C / C++ / MFC

Re: small but high quality(color deph and pixel) toolbar?

27-Jun-07 6:32

Yes, what led mike and Zoltan stated Smile | :)

It's going to depend on the quality of your resizing. For example, Photoshop will do a good job
using interpolation, compared to letting Windows resize them, which may just remove pixels,
resulting in poorer quality.

Take a look at the resources in the Microsoft apps...they generally have many sizes authored for
the same icons. The advantage of having a good art department Smile | :)

Mark

"Go that way, really fast. If something gets in your way, turn."

Electronic7527-Jun-07 7:28

Re: small but high quality(color deph and pixel) toolbar?

27-Jun-07 7:28

Mark, led mike and Zoltan, I tried Icon maker and also photoshop(differnt filters) but believe me result was catastrophic! It was much nicer if me who can't draw much nicer than a 5 years old, draw it from scratch! I'm not looking for a magic spell but some programming tricks so I can give 32x32 icons to CToolbar and CToolbar draw them at size of 16x16 toolbars. I still can't believe nice small icons in visual studio and MS office are really 16x16 OMG | :OMG:

Mark Salsbery27-Jun-07 7:56

Re: small but high quality(color deph and pixel) toolbar?

27-Jun-07 7:56

16x16 is 256 pixels - there's no way around it Smile | :)

Some questions(so maybe we can come up with an acceptable solution):

What is the format of your source "icons"...
Bitmap or Icon?
How many bits-per-pixel?
Do they contain a transparent color or use alpha values?

How are you setting the button bitmaps in the toolbar?
Can you provide a code sample?
Are you using TB_ADDBITMAP or an imagelist?

Mark

"Go that way, really fast. If something gets in your way, turn."

Electronic7527-Jun-07 8:17

Re: small but high quality(color deph and pixel) toolbar? [modified]

27-Jun-07 8:17

Nice icons all in .ico format and high color for those that are really big (>30KB) and 8bit color(256color) those that are 766 bytes. for the moment lets forget high color, so we are talking about 256 color 32x32 .ico format that most of them do not have transparent colors.
The way I use them is pretty much straight forward,in visual studio 2005 in Resource view under toolbar node, I add a toolbar then I copy the icon of button that I've already opened as icon resource and paste it over the button. The toolbar has an ID for example ID_MY_TOOLBAR.
then I define a CToolbar member variable in CMainFrame and in OnCreate function I create my toolbar.

<br />
m_barMyOwnToolBar.CreateEx(this, tbstyle-flat, WS_CHILD | WS_VISIBLE | CBRS_TOP | CBRS_GRIPPER | CBRS_FLYBY | CBRS_SIZE_DYNAMIC);<br />
m_barMyOwnToolBar.LoadToolBar(ID_MY_TOOLBAR);<br />

now if my original icons in toolbar are large 32x32 then toolbar will be large and if my original icon are 16x16 then my toolbar will be at right size. the problem is I want to load 32x32 but I want 16x16 size.
still am I asking too much? Smile | :)

Mark Salsbery27-Jun-07 9:52

Re: small but high quality(color deph and pixel) toolbar?

27-Jun-07 9:52

I personally have a problem with the LoadToolBar() method of constructing a toolbar - it alters
the color table of the bitmap. It works great for 16-color bitmaps and RAD but I like control
over my code Smile | :)

.

For best results, I prefer to use an image list - it lets you specify a transparent color and
supports 24-bit RGB bitmaps nicely.

It takes a few extra steps, but the reward is complete control over your button bitmaps...

// In this example, I'm creating a toolbar with 2 buttons.  Each button bitmap is 16x16,
// <code>32-bit ARGB 24-bit RGB</code>.  The transparent color is bright green...
 
// In the parent window's .CPP file
static TBBUTTON ToolBarButtonDescs[] =
{
   {0, ID_BUTTON1, TBSTATE_ENABLED, TBSTYLE_BUTTON, {0,0}, 0, 0},
   {1, ID_BUTTON2, TBSTATE_ENABLED, TBSTYLE_BUTTON, {0,0}, 0, 0}
};
...
// In the parent window's constructor (m_ToolBarImageList is member variable CImageList m_ToolBarImageList; )
// IDB_TOOLBARBITMAP is the ID of the bitmap resource to load into an image list
CBitmap bitmap;
bitmap.LoadBitmap(IDB_TOOLBARBITMAP);
m_ToolBarImageList.Create(16, 16, ILC_COLOR24|ILC_MASK, 2, 1);
m_ToolBarImageList.Add(&bitmap, RGB(0x00,0xFF,0x00));
...
// In the parent window's OnCreate()/OnInitDialog()
m_barMyOwnToolBar.CreateEx(this, TBSTYLE_FLAT, 
                           WS_CHILD | WS_VISIBLE | CBRS_TOP | CBRS_GRIPPER | CBRS_FLYBY |  
                                                              CBRS_SIZE_DYNAMIC);
m_barMyOwnToolBar.GetToolBarCtrl().SetImageList(&m_ToolBarImageList);
m_barMyOwnToolBar.GetToolBarCtrl().AddButtons(2, ToolBarButtonDescs);

