Dialog Keyboard Events - C / C++ / MFC Discussion Boards

Re: Bits Fields - How to Use them

Antony M Kancidrowski11-Aug-04 2:03

Antony M Kancidrowski

11-Aug-04 2:03

Without combining the fields in the struct I can not see how you can do this.

e.g.

typedef struct{<br />
BYTE data1and2; <br />
BYTE data3and4;<br />
W05_PRICE w05_price;<br />
W07_NETCOST w07_netCost;<br />
W08_INDEX w08_index;<br />
}TEST1_10;

Downside is that will have to do the bit manipulation on data1and2 and data3and4 in order to get the appropriate 4bit values however. Though a couple of functions should be enough to get and set the values.

Ant.

I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)

Re: Bits Fields - How to Use them

David Crow11-Aug-04 5:25

David Crow

11-Aug-04 5:25

Contrast what you have with:

#pragma pack(1)
typedef struct
{
    unsigned data1 : 4; 
    unsigned data2 : 4;
    unsigned data3 : 4;
    unsigned data4 : 4;
    float data5;
    float data6;
    unsigned short data7;
} TEST1_10;
#pragma pack()

TEST1_10 message_data1;
int sizeStruct1 = sizeof(message_data1);

What is the value of sizeStruct1?

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: Bits Fields - How to Use them

sweep12311-Aug-04 6:12

sweep123

11-Aug-04 6:12

The size of the structure is 14 bytes.
I assume this is (8 for 2 floats + 2 for the short and 4 for the 4 bit fields)

I am after a size of 11 bytes.

Are they any settings that I have not made?

Re: Bits Fields - How to Use them

David Crow11-Aug-04 7:23

David Crow

11-Aug-04 7:23

You do know that sizeof() cannot be used on bit fields, don't you?

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: Bits Fields - How to Use them

sweep12311-Aug-04 21:58

sweep123

11-Aug-04 21:58

If I use the following code:-

typedef struct<br />
{ <br />
	unsigned short data1;<br />
//	unsigned data1 : 4;<br />
//	unsigned data2 : 4;<br />
//	unsigned data3 : 4;<br />
//	unsigned data4 : 4;<br />
	float data5;<br />
	float data6;<br />
	unsigned short data7;<br />
}TEST1_101;<br />
#pragma pack()<br />
TEST1_101 message_data1;<br />
int sizeStruct1 = sizeof(message_data1

);

I get size = 12 bytes, which I understand (8 for floats + 2 x 2 for shorts = 12 bytes. But why dont I get 12 for the following:-

typedef struct<br />
{ <br />
	unsigned data1 : 4;<br />
	unsigned data2 : 4;<br />
	unsigned data3 : 4;<br />
	unsigned data4 : 4;<br />
	float data5;<br />
	float data6;<br />
	unsigned short data7;<br />
}TEST1_101;<br />
#pragma pack()<br />
TEST1_101 message_data1;<br />
int sizeStruct1 = sizeof(message_data1);

Re: Bits Fields - How to Use them

David Crow12-Aug-04 2:58

David Crow

12-Aug-04 2:58

sweep123 wrote:
But why dont I get 12 for the following:-

I hinted at the fact that you cannot use sizeof() with bit fields. Did you miss that earlier?

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: Bits Fields - How to Use them

sweep12312-Aug-04 4:17

sweep123

12-Aug-04 4:17

OK, yes I saw your post that stated that, but removed the bit fields and tried a few other things and then put back the bit fields.

I think the overlay works with the union, but the fact that a bug in my program and the sizeof() problem with bitfields led to confusion.

