Please Help me, Excel Automation with MFC - C / C++ / MFC Discussion Boards

Jim Crafton24-Apr-05 8:57

24-Apr-05 8:57

I am trying to get the Text Object Model interfaces to work, but it seems that some of the functions simply do not work right.
According to the docs the ITextRange interface has a method called ITextRange::GetPoint() which, supposedly, will return the x,y coordinates of the range. You can specify a flag that is made of a series of bit flags that tell the function what the coords are for (the start or end) and whether you want the top, bottom, left/right, or baseline, center.
However no matter what you send in, the fucntion always returns E_FAIL as a HRESULT value. Does anyone have any experience using these API's? I'd love to be able to get this to work.

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Structions in Windows

Grahamfff24-Apr-05 8:52

Grahamfff

24-Apr-05 8:52

I have a series of structures overlayed with a buffer (fields and buffer of a message). This is in shared memory
Can someone tell me why the first method I use to set fields in a message do not work correctly.
Setting the time tag causes the year data to be wrong - data seems to be 8 bytes wide, even if you cast it to unsigned short.

// Each bit in the 64 byte message is defined in the structure (even spares etc)<br />
typedef struct{<br />
	unsigned long	Msg001_02_01_spare1_w01	:	2;<br />
	unsigned long	Msg001_02_01_msg_code_valid	:	1;<br />
	unsigned long	Msg001_02_01_msg_status	:	1;<br />
	unsigned long	Msg001_02_01_spare2_w01	:	4;<br />
	unsigned long	Msg001_02_01_spare3_w01	:	8;<br />
	unsigned short	Msg001_02_02_time_time_tag;<br />
	unsigned long	Msg001_02_03_year_1000_s	:	4;<br />
	unsigned long	Msg001_02_03_year_100_s	:	4;<br />
	unsigned long	Msg001_02_03_year_10_s	:	4;<br />
	unsigned long	Msg001_02_03_year_1_s	:	4;<br />
	unsigned long	Msg001_02_04_day_10_s	:	4;<br />
	unsigned long	Msg001_02_04_day_1_s	:	4;<br />
	unsigned long	Msg001_02_04_month_10_s	:	4;<br />
	unsigned long	Msg001_02_04_month_1_s	:	4;<br />
	unsigned long	Msg001_02_05_hour_10s	:	4;<br />
	unsigned long	Msg001_02_05_hour_1s	:	4;<br />
	unsigned long	Msg001_02_05_minute_10s	:	4;<br />
	unsigned long	Msg001_02_05_minute_1s	:	4;<br />
	unsigned long	Msg001_02_06_second_10s	:	4;<br />
	unsigned long	Msg001_02_06_second_1s	:	4;<br />
	unsigned long	Msg001_02_06_second_0_1s	:	4;<br />
	unsigned long	Msg001_02_06_second_0_01s	:	4;<br />
}Msg001_02;<br />
<br />
struct TSharedMemory {<br />
	// Form a union between the message structure and a buffer<br />
	union<br />
	{<br />
	    Msg001_02    	     fields;	// Fields in message<br />
	    unsigned short     buffer[32];	// Message buffer use in the Send/Recv etc<br />
	}Msg001_02;<br />
<br />
	etc ...<br />
};<br />
<br />
TSharedMemory	*g_pRigMem;		// Pointer to shared memory object<br />
<br />
		etc ..

If I use the following code to set the time tag it affects the year data:-

g_pRigMem->Msg001_02.fields.Msg001_02_02_time_time_tag = (unsigned short)timeMilseconds;

Even the following does the same:-

g_pRigMem->Msg001_02.buffer[1] = (unsigned short)timeMilseconds;

also the following code seems to do the same for fields in the next word?

g_pRigMem->Msg001_02.fields.Msg001_02_03_year_1000_s = year1000s;<br />
g_pRigMem->Msg001_02.fields.Msg001_02_03_year_100_s = year100s;<br />
g_pRigMem->Msg001_02.fields.Msg001_02_03_year_10_s = year10s;<br />
g_pRigMem->Msg001_02.fields.Msg001_02_03_year_1_s = year1s;

If however I set the void* to the location of the data in the shared memory and use the following code it works OK

// Set the void pointer up (fieldptr)<br />
<br />
if(m_sFieldType == "unsigned short")<br />
{<br />
	*(unsigned short *) fieldPtr = (unsigned short)(timeMilseconds);<br />
}

and for bit fields:-

// Set up the pointer to the byte that holds the field first<br />
<br />
*(char *) fieldPtr = (char)(bitField);

This sets the data OK and the years data is OK.