Note that you need to create the bitmap for the imagelist. It needs to be 16 pixels high by
(16 * numberofbitmaps) pixels wide. Create this bitmap with a good bitmap editor as mentioned
before - your buttons will look like whatever you make the bitmap look like (unlike when you use
LoadToolBar()).

Also note that this works for me....I'm not saying it's the best method - it's just one example.
I find it very flexible at the expense of a few extra ines of code.

You don't have to use a 24-bit RGB bitmap for the imagelist. If you choose to use 256-color,
create it something like:

//CBitmap bitmap;
//bitmap.LoadBitmap(IDB_TOOLBARBITMAP);
//m_ToolBarImageList.Create(16, 16, ILC_COLOR24|ILC_MASK, 2, 1);
//m_ToolBarImageList.Add(&bitmap, RGB(0x00,0xFF,0x00));
m_ToolBarImageList.Create(IDB_TOOLBARBITMAP, 16, 1, RGB(0x00,0xFF,0x00));

Hope you can extract something useful from that!
Mark

-- modified at 15:59 Wednesday 27th June, 2007
oops - edits marked in red Smile | :)

"Go that way, really fast. If something gets in your way, turn."

Electronic7527-Jun-07 10:52

Re: small but high quality(color deph and pixel) toolbar?

27-Jun-07 10:52

Thanks Mark, Though original problem persists but your way of attaching bitmaps difinately is better than mine, thanks. I have to solve this issue one way or another either programistic way(accomodate 32x32 bit icons in 16x16 place) or artistic way(work on my drawing skills to draw 16x16 icons that look really good). Smile | :)

Mark Salsbery27-Jun-07 11:20

Re: small but high quality(color deph and pixel) toolbar?

27-Jun-07 11:20

Electronic75 wrote:
work on my drawing skills to draw 16x16 icons that look really good)

Yeah....I'm not good at it....I just steal them right out of microsoft exe/dlls Wink | ;)

Just kidding Microsoft! Poke tongue | ;-P

"Go that way, really fast. If something gets in your way, turn."

Electronic7527-Jun-07 12:27

Re: small but high quality(color deph and pixel) toolbar?

27-Jun-07 12:27

Mark Salsbery wrote:
I just steal them right out of microsoft exe/dlls

Don't ever look at the issue this way! every program that you write for MS-Windows platform causes many users of that program are being forced to use MS-Windows, so in fact you are a microsoft employee working for free for them. if something is being stealed it is from the other side!;)

Mark Salsbery27-Jun-07 12:32

Detect Code page using IMultiLanguage2 Interface (MS VC++ (Win32))

27-Jun-07 12:32

Of course! That was just my public comments about the subject Wink | ;)

*edit* Oh, and if anybody asks, I was never here...

"Go that way, really fast. If something gets in your way, turn."

bikas_suman8327-Jun-07 3:47

bikas_suman83

27-Jun-07 3:47

Hi all,

I have this sample data in a .txt file,

-- Ne doit pas faire
-- é
select PARC.CONTYP
, PARC.CONSTA
, count(*)
from ParcNonCede PARC
, PLAN P
and PARC.CONSTA not in ('Stock', 'Détourné')
group by CONTYP, CONSTA
;

I am saving this in UTF-8 (not necessarily using Notepad).

Now I have this sample code to detect the Codepage of a buffer as below..
void
ExamineData(String &codepage, String &buffer)
{
IMultiLanguage2 *mlang;
DetectEncodingInfo info = {0};
MIMECPINFO codepageinfo;
int length = 0, cnt = 1;
String codepagestr; // String Datatype is my class
unsigned int len =1;

if(buffer.GetString())
length = buffer.GetLength();

HRESULT hr = S_OK;
SUCCEEDED(CoInitialize(NULL)); // init COM

hr = CoCreateInstance(CLSID_CMultiLanguage, NULL, CLSCTX_INPROC_SERVER, IID_IMultiLanguage2,(void **)&mlang);

hr = mlang->DetectInputCodepage(0,0, (wyChar *)buffer.GetString(), &length, &info, &cnt);

if(SUCCEEDED(hr))
{
hr = mlang->GetCodePageInfo(info.nCodePage, info.nLangID, &codepageinfo);
if(SUCCEEDED(hr))
codepage.SetAs(codepageinfo.wszDescription);
}

mlang->Release();
CoUninitialize();
}

Now this Function Detects the Codepage for the Buffer as "Western European (Windows)" even though it is an UTF-8. But Notepad is able to correctly detect it as UTF-8.