Thanks,

Dialog Keyboard Events

Joel Holdsworth10-Aug-04 22:14

Joel Holdsworth

10-Aug-04 22:14

Hi, I'm having a problem with a dialog. I need my dialog box to recieve/intercept all keyboard events that go on inside, but I'm getting problems where only the controls are reciving the keyboard events. Presumably only the window with the focus can ever recieve keyboard message. My dialog simply does not recieive any OnChar, OnKeyDown, or OnSysChar events. So I implemented OnKillFocus in the dialog like so...

void CMyDialog::OnKillFocus(CWnd* pNewWnd) 
{
	CWnd::OnKillFocus(pNewWnd);

	// The focus must be maintained so that we always recieve keyboard input
	SetFocus();
}

However this seems to make all my buttons totally unclickable! Does anyone have a solution to this at all?

Joel Holdsworth

Re: Dialog Keyboard Events

Johan Rosengren11-Aug-04 6:44

Johan Rosengren

11-Aug-04 6:44

You might want to try overriding PreTranslateMessage for your dialog.

Visual C++ .net and Word 2003 automation

tiziacaia10-Aug-04 21:57

tiziacaia

10-Aug-04 21:57

I want write a doc file using Visual c++. I found a lot of microsoft examples but don't work.
Somebody has a project that work that i can use als examples?

Thanks a lot

Re: Visual C++ .net and Word 2003 automation

Steve Thresher11-Aug-04 3:04

Steve Thresher

11-Aug-04 3:04

Try this Microsoft article[^]

Systems AXIS Ltd - Software for Business ...

Re: Visual C++ .net and Word 2003 automation

tiziacaia11-Aug-04 4:12

tiziacaia

11-Aug-04 4:12

Thaks a lot but there aren't examples for office 2003.
My problem is that when i select the wrapped class, the file msword*.h and msword*.cpp aren't created but in the project i find only files for single classes that i selected (Capplication.h,CDocments.h,....)
Understand you my problem? Thanks a lot and i hope you understand my english Unsure | :~

Re: Visual C++ .net and Word 2003 automation

Steve Thresher11-Aug-04 9:32

Steve Thresher

11-Aug-04 9:32

Can you give me more details on what you are attempting to do? Are you trying to use a framework such as MFC or just plain Win32 API? Are you trying to use the #import statement?

Systems AXIS Ltd - Software for Business ...

Re: Visual C++ .net and Word 2003 automation

tiziacaia11-Aug-04 18:06

tiziacaia

11-Aug-04 18:06

I'm using MFC, and i tryed to use the #import but don't work.
I thing the biggest problem is my office version that is 2003. When i add the wrapped class (type library), there isn't file like msword*.h in my project but only a lot of new class for word (for example CApplication.h, CDocuments.h, CDocument0.h,......).
Undestand you my problem?
thanks

Re: Visual C++ .net and Word 2003 automation

Steve Thresher12-Aug-04 4:36

Steve Thresher

12-Aug-04 4:36

The article I suggested to you contains sample code to be used with visual studio 6 and I'm assuming you have VS.NET 2002 or 2003. You can still use the sample code with just some minor modifications.

To start with the 'Add Class' wizard generates a header file for each class rather than one file for the whole type library. This means you need to add an include statement for each class you use.

Next the class names have changed. What was _Application in Word2000 is now CApplication in Word2003 likewise _Documents has changed to CDocuments and _Document has changed to CDocument0. If you look at the header file names the class wizard adds to your project you can work it out.

Finally the function names have changed. For instance GetActiveDocument() has changed to get_ActiveDocument() and SetVisible() has changed to put_Visible(). In general the functions are now called get_'property name' to retrieve the value of a property or put_'property name' to set the value of a property.

If you would like a very basic VS.NET 2003 MFC dialog project that generates a word document I would be happy to send one to you.

Systems AXIS Ltd - Software for Business ...

Re: Visual C++ .net and Word 2003 automation

tiziacaia16-Aug-04 8:20

tiziacaia

16-Aug-04 8:20

hallo!
very very thanks for your answer!
i don't have now a lot of time but tomorrow i try!
if you can send me your project files it's for me very good!! (my email address is tiziacaia@hotmail.com)
thank a lot another time!

