C / C++ / MFC

13-Jun-06 1:00

Nyarlatotep wrote:
The question is why GetTextMetrics hangs. Never happened before !!!

This may due to following.

-You have taken the device context of the printer where lots of jobs may pending

-When you get the device context of printer and textout the text the device context is in use while jobs may pending or your process is not scheduled.

-and you are trying to get/set the information of the device context which may denied as exclusive access to device context Unsure | :~

Hope you got the issue.

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

Re: GetTextMetrics

Arvind Bharti13-Jun-06 0:21

Arvind Bharti

13-Jun-06 0:21

please try the following code:
---------------------------------------

hOldFont = SelectObject(hfont1);<br />
GetTextMetrics(hdc,tm1);<br />
TextOut(hdc, ....);<br />
y += tm1.tmHeight + tm1.tmExternalLeading;<br />
<br />
// Do not forget to clean up.<br />
SelectObject(hdc, hOldFont);<br />
DeleteObject(hfont1);<br />
<br />
hOldFont = SelectObject(hfont2);<br />
GetTextMetrics(hdc,tm2);

---------------------------------------

Re: GetTextMetrics

Nyarlatotep13-Jun-06 0:28

Nyarlatotep

13-Jun-06 0:28

Selecting the old font and destroyng hfont1 works. Smile | :)

But in this way i've to re-create hfont1 each time (i use it in many places along with hfont2).

package

Tran Ngoc Minh12-Jun-06 23:20

Tran Ngoc Minh

12-Jun-06 23:20

Hello,All
I have a application by Win32.I want to package it.
Please help me .
Thanks ...

Ganesh_T12-Jun-06 23:28

Ganesh_T

12-Jun-06 23:28

Use NSIS installer for packaging it..you just have to write a simple script for that.

You can download the nsis installer from here[^]

Cheers
"Peace of mind through Technology"

Justin Tay12-Jun-06 23:30

Justin Tay

12-Jun-06 23:30

Package as in make an installer? The good free ones should be Inno Setup and NSIS.

Laxman Auti12-Jun-06 23:30

12-Jun-06 23:30

Tran Ngoc Minh wrote:
I have a application by Win32.I want to package it.
Please help me .

Use setup and deployment projects wizard of the VS2003

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

How to represent XML hierarchy as classes

Hamid_RT13-Jun-06 2:32

Hamid_RT

13-Jun-06 2:32

Hope I understood your question

one way that you dont need to any software you can use from IExpress.exe in XP from start menu and in window Run enter IExpress.exe now you can see a window Welcome

whitesky

karthik Tamizhmathi12-Jun-06 23:18

karthik Tamizhmathi

12-Jun-06 23:18

Hi all,
My question is here :

To create a console application with the Class Hierarchy for the below XML Structure.

<Employees>
<Employee>
<name>Malar</name>
<designation>SE</designation>
<reportingTo>
<Employee>
<name>Prakash</name>
<designation>PL</designation>
</Employee>
</reportingTo>
</Employee>
</Employees>

//******************
I have to write a C++ program to add, modify, delete type application.
This application should append, delete, or modify the XML file.

I think each tag should be represented as seperate class since we have append the XML as tags

Advance thanks for the one who will help to solve the problem,
Regards,
Karthik M

Karthik M

Re: How to represent XML hierarchy as classes

Cedric Moonen12-Jun-06 23:20

Cedric Moonen

12-Jun-06 23:20

karthikoncodeproject wrote:
I think each tag should be represented as seperate class since we have append the XML as tags

This is not a good idea: imagine, you want to add a new tag. Then you have to create another class... Not very practical.

Take a look at tinyXML[^], it's a quite powerfull library.

Cédric Moonen
Software developer

Charting control

Re: How to represent XML hierarchy as classes

Laxman Auti12-Jun-06 23:27

Re: How to represent XML hierarchy as classes

12-Jun-06 23:27

See IXMLDOM* interfaces which provides what you want.

