Resources - C / C++ / MFC Discussion Boards

Anttt4-Oct-04 6:39

4-Oct-04 6:39

Hai,
I'm working on win32 vc++.I want to get the mouse coordinates when I click it.
I am wondering how can I do this without using the WM_LBUTTONDOWN... Confused | :confused:

Do anyone have some ideas...
Thanks a lot in advance...

Re: win32 VC++

Greg Ellis4-Oct-04 8:21

Greg Ellis

4-Oct-04 8:21

Try
BOOL GetCursorPos(LPPOINT lpPoint);

Cheers,
Greg Ellis

Re: win32 VC++

cmk4-Oct-04 20:42

cmk

4-Oct-04 20:42

Anttt wrote:
I want to get the mouse coordinates when I click it.
I am wondering how can I do this without using the WM_LBUTTONDOWN

Use WM_LBUTTONUP.
If you don't like that either then i have to ask how you expect to be notified of a mouse button event if you don't want to use the ones provided ?

The only other thing to do is install a hook e.g. SetWindowsHookEx(WH_MOUSE);

...cmk

Save the whales - collect the whole set

Re: win32 VC++

Niklas L4-Oct-04 22:18

Niklas L

4-Oct-04 22:18

Use GetAsyncKeyState() if you're not willing/able to use window messages to get notified when that happens. Be warned though that you might miss button clicks if you don't check frequently enough, since this function only returns a snapshot of the button state.

Re: win32 VC++

Niklas L4-Oct-04 22:21

Niklas L

4-Oct-04 22:21

...actually, after reading the documentation, it's possible to determine if the button was pressed since the last call to the function. In other words, it's not only a snapshot you'll get.

Hope that helps.

ActiveX control in MFC

Digambar Sawant4-Oct-04 6:04

Digambar Sawant

4-Oct-04 6:04

Hello,
I have 3rd party Control(.OCX) which is running in VB without any problem.
Now i m using it in MFC. Class Wizard creates wrapper classes for it automatically. Now Problem is when i call a method object.Add(BSTR *,VARIANT*);
i use CComBSTR and CComVariant classes for sending the parameters to this Method. When I run the "Application 0xC0000005: Access Violation" a very bad ERROR message get flashed.for the sake of info that OCX is mcbarmenuv102.ocx i got from MCUNHA's ActiveX 's.

Please Help Me.

Re: ActiveX control in MFC

BAIJUMAX4-Oct-04 6:19

BAIJUMAX

4-Oct-04 6:19

Hi,
There's No Problem With ActiveX.I believe U call The method With wrong data Type.

Try This
BSTR bstrYourstring
VARIANT vYourVariant

object.Add(&bstrYourstring,&vYourVariant)

by
baijumax

Resources

Max Santos4-Oct-04 5:42

Max Santos

4-Oct-04 5:42

is there a way of do this:

example:

#define IDB_ABOUT 150

Have a string with "IDB_ABOUT" and get a int with value 150 ??

Re: Resources

Maximilien4-Oct-04 6:12

Maximilien

4-Oct-04 6:12

#define are replace at the preprocessor stage of compilation, so the IDB_ABOUT symbol will be lost to the number.

what exactly you want to do ?

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: Resources

Max Santos4-Oct-04 7:13

Max Santos

4-Oct-04 7:13

Maximilien wrote:
#define are replace at the preprocessor stage of compilation, so the IDB_ABOUT symbol will be lost to the number

yes, i know, but i was looking for a way to use the res: protocol of HTML using the IDB_... instead of the numbers

example:

#2 = Bitmap

istead of

Re: Resources

Max Santos4-Oct-04 7:27

Max Santos

4-Oct-04 7:27

don't boder yourself... its a stupid question anyway Big Grin | :-D

the soluction for this is probably harder than the use of numbers Big Grin | :-D

Re: Resources

Bob Stanneveld4-Oct-04 9:17

Bob Stanneveld

4-Oct-04 9:17

Hello,

You can use a map as an associative array to achieve what you want. Exemple:

<br />
std::map<std::string, int> IDThings;<br />
// assign values like this<br />
IDThings["IDB_ABOUT"] = 150; <br />
// retreive values<br />
int nValue = IDThings["IDB_ABOUT"];<br />

Hope this helps..

Multiply it by infinity and take it beyond eternity and you'll still have no idea about what I'm talking about.

Re: Resources

toxcct4-Oct-04 23:25

toxcct

4-Oct-04 23:25

what are the types the pair of you map is getting ????

TOXCCT >>> GEII power

Re: Resources

Bob Stanneveld5-Oct-04 7:59

Bob Stanneveld

5-Oct-04 7:59

The map is build from key value pairs. In your case the key would be a string and the value an integer declared like this: std::map<std::string, int>Resources;
Hope this helps

<small><i>
Multiply it by infinity and take it beyond eternity and you'll still have no idea about what I'm talking about.
</i></small>

It is authenticated domain user?

RadioShark4-Oct-04 5:19

RadioShark

4-Oct-04 5:19

Hi,

I have a token (hAccessToken) belonged to a current user:

<br />
::OpenThreadToken(::GetCurrentThread(), TOKEN_QUERY, TRUE, &hAccessToken));<br />

Is it possible to determine whether a user is authenticated in domain or not? How?

Sincerely Yours,
RadioShark

Re: It is authenticated domain user?

