEFAULT,
DISPATCH_PROPERTYGET, &dpNoArgs, &vResult,
NULL, NULL);
pDispDocs = vResult.pdispVal;

// Invoke the Add method on the Documents collection object
// to create a new document in Word
// Note that the Add method can take up to 3 arguments, all of which
// are optional. We are not passing it any so we are using an empty
// DISPPARAMS structure
szFunction = OLESTR("Add");
hr = pDispDocs->GetIDsOfNames(IID_NULL, &szFunction, 1,
LOCALE_USER_DEFAULT, &dispid_DocsAdd);
hr = pDispDocs->Invoke(dispid_DocsAdd, IID_NULL, LOCALE_USER_DEFAULT,
DISPATCH_METHOD, &dpNoArgs, &vResult, NULL,
NULL);

// Get IDispatch* for the Selection object
szFunction = OLESTR("Selection");
hr = pDispApp->GetIDsOfNames (IID_NULL, &szFunction, 1,
LOCALE_USER_DEFAULT, &dispid_Sel);
hr = pDispApp->Invoke (dispid_Sel, IID_NULL, LOCALE_USER_DEFAULT,
DISPATCH_PROPERTYGET, &dpNoArgs, &vResult,
NULL, NULL);
pDispSel = vResult.pdispVal;

// Get the DISPIDs of the TypeText and TypeParagraph methods of the
// Selection object. We'll use these DISPIDs multiple times.
szFunction = OLESTR("TypeText");
hr = pDispSel->GetIDsOfNames(IID_NULL, &szFunction, 1,
LOCALE_USER_DEFAULT, &dispid_TypeText);

szFunction = OLESTR("TypeParagraph");
hr = pDispSel->GetIDsOfNames(IID_NULL, &szFunction, 1,
LOCALE_USER_DEFAULT, &dispid_TypePara);

// The TypeText method has and requires only one argument, a string,
// so set up the DISPPARAMS accordingly
VARIANT vArgsTypeText[1];
DISPPARAMS dpTypeText;

bstrTemp = ::SysAllocString(OLESTR("Metallica"));
vArgsTypeText [0].vt = VT_BSTR;
vArgsTypeText [0].bstrVal = bstrTemp;
dpTypeText.cArgs = 1;
dpTypeText.cNamedArgs = 0;
dpTypeText.rgvarg = vArgsTypeText;

//Invoke the first TypeText and TypeParagraph pair
hr = pDispSel->Invoke (dispid_TypeText, IID_NULL,
LOCALE_USER_DEFAULT, DISPATCH_METHOD,
&dpTypeText, NULL, NULL, NULL);
hr = pDispSel->Invoke (dispid_TypePara, IID_NULL,
LOCALE_USER_DEFAULT, DISPATCH_METHOD,
&dpNoArgs, NULL, NULL, NULL);
::SysFreeString(bstrTemp);

//Invoke the second TypeText and TypeParagraph pair
bstrTemp = ::SysAllocString(OLESTR("Pantera"));
hr = pDispSel->Invoke (dispid_TypeText, IID_NULL,
LOCALE_USER_DEFAULT, DISPATCH_METHOD,
&dpTypeText, NULL, NULL, NULL);
hr = pDispSel->Invoke (dispid_TypePara, IID_NULL,
LOCALE_USER_DEFAULT, DISPATCH_METHOD,
&dpNoArgs, NULL, NULL, NULL);
::SysFreeString(bstrTemp);

//Invoke the third TypeText and TypeParagraph pair
bstrTemp = ::SysAllocString(OLESTR("Godsmack"));
hr = pDispSel->Invoke (dispid_TypeText, IID_NULL,
LOCALE_USER_DEFAULT, DISPATCH_METHOD,
&dpTypeText, NULL, NULL, NULL);
hr = pDispSel->Invoke (dispid_TypePara, IID_NULL,
LOCALE_USER_DEFAULT, DISPATCH_METHOD,
&dpNoArgs, NULL, NULL, NULL);
::SysFreeString(bstrTemp);

// Get IDispatch* for the ActiveDocument object
szFunction = OLESTR("ActiveDocument");
hr = pDispApp->GetIDsOfNames (IID_NULL, &szFunction, 1,
LOCALE_USER_DEFAULT,
&dispid_ActiveDoc);
hr = pDispApp->Invoke (dispid_ActiveDoc, IID_NULL,
LOCALE_USER_DEFAULT, DISPATCH_PROPERTYGET,
&dpNoArgs, &vResult, NULL, NULL);
pDispActiveDoc = vResult.pdispVal;

