|
Ok.. Now I understand. 
Thanks...
---
With best regards,
A Manchester United Fan
The Genius of a true fool is that he can mess up a foolproof plan!
|
|
|
|
|
So, will there be any performance loss if I use the property Caption instead of the PutCaption or GetCaption call?
---
With best regards,
A Manchester United Fan
The Genius of a true fool is that he can mess up a foolproof plan!
|
|
|
|
|
There shouldn’t be a difference.
Steve
|
|
|
|
|
|
Thanks... 
Hey.. I got a small problem...
Lets say I add a CommandBar to the list of CommandBars by
_newCmdBar = _cmdBars->Add( _vName, _vPosition, _vEmpty, _vTrue ) ;
where
_newCmdBar is of the type CComPtr<Office::CommandBar> _newCmdBar ;
Now, how do I check if the above function call has been successful? I tried
if( NULL == _newCmdBar ) but it doesn't compile.
Can you help?
---
With best regards,
A Manchester United Fan
The Genius of a true fool is that he can mess up a foolproof plan!
|
|
|
|
|
|
I hope this is the right place to ask this, but I have been looking through the new version of the Rotor source code, and it seems that the C# compiler uses Com objects internally, and that the interface's are compiled into a static library, I just wanted to know if it is possible to compile the interfaces into a static library or if I have the wrong idea?
|
|
|
|
|
The following code is written in OncLose Function.
void CMainFrame::OnClose()
{
m_pFMApplicationv7->Release();
m_pFMApplicationv7 = NULL;
CoUninitialize();
CFrameWnd::OnClose();
}
m_pFMApplicationv7 is a Interface Pointer of COM Object which is created using CoCreateInstance.The COM server is written in .NET-C#.Client is MFC.
When I close the application I got the following excepton.
Unhandled Exception in CFDlink.exe (KERNEL32.DLL):0XE0434F4D) : (NO NAME)
Kindly help me to resolve this issue.
Regards
Lavate Mallikarjun Avanna
Flowmaster India Pvt. Ltd.
|
|
|
|
|
I Googled the number and found no shortage of answers.
Steve
|
|
|
|
|
i don't understand the problem exactly..
but what i assume..framewindow is a part of application and is at less level in the hierarchy..
so when u r releasing application pointer.. CFrameWnd::OnClose() doesn't make much sense practically..try doing this before..u release application pointer...
may be the problem is bcoz of that.. otheriwise i need some more info..>>>
cheers
vibhash
bangalore
|
|
|
|
|
Hi ..i am currently working on one of my Vb project and sicne i am not so proffesional with programming i need little help..Well my quesiton is that need to solve some equations numerically adn since as far as i know in vb we are not able to perform numerical calculations such as those Runge-Kutta,Newton Raphson etc.( here if i am wrong please correct me may be vb can handle such problems !!!) so in my problem user is asked to input some numbers so i want to build such kind of code in matlab and THEN here my question comes how can i translate my matlab code into Vb forms and after translation does this code again ask the user required input datas as it does in matlab...if yes can anyone help me about this problem.Thank you very much i hope my question is clear to all...
i look forward to hearing from you
enversun
|
|
|
|
|
i thnik matlab has GUI toolbox exactly like VB(i mena textbook,dialog ,etc.) . So why do want it to convert it to VB forms?? tell me if I cudn't understand U??
cheers
vibhash
|
|
|
|
|
Yes i know but started to build my project in Vb environment and now since some numerical techniques i have to use and cant do this by Vb by using matlab i want to solve those numerical problems and eport them from matlab to my Vb project that i have already build in Vb..So since the time is short i cant do all again by matlab GUI.. ....
My second question is that is there a way to export matlab GUI to Vb as a Vb new form maybe it is possible..
or does it work if i copy and paste my symbollic formualtions ( such as numerical integrations..differantiations etc..) solved by matlab in to VB code page.. may be this is the alternative way but does it work?
|
|
|
|
|
I will give u a wild advice which you may not like but worked for me many of the time.. just for the sake of completing your project..
1)You can create a output file based on MATLAB numerical datas and try to read that file In VB..only one basic problem.. if ur num datas are too dynamic.. ur refresh rate thru VB code should be fast enough to give u the desired behaviour.. may be u have the compromise in performnace but still works..
2) i am not sure but i do think there will be OCX controls provided by MATLAB (u can serach in VB toolbars) to import its GUI in ur VB forms.. in that case i think ur life will be pretty easy but still u have to juggle ur head to understand the new APIs.. if u can take this much pain.. the i think it will perfectly okay..it will help you in future projects even..