Re: Visual C++ .net and Word 2003 automation

tiziacaia18-Aug-04 7:17

tiziacaia

18-Aug-04 7:17

I thanks a lot for your answer!
I make what do you say and now i haven't error when i build my project but when the document is opening i get an error but the message don't help me to understand this error.
If you can send me your project i'm very happy!

thanks a lot another time and i'm sorry for my english!

bye

Re: Visual C++ .net and Word 2003 automation

Steve Thresher18-Aug-04 11:00

Steve Thresher

18-Aug-04 11:00

I sent you the project a couple of days ago to the address you specified. Let me know if you need it sent to a different address. Alternatively if you have a small test project you would like me look at you can mail it to (steve . thresher @ ukonline . co . uk) remove the brakets and blanks.

Systems AXIS Ltd - Software for Business ...

Re: Visual C++ .net and Word 2003 automation

tiziacaia18-Aug-04 18:27

tiziacaia

18-Aug-04 18:27

i see now your mail for example project but there isn't atachment!
if you can try to resend me i thanks you a lot.

how to retrieve llist data from CListCtrl::OnNMRclick(NMHDR *pNMHDR, LRESULT *pResult)

zecodela10-Aug-04 20:50

zecodela

10-Aug-04 20:50

hi, i want to know how i can get back the data from click event of the list control?
i received a these 2 pointers, (NMHDR *pNMHDR, LRESULT *pResult). i think i need to have a typecast to get back my data.
how can i get the position i click on the list so that i can get back my data from CListCtrl::GetItem() or CListCtrl::GetItemData()?

any help?
thanks?

Re: how to retrieve llist data from CListCtrl::OnNMRclick(NMHDR *pNMHDR, LRESULT *pResult)

Aamir Butt10-Aug-04 21:36

Aamir Butt

10-Aug-04 21:36

You have to call HitTest() function to check which item of List Control is hit. After getting Handle to that item, you can do whatever you want.

You can find Articles here on CodeProject for this. Sorry, I am too tired to search for those. You have to do it yourself. Sleepy | :zzz:

Imagine that you are creating a fabric of human destiny with the object of making men happy in the end, giving them peace and rest at last, but that it was essential and inevitable to torture to death only one tiny creature..and to found that edifice on its unavenged tears, would you consent to be the architect on those conditions? Tell me, and tell me the truth!

-Fyodor Dostoevsky, The Brothers Karamazov

Re: how to retrieve llist data from CListCtrl::OnNMRclick(NMHDR *pNMHDR, LRESULT *pResult)

Dudi Avramov10-Aug-04 22:48

Dudi Avramov

10-Aug-04 22:48

Try casting to LPNMLISTVIEW:
LPNMLISTVIEW p = (LPNMLISTVIEW) pNMHDR;

Re: how to retrieve llist data from CListCtrl::OnNMRclick(NMHDR *pNMHDR, LRESULT *pResult)

zecodela11-Aug-04 0:32

zecodela

11-Aug-04 0:32

oh! i solved the problem. thank you very much!
actually, how can u get this?
i can't get any hints from MSDN library.

public data members

elephantstar10-Aug-04 20:34

elephantstar

10-Aug-04 20:34

Hi there,

I know that it's bad coding practice to have public data members but what if you have a private struct containing about 10 fields. If I create a public struct containing the exact same fields and set each field to something, can I pass that public struct as a parameter to the mutator method to set the private data members to?

Does this fall under poor coding practices category or is it an exception to the rule?

Thanks!

Is User Active ?

Amarelia10-Aug-04 19:47

Amarelia

10-Aug-04 19:47

Hi I want to know if the entered user is active or not ? I am developing this application on Windows2000 Professional. Using Win32 Console Based Application.

Is there any function which on providing UserName, Password and Domain tells us that given User is Active or not ?

Plz...Can't u do this for me ?

Thanking You

Anonymous

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