//Set up the DISPPARAMS for the SaveAs method (11 arguments)
VARIANT vArgsSaveAs[11];
DISPPARAMS dpSaveAs;
dpSaveAs.cArgs = 11;
dpSaveAs.cNamedArgs = 0;
dpSaveAs.rgvarg = vArgsSaveAs;

BSTR bstrEmptyString;
bstrEmptyString = ::SysAllocString(OLESTR(""));

VARIANT vFalse;
vFalse.vt = VT_BOOL;
vFalse.boolVal = FALSE;

bstrTemp = ::SysAllocString(OLESTR("c:\\doc1.doc"));
vArgsSaveAs[10].vt = VT_BSTR;
vArgsSaveAs[10].bstrVal = bstrTemp; //Filename
vArgsSaveAs[9].vt = VT_I4;
vArgsSaveAs[9].lVal = 0; //FileFormat
vArgsSaveAs[8] = vFalse; //LockComments
vArgsSaveAs[7].vt = VT_BSTR;
vArgsSaveAs[7].bstrVal = bstrEmptyString; //Password
vArgsSaveAs[6].vt = VT_BOOL;
vArgsSaveAs[6].boolVal = TRUE; //AddToRecentFiles
vArgsSaveAs[5].vt = VT_BSTR;
vArgsSaveAs[5].bstrVal = bstrEmptyString; //WritePassword
vArgsSaveAs[4] = vFalse; //ReadOnlyRecommended
vArgsSaveAs[3] = vFalse; //EmbedTrueTypeFonts
vArgsSaveAs[2] = vFalse; //SaveNativePictureFormat
vArgsSaveAs[1] = vFalse; //SaveFormsData
vArgsSaveAs[0] = vFalse; //SaveAsOCELetter

//Invoke the SaveAs method
szFunction = OLESTR("SaveAs");
hr = pDispActiveDoc->GetIDsOfNames(IID_NULL, &szFunction, 1,
LOCALE_USER_DEFAULT, &dispid_SaveAs);
hr = pDispActiveDoc->Invoke(dispid_SaveAs, IID_NULL,
LOCALE_USER_DEFAULT, DISPATCH_METHOD,
&dpSaveAs, NULL, NULL, NULL);
::SysFreeString(bstrEmptyString);

//Invoke the Quit method
szFunction = OLESTR("Quit");
hr = pDispApp->GetIDsOfNames(IID_NULL, &szFunction, 1,
LOCALE_USER_DEFAULT, &dispid_Quit);
hr = pDispApp->Invoke (dispid_Quit, IID_NULL, LOCALE_USER_DEFAULT,
DISPATCH_METHOD, &dpNoArgs, NULL, NULL, NULL);

//Clean-up
::SysFreeString(bstrTemp);
pDispActiveDoc->Release();
pDispSel->Release();
pDispDocs->Release();
pDispApp->Release();
pUnk->Release();

::CoUninitialize();

return 0;

}

Re: Word in C++

jmkhael17-Sep-02 6:48

jmkhael

17-Sep-02 6:48

http://www.codeproject.com/com/xoffice.asp

Papa
Murex Co.

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: Word in C++

Bill Wilson17-Sep-02 10:27

Bill Wilson

17-Sep-02 10:27

It looks like you have a working technique to communicate with the Word app. If you are asking about the specific commands to issue to word to create the table and do the formatting, I suggest you let the Word program tell you.

Turn on the macro recorder, perform the operations of interest (create table). Then turn off the recorder and read the macro. It will contain the commands you need to implement. The implementation is just like the stuff you already have coded.

Re: Word in C++

insanely42017-Sep-02 11:00

insanely420

17-Sep-02 11:00

Thanks...I will take a look at it.
Ritesh

WinSock: How do I get the Host Name

Robert Scheckle17-Sep-02 3:44

Robert Scheckle

17-Sep-02 3:44

I have written a Server Client Chat Program using CAsyncSocket. I can get the Remote Hosts I.P. Address using the GetPeerName() Function. I also want the Host Name. To do this I sent a message with the OnConnect() and OnAccept() functions. This only works intermittently and if I disconnect the Client Leaving the Server Listening and then re-connect it does not work at all. What is a better and more reliable way to do this?