I am Not able to come to a conclusion whether it is a problem with the code or with the API.

Please Help me.

Thanks in Advance,
Manohar.S

Re: Detect Code page using IMultiLanguage2 Interface (MS VC++ (Win32))

bikas_suman8328-Jun-07 1:45

bikas_suman83

28-Jun-07 1:45

anybody?
I need some help over here..
Regards
Manohar.S

How to test the network status

kcynic27-Jun-07 3:24

Re: How to test the network status

27-Jun-07 3:24

There has a Client connected with the Server.
How should the Server could test the Client's net-speed?

GOOD LUCK

Moak29-Jun-07 1:20

Moak

29-Jun-07 1:20

kcynic wrote:
How should the Server could test the Client's net-speed?

I dont know a reliable method. However, monitor the maximum transfer rate or let the user on the client end enter his connection speed (client needs to communicate that to the server). In any case the average network transfer rate depends on many factors and won't be a fixed value over time.

kcynic wrote:
GOOD LUCK

Release the project

kcynic27-Jun-07 3:13

27-Jun-07 3:13

I have a project complied using shared dll of MFC.I should release it now.
How but the .exe could not run on other PC with no VC.
I know I should release all the .dll files with the .exe file.But how should I find witch .dll files I should copy it?

Thanks

aatul27-Jun-07 4:14

aatul

27-Jun-07 4:14

Run the Microsoft Tools->Dependency walker and put the dll in it. It will show all dependency.

kcynic27-Jun-07 23:37

27-Jun-07 23:37

I find there has no such tool in VS2005. I use vc6's Dependency Walker to view the dll it need.I add all the dlls.
But when I make a install project and using the result setup file to install it in another PC,it could not run but terminated with the message that the configuration is wrong.
How to resolve it?
Thanks

sheshidar27-Jun-07 18:19

sheshidar

27-Jun-07 18:19

I have a project complied using shared dll of MFC.

Try with make changes in project settings.
Compile using static library.
May be u'll get the result

kcynic27-Jun-07 23:42

27-Jun-07 23:42

the problem is that,if i compiled it using static library,the program would crash at runtime.
But the debug version works well.Why?

Thread debug

RichardS27-Jun-07 2:59

RichardS

27-Jun-07 2:59

Hi All,

Our programmes use a generic thread creation and destruction so it makes it easy to create and control threads in the system without everybody having to re-implement the creation code. The problem however is that in debug mode we get:

The thread '___thread_callback' (0x8ec) has exited with code 0 (0x0).

___thread_callback is repeated a number of times equivilant to the number of threads created. Is there any way of changing this debug output in VS2005 to indicate which thread exited?

thanks,
Rich

"Programming today is a race between software engineers striving to build bigger and
better idiot-proof programs, and the Universe trying to produce bigger and better idiots.
So far the Universe is winning." -- Rich Cook

BadKarma27-Jun-07 3:35

BadKarma

27-Jun-07 3:35

I think so, you could give your thread a meaningful name.

Use the following code snippit.

{
  //
  //  internal type
  //
  typedef struct tagTHREADNAME_INFO
  {
     DWORD dwType; // Must be 0x1000.
     LPCSTR szName; // Pointer to name (in user addr space).
     DWORD dwThreadID; // Thread ID (-1=caller thread).
     DWORD dwFlags; // Reserved for future use, must be zero.
  } THREADNAME_INFO;

  //
  //  internal const
  //
  const DWORD MS_VC_EXCEPTION = 0x406D1388;

  THREADNAME_INFO thrdInfo;
   thrdInfo.dwType = 0x1000;
  thrdInfo.szName = "The Name";
  thrdInfo.dwThreadID = 0xffffffff;
  thrdInfo.dwFlags = 0;

  __try
  {
    RaiseException( MS_VC_EXCEPTION, 0, sizeof(thrdInfo)/sizeof(DWORD), (DWORD*)&thrdInfo );
  }
  __except(EXCEPTION_CONTINUE_EXECUTION)
  {
  }
}

I use this technique to simplify the debugging for My CWinThread derived, but i'm confident that it
should work for Worker threads as well. At low lever there isn't a difference.

Hope that this helps.

codito ergo sum

RichardS27-Jun-07 3:54

RichardS

27-Jun-07 3:54

That is an interresting way round the problem Smile | :)

Thanks.

led mike27-Jun-07 4:50

led mike

27-Jun-07 4:50

That's good but you could have just given him the link[^] to the documentation you got that from.