3) copying ur formualtions is not a gud ideas as VB will trim ur calcualtions datas to a large extent and u will get roudoff erro.s so better leave these calculation part to MATLAB (they have much sophisticated algorithms to support this).. but if u think that u can work without much accuracy.. u can apply this technique too..but again not advisable..
cheers
vibhash
Bangalore,INDIA
|
|
|
|
|
while i was trying the 3rd one you mentioned i have come accross a new problem as i mentioned below
dSdFF=(sqrt((2+4*r)*(1+r)/(2*r+1))+tan(FF))*(dKhotFF)+(2*RR*sin(FF)*tan(FF)+h*(sec(FF))^2+2*RR*cos(FF)+2*RR*sqrt((2+4*r)*(1+r)/(2*r+1))*sin(FF))*Khot/h
dSdFF =
-2*(((2+4*r)*(1+r)/(1+2*r))^(1/2)+tan(FF))*((4/3+2/3*r)/(2+4*r))^(1/2)*A1*(B1+((4/3+2/3*r)*(1+r)/(1+2*r))^(1/2)*log(H1/(H2+2*RR*(1-cos(FF)))))^n*n*((4/3+2/3*r)*(1+r)/(1+2*r))^(1/2)/(H2+2*RR*(1-cos(FF)))*RR*sin(FF)/(B1+((4/3+2/3*r)*(1+r)/(1+2*r))^(1/2)*log(H1/(H2+2*RR*(1-cos(FF)))))+(2*RR*sin(FF)*tan(FF)+(H2+2*RR*(1-cos(FF)))*sec(FF)^2+2*RR*cos(FF)+2*RR*((2+4*r)*(1+r)/(1+2*r))^(1/2)*sin(FF))*((4/3+2/3*r)/(2+4*r))^(1/2)*(A1*(B1+((4/3+2/3*r)*(1+r)/(1+2*r))^(1/2)*log(H1/(H2+2*RR*(1-cos(FF)))))^n-A2*e^m)/(H2+2*RR*(1-cos(FF)))
>> intdSdFF=int(dSdFF,FF)
Warning: Explicit integral could not be found.
> In C:\MATLAB6p5\toolbox\symbolic\@sym\int.m at line 58
i have a differantial equ'n such as dS/dFF and i want to integrate w.r.t FF to get S function but it does nt work gave error as above.. do you have an idea ..please help 
|
|
|
|
|
ya thta's true.. it is not always possible for the matlab kernel to find the explicit integral..
there can be many posiblities..
1) try subsituting the values of the constants(like r,h...) used in your function.
2) or you have to provide range of the integration like int(f,start,end)
3) if still it doens't work , may be you have to go for numerical integration.. try quad.. or simply double(int(f,start,end))..(internally double does the numerical integration for you..)
it's possibly that if you provide the same function in MATCAD/mathematica , you will get a solution as it internally does the numeraical integration(ofcourse range has to be provided..)
cheers
vibhash
B'lore,INDIA
|
|
|
|
|
hi
firstly i really thank you for your valuable suggestions and comment but i still could nt solved that equation i wonder if you help me simultaneously from net...if you ok for you we can get contact each other ..
k=g(x)
i have (dS/dx)=f(S,x,dk/dx) type equation and if you have experinced to solve such problemms please help me
my aim is to find P=int(S,x)....
|
|
|
|
|
I have understood the problem.. i think you cudn't understand my argument..
I will try explaining again..
Suppose f(x) = (1/2 + cos(x) )
int(f,x) = x/2 +sin(x) .. it has a indefinite integral solution..
but say if f(x) = sqrt(1/3 + log(sin(x^(1/3)))
int(f,x) will show error .. as it is not possible for the integral to solve indefinitely.
In this case , we have to go to numerical integration..
so, we have to try double(int(f,x,lb,ub))
double --> for numerical integration
lb,ub - >lower and upper bounds..
in this case you will get a definite solution..
I think your function is also too complex which can't be solved definitely.. so you have to numerical integration.. there is no other choice.. can you tell me the upper and lower bounds in which you want to integrate the functions??? may be i can help you.. i could i have given you the results but currently i don't have MATLAB installed in my PC...
i think i am clear now..
cheers
vibhash
B'lore, INDIA
|
|
|
|
|
hi ;
yes i understood you..and you are right there is no other choice and i have to make numerical integraiton.Well since this problem will be yielded outputs from Vb environment according to the user inputs i have to make those numerical calcualtions in Vb environment ..i wsih i could show those function but how maybe i will take the picutre of them from my web cam and show you maybe i can explain it better...you know i know i can apply some numerical techniques to some simple functions but i had never experinced with such hard function so it challenges me any way ..well please correct me where i am wrong, if i use Runge Kutta, one of numerical integration technique,to solve dS/dx which has initial S at x=0 (lower bound) (S initial is known) by selecting step size h =0.1,to the final value of x=10 (upper bound) i get 100 S values....now i want to use this values in another integration (P=int(S,x)) at this time to obtain another P value which depends on those S values
so at the end i have S1 S2 .....S100 (100 S values) and x1 x2 ....(incrementing with h =0.1) as 0 0.1 0.2 0.3......10 (100 x values)
how can make nurmical integration with above values to obtain final P value...