Can someone explain why the first method causes the problem.

Many thanks,

Graham.

grahamfff

Re: Structions in Windows

PJ Arends24-Apr-05 9:18

PJ Arends

24-Apr-05 9:18

Grahamfff wrote:
unsigned long Msg001_02_01_spare3_w01 : 8;
unsigned short Msg001_02_02_time_time_tag;
unsigned long Msg001_02_03_year_1000_s : 4;

I would make the time tag the same format as the rest

unsigned long Msg001_02_02_time_time_tag : 16;

Maybe also pack the structure and union to 1 byte boundaries using #pragma pack(1). You could be running into alignment problems.

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Compression

_Jackie24-Apr-05 8:16

_Jackie

24-Apr-05 8:16

Hi, i need for my final project to make a software that compress file, but i don't know where to start Confused | :confused:

, if someone know something about this, pls help me, i need it.

thanks
Jackie. Big Grin | :-D

Re: Compression

John M. Drescher24-Apr-05 9:20

John M. Drescher

24-Apr-05 9:20

You need to start by figuring out what algorithm you want/need to use. Huffman, LZW ... Then you can search this site for examples. Then if you do not find what you need there is always google.

John

Re: Compression

PJ Arends24-Apr-05 9:21

PJ Arends

24-Apr-05 9:21

http://www.google.ca/search?hl=en&q=compression+cpp+site%3Acodeproject.com&btnG=Search&meta=[^]

"You're obviously a superstar." - Christian Graus about me - 12 Feb '03

"Obviously ??? You're definitely a superstar!!!" mYkel - 21 Jun '04

Within you lies the power for good - Use it!

Honoured as one of The Most Helpful Members of 2004

vc++ progamming for multimedia

ahmadmz24-Apr-05 7:35

ahmadmz

24-Apr-05 7:35

why we use vc++ to programing multimedia player
WTF | :WTF:

Please Help me, Excel Automation with MFC

lee kyu sub24-Apr-05 6:27

lee kyu sub

24-Apr-05 6:27

(VC6.0, Excel 2000)

Range range;
Borders borders;
range = sheet.GetRange(COleVariant("A1"), COleVariant("L6"));
borders = range.GetBorders();
borders.SetLineStyle(COleVariant((short)1));

This sample is applied to all cells ..

but I want only outline

plese help me.... I want reference source...

help me about Explorer-like program

NPDemon24-Apr-05 5:59

NPDemon

24-Apr-05 5:59

i want to program a dialog-based program,which contains a CListCtrl ,i want the CListCtrl to act like MS ExPlorer
but i don't know how to do it.

someone can tell me how to do it ,or tell me this is about what subject,best some relative articles ?

thanks

Re: help me about Explorer-like program

Ravi Bhavnani24-Apr-05 7:40

Ravi Bhavnani

24-Apr-05 7:40

See this[^] article.

/ravi

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Re: help me about Explorer-like program

NPDemon29-Apr-05 8:45

NPDemon

29-Apr-05 8:45

thanks upper

CString to binary

Lampros Giampouras24-Apr-05 5:20

Lampros Giampouras

24-Apr-05 5:20

I need to convert CString to binary and back. Does anyone know how?

Re: CString to binary

Ravi Bhavnani24-Apr-05 7:43

Ravi Bhavnani

24-Apr-05 7:43

What do you mean by "convert a CString to binary and back"?

