C / C++ / MFC

Re: Where is IACLCustomMRU declared ?

10-May-13 22:05

Wasn't too diifficult to find[^].

Use the best guess

jeff610-May-13 23:21

jeff6

10-May-13 23:21

Find what ?!

There is nothing in MSDN doc about declarations, include files, IID_IACLCustomMRU
constant, etc ...

Re: Where is IACLCustomMRU declared ?

Richard MacCutchan10-May-13 23:52

10-May-13 23:52

I guess you need to ask Microsoft.

Use the best guess

HOW to make GUI in C++

OmarSH10-May-13 6:33

OmarSH

10-May-13 6:33

hello every body:
i made some java courses last years , i found that i can make a GUI by includeing some library , like import " javax.swing "
anyway this is just in java, i want to ask is there anything like that in C++ , as java is close to C++,
if there is i want to tell me how to do something like that i visual studio ,and if you know some resource i will be happy if you share it ,
thanks

David Crow10-May-13 7:19

David Crow

10-May-13 7:19

OmarSH wrote:
...as java is close to C++...

They are similar in syntax only, nothing else.

OmarSH wrote:
if there is i want to tell me how to do something like that i visual studio

If you have VS installed, just click the Create button. In the "New Project" dialog, select something under Visual C++ like MFC or Win32.

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

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«_Superman_»10-May-13 20:07

«_Superman_»

10-May-13 20:07

Pure C++ does not support creating GUIs.
C++ is meant for creating optimized, reusable libraries.

However, you can use some frameworks or libraries that are based on C++ like MFC as David mentioned.
This would, however, be OS dependent.

Some libraries like QT[^] provide source code compatibility between OSs where you write code once and build the same code on different environments.

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

Microsoft MVP (Visual C++) (October 2009 - September 2013)

Polymorphism in C

Richard MacCutchan10-May-13 22:04

10-May-13 22:04

«_Superman_» wrote:
Pure C++ does not support creating GUIs.

C++ is meant for creating optimized, reusable libraries.

Really? I wonder how I've neen doing it all these years then?

Use the best guess

ThatsAlok21-May-13 0:01

ThatsAlok

21-May-13 0:01

Richard MacCutchan wrote:
Really? I wonder how I've neen doing it all these years then?

might be late!!... you might be writing executable in disguise of library Smile | :)

"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
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How to load bitmap

econy10-May-13 3:01

econy

10-May-13 3:01

Hi, I placed bitmap file and source code in same folder.
I use:

hBitmap = SHLoadDIBitmap(_T(".\zzz01.bmp"));

try to load the bit map, but it can't load it.

Re: How to load bitmap

Richard MacCutchan10-May-13 3:42

Video display gets corrupted, Plays grey only?

10-May-13 3:42

That's probably because the executable program does not get written to the same folder as the source code. Your bitmap should be copied to the Debug or Release folder in the solution directory.

Use the best guess

Re: How to load bitmap

David Crow10-May-13 6:00

David Crow

10-May-13 6:00

econy wrote:

hBitmap = SHLoadDIBitmap(_T(".\zzz01.bmp"));

You are using a relative path. If you just want to find out if your "load" code works, use an absolute path instead. If that works, then you can study the difference between the two.

Re: How to load bitmap

ThatsAlok20-May-13 23:54

ThatsAlok

20-May-13 23:54

try using absolute path by using API GetModuleFileNameW

C++

WCHAR path[MAX_PATH];
GetModuleFileNameW(NULL, path, MAX_PATH);

this will return you the path to your executable, you have to strip filename from this and replace it with your bitmap

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

mbatra319-May-13 21:34

mbatra31

9-May-13 21:34

Hi,

I am working on a project in which I am using DirectX to play , pause or stop videos.

Video display is fine on windows XP, windows 7.....But when I run my application and play the same video on Windows 8 machine, video display gets corrupted.....The whole video turns greyish.
The screen doesn't display any other color except grey.

Anybody have any idea about this issue.?

Any help will be appreciated.

Regards,
Mbatra

Re: Video display gets corrupted, Plays grey only?

SoMad10-May-13 8:22

SoMad

10-May-13 8:22

It's hard to guess based on the little information you have provided, but it is possible the graphics card/driver does not support the particular pixel format (YUY2, UYVY, etc.) your program is trying to use.
Check in the code where the primary surface is being created and see which pixel format is being used.

This was something we had problems with 10 years ago, but I imagine you could run into it with Windows 8 since that is still fairly new and some drivers might need more work.