Re: WinSock: How do I get the Host Name

Bart Robeyns17-Sep-02 4:43

Bart Robeyns

17-Sep-02 4:43

getnameinfo (WinSock2) returns the hostname for a given IP-address
(gethostbyaddr is simpler in usage, but deprecated)

Workspace Model

Ryan B.17-Sep-02 3:41

Ryan B.

17-Sep-02 3:41

You guys are all familiar with SDI and MDI models of application design (ie Document View Architecture).
Im reading through Prosise (MFC) and came across this:

Alternatives to MDI
A workspace-based model that groups related documents in objects called worspaces and allows documents 
contained in a workspace to be viewed and edited in MDI-like document frames that are children of a top 
level frame window. Visual C++ is one example of an application that uses the workspace 
containment model.

I would be interested to know if anyone has had any success programming an application with a model similar
to this. I am interested in this model mainly because the application I am designing is going to need
"modular" documents. That is, a user is going to be able to add many different types of documents to their
workspace. The workspace object will need to be serialized so that it can be saved and loaded. Its a major
undertaking because there is also a document designer application that the user can use to generate active
documents that can be loaded into the workspace. These documents are just "views" of data objects that will
also have to be serialized along with a workspace.

In other words containment is
workspace
--> multiple data objects (dynamically added)
--> multiple documents (views) (dynamically added)

Has anyone seen or read any articles on this style? Seen any similar open source projects / examples? The
model has also been called the "floating Document Interface". Apparantly CodeWarrior uses it as a
stock programming model (along with MDI / SDI).

Ryan Baillargeon
Software Specialist
Fuel Cell Technologies Inc.

Re: Workspace Model

Ryan B.17-Sep-02 8:54

Ryan B.

17-Sep-02 8:54

Has anyone even read this?

Ryan Baillargeon
Software Specialist
Fuel Cell Technologies Inc.

Re: Workspace Model

Bill Wilson17-Sep-02 11:21

Bill Wilson

17-Sep-02 11:21

Yes.

how to get input from user

ns17-Sep-02 3:04

17-Sep-02 3:04

I have a loop that first gets a value of "PAGE" for the Cedit WindowText. Why doesnt it stop at

GetWindowText() the second time it comes around? I stepped through and after finding "PAGE" the first time, it sails through the lines in red on a second pass, and of course I never got a chance to change the CEdit entry, so the variable is still "PAGE", and an infinite for loop starts....

	bool bExistingEntry;

	do
	{
	// get the new entry here

<code>		m_editAddNewKeyword.SetFocus();

		m_editAddNewKeyword.GetWindowText(m_newKW);</code>

		bExistingEntry = false;

		for (int i = 0 ; i < m_numFields && !bExistingEntry ; i++)
		if (bExistingEntry = (m_AddKWFldsHolder[i] == m_newKW))
		{
			AfxMessageBox("Keyword already exists in database. Add new Keyword or Cancel");


		}
	}
	while (bExistingEntry);

Probably something goofy, but I cant see it....
Thanks,
ns

Re: how to get input from user

Ravi Bhavnani17-Sep-02 3:31

Ravi Bhavnani

17-Sep-02 3:31

It does!! GetWindowText() just gets the text from the edit control into m_newKW. The proper way to validate input is in your dialog's OnOK() handler. Like so:

// Check for invalid keyword
m_editAddNewKeyword.GetWindowText (m_newKW);
for (int i = 0 ; (i < m_numFields); i++) {
    if (m_AddKWFldsHolder[i] == m_newKW) {
       AfxMessageBox("Keyword already exists in database. Add new Keyword or Cancel");
       return;
    }
}

// Everything's OK
CDialog::OnOK();

/ravi

Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com

Re: how to get input from user

ns17-Sep-02 3:38

17-Sep-02 3:38

How do I get my UI to pop up again after the messagebox is dismissed. I cant dismiss the messagebox, it keeps looping because I never get a chance to change the entry. I thought setfocus would do it, but it sails through that line I found...

Re: how to get input from user

Ravi Bhavnani17-Sep-02 3:36

Ravi Bhavnani

17-Sep-02 3:36

See my edited reply. I figured I'd left out the essentials. Smile | :)

/ravi

Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com

Re: how to get input from user

ns17-Sep-02 3:59

17-Sep-02 3:59

thanks a bunch! I didnt think of that!
Smile | :)

BIG OR LITTLE QUESTION?