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

karthik Tamizhmathi12-Jun-06 23:46

karthik Tamizhmathi

12-Jun-06 23:46

Thanks for your valid suggestions.
But i have to write a C++ code manually for an assignment.

Kindly design a class for the above mentioned XML hierarchy.

Regards,
Karthik M

Karthik M

What's wrong with this code ? (CString issue)

Tnarol12-Jun-06 22:49

Tnarol

12-Jun-06 22:49

Hi,

Can someone explain why this code crashes (when calling ReleaseBuffer()) ?

<br />
#define PROFILE CString("config.ini");<br />
CString result;<br />
GetPrivateProfileString("MySection","MyString","",result.GetBuffer(),512,PROFILE);<br />
result.ReleaseBuffer();<br />

And how can I avoid this ?

Viorel.12-Jun-06 22:53

Viorel.

12-Jun-06 22:53

I think you should specify the size of the allocated buffer:

GetPrivateProfileString("MySection", "MyString", "", result.GetBuffer(512), 512, PROFILE);

kk.tvm12-Jun-06 22:54

kk.tvm

12-Jun-06 22:54

Hi
Please remove ';' in define line

KK

Justin Tay12-Jun-06 22:54

Justin Tay

12-Jun-06 22:54

My guess is the crash is due to writing past the allocated buffer memory that the CString has. Debug builds have some checks to see if you make this mistake. Get the CString to return a buffer that has a certain minimum size.

<br />
#define PROFILE CString("config.ini");<br />
CString result;<br />
GetPrivateProfileString("MySection","MyString","",result.GetBuffer(512),512,PROFILE);<br />
result.ReleaseBuffer();<br />

Laxman Auti12-Jun-06 22:55

12-Jun-06 22:55

Tnarol wrote:

GetPrivateProfileString("MySection","MyString","",result.GetBuffer(),512,PROFILE);

Result of the string where you get the data from ini file, it should be LPTSTR buffer, specify the size of that buffer instead of 512.

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

welkass12-Jun-06 22:56

welkass

12-Jun-06 22:56

Try this:
#define PROFILE "config.ini";
CString result(_T(" "),512);
GetPrivateProfileString("MySection","MyString","",result.GetBuffer(),512,PROFILE);
result.ReleaseBuffer();

May be you are trying to release some memory not allocated.

_AnsHUMAN_ 12-Jun-06 22:56

_AnsHUMAN_

12-Jun-06 22:56

For GetBuffer method :
Call this method to return the buffer contents of the CSimpleStringT object.

You are having this string empty.

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Hamid_RT12-Jun-06 23:07

Hamid_RT

12-Jun-06 23:07

See a little class to Read Ini File[^] maybe it is some helpful to you

whitesky

Win32 API - Tab Control Not Working

David Crow13-Jun-06 4:31

David Crow

13-Jun-06 4:31

You have two compiler errors. The first is a missing argument to GetBuffer(). The second is an erroneous semicolon at the end of PROFILE.

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

capricious_00112-Jun-06 22:35

capricious_001

12-Jun-06 22:35

Hi guys,

I was having a bit of trouble with certain tabs not displaying their appropriate dialog controls.

The options Dialog appears and shows it has 2 tabs. However when the 2nd tab is clicked, it becomes "on top" or becomes focused, but the dialog control associated with it does not appear below the tab. Basically if I click any tab, it shows only the dialog control associated with the general tab (1st tab) and not the dialog controls associated with the tab that was chosen by the user. Below is the code for your perusal:

