C / C++ / MFC

23-Nov-07 0:09

Discard your endless-name-function and simply do:

...
CString strLoad;
strLoad.LoadString(nResString);
curTreeItem.item.pszText =(LPTSTR)(LPCTSTR) strLoad;
...

You can safely do that since you're inserting an item, i.e. you know that your buffer will only read.

Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Priya_Sundar23-Nov-07 0:39

Priya_Sundar

23-Nov-07 0:39

I need to apply this for some 50 strings.. so it will be bulky code if i write these statements for every treectrl item. So i need it as a function which will be just a single line of code!

Thankyou for your suggestion!

Priya Sundar

CPallini23-Nov-07 0:52

23-Nov-07 0:52

Priya_Sundar wrote:
I need to apply this for some 50 strings

Good to know. In such a case you may prefer to allocate a single buffer instead of doing all that allocation/deallocation stuff.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Priya_Sundar23-Nov-07 1:03

Priya_Sundar

23-Nov-07 1:03

Could you help me more with respect to the code i have posted? i.e how you want me to allocate single buffer??

Priya Sundar

CPallini23-Nov-07 2:34

23-Nov-07 2:34

At the very beginnning of the process you may allocate a buffer (wide enaough to contain the biggest string you're dealing with), then use it for the retrieval of every string, maybe using the raw WIN32 API

int LoadString( HINSTANCE hInstance, UINT uID, LPTSTR lpBuffer, int nBufferMax);

finally you deallocate the buffer when the last string has been retrieved.

You can also rely on the stack for such purpose:

{
  const int SIZE=1000; // whatever number you need
  TCHAR buffer[SIZE];

  // load string 1
  LoadString( hInstance, uID1, buffer, SIZE);
  // insert item 1
  ...  
 
  // load string 2
  LoadString( hInstance, uID2, buffer, SIZE);
  // insert item 2
  ...
  // load string N
  LoadString( hInstance, uIDN, buffer, SIZE);
  // insert item N
  ...
}

Note: I omitted (leaving it to the reader) the error checking code.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Re: VC++ 6 debugging problem

Priya_Sundar25-Nov-07 22:29

Priya_Sundar

25-Nov-07 22:29

Hi,

Thank you very much.

I am able to get the strings displayed properly in the RELEASE VERSION. But in debug version some special characters are getting displayed as some letters as the part of the required string to be displayed!

Do you have any suggestions so as to explain why it is happening like that??

Also at the initial stage of my program when the string resource has not been yet initialized by the program, there are some global variables where i am assinging some strings.

Do you have any idea regarding how to load string values for such variables from the string table which at that point have not been initialized(eg. registry var).

Appreciate your help! Thankyou once again!!

Priya Sundar

VC++ 6 debugging problem

shine joseph22-Nov-07 22:42

shine joseph

22-Nov-07 22:42

hi,

i am using VC++ 6 editor and i am handling a project that was done by another team of developers and i am having a problem in debugging the static library in the project workspace. when i am trying to put a breakpoint in the static library source file the compilor will disable the breakpoint and move the cursour to the winmain. The following message box window is comming while i try on F5.

---------------------------
Microsoft Visual C++
---------------------------
One or more breakpoints cannot be set and have been disabled. Execution will stop at the beginning of the program.
---------------------------
OK
---------------------------

My work space contained of two exe projects and 3 static librararies and a Dll project all the exe and dll projects allow me to put the break point in the source editor and allow me to debug. But the static library project editor is not allowing to do the debug. What is the Problem. Is i am missing anything. Need your help urgently.

Thanks
Shine joseph

KarstenK22-Nov-07 23:23

KarstenK

22-Nov-07 23:23

The debug information cant proceeded: most common case is that is a release build. D'Oh! | :doh:

Greetings from Germany

Re: VC++ 6 debugging problem

shine joseph27-Nov-07 1:07

shine joseph

27-Nov-07 1:07

No it is in the Debug Mode. Here is the confiiguration

/nologo /MTd /w /W0 /Gm /GX /Zi /Od /I ".." /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /FR"Debug/" /Fp"Debug/Sockets.pch" /Yu"stdafx.h" /Fo"Debug/" /Fd"Debug/" /FD /GZ /Zm200 /c

and

WIN32,_DEBUG,_WINDOWS,_MBCS

how to print the value from registry

dadacncn22-Nov-07 22:40

dadacncn

22-Nov-07 22:40

hello,

I set a value in registry. I checked the registry, the value was really set. And then I read it and try to print it. But the output is aways zero.
my code is:

char regValue[20];
unsigned long dataType;

