C / C++ / MFC Discussion Boards

Re: How to rotate and scale a bitmap using GDI+ ?

transoft2-Aug-09 4:08

transoft

2-Aug-09 4:08

Dear David

Thank you very much for your code? I tried and had no luck. Do you know what happen?

Best regards,

Re: How to rotate and scale a bitmap using GDI+ ?

Randor 3-Aug-09 13:37

Randor

3-Aug-09 13:37

transoft wrote:
Do you know what happen?

Well, my sample probably was not quite correct as I wrote it in the reply box. I did this one inside my compiler and tested it:

Gdiplus::Image image(L"HelloWorld.bmp");
Bitmap bmp(1024,1024);
Graphics g(&bmp);
g.TranslateTransform(260.0f,80.0f);
g.RotateTransform(45.0f);
g.DrawImage(&image,0,0);
CLSID  encoderClsid;
GetEncoderClsid(L"image/png", &encoderClsid);
bmp.Save(L"HelloWorld2.png",&encoderClsid);

I confirmed this sample actually works.

Best Wishes,
-David Delaune

Re: How to rotate and scale a bitmap using GDI+ ?

transoft4-Aug-09 0:27

transoft

4-Aug-09 0:27

Dear David,

Your code works perfect. Thank you so much for helping me. I spent so much on it.

Best regards,

[mfc] making a game trainer [modified]

rahuljin31-Jul-09 7:42

rahuljin

31-Jul-09 7:42

hello,

i want to make a game trainer using mfc. please guide me and tell me is it good to write a tainer in mfc ??

sorry, but here it is.

i have a game "Fallout 3". there are several trainers available for it on internet but i want to develop my own trainer for this game. so i want to say that is there any tutorial available for writing a game trainer in mfc for any game ?

btw thanks

rahul

modified on Saturday, August 1, 2009 12:59 AM

Re: [mfc] making a game trainer

Rajesh R Subramanian31-Jul-09 7:56

Rajesh R Subramanian

31-Jul-09 7:56

Kindly read the guidelines. It's the sticky post, saying "How to get an answer to your question" and is located at the top of this forum.

It is a crappy thing, but it's life -^ Carlo Pallini

Re: [mfc] making a game trainer

RomanMzh31-Jul-09 11:41

RomanMzh

31-Jul-09 11:41

The best place to start is www.google.ca[^]

SSL Delay

BeerFizz31-Jul-09 6:59

BeerFizz

31-Jul-09 6:59

Hi,

I'm using Michael Chourdakis's very nice SSL package from here:

http://www.codeproject.com/KB/IP/ssl_sockets.aspx

I used the code as a base for a test app and its working very well, however, I'm having a strange issue.

On one remote test machine, when I run as a server in NON SSL mode, sending a few hundred bytes back and forwards, its lightening fast. I switch to SSL mode and its a little slower (due, I suppose to the encryption) but it's still fast.

However, on a second remote test machine at a different location the results vary. The NON SSL mode works lightening fast, however the SSL mode takes 30-40 seconds to complete. It connects and then there is a long period until the data is transferred back and forth, but once it starts its fast.

Is it possible that on this second machine the Certificate is being re-negotiated every time? If so, do you know if there is an app or an OS fix?

Thanks for your help,
Phil

Pasting into Excel rich content

BadJerry31-Jul-09 6:43

BadJerry

31-Jul-09 6:43

I'd like to be able to put content into the clipboard so it could be pasted into Excel... but I also want some formatting information (font, color, ...) so the CF_TEXT is not good enough. Any idea, pointer?