i hope you understand me .i can really understand you clearly...i hope i will solve this problem with your valuable help..
and if you want i can send you a picture of functions taken by web cam this can help you to understand my question well ...
last quesiton does it seems that i cane make those calculations with Vb ?
thanks in advance..
|
|
|
|
|
i think i understand u little.. but still i would like to have some snapshots and clear picture from beginning.. that would help me to understand better..
|
|
|
|
|
hi
i wanted to add this
as i looked from the numerical integration book while
x=[x1 x2 x3 ..etc]
and
S=[S1 S2 S3 .....]
matlab can take integration with trapz(x,S) does it give accurate results
|
|
|
|
|
trapz gives the numerical result using trapezoidal method.. in your case. if s are functions of x.. it will be give you a range of values.. is this what you are looking for??
exmaple
x = [0:pi/100:pi] what is essentially ( 0,pi/100,2pi/100,.....pi)
y = sin(x)
trapz(x,y) integrate y wrt x ang gives u a single value..but if y itself is aset of numbers.. i think output itself will be a set og umbers.. i think u can check this with a small example..
Are you trying to evaluate some double integration kind of thing???
|
|
|
|
|
yes excatly what you mentioned is what i wanto explain ..but this step will be the final step to obtain single value after integration y (in my case S) w.r.t x (in my case FF) and that value will be the P value which i want to get.
But before following such approach i must get S values from that long, complex dS/dFF derivation..i have sent you equn i hope you will better understand..
angle phi (FF) in snapshot is defined as 0
|
|
|
|
|
I am trying to enable and disable a network adapter (not release and renew). It seems the only way to do this is through the shell object. I have been grinding on this problem for over a week. Currently I am stuck trying to apply a 'verb' to an contextmenu object.
Here are two relevent code snippets:
bool FoundOne = false;<br />
bool ContextMenuLoop = true;<br />
CString MenuItemName;<br />
CMenu MyMenu;<br />
MyMenu.CreatePopupMenu();<br />
MENUITEMINFO MenuItemInfo;<br />
ZeroMemory(&MenuItemInfo, sizeof(MenuItemInfo));<br />
MenuItemInfo.cbSize = sizeof(MenuItemInfo);<br />
MenuItemInfo.fMask = MIIM_ID | MIIM_TYPE;<br />
<br />
char Buff[50];<br />
ZeroMemory(Buff, sizeof(Buff));<br />
MenuItemInfo.cch =49;<br />
MenuItemInfo.dwTypeData = Buff;<br />
MenuItemInfo.fType = MFT_STRING;<br />
<br />
<br />
<br />
int Offset = (int)ContextMenu->QueryContextMenu(MyMenu, 0, 1, 30000, CMF_EXPLORE);<br />
unsigned int J;<br />
<br />
for (J = 0; J < MyMenu.GetMenuItemCount(); J++)<br />
{<br />
int T;<br />
T = MyMenu.GetMenuItemID(J);<br />
if (T > 0)<br />
{<br />
MyMenu.GetMenuString(T, MenuItemName, MF_BYCOMMAND);<br />
MyMenu.GetMenuItemInfo(T, &MenuItemInfo);<br />
if (DISABLE_VERB == MenuItemName)<br />
{<br />
FoundOne = true;<br />
break;<br />
}<br />
}<br />
}
At this point I have the context menu object, and actually found the DISABLE_VERB. I also MenuItemInfo for this particular menu item. So far so good...
if (true == FoundOne)<br />
{<br />
HRESULT Hr = NULL;<br />
<br />
CMINVOKECOMMANDINFO Cmd;<br />
ZeroMemory(&Cmd, sizeof(Cmd));<br />
Cmd.cbSize = sizeof(CMINVOKECOMMANDINFO);<br />
Cmd.lpVerb = MAKEINTRESOURCE(MenuItemInfo.wID);<br />
<br />
Hr = ContextMenu->InvokeCommand(&Cmd);<br />
int L = GetLastError();<br />
<br />
<br />
Sleep(100);<br />
<br />
Cmd.lpVerb = ENABLE_VERB;<br />
}
The line in bold is the key line. Its where I set my verb. If I use the DISABLE_VERB, which I just found, it gives me an invalid parameter error (80030057). I set the verb directly, such like Cmd.lpVerb = DISABLE_VERB; when I get this error. I have no idea why since I searched for it and found it.
Next I tried using the wID (as it is done in this code snippet) and while it accepted the parameter, it did the wrong thing (It tried to bridge network connections). I thought the index might be off by +/- 1, but that didn't help.
Can anyone tell me what I am doing wrong?
|
|
|
|
|
- I have developed a simple SDI application which has the ability to draw a rectangle in the client area. (For this i am using a dialog box to get the values from the user and i am using the view pointer to draw the diagram)
- Now i am trying to write a wrapper which is a COM interface to call the draw function in the view of SDI application. But i failed to get the right view handle.
- Could any one suggest any method to get the expected behaviour?
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
