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In addition to the above suggestion of using vectors etc, you could also use the old methods. Note that I haven't tested it.
//Also make sure that the src parameter is now large enough.
void ScaleVector(float *src, float deltaT)
{
for (int i = 0; i < p.n; i++)
{
float vx = src[i]; // velocity on x axis
float vy = src[i+1]; // y axis
float vz = src[i+2]; // z axis
float ax = src[i+3]; // acceleration on x axis
float ay = src[i+4]; // y axis
float az = src[i+5]; // z axis
src[i] = vx * deltaT + 0.5 * ax * deltaT * deltaT; // calculate the displacement at x axis
src[i+1] = vy * deltaT + 0.5 * ay * deltaT * deltaT; // y axis
src[i+2] = vz * deltaT + 0.5 * az * deltaT * deltaT; // z axis
src[i+3] = ax * deltaT; // added speed at x
src[i+4] = ay * deltaT; // y
src[i+5] = az * deltaT; // z
}
}
this is this.
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I need to launch a GUI application from another application
that is running as a Window Service.
To do that I use the CreateProcess method. This is the code:
<br />
PROCESS_INFORMATION l_ProcessInfo;<br />
STARTUPINFO l_StartupInfo;<br />
<br />
ZeroMemory(&l_StartupInfo, sizeof(STARTUPINFO));<br />
<br />
l_StartupInfo.cb = sizeof(STARTUPINFO);<br />
l_StartupInfo.dwFlags = STARTF_USESHOWWINDOW;<br />
l_StartupInfo.wShowWindow = SW_SHOWMAXIMIZED;<br />
<br />
CreateProcess(NULL, <br />
l_cstrFileToLaunch.GetBuffer(0), <br />
NULL, <br />
NULL, <br />
FALSE,<br />
DETACHED_PROCESS,<br />
NULL,<br />
NULL,<br />
&l_StartupInfo,<br />
&l_ProcessInfo))
The problem is the following:
the GUI application is launched (CreateProcess returns nonzero and I can
see the new process running by task manager) but its windows is not shown
and I can't see its hinstance in the Windows Command bar.
Where is the problem ?
Can someone help me ?
thanks a lot !!!
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Hi ilgale,
your code worked,
whats problem(I run NotePad) and this work
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That code runs ok if executed by an application that runs normally...
but not if executed by an application that runs as a Window
Service.
I've registered an application as a Window Service and I've
started it by the Service Control Manager. In that case the
CreateProcess doesn't let the "child" application to show its window.
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Will something like this help:
AttachThreadInput(
GetWindowThreadProcessId(
::GetForegroundWindow(),NULL),
[YourProcessId],TRUE);
SetForegroundWindow();
SetFocus();
AttachThreadInput(
GetWindowThreadProcessId(
::GetForegroundWindow(),NULL),
[YourProcessId],FALSE);
~RaGE();
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Thanks a lot !!!
but.. what's the HWND object that I have to pass to
SetForegroundWindow and SetFocus functions ?
If I've well understood I've to run that code into the
Service that uses the CreateProcess but.. I need an HWND object to pass to that functions....
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ilgale wrote: If I've well understood I've to run that code into the
Service that uses the CreateProcess
Yes sorry, I had to go away from my desk, so I fired up the post.
This is a snippet used to bring a dialog on the top of the Z-order, i thought it coudl work in your case. I do not exactely know how a service works, but I assume it is a normal Win application started differently. So I believe you must be able to get a HWND with GetSafeHwnd() from within the service.
~RaGE();
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The problem is that the service in not a Win application,
it is a simple C++ program with a main, including MFC
functions. So I don't have an HWND object 
I think the problem is in STARTUPINFO object settings...
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I think the problem is that the service is not interactive. You should make it interactive if it is not already.
this is this.
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Hello
I wanna create a Visual C++ program that encrypt a message and plit the ancrypted message into certain parts,and then the message will be recostructed by a certain amount of parts of the encrypted message.
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For the encryption part, simply type encryption in the combo box on the up left of this page (under code project) and you'll find enough article to help you get a start at it.
For the splitting part, I would try and do a search about zip libraries: they used to provide file splitting algorithms.
~RaGE();
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I am currently trying to complile programs which use the vmr9 direct show filter. Unfortunatly i get an error in MS Vis Studio .NET 2003 saying that it cannot locate the file vmr9.h .
I have installed the DirectX SDK (October 2005) and i cant find the files anywhere for download across the net.
Any ideas ?
Cheers
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vmr9.h is in platform sdk.
-Saurabh
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I am using Visual c++ 6.0
Would you like to give me a Class that make DateTimePicker Flat ?
Urgent
I learn my self
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A bitmap file is in size of 200x100 (pixels).
Now CDC is in MM_LOENGLISH MapMode, If I use ::SetDIBitsToDevice() to print whole bitmap, printed bitmap is very small.
Question:
if Bitmap size is in LOGIC points, the printed image should be in size 2x1 (inches) - but actual printed bitmap is much smaller than that.
so:
is Bitmap size LP or DP?
hint:
DPtoLP changes (200,100) to (33,-17).
A nice hyper tool for optimizing your Microsoft html-help contents.
A best image tool for Windows C++ programmers, don't miss it!.
Includeh10
-- modified at 7:01 Tuesday 28th March, 2006
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hi,
I have set the image for a subitem as follows
LVITEM litem;
litem.mask = LVIF_IMAGE;
litem.iSubItem = 1;
litem.iItem = 0;
litem.iImage = 0;
m_List.SetItem( &litem );
but when I try to call the GetItem to get the image associated with a subitem, its not working(it is working if the subitem is 0). I have set the LVS_EX_SUBITEMIMAGES style of the list control. What else should I do..
Please help me
nave
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maybe it is some helpful to you
IMAGEINFO ImageInfo;
CImageList* m_pImageList = GetImageList(LVSIL_NORMAL);
m_pImageList->GetImageInfo(nImage, &ImageInfo);
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Thanks,
But What i want to know is the image number associated with a subitem in listctrl. I think the above function won't help me in that..
nave
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Naveen R ,
I have this problem(But I have derived CListCtrl and I use this way in the NM_CUSTOMDRAW)
anyway I think you can use
int nImage=GetNextItem(-1,LVNI_SELECTED);
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I don't think that you can get the index for a sub-item image, since the iImage member of LVITEM structure is specifically described as the index of the item's image, and not the index of the sub-item's image.
Maybe you must manually store the sub-item's image index in the lParam of the item and retrieve it from there.
Best,
Mike
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Hi there,
I have a program written in C++. I need to convert it to Matlab. I have use mex to run my C++ program, but I do not understand what is mxarray? Do I need to change my C++ program to fit the mxarray?
Zaara
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I have a Visual C++6 project for extracting WMI information from machines
across the network. I am using the IWbemLocator::ConnectServer method with the WBEM_FLAG_CONNECT_USE_MAX_WAIT flag. The flag prevents the app from hanging and will timeout the call if not sucuessful after 2mins. But this flag only works for XP pcs and no other like 2000 etc and also is fixed at 2mins.
how can a timeout be implemented so i can kill the ConnectServer method say after 20seconds.
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