ZBUILDER17-Sep-02 2:46

ZBUILDER

17-Sep-02 2:46

Here is the message from VC Debug tool ,Can somebody tell me What does it mean? Eek! | :eek:

First-chance exception in DMSClient.exe (KERNEL32.DLL): 0xE06D7363: Microsoft C++ Exception.

SIMPLE IS BEAUTY

Re: BIG OR LITTLE QUESTION?

jhwurmbach17-Sep-02 2:54

jhwurmbach

17-Sep-02 2:54

ZBUILDER wrote:
First-chance exception in DMSClient.exe (KERNEL32.DLL): 0xE06D7363: Microsoft C++ Exception.
What does it mean?

Some code in Kernel32.dll threw an exception.
That is the meaning of that line, and as you choose not to give more information about the context, it is about all one can say about it.

Re: BIG OR LITTLE QUESTION?

Bart Robeyns17-Sep-02 2:57

Bart Robeyns

17-Sep-02 2:57

A first-change exception normally is not a problem: it's the debugger's opportunity to see an exception before it is being handled by an exception handler (or catch-block). If no exception is propagated to your code, that means the writer of the library has foreseen the possibility of this exception and written an appropriate catch-block.
So don't worry about it.

Re: BIG OR LITTLE QUESTION?

ZBUILDER17-Sep-02 3:08

ZBUILDER

17-Sep-02 3:08

Thank you very much.See you later?

SIMPLE IS BEAUTY

can Anybody tell me, how to resolve a trouble debug assert fail?

Anonymous17-Sep-02 2:36

Anonymous

17-Sep-02 2:36

I make a program in window 95, In this environment it runs. Now I have took it to windows Millenium but when i run, it gives me a error "Debug Assertion faif, file: barstat.cpp, line 266". I have made a packet but it does not run.

thank in advances.

Re: can Anybody tell me, how to resolve a trouble debug assert fail?

Bart Robeyns17-Sep-02 2:49

Bart Robeyns

17-Sep-02 2:49

Simply look in barstat.cpp at line 266. The expression within ASSERT() (or similar) at that line evaluates to false running under ME, not in Windows95.
Or even easier: open in MS VC++, place somewhere before barstat.cpp 266, and trace the value of the expression.

Issues with char ** pointers

Jon Hulatt17-Sep-02 2:18

Jon Hulatt

17-Sep-02 2:18

Hi,

This is really annoying me.

char *buffer;
GetData(&buffer);

the plan here is that the GetData function will allocate buffer:-

void GetData( char ** ppBuf)
{
  *ppBuf = new char [length];
  strcpy (*ppBuf,"other data");
}

this appears to work. In fact, back in the original code block:-

printf(buffer);

works correctly.

But when i try and delete the allocated memory in the original code block:-

delete [] buffer;

I get a nasty debug "damage after normal block" type error. Both the main block and the called function exist within the same thread. I've traced through step by step in the debugger, and the address of the block of memory that is allocated by the new keyword is definately the very same block of memory that i am trying to delete.

Why does this occur????

thanks,

Jon

STL is a religeon. Enquiries to Reverend Christian Graus

Re: Issues with char ** pointers

Roger Allen17-Sep-02 2:27

Roger Allen

17-Sep-02 2:27

Whats the value of length and does it include the \0 terminating character?

Roger Allen
Sonork 100.10016

I think I need a new quote, I am on the prowl, so look out for a soft cute furry looking animal, which is really a Hippo in disguise. Its probably me.

Re: Issues with char ** pointers

Jon Hulatt17-Sep-02 2:31

Jon Hulatt

17-Sep-02 2:31

Ahah. Roger, you are a top banana. Whereas I am an idiot.

thankyou for your help!

Project managment under Visual C++

auroch17-Sep-02 2:04

auroch

17-Sep-02 2:04

Does anyone knows where to find documentations (books or tutorials) about the way to work with the visual C++ environment ???

I mean :

- How to work with several sub-projects from different teams ?
- How to integrate and to work with external components such as DLLs without needs to copy files or header in my project ??
- How to use include/lib directories ???
- What is the detailled signification of the Project/Settings parameters ???

what I do not mean :
- How to use visual c++ to create dialog box or progress bars ... (and such things that is described in every VC++ books...)

Thanks,

Vince

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