Regards,
Jerry

file not saving properly

Rakesh531-Jul-09 4:59

Rakesh5

31-Jul-09 4:59

hi all,

i am writing content into a notepad file using _wfopen function and saving it in unicode format by giving cc = unicode as one of the arguments..

its saving the file in unicode encoding too.. but when i tried to read the file, its not reading as unicode rather its reading as ascii..

i found this by giving an if condition like this:
wchar_t firstchar = NULL;
if (file.Read(&cFirstChar, sizeof(wchar_t)) && firstchar == (wchar_t)0xFEFF)..

its not showing the first character as 0xfeff rather its showing the first character as the letter present in the notepad file..

am i wrong in saving the file? if so, how to make the first character of the file as oxfeff..

thanks,
rakesh

Re: file not saving properly

RomanMzh31-Jul-09 5:23

RomanMzh

31-Jul-09 5:23

First about Unicode.
There are two ways to store Unicode.
E.g 'a' (ASCII) could be stored in Unicode like so:
0x61 0x00 or 0x00 0x61
How do you know the difference ?
By storing a FE FF at the beginning of every Unicode string (this is called a Unicode Byte Order Mark) you know which way to read the bytes.

Example: If I store 'a' in Unicode file I can have:

FF FE 61 00

OR

FE FF 00 61

Re: file not saving properly

Rakesh531-Jul-09 5:31

Rakesh5

31-Jul-09 5:31

hi,

ya you were correct..its showing the ascii value rather FEFF as the first character of the file..

but the file encoding is in unicode.. (i have made it to write it in unicode encoding thru code..)

Thanks,
Rakesh.

Re: file not saving properly

RomanMzh31-Jul-09 11:44

RomanMzh

31-Jul-09 11:44

That means you didn't save it as Unicode ....

What code are you using to write to the file ?

GetKeyNameText and Uppercase

syntax28uk31-Jul-09 3:56

syntax28uk

31-Jul-09 3:56

Hi there,

The GetKeyNameText function returns the name of the key pressed in the keyboard.
My question is, is there a way to tell whether the key is upper case or lower case?

Jr.

Re: GetKeyNameText and Uppercase

EliottA31-Jul-09 4:11

EliottA

31-Jul-09 4:11

I think ctype.h is the class that holds the functions isupper and islower which accepts a char and returns whether it is capitalized or lowercase.

Check out the CodeProject forum Guidelines[^]
The original soapbox 1.0 is back![^]

UINT ThreadProc(LPVOID param)

susanne131-Jul-09 2:49

susanne1

31-Jul-09 2:49

Can you tell me please how can call or access a global variable or a function defined in th Doc.cpp or anyaother class from inside UINT ThreadProc (LPVOID param)?

UINT ThreadProc(LPVOID param)
{
CTestDoc* pDoc = GetDocument(); // error: GetDocument() is not defined???
ASSERT_VALID(pDoc);

::WaitForSingleObject(m_Thread_Sel_Start.m_hObject , INFINITE);

::MessageBox((HWND)param, strThread_Start, strThread_Caption, MB_OK);

CSQLCommand::FindSQLCmd(pDoc,m_strSelect);// error :m_strSelect is defined in the CTestView.h but he can not find it , pDoc is already unkown

bool bKeepRunning = true;

while(bKeepRunning)
{
int nResult = ::WaitForSingleObject (m_Thread_Sel_End.m_hObject ,0);

if(nResult == WAIT_OBJECT_0)
bKeepRunning = false;
}

::PostMessage((HWND)param, WM_THREADENDED, 0, 0);

return 0;
}

Can i define the UINT ThreadProc(LPVOID param) in the CTestDoc.cpp?
And why when i declare UINT ThreadProc(LPVOID param) in the CTestView.h i get this error:
error C3867: "CTestView::ThreadProc": use "&CTestView::ThreadProc".

and when i use &CTestView::ThreadProc i get a csting problem that can not be solved through an explict cast.

Re: UINT ThreadProc(LPVOID param)

Richard Andrew x6431-Jul-09 12:29

Richard Andrew x64

31-Jul-09 12:29

Your problem stems mainly from the fact that the ThreadProc function is static, and therefore cannot access any instance members of your application class.

The easiest fix is the following:

When you call AfxBeginThread, pass the "this" pointer as your Param.