Soren Madsen

"When you don't know what you're doing it's best to do it quickly" - Jase #DuckDynasty

Question about Streamin CrichEditCtrl

ForNow9-May-13 6:27

9-May-13 6:27

Hi,

First all I want to thank all for the help with exception resulting from the CWnd::SendWIndow
seemed it had a errorous pointer as in the lparam

C++

my_event->buffer_ptr

I have done research on the Streamin Call Back function of rich edit but I haven't gotten it to work

I am trying to read into my RichEdit a MainFrame Assembler program Listing

I have a few questions

1) how do you terminate the callback the doc says set *pcb = 0; I did that call back function was still called after that

2) to set things on separate lines I add carriage return '/r' line feed '/n' at the end of each line is this correct

3) How does the framework set (or can I set the value of cb) number of bytes to read

Thanks

Richard MacCutchan9-May-13 7:06

9-May-13 7:06

It would help if you showed your actual code, as it's difficult to visualise exactly what you are doing. As to Q3, the documentation[^] implies that the framework sets the value of cb and the callback should transfer a mximum of that many bytes.

Use the best guess

ForNow9-May-13 18:54

9-May-13 18:54

C++

static DWORD CALLBACK readlisting(
         DWORD dwCookie,      // (in) pointer to CFile
         LPBYTE pbBuff,       // (in) pointer to the destination buffer
         LONG cb,             // (in) size in bytes of the destination buffer
        LONG FAR *pcb        // (out) number of bytes transfered
       )
 {
  UNREFERENCED_PARAMETER(cb);
          static BOOL flag = 0;
 //        LPCTSTR lpch;
		 int length;
        // CString buffer((LPCTSTR) lpch,135);
		 CString buffer; 
              //   char *holdptr;
                                 LPBYTE holdptr1;
                 int n;
                 CStdioFile* pFile = (CStdioFile*) dwCookie;

         switch (flag)
                 {
                 case 0:


                         flag = 1;


                                                do {
                                                     pFile->ReadString(buffer);
                                                    } while(buffer.Find((LPCTSTR)"CSECT") == -1);
                        length = buffer.GetLength();                                  
                        strcpy((char *) pbBuff,(char *)buffer.GetBuffer(length));
						holdptr1 = pbBuff + length;
						memcpy(holdptr1,"\r\n",2);
                          //     *pcb = 135;                // 87 btes transfer
							*pcb = length;
                        return 0;
                         break;
                 case 1:

                                                 while(TRUE)
                                                 {
                                                  pFile->ReadString(buffer);
												                                           length = buffer.GetLength();
                                                 if(buffer.Find((LPCTSTR)"END") > 0)
												 {
													                                        *pcb = 0;              // finish it up
                                                          return 0;          //
												 }
                  if(buffer.Find((LPCTSTR) "  ") < 2 || buffer.Find((LPCTSTR) "    ")    
                                                  ==7)          // no Location counter or opcode 
                                                 {
                                                  memset(pbBuff,0x20,135);
                                                  strcpy((char *)pbBuff,"  ");
                                                  holdptr1 =  pbBuff + 2;
                                                  memcpy(holdptr1,buffer.GetBuffer(length),length);
                                                  holdptr1 = holdptr1 + length;
                                                  memcpy(holdptr1,"\r\n",2);
                                                  *pcb = length + 2;
                                                         return 0;
                                                 }
                                                 else
                                                 {
												                                         n = buffer.Find((LPCTSTR) "    ");
                                                  memset(pbBuff,0x20,135);
                                                  strcpy((char *)pbBuff,"_ ");
                                                  holdptr1 =  pbBuff + 2;
                                                  memcpy(holdptr1,buffer.GetBuffer
                                                  (length),length);  // copy over location counter
                                                  holdptr1 = holdptr1 + length;
                                                   memcpy(holdptr1,"\r\n",2);
                                                   *pcb  = length + 2;
                                                   return 0;
                                                 }
                                                                                                 }
                 }
      return 0;
 }

Richard MacCutchan9-May-13 20:49

9-May-13 20:49

Apart from:

C++

memcpy(holdptr1,"\r\n",2);
//     *pcb = 135;                // 87 btes transfer
*pcb = length;  // should be length + 2

I cannot see anything incorrect in your code. However, you should be checking that you do not transfer more than cb bytes at each call; currently your code does not do that.
Are you sure that it gets to the point where it sets *pcb = 0;?

Use the best guess

ForNow10-May-13 3:06

10-May-13 3:06

Cb is 4096

Thanks

Richard MacCutchan10-May-13 3:40

10-May-13 3:40

Some other issues I noticed from reviewing the above:

You are mixing strcpy() and memcpy() calls. This will cause problems if you want to convert this to Unicode in the future.
Similarly you are using a LPBYTE pointer instead of LPTSTR. Your code is manipulating characters so all pointers should be character types, not byte.
In the second case clause, in both blocks you are prepending two characters to the buffer, but you are not adding two to the *pcb value to take account of this.
In the same place, you are using memset() to initialise the buffer with 135 spaces. This serves no purpose, but to waste time and code.

Whether fixing the above gets you closer to a solution, only time will tell.

Use the best guess

ForNow10-May-13 9:33

10-May-13 9:33

Forgot the WS_VISIBLE style in my resource file sorry for wasting your time ill make the changes you
Pointed out

Thanks

Richard MacCutchan10-May-13 21:58