/ravi

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Re: CString to binary

Lampros Giampouras24-Apr-05 9:27

Lampros Giampouras

24-Apr-05 9:27

CString: "Hello there" -> Binary: 1001110100101001.....
Smile | :)

I want to take each bit of that and put it in some image pixels for watermarking..

API Hooking question

olinn24-Apr-05 4:40

olinn

24-Apr-05 4:40

I want to hook some APIs. I has some questions when reading the article on codeproject website
http://www.codeproject.com/dll/apihijack.asp[^]

The sample in that article is to hook DirectDrawCreate function in DDRAW.dll, and change it with his own function in his own dll. I am just wondering why he set a global WH_CBT hook but with a callback function doing nothing (just do CallNextHookEx).

When I made some mouse hook or keyborad hook, I always did my work in the callback function, so I am confused that why we changed when do API hooking.

Thanks in advance!

How to SetDocumentHtml to HtmlEditCtrl

Tcpip200524-Apr-05 2:16

Tcpip2005

24-Apr-05 2:16

I used SetDocumentHtml to set my html code to the HtmlEditCtrl.
but It's no use.
Why was this happen?
How can I set html document to htmleditctrl??
Thank you very much!!!

Re: How to SetDocumentHtml to HtmlEditCtrl

22491724-Apr-05 4:34

224917

24-Apr-05 4:34

I feel you got to check CHtmlEditCtrlBase::SetDesignMode().

suhredayan
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Re: How to SetDocumentHtml to HtmlEditCtrl

Tcpip200524-Apr-05 23:42

Tcpip2005

24-Apr-05 23:42

Thank you!

Yes , I got a way to do this.
But,when I set html document for htmleditctrl,the resources(jpg,gif etc.) can't be showed .
Only text can be showed.

what's the matter??

structs and arrays

Truby4224-Apr-05 1:34

Truby42

24-Apr-05 1:34

I am a beginner taking my first programming class so answer at my level I have a struct
struct stats
{
int score;
int frequency;
}
stats gradebook[10];
now I want to read this info into the array of structs from a file called scores.txt how do I set up the function getscores and read in from the file Frown | :(

Re: structs and arrays

Ravi Bhavnani24-Apr-05 7:42

Ravi Bhavnani

24-Apr-05 7:42

See fopen(), fscanf() and fclose().

/ravi

My new year's resolution: 2048 x 1536
Home | Articles | Freeware | Music
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some function's help

smarty1223-Apr-05 23:39

smarty12

23-Apr-05 23:39

hello friends
i want to use some functions in my project please tell me from which functions i can get these value in LAN
cpu usage
available network bandwidth
network packets per second
memory usage
thanx
bye

FAST obect administration?

ThinkingPrometheus23-Apr-05 23:33

ThinkingPrometheus

23-Apr-05 23:33

hiho@ll

a question to all hardcore (windows) C++ hackers

if i have a few thousand (or many many more) objects, how could i have access to each object indivdually and (extremly) very fast?

i thought about using collections but i thinkg that it would be very slow if there are a many 10000 objects which i need to access
and how i have access to all of them without waiting for a thread to finish
i mean how could i synchronize the access to those objects if i'm running many threads, but i don't want a thread to wait for it's information because it would slow down?

thx@ll

Re: FAST obect administration?

PatLeCat24-Apr-05 0:23

PatLeCat

24-Apr-05 0:23

Use hash! It's as short as that. There are many classes available, from Micro$oft, Boost, etc.. Those are fast enough to handle hundreds of thousands entries.

Greetz, pat le hashed :->

Re: FAST obect administration?

Anonymous24-Apr-05 6:06

Anonymous

24-Apr-05 6:06

thx

i think i'll use it

threading/vector capability of VC++?

ThinkingPrometheus23-Apr-05 23:23

ThinkingPrometheus

23-Apr-05 23:23

hiho@ll

i'm thinking about a project, which would need a few thousands threads running and every thread should be accessible everytime (i think about a vector or something else in the core)

so my question, what is the maximum number of threads/Objects windows/VC can produce/handle?
am i right that, it should be depeding on how much RAM i have and not on somthing different?

thx@ll

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