Re: Load data in Combobox in VC++6.0 - C / C++ / MFC Discussion Boards

tasumisra8-Jan-09 20:04

8-Jan-09 20:04

Hi all,
I am making look and feel of a Dialog same as message box can anybody tell me what font and size should i make it so that it should look exactly similar as messageBox.

Thanks

vikas da

Re: Font and size of default message Box

Randor 8-Jan-09 20:34

Randor

8-Jan-09 20:34

You should use the MS Shell Dlg or MS Shell Dlg [^] logical fonts to have the same behavior of MS Windows dialogs. I am pretty sure that the default font size is 8 for most english users but if I remember correctly the default font size can be larger in an international installation.

Also keep in mind that although most users with 20-20 vision have the DPI set at 96, there may be individuals with DPI set at 120. You should test your messagebox dialog to ensure that it can handle all environments.

Best Wishes,
-David Delaune

Load data in Combobox in VC++6.0

aa_zz8-Jan-09 19:12

aa_zz

8-Jan-09 19:12

guide me load data to combobox for vc++6.0. please. thanks

"
enum { IDD = IDD_SPOOLIMAGE_DS_PP };//gọi form
DDX_Control(pDX, IDC_TEST, value_del);

CComboBox* cb = (CComboBox*)GetDlgItem(IDC_TEST);
cb->Clear();

CString sName = "";
for(int i=0; i<10;i++)
{
cb->SetItemData(i, DWORD(i));
}

"

Re: Load data in Combobox in VC++6.0

Hamid_RT8-Jan-09 19:20

Hamid_RT

8-Jan-09 19:20

And what the problem?

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

Re: Load data in Combobox in VC++6.0

aa_zz8-Jan-09 19:24

aa_zz

8-Jan-09 19:24

can you tell specification ? thanks . wish your help

Re: Load data in Combobox in VC++6.0

Hamid_RT8-Jan-09 19:31

Hamid_RT

8-Jan-09 19:31

If you want to add strings to Combobox you can use of:
for (int i = 0; i < m_nItems; i++)
{
m_pComboBox->InsertString(str);
}

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

Re: Load data in Combobox in VC++6.0

Chandrasekharan P8-Jan-09 19:25

Chandrasekharan P

8-Jan-09 19:25

why don't you use to AddString() to load data into the combo box?

Re: Load data in Combobox in VC++6.0

aa_zz8-Jan-09 19:38

aa_zz

8-Jan-09 19:38

I was Addstring() but wrong.

Re: Load data in Combobox in VC++6.0

David Crow9-Jan-09 3:31

David Crow

9-Jan-09 3:31

nguyen phan wrote:
cb->SetItemData(i, DWORD(i));

SetItemData() is used to Set the 32-bit value associated with the specified item in a combo box. AddString() is used to add a string to the end of the list in the list box of a combo box.

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Invoking a Web Service using managed C++ OR VC++ .NET

Thomas_Mathews8-Jan-09 18:31

Thomas_Mathews

8-Jan-09 18:31

How to Invoke a Web Service using managed C++ OR VC++ .NET . provide me with some link

Re: Invoking a Web Service using managed C++ OR VC++ .NET

Malli_S8-Jan-09 18:55

Malli_S

8-Jan-09 18:55

This[^] may help you.

[Delegates] [Virtual Desktop] [Tray Me !]

-Malli...!

Re: Invoking a Web Service using managed C++ OR VC++ .NET

Hamid_RT8-Jan-09 19:28

Hamid_RT

8-Jan-09 19:28

Did you see Web Services[^]?

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

socket and ethernet

pramod_r8-Jan-09 18:10

pramod_r

8-Jan-09 18:10

HI
how can i detect if a new ethernet cable is connected or disconnected dynamically?
can we use redundant ethernet cable so that it can takeover if the first one fails?
can we stop the communication through a port manually? i.e, enabling or disabling of a port?

