C / C++ / MFC

CPallini21-Dec-09 20:32

21-Dec-09 20:32

What is written in the file

File:f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\winocc.cpp

Line:318

Anu_Bala wrote:
Im using VS2008.

I have MFC that comes with Visual Studio 2005, hence the question.
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.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Anu_Bala21-Dec-09 21:45

Anu_Bala

21-Dec-09 21:45

BOOL CWnd::SetWindowPos(const CWnd* pWndInsertAfter, int x, int y, int cx,
int cy, UINT nFlags)
{
ASSERT(::IsWindow(m_hWnd) || (m_pCtrlSite != NULL)); // Line318

when i press F11 it goes another CPP and show assert error in this particular line

_CRTIMP int __cdecl _CrtDbgReportT(
int nRptType,
const TCHAR * szFile,
int nLine,
const TCHAR * szModule,
const TCHAR * szFormat,
...
)
{
int retval;
va_list arglist;

va_start(arglist,szFormat);

retval = _CrtDbgReportTV(nRptType, szFile, nLine, szModule, szFormat, arglist); //This line
va_end(arglist);

return retval;
}

Anu

CPallini21-Dec-09 21:49

21-Dec-09 21:49

It looks like you call SetWindowPos before the window is actually created (i.e. m_hWnd is not valid).
Smile | :)

Anu_Bala21-Dec-09 22:32

Anu_Bala

21-Dec-09 22:32

Yes,when i debug.that m_nWnd shows 0x000000{unused=???)

But where can i use that.
Actually i want that fucntionality.i want to change the width of dialog using that button.

Anu

CPallini21-Dec-09 22:44

21-Dec-09 22:44

Could you please post the code of your button handler?
Smile | :)

Dialog size does not change when DPI settings change

Anu_Bala21-Dec-09 22:58

Anu_Bala

21-Dec-09 22:58

void CToolBarDlg::OnWindowPosChanging(WINDOWPOS* lpwndpos)
{
CDialog::OnWindowPosChanging(lpwndpos);
SetWindowPos(&CWnd::wndTop,0,80,400,900,SWP_NOSIZE);
}

void CToolBarDlg::Onchangesize() //Button Handler
{
SetWindowPos(NULL,0,80,200,900,SWP_NOSIZE);

}

Anu

_T("No name")20-Dec-09 18:28

_T("No name")

20-Dec-09 18:28

Hi,
I have made a custom dialog have done some custom Drawing on it. it is derived from CDialog. when i change DPI settings on my system dialog size does not change accordingly.. I need it to be changed as i have set my font size according to DPI and font size changes..

plz help

P.S. :- Not even dialog size i have some other custom controls also like button its size also does not change in my application

Thanks

Re: Dialog size does not change when DPI settings change

KingsGambit20-Dec-09 20:28

KingsGambit

20-Dec-09 20:28

May be you can handle WM_SETTINGCHANGE or WM_DISPLAYCHANGE message and see if you get the notification when the system settings is changed.

Re: Dialog size does not change when DPI settings change

_T("No name")20-Dec-09 20:49

_T("No name")

20-Dec-09 20:49

that message is coming... but do i need to handle this seperately.. i mean shouldnt MFC change window size automatically ???

Re: Dialog size does not change when DPI settings change

CPallini20-Dec-09 22:28

Re: Dialog size does not change when DPI settings change

20-Dec-09 22:28

_T("No name") wrote:
i mean shouldnt MFC change window size automatically ???

Well, if it doesn't (and looks like it doesn't) then you have to do it, I guess it isn't such a daunting task.
Smile | :)

_T("No name")20-Dec-09 22:38

_T("No name")

20-Dec-09 22:38

i am not getting any idea how to incorporate DPI in setting my dialog's width.. can u help me out....

Re: Dialog size does not change when DPI settings change

CPallini21-Dec-09 1:45

character comparision...case insensitive

21-Dec-09 1:45

If you wish to update your dialog size then, one simple way may be:

define a default (pixel) size for a default DPI setting (for instance 800x600 pixels for 96x96 dpi).
on receiving the 'system dpi changed' notification, change the size according to new dpi settings, for instance, 120x120 dpi would require:
(800*120/96) x (600*120/96) pixels = 1000x750 pixels.

You may obtain system dpi settings with the following code

HDC hdc = GetDC(NULL);
int dpix = GetDeviceCaps(hdc, LOGPIXELSX);
int dpiy = GetDeviceCaps(hdc, LOGPIXELSY);
ReleaseDC(NULL, hdc);

hrishiS20-Dec-09 18:22

hrishiS

20-Dec-09 18:22

Hi to all.

I am having a problem in comparing characters in a string. I need to do it character by character only.

Currently I am checking something like

if(*st1 == *st2){.....}

But It results different when the characters are in different case.

So Can anyone please help me in MODIFYING THE SAME STATEMENT FOR CASE INSENSITIVE COMPARISON.

Thanks in advance

-----------------------------
I am a beginner

Re: character comparision...case insensitive

«_Superman_»20-Dec-09 20:13

«_Superman_»

20-Dec-09 20:13

if (_tolower(*st1) == _tolower(*st2))

«_Superman_»
I love work. It gives me something to do between weekends.