RegOpenKey(HKEY_LOCAL_MACHINE,keyStr,&hkey);
dwRegValue = 100000;
RegSetValueEx(hkey,L"V1",0, REG_DWORD, (LPBYTE)&dwRegValue, sizeof(DWORD));
RegCloseKey(hkey);

RegOpenKey(HKEY_LOCAL_MACHINE,keyStr,&hkey);
RegQueryValueEx(hkey,L"V1",0, &dataType,(LPBYTE)regValue,&nSize);
RegCloseKey(hkey);

printf("\nregvalue: %d", atol(regValue)); //the output is: regvalue: 0

I don't know what's wrong with my code. could someone help me to solve the problem?
thanks in advance!

CPallini22-Nov-07 22:57

22-Nov-07 22:57

dadacncn wrote:
char regValue[20];

Since you're retrieving a DWORD value, change the above, for instance into:

DWORD dwRegValueBack;

then you have also to change

dadacncn wrote:
RegQueryValueEx(hkey,L"V1",0, &dataType,(LPBYTE)regValue,&nSize);

into:

RegQueryValueEx(hkey,L"V1",0, &dataType,(LPBYTE)&dwRegValueBack,&nSize);

and finally

dadacncn wrote:
printf("\nregvalue: %d", atol(regValue)); //the output is: regvalue: 0

into:

printf("\nregvalue: %d", dwRegValueBack);

Hope that helps
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

dadacncn23-Nov-07 1:16

dadacncn

23-Nov-07 1:16

thank you very much! it works!

You are welcome

CPallini23-Nov-07 2:30

23-Nov-07 2:30

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

ThatsAlok23-Nov-07 18:58

ThatsAlok

23-Nov-07 18:58

dadacncn wrote:
thank you very much! it works!

Just a comment, please use CRegKey class, which is optimized for this type of stuff!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
Support CRY- Child Relief and You

OLE And Powerpoint Using Non MFC

Hamid_RT23-Nov-07 19:49

Hamid_RT

23-Nov-07 19:49

See A Registry Class [^].

Soumyadipta22-Nov-07 22:33

Soumyadipta

22-Nov-07 22:33

I have created a project using visual studio 2005 ,the details are given below.

I want to open power point slide and want to navigate this slides. Cry | :((

Here is the details
------------------------------

I am using Visual Studio 2005 (8.0)

File ->New -> Project
Visual C++ Project ->Win32 -> Win32 Project
Name=Oletest ,Saved to Desktop
Application Settings -> Windows Application -> Finish

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

// Oletest.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include "Oletest.h"
#define MAX_LOADSTRING 100

// Global Variables:
HINSTANCE hInst; // current instance
TCHAR szTitle[MAX_LOADSTRING]; // The title bar text
TCHAR szWindowClass[MAX_LOADSTRING]; // the main window class name

// Forward declarations of functions included in this code module:
ATOM MyRegisterClass(HINSTANCE hInstance);
BOOL InitInstance(HINSTANCE, int);
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK About(HWND, UINT, WPARAM, LPARAM);

int APIENTRY _tWinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
// TODO: Place code here.
MSG msg;
HACCEL hAccelTable;

// Initialize global strings
LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
LoadString(hInstance, IDC_OLETEST, szWindowClass, MAX_LOADSTRING);
MyRegisterClass(hInstance);

// Perform application initialization:
if (!InitInstance (hInstance, nCmdShow))
{
return FALSE;
}

hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_OLETEST);

// Main message loop:
while (GetMessage(&msg, NULL, 0, 0))
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}

return (int) msg.wParam;
}

//
// FUNCTION: MyRegisterClass()
//
// PURPOSE: Registers the window class.
//
// COMMENTS:
//
// This function and its usage are only necessary if you want this code
// to be compatible with Win32 systems prior to the 'RegisterClassEx'
// function that was added to Windows 95. It is important to call this function
// so that the application will get 'well formed' small icons associated
// with it.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
WNDCLASSEX wcex;

wcex.cbSize = sizeof(WNDCLASSEX);

wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = (WNDPROC)WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, (LPCTSTR)IDI_OLETEST);
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = (LPCTSTR)IDC_OLETEST;
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);