David Crow4-Oct-04 10:56

David Crow

4-Oct-04 10:56

RadioShark wrote:
Is it possible to determine whether a user is authenticated in domain or not?

Does LogonUser() help?

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

Re: It is authenticated domain user?

2249174-Oct-04 19:23

224917

4-Oct-04 19:23

GetTokenInformation()
then
LookupAccountSid()

There is no spoon.

mail

Non-Integer Spin Controls

sweep1234-Oct-04 4:57

sweep123

4-Oct-04 4:57

Is it possible to use a Spin Control, but instead of incrementing by an integer value (e.g. 1) increment the value in the Edit Box by say 0.1.

Any pointers please.

Re: Non-Integer Spin Controls

BlackDice4-Oct-04 6:35

BlackDice

4-Oct-04 6:35

don't autobuddy the control to an edit box. just put it with the text box and handle the spin control's events yourself.

[insert witty comment here]

bdiamond Sleepy | :zzz:

Compact memory vs. speed

Haakon S.4-Oct-04 4:00

Haakon S.

4-Oct-04 4:00

My desktop application (MFC) will at runtime establish five to ten dynamically created matrices. They will all be of the same size, N x N and be filled with double values. The value of N will vary from run to run, but normally be between 10 and 30.

Some features:

- All matrices are symmetrical
- The diagonal has entries 0.0
- At low values of N it will be 60-70% filled
- There will never be more than 200-300 entries different from 0.0
- Very frequently there will be simple access
- Occasionally there will be inversion and multilication

So, finally to my question. There is ample oportunity to compress memory, but at value of N would you sacrifice the speed of double x = MyMatrix[i][j]to the slower double x = MyMatrix(i,j) with some fancy function? With 512 mB or 1 GB RAM in todays PC's, is there any reason to bother about memory?

Regards Haakon.

A sure cure for seasickness is to sit under a tree.
Spike Milligan

Re: Compact memory vs. speed

Bob Stanneveld4-Oct-04 4:16

Bob Stanneveld

4-Oct-04 4:16

Hi,

I shouldn't bother about the memory for the following reasons:

- The size of your matrix in bytes will never exceed 4Kb. Therefore it'll fit in one page.

- If you access the block of memory frequently enough, windows won't put the page in virtual memory on the haddisk, leading to zero page faults and better performance.

- if your clients are not stuck on windows 95 machines, you'll be better off not compressing the memory..

Hope my opinion helps you decide what to do...

Multiply it by infinity and take it beyond eternity and you'll still have no idea about what I'm talking about.

Re: Compact memory vs. speed

Haakon S.4-Oct-04 8:52

Haakon S.

4-Oct-04 8:52

Thanks

Just what I wanted to hear. Makes my life easier in many ways.

Regards, Haakon S.

A sure cure for seasickness is to sit under a tree.
Spike Milligan

ToolBarControl Help!

Pazzuzu4-Oct-04 3:49

Pazzuzu

4-Oct-04 3:49

Hi Guys,

Iam trying to put some bitmap images using a toolbarcontrol into a dialog.

I have done it as follows:

CRect toolbarSize(20,20,100,50);
m_toolBarCtrl.Create(WS_CHILD|TBSTYLE_FLAT,toolbarSize,this,IDR_TOOLBAR1);
m_toolBarCtrl.AddBitmap(1,IDB_BITMAP2);
m_toolBarCtrl.AddBitmap(1,IDB_BITMAP3);

TBBUTTON tb[3];

// Index of new button image.
tb[0].iBitmap = 0;
// Setting button state
tb[0].fsState = TBSTATE_ENABLED;
// Setting button style
tb[0].fsStyle = TBSTYLE_BUTTON;
tb[0].dwData = 0;
tb[0].iString = NULL;

// Index of new button image.
tb[1].iBitmap = 1;
//Setting button state
tb[1].fsState = TBSTATE_ENABLED;
// Setting button style
tb[1].fsStyle = TBSTYLE_BUTTON;
tb[1].dwData = 0;
tb[1].iString = NULL;

m_toolBarCtrl.AddButtons(2,tb);
m_toolBarCtrl.ShowWindow(true);

The problem is in both of my buttons,I see only 1 image(ie: the image in "bitmap2").What should I do to see the other bitmap image in the other button.

I have each images in 2 different files(So I imported it into the resource editor as 2 bitmaps -IDB_BITMAP2& IDB_BITMAP3)

If I want to have my images in one bitmapResource(if thats the problem),What should I do ?

Mind that I have each image, which I want to displaye as .bmp file.(one image in 1 .bmp file).

Another thing is How can I see a tooltip for each button in the above code...

Any help is appreciated.....

Thanks.....

patches / auto updates

Muhammad Azam4-Oct-04 3:15

Muhammad Azam

4-Oct-04 3:15

hi how do we implement features such as auto updates (like in windows and MSN ) in our application. Also how does patches work?

To be very specific if i develop a program that can generate say 5 random numbers and has delivered to users, after some time if i want it to generate 10 random numbers instead of 5 then again i have to build it and give it to users. Is there any way that i just give a patch or some thing like that and it update my program or any other method for doing this

your valuabe comment are worthful for me
thanks in advance
regards

azam

Re: patches / auto updates

ThatsAlok4-Oct-04 3:35

ThatsAlok

4-Oct-04 3:35

look at this post
http://www.codeproject.com/script/comments/forums.asp?forumid=1647&mpp=50&select=939284#xx939284xx

-----------------------------
"I Think It Will Help"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk

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