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This happens because of the way a tab control works.
The TCM_SETCURSEL message only sets the selected tab index as active. It does not, like stated in the Platform SDK Reference, send TCM_SELCHANGING and TCM_SELCHANGE messages. The general tab control available in Platform SDK (SysTabControl32 window class) handles the changing of the page in the TCM_SELCHANGING and TCM_SELCHANGE message handlers. First is called first, and is responsible for hiding the current page. The latter is sent (and handled) next, and it is responsible for showing the new page.
There are (at least) two solutions to this problem:
1. Override your tab control's TCM_SETCURSEL message handler to send TCM_SELCHANGING and TCM_SELCHANGE messages, which will then swap the page. This is necessary if your tab control has TCM_BUTTONS style set, or you are using a tab control which is not based on the SysTabControl32 class.
2. If your tab control does not have TCM_BUTTONS style set, you can use TCM_SETCURFOCUS message to set the focus to the specified tab. This message will cause TCM_SELCHANGING and TCM_SELCHANGE messages to be sent to the tab control, thus switching the page as well.
If you use MFC, the correct message-map entry is ON_COMMAND (TCM_SETCURSEL, <function>) and the function prototype is afx_msg LRESULT <function>(WPARAM wParam, LPARAM lParam). Same rules apply for TCM_SELCHANGING and TCM_SELCHANGE, if you need to override them.
However, if you use a CCtrlView class as the base, the message map entry is ON_NOTIFY_REFLECT. See MFC Reference for more details about this.
Alternatively, instead of sending messages, you can use the TabCtrl_SetCurFocus macro. In Platform SDK, this macro requires a HWND of the tab and the index to be selected. If you use MFC's CTabCtrl class or it's derivates, you can use the SetCurFocus member method to achieve the same results.
-Antti Keskinen
----------------------------------------------
The definition of impossible is strictly dependant
on what we think is possible.
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how to replace the following function with constructor
void Cat::setAge(long age,char name[])
{
strcpy(cName, name);
cAge = age;
}
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Something like this?
Cat::Cat(long age, const char const* name)
{
strcpy(cName, name);
cAge = age;
}
Cat aCat(3, "Fred");
Roger Allen
Sonork 100.10016
Death come early, death come late,
It takes us all, there is no reason.
For every purpose under heaven,
To each a turn, to each a season.
A time to weep and a time to sigh,
A time to laugh and a time to cry,
A time to be born and a time to die.
Dust to dust and ashes to ashes,
And so I end my song.
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Replace setAge by Cat and remove the void 
Papa
while (TRUE)
Papa.WillLove ( Bebe ) ;
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Hi!
I have a problem and I cannot find the solution for it. I am using the win32 api to create a database application and I am sending sql statements to retrieve and put data.
In my access database I have a field called TEST, it is a text field. The thing I want to do is to add some text to it everytime the user opens my program. For that I am using:
<br />
_bstr_t sqlquery;<br />
LPTSTR tester = "";<br />
LPTSTR no = "12";<br />
char formula[MAX_PATH];<br />
sprintf(formula, "\"UPDATE TABLO SET TEST = '%s' WHERE (NO = '%s')\"", tester, no); <br />
sqlquery = (_bstr_t)formula;<br />
try<br />
{<br />
pSet = pDb->Execute(sqlquery, &vRecsAffected, adOptionUnspecified);<br />
}<br />
catch( _com_error &e )<br />
{<br />
bstr_t bstrSource(e.Source());<br />
_bstr_t bs = _bstr_t(" Error: ") + _bstr_t(e.Error()) + _bstr_t(" Mesaj: ") + _bstr_t(e.ErrorMessage()) + _bstr_t("\nHata Tanımı:\n") <br />
+ _bstr_t(e.Description()); <br />
MessageBox(0,bs,bstrSource, MB_OK);<br />
}<br />
<br />
And when my program runs it gives me an error like:
"Error: -2147217900 Message: IDispatch error #3092"
I am really confused   Please help me!
Thank you very much for your future answers!
(Note the code up there works if there is less than 8 or 9 characters... )
Well... I am a beginner ...
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What type of object is pDb? At first I thought it was a CDatabase object, but that class has no Execute() method.
Have you tried Googling for the error?
http://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=idispatch+3092&btnG=Google+Search
Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?
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I googled it but I couldn't find any useful informations...
Well... I am a beginner ...
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Don't put the update statement within quotes (in other words,
"UPDATE ...." instead of "\"UPDATE ...\"")
Also, I wouldn't use sprintf to build your query string. Too easy to get buffer overflow problems. Use STL strings or string streams or just concatenate _bstr_t's
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Thank you very much for your answer!
Remowing the quotes solved my problem and now it is working fine...
Thanks a lot again...
Well... I am a beginner ...
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I have a class cat and i am trying to pass an array of cat obiject to a function as well as valid components of the array.
void show(Cat cats[], int i)
What is incorrect in my line?
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Could anyone tell me what is wrong with the following snippet? printf only prints the the first word of each key and printes it several times.
for example Microsoft Office would be printed as
Microsoft
Microsoft
microsoft and so an..
