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Add a handler for WM_SIZE in your CFormView derived class. Then use SetWindowPos(...) on your different controls. (You'll have to assure the controls have been created, cause this function will be called once before the controls have been attached to any window handles.)
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Hi everybody,
I want to get the documents´ icon in a MDI application. When I try to use GetIcon() from CMDIChildWnd HICON is a null pointer. Also when I try to use GetIcon() from CMDIFrameWnd it returns NULL.
By the way I use this in my windows-recorder...
Any ideas?
Amar
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Hi!
Maybe try to get CDocTemplate from CDocument, then access m_nIDResource attribute: LoadIcon(nIDResource). This attribute is not accessible, so You may need to derrive class from CDocTemplate (CMultiDocTemplate to be exact) in order to access this attribute.
Hope this helps
Mukkie
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I want to make an ActiveX control with VC++ (MFC). This control should have a toolbar.
How can I do that ? I tried to create the toolbar like this:
if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP | CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) ||
!m_wndToolBar.LoadToolBar(IDR_MAINFRAME))
{
TRACE0("Failed to create toolbar\n");
return -1; // fail to create
}
This is how it is createed in an standard MFC (.exe) SDI project. This doesn't work. (no error, but the toolbar doesn't appear).
Tzoockee
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strncpy does not append the terminating null character when the copy runs up to the maximum number of characters specified in the third parameter. Replace your last two lines with:
int nLen=strlen(strExePath) - strlen(pdest);
strncpy(strIniPath, strExePath, nLen);
strIniPath[nLen]='\0';
strcat(strIniPath, ".ini");
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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Thank you for your clear answer !
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HOWTO: Iterate values/data inside a registry section?
--BlackSmith--
"With the help of all mighty", 2001, Me.
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DWORD status;
HKEY hKey;
DWORD dwIndex=0;
status=RegOpenKeyEx(HKEY_LOCAL_MACHINE,"SOFTWARE\\Whatever\\Key",0,
KEY_ALL_ACCESS, &hKey);
if (status != ERROR_SUCCESS)
do {
status=RegEnumValue(hKey, dwValue,
dwIndex++;
} while (dwIndex != ERROR_NO_MORE_ITEMS);
RegCloseKey(hKey);
Sorry to dissapoint you all with my lack of a witty or poignant signature.
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Hi
if i allocate 2 new char arrays like:
char *pChars1 = new char[8];
char *pChars2 = new char[10];
can i be SURE (i.e. nothing other may happen) that when i use pChars1[8] get the first char of the second array (= pChars2[0])?
For example think of a string which is 7 chars long. Then i set pChars1[7] non-NULL. Then a string-read at the start of pChars1 would give the string consisting of the first and the second array?
If this is not possible, is there a compiler-switch to make this work?
Thanks
Dominik
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No way, no how. Instead you'd need to do this:
char * pChars1 = new char[18];
memset(pChars, 0, 18);
char * pChars2 = pChars1+8;
Christian
The tragedy of cyberspace - that so much can travel so far, and yet mean so little.
"I'm somewhat suspicious of STL though. My (test,experimental) program worked first time. Whats that all about??!?!
- Jon Hulatt, 22/3/2002
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To expand a little on Chris' answer:
When you ask for 8 char's of memory, thats all you get. You have no control over how the Runtime environment allocated that, and you don't need it. If you need two logical blocks of memory to be next to each other, then allocate one (bigger) block.
if you allocate a char[8], then referring to element 8 of that array (which you don't own, you own 0-7), is technically a protection fault. Whether or not it crashes your program is a matter of the alignment of the planets.
Sorry to dissapoint you all with my lack of a witty or poignant signature.
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Hi,
I use VC++ 6.0 (SP5) (i use MFC), and wish to design a multithreaded application.
I have the following problem :
for (int i = 0; i < N; i++)
{
// Launch may be 4 or 5 threads
AfxBeginThread(thread1);
AfxBeginThread(thread2);
AfxBeginThread(thread3);
AfxBeginThread(thread4);
}
but i would like to execute ONLY ONE thread at time. (if i do not synchronize them, i will have 4*N threads at the same time !!!).
I am confused : what should i use : CSemaphore, CEvent, WaitForSingleObject(), WaitForMultipleObjects()....
Can you help me !
Thanks.
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Have the ThreadFuncs of the threads synchronized with a CRITICAL_SECTION (the same for all of them). This post of mine shows a convenient way to do synchronization with these objects.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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Bit confused. If you want only one thread running at a time, you could always not bother with threads and be single-threaded. That way you only get one thread running at once. Surely you're missing the point of multi-threading if you block them all to single thread execution?
Sorry to dissapoint you all with my lack of a witty or poignant signature.
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You can create each thread in suspended state and then resume them one by one waiting for each to finishing.
But like someone else siad, why create threads if you are just going to serialize execution.
Tim Smith
I know what you're thinking punk, you're thinking did he spell check this document? Well, to tell you the truth I kinda forgot myself in all this excitement. But being this here's CodeProject, the most powerful forums in the world and would blow your head clean off, you've got to ask yourself one question, Do I feel lucky? Well do ya punk?
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I accept with TimSmith's reponse for Multithreading Synchronization. It's always better to create threads in suspended state and then start running in the next step.
Here the important thing is to create a thread pool. Like restrict your application for only these many threads.
I prefer you guys to refer "MultiThreadinding for Rookies" in MSDN.
Thanks
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Thread pools are useless if you are serializing all activity. The whole point of threads are to:
1. Take advantage of multi-cpu systems.
2. Allow other operations to continue processing if one thread is stalled waiting for resources.
If all your threads are CPU bound, then you are actually hurting performance by using threads.
Tim Smith
I know what you're thinking punk, you're thinking did he spell check this document? Well, to tell you the truth I kinda forgot myself in all this excitement. But being this here's CodeProject, the most powerful forums in the world and would blow your head clean off, you've got to ask yourself one question, Do I feel lucky? Well do ya punk?
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1. Take advantage of multi-cpu systems.
I think this unfortunately cannot be taken advantage of in Windows NT/.../XP, as these OSs don't distribute a process among several CPUs (only different processes are scheduled to different CPUs). Linux, on the contrary, does per-process CPU distribution.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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How to get a hotkey keyboard combination into a OnKeydown(NMHDR* pNMHDR, LRESULT* pResult).
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why OnKeyDown?
see CDialog::PreTranslateMessage example
t!
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