C / C++ / MFC Discussion Boards

Re: EnableMenuItem() does not make menu item gray???

will138322-Oct-02 4:35

22-Oct-02 4:35

Ravi Bhavnani wrote:
What you're doing will work for a menu attached to a dialog in a dialog based app. However, if you're using MFC's doc/view framework (SDI/MDI), you need to put the enable/disable logic in the command's UpdateUI handler.

This may be the case, but what if you need the change the menus from a different location other than in the UpdateUI handler? do you basically have to create a boolean to keep track of the state and then check it in the UpdateUI? Is this the only way?

Thanks!

Dan

Re: EnableMenuItem() does not make menu item gray???

Roger Allen22-Oct-02 5:36

Roger Allen

22-Oct-02 5:36

Another method would be to handle the WM_INITMENUPOPUP message and enable/disable the items in that handler.

Roger Allen
Sonork 100.10016

I have a terminal disease. Its called life!

Re: EnableMenuItem() does not make menu item gray???

Ravi Bhavnani22-Oct-02 7:18

Ravi Bhavnani

22-Oct-02 7:18

groover4life wrote:
create a boolean to keep track of the state and then check it in the UpdateUI?

Yes, that follows the standard MVC model and would be the preferred way imho.

/ravi

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

Unable to open HELP from Visual studio environment

ssirisha22-Oct-02 3:54

ssirisha

22-Oct-02 3:54

Hi
I am unable to open HELP from my visual studio environment. As soon as I click on any of the menuitems (contents, index etc) under HELP, the cpu shoots to 100% and it just sits like that.. I have also noticed that its allocating more and more memory, but the help window does not open at all.

MSDN was properly installed and it was working just fine before. I don't recall to have changed any of my settings.

I have already tried uninstalling/re-installing MSDN couple of times but no luck.

Any clues. Thanks

Re: Unable to open HELP from Visual studio environment

l a u r e n22-Oct-02 7:31

l a u r e n

22-Oct-02 7:31

have u done a virus scan?

"... and so i said to him ... if it don't dance (or code) and you can't eat it either f**k it or throw it away"
biz stuff about me

Re: Unable to open HELP from Visual studio environment

José Luis Sogorb23-Oct-02 7:16

José Luis Sogorb

23-Oct-02 7:16

Hi, it happens the same to me, and it is not a virus.
Any help?

Cursor Change by an Out-of-Process COM Server

Anonymous22-Oct-02 3:28

Anonymous

22-Oct-02 3:28

Hi,

I'm trying to find a way for an out-of-process COM server (built w/o MFC support) to control the client application's cursor (shape).

Up to this point, I've tried several different variations of LoadCursor/SetCursor; e.g.:

HCURSOR NewCursor = LoadCursor(0, IDC_WAIT);
HCURSOR OldCursor = SetCursor(NewCursor);

I've also tried to retrieve a handle to the client's window and modify the app window class' properties (for the cursor) ; e.g.:

HCURSOR NewCursor = LoadCursor(0, IDC_WAIT);
HWND hwnd = GetActiveWindow(); // returned a NULL value
DWORD OldCursor = SetClassLong(hwnd, GCL_HCURSOR, (LONG)NewCursor);

In all cases, the application builds but does not modify the cursor. I think the primary problem I'm dealing w/ here is the fact that the COM server is out-of-process.

Any suggestions?

Thanks,
Steve

ADO Binding (compile errors)

esapp42022-Oct-02 3:23

esapp420

22-Oct-02 3:23

Hello,

I have a strange problem with binding using the macro BEGIN_ADO_BINDING(CCustomRS).

Here is my code:

//SearchCustRS.h
//
//
#define INITGUID
#import "C:\Program Files\Common Files\System\ADO\msado15.dll" rename_namespace("ADOCG") rename ("EOF", "EndOfFile")
using namespace ADOCG;
#include "icrsint.h"

class CSeachCustRS : public CADORecordBinding
{
BEGIN_ADO_BINDING(CSearchCustRS)
     ADO_FIXED_LENGTH_ENTRY(1, adInteger, m_lCustomerID, lCustomerIDS, FALSE)
     ADO_VARIABLE_LENGTH_ENTRY2(2, adVarChar, m_szCompName, sizeof(m_szCompName), lCompNameS, TRUE)
     ..
     ..
END_ADO_BINDING()
public:
     LONG m_lCustomerID;
     ULONG lCustomerIDS;
     CHAR m_szCompName[101];
     ULONG lCompNameS;
     ..
     ..
};

I am getting these errors:

syntax: missing ';' before identifier 'ADORowClass'
CSearchCustRS::ADORowClass: missing storage-class or type specifiers.

The error line is the BEGIN_ADO_BINDING(CSearchCustRS).

I have used this method successfully before, but now it will not compile...

If anybody has any experience in this area suggestions would be appriciated!

Thanks

I am an IDIOT

esapp42022-Oct-02 5:58

esapp420

22-Oct-02 5:58

just a spelling error! 'seach' instead of 'search'

gotta love that!