Regards
pramod

getting dependent DLLS on a particular .exe [modified]

kir_MFC8-Jan-09 17:49

kir_MFC

8-Jan-09 17:49

hi experts plesae let me know how to obtain all DLLS information that depends on particular .exe file in 16 bit programs.Dependency walker is not working for 16-bit programs.iam working on vc++ 1.52...

kir_MFC

modified on Friday, January 9, 2009 1:40 AM

Re: getting dependent DLLS on a particular .exe

Naveen8-Jan-09 18:15

Naveen

8-Jan-09 18:15

use Dependency Walker[^]

nave

[OpenedFileFinder] [My Blog]

Re: getting dependent DLLS on a particular .exe

«_Superman_»8-Jan-09 18:27

«_Superman_»

8-Jan-09 18:27

Use the EnumProcessModules API.
Use the GetCurrentProcess API to get the handle to the current process or OpenProcess to open an already running process.

If you want to get the dependent DLLs of an EXE that is not running, you will need to parse the EXEs internal PE structure.

PEDump is one such program.

«_Superman_»

CImageList when .draw -> no more transparent

karhong8-Jan-09 17:15

karhong

8-Jan-09 17:15

Hi,
I'm loading resource>toolbar into CImageList

When i draw using imageList.draw, then the transparent is no more work
any idea?

CImageList ImgList;
COLORREF rgbTransparentColor = RGB(73,73,73);//dono what this use..
CBitmap bmp;
int bubu = bmp.LoadBitmapW(IDR_MAINFRAME);//the toolbar to be loaded

ImgList.Create(16.5,14.5,ILC_MASK | ILC_COLOR32,1,1);

ImgList.Add(&bmp, rgbTransparentColor);//put the bitmap into imagelist

CPoint ptImage(rectIcon.left + 1, rectIcon.top + 1);//get the point(position) of the rectangle to be drawn

ImgList.Draw(pDC, nIconPosi, ptImage, ILD_NORMAL);//draw the icon

good

Re: CImageList when .draw -> no more transparent

Naveen8-Jan-09 18:29

Naveen

8-Jan-09 18:29

karhong wrote:
RGB(73,73,73);//

Is this the color in the bitmap that you want to make transperent?

nave

[OpenedFileFinder] [My Blog]

Re: CImageList when .draw -> no more transparent

karhong8-Jan-09 18:42

karhong

8-Jan-09 18:42

yea.. i hope to make the imgList.Draw icons to have the background color of RGB(73,73,73)

good

Re: CImageList when .draw -> no more transparent

Iain Clarke, Warrior Programmer9-Jan-09 0:28

Iain Clarke, Warrior Programmer

9-Jan-09 0:28

Either I am misunderstanding you, or you are misunderstanding the API.

The transparent colour is the colour in the original bitmap that you want to become transparent.

I normally use a hideous shade of purple, or pink. I'm too manly to use them for actual display. There is nothing stopping you using a certain shade of gray (RGB(73,73,73)), but it will be less obvious when you are editing the original bitmap.

For debugging the sort of problem you have, I strongly recommend the excellent article http://www.codeproject.com/KB/applications/imageviewer.aspx[^] by PJ Arends.

Iain.

Codeproject MVP for C++, I can't believe it's for my lounge posts...

Preventing / Checking null 'this' pointer adjustment w/ Multiple Inheritance

D. Miller8-Jan-09 13:18

D. Miller

8-Jan-09 13:18

Hi all,

We have a situation where we need to check that the 'this' pointer is not null in a (non-virtual) member function. The problem is that the class it is in is sometimes involved in a multiple inheritance hierarchy where it is not the first base class and thus the 'this' pointer is adjusted by the compiler before it is given to our function. I've read that "some" compilers will explicitly check for null "this" pointers and not adjust them to prevent this issue; however, it does not seem that MSVC++ 9 behaves this way. Is there by any chance a flag that can be set to enable this behavior?

If there is not, what suggestions do you have on a way of reliably detecting this situation? One thought is to simply compare vs a sufficiently large value such that any offsets would be well within the range - perhaps the system reserved memory range (0 - 0x0000 FFFF). Any others are welcome. Thanks in advance.

Re: Preventing / Checking null 'this' pointer adjustment w/ Multiple Inheritance

Stuart Dootson8-Jan-09 13:39

Stuart Dootson

8-Jan-09 13:39

I suspect any this value below the standard start address for an EXE (0x400000, IIRC) is suspect.