return RegisterClassEx(&wcex);
}

//
// FUNCTION: InitInstance(HANDLE, int)
//
// PURPOSE: Saves instance handle and creates main window
//
// COMMENTS:
//
// In this function, we save the instance handle in a global variable and
// create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
HWND hWnd;

hInst = hInstance; // Store instance handle in our global variable

hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);

if (!hWnd)
{
return FALSE;
}

ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);

return TRUE;
}

//
// FUNCTION: WndProc(HWND, unsigned, WORD, LONG)
//
// PURPOSE: Processes messages for the main window.
//
// WM_COMMAND - process the application menu
// WM_PAINT - Paint the main window
// WM_DESTROY - post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId, wmEvent;
PAINTSTRUCT ps;
HDC hdc;

switch (message)
{
case WM_COMMAND:
wmId = LOWORD(wParam);
wmEvent = HIWORD(wParam);
// Parse the menu selections:
switch (wmId)
{
case IDM_ABOUT:
DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About);
break;
case IDM_EXIT:
DestroyWindow(hWnd);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
break;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
// TODO: Add any drawing code here...
EndPaint(hWnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}

// Message handler for about box.
LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_INITDIALOG:
return TRUE;

case WM_COMMAND:
if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
{
EndDialog(hDlg, LOWORD(wParam));
return TRUE;
}
break;
}
return FALSE;
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Re: OLE And Powerpoint Using Non MFC

Jhony george22-Nov-07 23:26

Jhony george

22-Nov-07 23:26

hai,
what ever the code generated using wizard, u copied and pasted it here...Right...?
atleast try to start something ya...and then ask what are problems u had....

Cheers,
Mani

Born to win...!

Re: OLE And Powerpoint Using Non MFC

Soumyadipta26-Nov-07 0:44

Soumyadipta

26-Nov-07 0:44

I don't know how to handle ole

Re: OLE And Powerpoint Using Non MFC

Jhony george26-Nov-07 22:49

Jhony george

26-Nov-07 22:49

hai,
i searched in msdn and i got the following link..
http://support.microsoft.com/kb/237554[^]

hope this will be helpful...
check it out and let me know..

Mani

Born to win...!

How to make VertScrolling a litle bit faster?

josip cagalj22-Nov-07 22:13

josip cagalj

22-Nov-07 22:13

Hi to all.
In my app I deal vith OnMouseWheel and then callOnVScroll with SB_LINEUP/SB_LINEDOWN nSBCode.
This is slow for my needs, how to speed up scroling on my mouse wheeling?
Thanks in advance!

Nelek22-Nov-07 23:49

Nelek

22-Nov-07 23:49

what about X * SB_LINEUP/DOWN ?? Where X is the number of lines that you want to.

Greetings.

--------
M.D.V. Wink | ;)

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
“The First Rule of Program Optimization: Don't do it. The Second Rule of Program Optimization (for experts only!): Don't do it yet.” - Michael A. Jackson

josip cagalj23-Nov-07 0:18

josip cagalj

23-Nov-07 0:18

The SB_LINEUP/DOWN is a parametar which tells whether to scroll up or down, I don't think it has anything to do with speed.
I think I need to set bigger size of scroll line! Do it with SetScrollSizes!
Thanks for replay

Nelek25-Nov-07 21:16

Nelek

25-Nov-07 21:16

The SB_LINEUP/DOWN is exactly what you say. And it comes from the SetScrollSizes, more or less 1/100 of the size.cy.

But what I said... is to get the WM_MOUSEWHEEL and multiply this SB_LINEUP with a coeficient. In order to make more than one line on each movement.

By default:

OnMouseWheel ()
{
  if you are scrolling up
	OnVScroll(SB_LINEUP, 0, NULL);

  else
	OnVScroll(SB_LINEDOWN, 0, NULL);	
}

And what I am telling

OnMouseWheel ()
{
  if you are scrolling up
	OnVScroll( 3 * SB_LINEUP, 0, NULL);

  else
	OnVScroll( 3 * SB_LINEDOWN, 0, NULL);	
}

with this you can use the normal Line size to Up/Down keys (for example) scrolling with accuracy, but do it faster with the mouse wheel. I you change the size of the line (another very good solution) then you will ALWAYS have that scroll velocity.

It is up to you and the needs of your project.

Greetings.

--------
M.D.V. Wink | ;)