Re: I am an IDIOT

Nitron22-Oct-02 7:59

Nitron

22-Oct-02 7:59

Look at the bright side! At least it only took you 2.5 hours to figure it out. Unsure | :~

Nitron
_________________________________________--
message sent on 100% recycled electrons.

sndPlaySound

Jh322-Oct-02 3:11

Jh3

22-Oct-02 3:11

Hi
I write a wave file and want to play it with sndPlaySound, but all I get is a a beep from the PC speaker. PlaySound has the same effect. Other applications play my wave file fine, and I can play other sound files with sndPlaySound function. What is wrong?

tx

How to convert a string to XML format

François22-Oct-02 3:01

François

22-Oct-02 3:01

Hello,

I want to put a string in a XML document, but
sometimes the string can have character(s) that
are not compliant with XML, for example
put this string "<test>" doen't work because it's a
tag for XML.

What is the best way to convert a string into an XML
compliant format ?

A VC ++ function ?
A MSXML function ?

Thanks for your answers !!!

Re: How to convert a string to XML format

benjymous22-Oct-02 3:05

benjymous

22-Oct-02 3:05

if you're using CStrings, you can just use the Replace member function

--
Help me! I'm turning into a grapefruit!

Re: How to convert a string to XML format

Daniel Turini22-Oct-02 3:15

Daniel Turini

22-Oct-02 3:15

Use MSXML for building the document. IXMLDOMElement has a "text" property which you can set and it properly handles all special cases.

Q261186 - Computer Randomly Plays Classical Music

Re: How to convert a string to XML format

Stephane Rodriguez.22-Oct-02 3:21

Stephane Rodriguez.

22-Oct-02 3:21

If you use msxml, this will be automatically handled when you write the xml file somewhere (stream, memory, disk). (" are replaced with ", < are replaced with <, and & replaced with & ). Wink | ;)

How low can you go ?
(enculage MS)

VS make files

will138322-Oct-02 2:58

will1383

22-Oct-02 2:58

Hi all,

I have several *.mak files that I have modified to fix various issues in my builds. I need to be able to import these makefile back into the projects from which they came from. I cannot find a way to do this. Is this possible? Or do I have to physically add in the changes to the project file piece by piece? I thought there would be a quick and dirty way to import the makefile back in Visual Studio. Any help is GREATLY appreciated.

Thanks!

Danielson

string

wong190722-Oct-02 2:25

wong1907

22-Oct-02 2:25

Hello,

I want to ask how to store a String in 2-D array foramt?

e.g.
abc[0][0]="A";
abc[0][1]="AA";
abc[0][2]="AAA";
......
....
..
abc[n][n]="AAAAAAAAAAAAAAA";

THX!!!

Smile | :)

;)

Re: string

Nitron22-Oct-02 8:10

Nitron

22-Oct-02 8:10

MFC or no?

Nitron
_________________________________________--
message sent on 100% recycled electrons.

Re: string

valikac22-Oct-02 10:24

valikac

22-Oct-02 10:24

Consider a vector of string objects.

Kuphryn

splash screen not disappearing on win98

ns22-Oct-02 2:19

22-Oct-02 2:19

. MFC MDI project. I have a splashscreen class which instantiates an object in the initInstance in the app class. When this function goes out of scope, the splash screen is supposed to vanish since it was a local object. Does so fine on Win2K. On win98 however, it stays there even after the UI has come up! How dO I get rid of it? Any ideas why this is happening?

Appreciate your help,
ns

Re: splash screen not disappearing on win98

benjymous22-Oct-02 2:57

benjymous

22-Oct-02 2:57

Can't you just put a close member into your splash class, and call it manually, rather than just closing in the splash's destructor and hoping the object gets deleted? (Less neat, I know, but at least that way you know exactly what's going to happen)

--
Help me! I'm turning into a grapefruit!

Re: splash screen not disappearing on win98

ns22-Oct-02 3:36

22-Oct-02 3:36

Okay. This might sound dumb. I didnt write the class.It has two things in it: create and onPaint, plus the constructor and destructor. What would I put in my Close() function? I dont think we can call the destructor right? Again, sorry if its an obvious question.....

Appreciate your help,
ns

Re: splash screen not disappearing on win98

benjymous22-Oct-02 4:02

benjymous

22-Oct-02 4:02

Ahh, so I guess you've currently got something like

MyClass::MyFunction()
{
  CSplashScreen Splash;  // the splashscreen object
  

  ..do your startup processing here..
  

}

The Splash object should automatically get deleted at the end of the function, when it goes out of scope, but for some reason it isn't.

Instead, try changing it to:

MyClass::MyFunction()
{
  CSplashScreen* pSplash;  // the splashscreen object
  pSplash = new CSplashScreen;
  

  ..do your startup processing here..


  delete pSplash;
}

(I.e. you now have full control over the creation and destruction of the splash screen object, which should force it to close when you want it to)

--
Help me! I'm turning into a grapefruit!

Re: splash screen not disappearing on win98

ns22-Oct-02 4:16

22-Oct-02 4:16

Most excellent! I truly thank you for the idea - I was getting bogged d own in what to write in a Close() function. I have to remember this idea for future use too....the power of new and delete

Appreciate your help,
ns

any helpful links for this?

ns22-Oct-02 2:12

22-Oct-02 2:12

I havent yet ever called a C dll from within my MFC program. What is the procedure for this? Where can I find this information? The C dll might be MFC too, or maybe just plain C++.

Appreciate your help,
ns

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