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I think you can use
(HINSTANCE)GetModuleHandle( _T("Your DLL File Name Here.dll") );
instead of the hInstance of the application  . Or, you can just use the saved hInstance value from DLLMain like AlexO suggested.
Chris Richardson
C/C++ Include Finder[^]
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That's exactly what I ended up doing. I try to avoid globals if at all possible. That shared global memory in a windows app can bite ya.
Thanks!
Dan Willis
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Ok,
I've been at coding for a few years now, and I'm just now using the "new" operator. LOL. Now I have a question:
LPCTSTR lpUserStringInput = (LPCTSTR) new LPCTSTR (MAX_STRING_INPUT);
why isn't this valid? I get this error:
:\src\libdialog\libdialog.cpp(71) : error C2440: '=' : cannot convert from 'const int' to 'const char *'
Conversion from integral type to pointer type requires reinterpret_cast, C-style cast or function-style cast
So what am I doing wrong? And when I want to delete it I just want to do this:
if (lpUserStringInput != NULL)
delete lpUserStringInput;
right? I know how new/delete work with classes, but on individual variables I dunno. Thanks!
Dan Willis
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Many problems where. First, why use a LPCTSTR? That is a pointer to a constant string. Thus you are allocating a buffer you don't intend to modify?
Second, why are you casting the results of a new? 999 times out of 1000, it means you aren't allocating the right thing. new is specifically designed to not require the need to cast.
Third, "new LPCTSTR" will allocate one or more pointers to constant strings. Not strings themselves.
Last thing, if you want to allocate a string of length MAX_STRING_INPUT, then do this
LPTSTR lpUserStringInput = new TCHAR [MAX_STRING_INPUT];
Also, if you wish to delete an array, you MUST use delete [] and not just delete.
Tim Smith
I'm going to patent thought. I have yet to see any prior art.
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Thank you. Clears up alot of things for me
one more thing, when calling delete on an array do I need to loop through the array or does:
delete[] lpUserStringInput;
handle that?
Thanks a lot!!!
Dan Willis
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I'm all set guys. thanks alot!
I learn something new every day from this place Woo Hoo! Maybe one of these days I'll be a decent programmer becuase of all of you.
Thank you.
Dan Willis
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what you wrote roughly translates to
char* p = new char*;
you have to decide what ever you meant to do
char** p = new char*;
or
char* p = new char[25];
P.S. If I may, I would strongly recommend "C Programming Language (2nd Edition)"
by Brian W. Kernighan, Dennis Ritchie, Dennis M. Ritchie
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Thanks AlexO
your recommendation is noted. Looking now for it.
Once again thank you.
Cheers!
Dan Willis
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Hi !!
As I was compiling my C++ project, Visual Studio (6.0) crashed and now, when I open my workspace, I get a message telling me the it cannot access the ClassView information file.....
I cannot see my classes anymore !!!
Does anyone know how I could recover the classview ???
Thank you for your help !
Jerome
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Thanks but I don't have any .clw files in my project folder......
Any other idea ??
Jerome
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Have you got the project open in another copy of visual studio?
Sounds stupid and obvious, but I often find myself cursing at a broken classview, only to realise that I'd absent mindedly started visual studio twice (and the first copy has exclusive control over the classview stuff)
A reboot in situations like this can also be a magic fix (assuming you haven't tried that already) - sometimes software just goes mad
--
Help me! I'm turning into a grapefruit!
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Mmmmhh... I didn't even think about trying to reboot......
It's working fine now ! Thank you !
Jerome
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Glad to hear it.
I've seen plenty of occurances of visual studio just going nuts, and needing a reboot to fix it
Such as tracing through a function that was behaving oddly, only to be able to find an if statement that was deciding that 0 == 1 
--
Help me! I'm turning into a grapefruit!
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I get this problem right after DevStudio crashes on me (which is not very often, fortunately). If I then run it again, and reopen the project, I get that message.
The solution then is to open the TaskManager and search for MSDEV.EXE in the list of processes. I usually find two, the one I just ran and the one that had crashed. You can distinguish them by the CPU time. I kill the old process, reopen the project, and everything's cool.
Regards,
Alvaro
The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing. -- Albert Einstein
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Hy all,
I'd like to ask to someone if is already happened to see this error message during the Compilation phase.
"type name first seen using 'struct' now seen using 'class'"
Do you know something about it??
Thanks in advance
Andrea
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Don't you have the same name for a class and a struct ??
Jerome
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Hy Jerome,
thanks in advance for your support!!
No, or better I think not.
Because I observed this behaviour sometimes.
I create a ATL wizard project, simply dll without MFC support,MTS etc...
After that I add a simple object with ATL wizard, and after again I add a method.
Since I compile this project on order to obtain a simple dll and seems all fine.
When I import the library with #import ....\<name>.tlb no_namespace in other project and try to compile appear the famous error!!
I believe that depend by some setting in my Visual Studio but I'm not sure!!
Bye;)
Andrea
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I know this may seem like a rather simple problem, however it has stumped. Any help would be greatly appreciated.
How are child controls (CEdit, CButton, etc) resized when the window is manually resized or maximized? (I know that all controls are endowed with the ability to redraw themselves, however if I maximize or manually resize the frame window how do I stretch the control either horizontally or vertically so that I am not left with lots of empty space in the window?)
Thanks,
Don
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Alas,
MFC (and Win32 API) doens't automatically support this, you need to do it by hand, on the OnSize(...) handler of WM_SIZE.
There are a couple of ways of doing it, either you manually resize and reposition each control, or you use one of many solutions presented here on codeproject, search for them in the dialog section.
Max.
Maximilien Lincourt
For success one must aquire one's self
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One solution is to override OnSize() and move the objects accordingly via MoveWindow() and SetWindowPos().
Kuphryn
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I spawned a modeless dialog from my view class. It debug asserts or crashes in release:
BOOL CMsg::OnInitDialog()
{
CDialog::OnInitDialog();
m_nTimer =SetTimer(1,4000,0);
return TRUE;
}
void CMsg::OnTimer(UINT nIDEvent)
{
DestroyWindow();
KillTimer(m_nTimer);
CDialog::OnTimer(nIDEvent);
}
void CMsg::PostNcDestroy()
{
delete this;
CDialog::PostNcDestroy();
}
Switching the order of destroyW and KillTimer doesnt help...Call stack says OnTimer...
Appreciate your help,
ns
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ns wrote:
delete this; CDialog::PostNcDestroy();
Rethink the order. In 2 lines above you delete an object and then you call a method on that object
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aaargh! I see ....
I was also being blind in the OnTimer function...destroying a window and trying to process it....
Hope I learned from this lesson!!!
Appreciate your help,
ns
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ns wrote:
Hope I learned from this lesson!!!
That's the difference between the idiot and the smart. Both make mistakes, but only the smart learns something out of it.
--
Human beings, who are almost unique in having the ability
to learn from the experience of others, are also remarkable
for their apparent disinclination to do so. (Douglas Adams)
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