I am using XP sp1 and VS2003
Thanks,
Max....
long RESULT;
HKEY hKey;
int _tmain(int argc, _TCHAR* argv[])
{
RESULT = RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall", 0, KEY_READ, &hKey);
printf("Regopen returned %d ", RESULT );
int KeyIndex = NULL;
CHAR SubKeyName[MAX_PATH];
DWORD SubKeyLenth = [MAX_PATH];
FILETIME InstallDate;
do
{
RESULT = RegEnumKeyEx(hKey,
KeyIndex,
SubKeyName,
&SubKeyLenth,
NULL,
NULL,
NULL,
&InstallDate);
printf( "(%d) %s\n", KeyIndex++ , SubKeyName);
}
while (RESULT != ERROR_NO_MORE_ITEMS);
return 0;
}
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do
{
SubKeyLenth = MAX_PATH;
RESULT = RegEnumKeyEx(hKey, KeyIndex,SubKeyName,&SubKeyLenth,
NULL,NULL,NULL,&InstallDate);
printf( "(%d) %s\n", KeyIndex++ , SubKeyName);
}
SubKeyLenth <- is in/out and it needs to be reset on every iteration
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Hi,
i am writing a program which produces a constant square wave form from Parallel port. I am doing this in a infinite while loop, the problem is i also want something to happen when i click a button on the dialog. How do i keep the loop runing and still be able to click a button?
THANKS
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Check Subject below "App still works but GUI does not update when moved."
Papa
while (TRUE)
Papa.WillLove ( Bebe ) ;
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Papa wrote:
while (TRUE)
Papa.WillLove ( Bebe ) ;
Not many events in your loop!;P
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WillLove is a sum of events
Papa
while (TRUE)
Papa.WillLove ( Bebe ) ;
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Yes you should put your loop in a thread but if youu want something quick and dirty, call the following function (DoEvents) in your loop.
<br />
BOOL DoEvents()<br />
{<br />
MSG msg;<br />
while (::PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))<br />
{<br />
if (msg.message == WM_QUIT)<br />
{<br />
return FALSE;<br />
}<br />
if (!AfxGetApp()->PreTranslateMessage(&msg))<br />
{<br />
::TranslateMessage(&msg);<br />
::DispatchMessage(&msg);<br />
}<br />
}<br />
return TRUE;<br />
}<br />
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Hi,
1. is manipulating font size, the only way to resize non-owner-drawn conbo box?
2. using SetFont() and resizing combo box, i get the combo box show right but calling GetWindowRect() with list box not dropped, returns some default size, no matter what the actual visible size is. how can i get the correcty visible size?
-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
Email: y_becker@netvision.net.il
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GetWindowRect should return the size of the combobox + the size of the drop window. When you use MoveWindow(0 on a combo box, the rect you provide includes the drop window size. When the drop window is not whown, I beleive that the combo box sizes to the size of GetSystemMetrics(SM_CYVSCROLL), but if your using a different font, it may not be correct.
Roger Allen
Sonork 100.10016
Death come early, death come late,
It takes us all, there is no reason.
For every purpose under heaven,
To each a turn, to each a season.
A time to weep and a time to sigh,
A time to laugh and a time to cry,
A time to be born and a time to die.
Dust to dust and ashes to ashes,
And so I end my song.
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Thank you Roger,
the returned combo height is indeed constant (SM_CYVSCROLL = 20 on my system) and equals 24.
BUT
how can i get the visible size of the non-list-dropped combo ? is this a system constant as well !?
Roger Allen wrote:
GetWindowRect should return the size of the combobox + the size of the drop window. When you use MoveWindow(0 on a combo box, the rect you provide includes the drop window size. When the drop window is not whown, I beleive that the combo box sizes to the size of GetSystemMetrics(SM_CYVSCROLL), but if your using a different font, it may not be correct.
Roger Allen
Sonork 100.10016
-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
Email: y_becker@netvision.net.il
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Yonatan wrote:
how can i get the visible size of the non-list-dropped combo ? is this a system constant as well !?
Its something that I have looked for myself. I do not know of a specific constant for it. I have usually simulated it in the past by having another control the same height as a combobox on the form and measuring that.
The other thng you could do is add in some borders:
GetSystemMetrics(SM_CYBORDER) * 2 + GetSystemMetrics(SM_CYVSCROLL);
Roger Allen
Sonork 100.10016
Death come early, death come late,
It takes us all, there is no reason.
For every purpose under heaven,
To each a turn, to each a season.
A time to weep and a time to sigh,
A time to laugh and a time to cry,
A time to be born and a time to die.
Dust to dust and ashes to ashes,
And so I end my song.
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Dear Roger, Dave, thank you again for your answers.
since English is not my mother tongue (hint: i fluently read the original scripture of Ecclesiastes, the resource of the poem Roger quotes ), the question i posed may have been somewhat unclear.
i want to embed a combobox inside a list control subitem. now, by changing the combo font size i can control the combo (==edit+arrow == -1 item) size (SetItemHeight(-1, x) fails here), and visibly make it smaller than system default (without resorting to Owner-Drawn combo). alas, i wish to programatically quantify the combo frame VISIBLE size, to some actual pixel measure (i do not wish to use the resource editor). i cannot get it with GetClient\WindowRect() because of unknown reasons (which have nothing to do with drop down list size).
i hope i could profit from your experience.
Thank you all![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif) , yonatan
-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
Email: y_becker@netvision.net.il
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Use CComboBox::GetItemHeight()/CComboBox::SetItemHeight() with nIndex set to -1 to get/set the height of the edit/static control portion of the combobox
Sonork 100.11743 Chicken Little
"You're obviously a superstar." - Christian Graus about me - 12 Feb '03
Within you lies the power for good - Use it!
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Dear PJ, thank you for your answer.
Please check my last answer to Roger.
please advise, , yonatan
-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
Email: y_becker@netvision.net.il
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