Microsoft MVP (Visual C++)

Re: character comparision...case insensitive

hrishiS20-Dec-09 20:36

hrishiS

20-Dec-09 20:36

thanks a lot

-----------------------------
I am a beginner

CString Word Count and Word Search

kiddyduck20-Dec-09 16:02

kiddyduck

20-Dec-09 16:02

I have been working on this problem for a long time and with no progress.
I am trying to count the number of words in a CString and other punctuation and specific word counts.
My code is working properly for .txt files using ifstream and stringstream.

However when I was trying to convert those codes from txt files to CString, errors came in such as conversion error between CString and Stringstream. Will appreciate if you can take a look at my codes and suggest a solution. Thanks a lot!

CString Content("some text inside");
string file,line,word,temp;
stringstream *ss;
map<string,int> freq;
map<string,int>::iterator z

stringstream myfile(Content);

while (! myfile.eof() )
{
// Line & Word Counts
while (getline (myfile,line)){
++lineCnt;
ss = new stringstream(Content);
while (ss->good()){
if ((*ss)>>word){
++dwordCnt;
if ((z=freq.find(word)) == freq.end()){
freq.insert(pair<string,int>(word,1));
}else {
freq[word]++;
}
//Semi-colon Count
size_t p=0;
size_t n=0;
size_t m=0;
size_t j=0;
while ((p = word.find(';',p)) != string::npos){
++semiCnt; ++p;
}
while ((n = word.find('.',n)) != string::npos){
++stopCnt; ++n;
}
while ((m = word.find('?',m)) != string::npos){
++QueCnt; ++m;
}
while ((j = word.find('!',j)) != string::npos){
++exclCnt; ++j;
}
}
}
delete ss;
}
}

for (z = freq.begin();z != freq.end(); ++z) {
if (z->second == 1) ++duniqCnt;
if ((z->first).find(BUT) != string::npos) ++butCnt;
if ((z->first).find(AND) != string::npos) ++andCnt;
if ((z->first).find(HENCE) != string::npos) ++henceCnt;
if ((z->first).find(WHILE) != string::npos) ++whileCnt;
if ((z->first).find(BECAUSE) != string::npos) ++becauseCnt;
if ((z->first).find(AS) != string::npos) ++asCnt;
if ((z->first).find(SHALL) != string::npos) ++shallCnt;
if ((z->first).find(THE) != string::npos) ++theCnt;
if ((z->first).find(OF) != string::npos) ++ofCnt;
}

David Crow20-Dec-09 17:52

David Crow

20-Dec-09 17:52

kiddyduck wrote:
stringstream myfile(Content);

Have you tried:

stringstream myfile(ios_base::in);
myfile << (LPCTSTR) Content;

"One man's wage rise is another man's price increase." - Harold Wilson

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

kiddyduck22-Dec-09 14:26

kiddyduck

22-Dec-09 14:26

Oh yes! It's working fine now. However there is another problem with another string stream.
Tried using the solution you suggested, still no avail. Thanks a lot! It has been great help from you!

stringstream *ss;

ss = new stringstream((LPCTSTR)Content);

error C2664: 'std::basic_stringstream<_Elem,_Traits,_Alloc>::basic_stringstream(std::ios_base::openmode)' : cannot convert parameter 1 from 'LPCTSTR' to 'std::ios_base::openmode'

David Crow22-Dec-09 16:17

David Crow

22-Dec-09 16:17

kiddyduck wrote:
Tried using the solution you suggested, still no avail.

My suggestion would have been:

stringstream *ss = new stringstream(ios_base::in);
*ss << (LPCTSTR) Content;

When does Message Queue get created in window programming?

kiddyduck22-Dec-09 16:38

kiddyduck

22-Dec-09 16:38

Solved it.

The above m\solution would not be possible as I am using the UNICODE.
Therefore I used an intermiediary to convert into string in order to use the string stream

CT2CA pszConvertedAnsiString (Content);
std::string s(pszConvertedAnsiString);

ss = new stringstream(s);

Thanks for your help!

Prabhu09200920-Dec-09 2:18

Prabhu092009

20-Dec-09 2:18

When does Message Queue get created in window programming?In the sense, In Doc/View architecture or Dialog based application , when message queue gets created? Can anyone explain it thru code deeply?

Re: When does Message Queue get created in window programming?

enhzflep20-Dec-09 3:09

enhzflep

20-Dec-09 3:09

I assume that it's between loading and running the app (i.e by the OS, and in the background)

Re: When does Message Queue get created in window programming?

Richard MacCutchan20-Dec-09 4:33

Richard MacCutchan

20-Dec-09 4:33

Prabhu092009 wrote:
When does Message Queue get created in window programming?

The message queue is created as soon as your application starts, whether Doc/Vew or dialog. Some system messages are automatically posted to the queue as a result of the window being created and some as a result of user actions, such as mouse movement/clicks in the window's area, menu selection, toolbar button clicks etc.

Re: When does Message Queue get created in window programming?

CPallini20-Dec-09 4:47