BTW - what's the rationale for allowing NULL this pointers in this case? That sounds like something you'd prefer to avoid if at all possible...

Re: Preventing / Checking null 'this' pointer adjustment w/ Multiple Inheritance

D. Miller9-Jan-09 1:47

D. Miller

9-Jan-09 1:47

Thanks for the suggestion.

We have a large and complex set of classes which are frequently built using composition and a variety of design patterns. One of the things we're looking for is essentially C#'s is operator only customized to our types. Like the is operator, we'd like to be able to handle NULLs. It's not a hard requirement, but it makes use of the new functionality simpler and more straightforward. Smile | :)

Re: Preventing / Checking null 'this' pointer adjustment w/ Multiple Inheritance

Stuart Dootson9-Jan-09 2:20

Stuart Dootson

9-Jan-09 2:20

How about dynamic_cast?

if (dynamic_cast<basetype*>(SomePointer)) { /* we know that SomePointer is castable to BaseType */ }

Consider this code:

#include <iostream>

class Base1
{
public:
   virtual DoSomething1() const { std::cout << "Base1::DoSomething1 @ " << (int*)(this) << "\n"; }
};

class Base2
{
public:
   virtual DoSomething2() const { std::cout << "Base2::DoSomething2 @ " << (int*)(this) << "\n"; }
};

class Base3
{
public:
   virtual DoSomething3() const { std::cout << "Base3::DoSomething3 @ " << (int*)(this) << "\n"; }
};

class Derived : public Base1, public Base2
{
public:
   virtual DoSomething1() const { std::cout << "Derived::DoSomething1 @ " << (int*)(this) << "\n"; }
   virtual DoSomething2() const { std::cout << "Derived::DoSomething2 @ " << (int*)(this) << "\n"; }
};

int main(int, char**)
{
   Derived d;
   
   std::cout << "d @ " << (int*)(&d) << std::endl;
   
   std::cout << "dynamic_cast<Base1*>(&d) == " << dynamic_cast<Base1*>(&d) << std::endl;
   std::cout << "dynamic_cast<Base2*>(&d) == " << dynamic_cast<Base2*>(&d) << std::endl;
   std::cout << "dynamic_cast<Base3*>(&d) == " << dynamic_cast<Base3*>(&d) << std::endl;
   std::cout << "dynamic_cast<Base1*>(0) == " << dynamic_cast<Base1*>((Derived*)0) << std::endl;
   std::cout << "dynamic_cast<Base2*>(0) == " << dynamic_cast<Base2*>((Derived*)0) << std::endl;
   std::cout << "dynamic_cast<Base3*>(0) == " << dynamic_cast<Base3*>((Derived*)0) << std::endl;
   return 0;
}

We get this output:

d @ 0012FEDC
dynamic_cast<Base1*>(&d) == 0012FEDC
dynamic_cast<Base2*>(&d) == 0012FEE0
dynamic_cast<Base3*>(&d) == 00000000
dynamic_cast<Base1*>(0) == 00000000
dynamic_cast<Base2*>(0) == 00000000
dynamic_cast<Base3*>(0) == 00000000

So dynamic_cast indicates inheritance relationships with a NULL and will also detect null 'this' pointers properly.

Overflowing the Windows’s message Queue

BobInNJ8-Jan-09 7:21

BobInNJ

8-Jan-09 7:21

I am currently writing an application using C++ and MFC. It has three threads. One is for the GUI interface and the other two (worker threads) do the same simulation many times. When one of the worker threads completes a simulation, it sends a message back to GUI thread, via SendMessage.

I am counting the number of messages that I am sending and the number of messages that the GUI thread is sending, and they are not the same. When I put a sleep statement in the worker thread, the problem goes away. I am thinking that I am overflowing the window’s message queue. Is there a way to verify this or to find out how many messages are in the queue at a given time? I am also wondering how big the queue is. I am using this message to return results. I am starting to think this was a bad design decision. Please comment.

Thanks

Bob

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.