<br />
BOOL CALLBACK OptionsDialogProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)<br />
{<br />
HWND tab1_hwnd = NULL;<br />
HWND tab2_hwnd = NULL;<br />
HWND CurrentTabHwnd = NULL;<br />
int CurrentTabIndex;<br />
HWND hwndTab = NULL;<br />
<br />
switch(msg)<br />
{<br />
case WM_INITDIALOG:<br />
{<br />
<br />
LPSTR tab1_title = "General";<br />
LPSTR tab2_title = "Advanced";<br />
<br />
INITCOMMONCONTROLSEX tabctl;<br />
<br />
tabctl.dwSize = sizeof(tabctl);<br />
tabctl.dwICC = ICC_TAB_CLASSES;<br />
<br />
InitCommonControlsEx(&tabctl);<br />
<br />
hwndTab = GetDlgItem(hwnd,IDC_TAB1);<br />
<br />
TCITEM ItemStruct;<br />
<br />
ItemStruct.mask = TCIF_TEXT;<br />
ItemStruct.pszText = tab1_title;<br />
ItemStruct.cchTextMax = sizeof(tab1_title);<br />
ItemStruct.iImage = 0;<br />
ItemStruct.lParam = 0;<br />
<br />
SendMessage(hwndTab, TCM_INSERTITEM, 0, (LPARAM)&ItemStruct);<br />
<br />
ItemStruct.pszText = tab2_title;<br />
ItemStruct.cchTextMax = sizeof(tab2_title);<br />
<br />
SendMessage(hwndTab, TCM_INSERTITEM, 1, (LPARAM)&ItemStruct);<br />
<br />
tab1_hwnd = CreateDialogParam(GetModuleHandle(NULL), MAKEINTRESOURCE(IDD_OPTIONS_GENERAL), hwndTab, General_OptionsDialogProc, 0);<br />
tab2_hwnd = CreateDialogParam(GetModuleHandle(NULL), MAKEINTRESOURCE(IDD_OPTIONS_ADVANCED), hwndTab, Advanced_OptionsDialogProc, 0);<br />
<br />
CurrentTabIndex = 0;<br />
CurrentTabHwnd = tab1_hwnd;<br />
<br />
ShowWindow(tab1_hwnd,SW_SHOWDEFAULT);<br />
<br />
<br />
}<br />
break;<br />
<br />
case WM_NOTIFY:<br />
{<br />
<br />
LPNMHDR lpnmhdr = (LPNMHDR) lParam;<br />
<br />
switch(lpnmhdr->code){<br />
case TCN_SELCHANGING:<br />
{<br />
ShowWindow(CurrentTabHwnd, SW_HIDE);<br />
SendMessage(hwndTab, TCM_GETCURSEL, 0, 0);<br />
<br />
switch(TabCtrl_GetCurSel(hwndTab)){<br />
case 0:<br />
ShowWindow(tab1_hwnd,SW_SHOWDEFAULT);<br />
CurrentTabHwnd = tab1_hwnd;<br />
CurrentTabIndex = 0;<br />
break;<br />
case 1:<br />
ShowWindow(tab2_hwnd,SW_SHOWDEFAULT);<br />
CurrentTabHwnd = tab1_hwnd;<br />
CurrentTabIndex = 1;<br />
break;<br />
}<br />
}<br />
break;<br />
default:<br />
return FALSE;<br />
}<br />
<br />
}<br />
break;<br />
case WM_COMMAND:<br />
{<br />
<br />
switch(LOWORD(wParam)){<br />
<br />
case IDOK:<br />
EndDialog(hwnd,0);<br />
break;<br />
case IDCANCEL:<br />
EndDialog(hwnd,0);<br />
break;<br />
}<br />
<br />
}<br />
break;<br />
case WM_CLOSE:<br />
EndDialog(hwnd, 0);<br />
break;<br />
<br />
default:<br />
return FALSE;<br />
}<br />
return 0;<br />
}<br />
<br />

Everything works correctly up until WM_NOTIFY case and even more specifically the "case TCN_SELCHANGING" code block and even more so there are issues associated with the Message TCN_SELCHANGING.

I want to know how do I find out through the message system which tab index is selected? If I can find out which tab index is selected then I can easily write code that will show the appropriate dialog window under the selected tab.

Thanks for your help,

Robbie

Re: Win32 API - Tab Control Not Working

Laxman Auti12-Jun-06 22:43