Then, inside the ThreadProc, cast the Param back to whatever object it was when you passed it originally, such as your app class or your document class.

That way, you now have access to all the instance members of your class by using the -> operator.

Re: UINT ThreadProc(LPVOID param)

susanne13-Aug-09 1:11

susanne1

3-Aug-09 1:11

Hello,

i tried it the way you said, but it did not work , maybe i did something wrong, hier is the code:

void CTestView::ThreadStart(CTestDoc* pDoc, CString strSel)
{
m_Thread_Sel_Start.SetEvent ();

HWND hWnd = GetSafeHwnd();

m_strSelect = strSel;

m_pDoc = pDoc;// i need to access the CTestDoc.cpp, i passed pDoc from the CTestDoc.cpp to the CTestView.cpp
// and then assigend pDoc to m_pDoc which defined in the top of the CTestView.cpp

AfxBeginThread(ThreadProc, this/*hWnd*/, THREAD_PRIORITY_NORMAL);// Hier i passed this to the ThreadProc function
}

UINT ThreadProc
(
LPVOID param
)
{

(CTestView*)param-> // casting to CTestView did not work?

return 0;
}

Re: UINT ThreadProc(LPVOID param)

Richard Andrew x643-Aug-09 2:24

Richard Andrew x64

3-Aug-09 2:24

You're almost there.

The correct cast is:

((CTestView*)param)->function();

Re: UINT ThreadProc(LPVOID param)

susanne13-Aug-09 3:09

susanne1

3-Aug-09 3:09

okay but i got an application crash hier:

#ifdef _DEBUG
void CTestView::AssertValid() const
{
CView::AssertValid();
}

#ifndef _WIN32_WCE
void CTestView::Dump(CDumpContext& dc) const
{
CView::Dump(dc);
}
#endif
#endif

Re: UINT ThreadProc(LPVOID param)

Richard Andrew x643-Aug-09 4:10

Richard Andrew x64

3-Aug-09 4:10

Do you have a valid CTestView object before starting your thread?

If not, that will cause this crash.

saving file in unicode format

Rakesh531-Jul-09 1:47

Rakesh5

31-Jul-09 1:47

Hi all,

I am writing contents from an application into a notepad file.. i have used fwrite function... but the file is not saving in unicode format as default...

i want the file to be saved in unicode format...can anyone guide me how to make it through?

Thanks,
Rakesh.

Re: saving file in unicode format

HimanshuJoshi31-Jul-09 2:01

HimanshuJoshi

31-Jul-09 2:01

Here is a nice article that explains it for C++ High Performance Unicode Text File I/O Routines for C++[^]

latest version of Dr. Watson, the dump must be suitable to open ind VS 2005 Team edition

ptr_Electron31-Jul-09 1:32

ptr_Electron

31-Jul-09 1:32

can you please update me the latest version of Dr. Watson, the dump must be suitable to open ind VS 2005 Team edition.

I had older version of Dr. Watson installed, and the dump created with the version is not supported in VS 2005. I get below error msg, Please advice

---------------------------
Microsoft Visual Studio
---------------------------
Unable to start program 'C:\.........\DebugMDd\user8.dmp'.

Debugging older format crashdumps is not supported.
---------------------------
OK
---------------------------

Re: latest version of Dr. Watson, the dump must be suitable to open ind VS 2005 Team edition

Randor 31-Jul-09 15:52

Randor

31-Jul-09 15:52

Hi ptr_Electron,

I believe you just need to download the latest version of Debugging Tools for Windows[^]. I believe Dr. Watson is available in the Extra Tools installation.

Debugging Tools for Windows[^]

Best Wishes,
-David Delaune

ExcludeClipRect

kumar sanghvi31-Jul-09 1:21

kumar sanghvi

31-Jul-09 1:21

Hi,
i when exactly ExcludeCliprect is usefull.. i had a look in msdn it was as follows but i do not know what is a clipping region..
Creates a new clipping region that consists of the existing clipping region minus the specified rectangle.

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