C / C++ / MFC

9-Jan-03 2:00

this->m_pPSEstacio = new CPSEstacio("", this, 0);

this->m_pPSEstacio->Create(this, WS_CHILD | WS_TABSTOP);
this->m_pPSEstacio->ModifyStyleEx(0,WS_EX_CONTROLPARENT);  // If you don't use this you won't be able to switch to the parent window controls using tab.

this->m_pPSEstacio->ModifyStyle(0,WS_VISIBLE);

importing from a DLL...

Joan M9-Jan-03 0:15

9-Jan-03 0:15

Hello,

I have a DLL that I've written and I have it's lib file.

I would like to import one function of that DLL using that lib file.

I'm on the DEBUG link version of a Service, and in the Project->Settings->Link->Object library modules I've included the path to that lib file.

I've placed the DLL inside the same directory of the service.

When I edit the source code of the service in the VC++6 editor and I write down the name of the function that I want to import, a tooltip appears with the guidelines of how to continue writting that function (parameters and so on...)

Ok.

after having said this, when I try to link the code I receive this error message:

C:\blablabla.cpp(357) : error C2065: 'bActivarHook' : undeclared identifier
Generating Code...
Error executing cl.exe.

bActivarHook is the function that I want to import.

any idea?

Thank you in advance.

bla.exe - 1 error(s), 0 warning(s)

Raphael Kindt9-Jan-03 1:19

Raphael Kindt

9-Jan-03 1:19

I dont know if I have understood your situation but I suppose that you have added the header file of your DLL (defined the exported functions) into the project that use your DLL?

I suppose... because you have writed:
When I edit the source code of the service in the VC++6 editor and I write down the name of the function that I want to import, a tooltip appears with the guidelines of how to continue writting that function (parameters and so on...)

Hello World!!! Smile | :)

from Raphaël

Joan M9-Jan-03 1:29

9-Jan-03 1:29

No,

let me explain better, my english is not my best...

1. I have a DLL that installs a system wide keyboard hook that exports a function lets call it FxA.

2. In the project of the service that will launch that function (FxA) I've added the LIB file of the DLL going to the menu item: (Project -> Settings -> Link) and writting there the path to that lib file.

3. Once this has been done, I try to use that function from my service calling it directly (i.e: FxA(true);)

but when I link the service App. the linker tells me that:

error C2065: 'FxA' : undeclared identifier
Generating Code...
Error executing cl.exe.

SCTATL.exe - 1 error(s), 0 warning(s)

And I don't know why.

I'm sure that I'm missing something important, but I cannot remember what it is.

Do you know what I'm missing in order to be able to import that function?

NOTE:
when I've written:
When I edit the source code of the service in the VC++6 editor and I write down the name of the function that I want to import, a tooltip appears with the guidelines of how to continue writting that function (parameters and so on...)
I meant that when in the source code I have written the name of the function ("FxA(") and a "(" then a tooltip appears with the right type of parameter that I must enter... and this makes me to think that the VisualC++ knows the existence of that FxA function.

NOTE2:
Have I helped you with the Property sheet affair?

Raphael Kindt9-Jan-03 1:52

Raphael Kindt

9-Jan-03 1:52

did you have omitted this?

#ifndef DLLEXPORT
	#define DLLEXPORT _declspec(dllexport)
#endif

//this function is exported
DLLEXPORT void FxA(bool bValue);

in your header file... (I repeat: you must to add this header file to your service project)

Joan Murt wrote:
Have I helped you with the Property sheet affair?

I'm trying... thanks...

Hello World!!! Smile | :)

from Raphaël

Joan M9-Jan-03 1:49

small problem with CString And GetWindowsDirectory

9-Jan-03 1:49

er...

You was right Blush | :O

I had not placed that file there...

that was a big mistake! Dead | X|

Thank you very much, you've helped me.

r i s h a b h s8-Jan-03 22:45

r i s h a b h s

8-Jan-03 22:45

dear all,
i am using the following code to get root directory and then find out the file system.
but it gives an error Specified Path iS Invalid!
what wrong have i done!

is there any other (better) way to do it!

plz. help!!! Confused | :confused:

DWORD dwError;

CString RootPathName;
CString RootDir;

UINT i = GetWindowsDirectory(RootPathName.GetBuffer(MAX_PATH),MAX_PATH);

RootDir= RootPathName.Mid(0,2);
AfxMessageBox(RootDir);

BOOL bFSResult = GetVolumeInformation (RootDir.GetBufferRootDir.GetLength)),
NULL,
0,
NULL,
NULL,
NULL,
FileSystem.GetBuffer(MAX_PATH),
MAX_PATH);
dwError = GetLastError();
AfxMessageBox(FileSystem);

Re: small problem with CString And GetWindowsDirectory

Hans Ruck9-Jan-03 0:08

Hans Ruck

9-Jan-03 0:08

// ...
UINT i = GetWindowsDirectory(RootPathName.GetBuffer(MAX_PATH),MAX_PATH);
RootPathName.ReleaseBuffer();
RootDir= RootPathName.Mid(0,3);
// ...

rechi

Re: small problem with CString And GetWindowsDirectory

Hesham Amin9-Jan-03 0:41

Hesham Amin

9-Jan-03 0:41

This is my code for it : (I don't prefere using CString with APIs and this is just because I feel it's easier to use char)

char WinDir[MAX_PATH];
char Vol[4];
char FileSystem[10];

UINT i = GetWindowsDirectory(WinDir,MAX_PATH);

AfxMessageBox(WinDir);
strncpy(Vol,WinDir,3);
Vol[3]='\0';
AfxMessageBox(Vol);

BOOL bFSResult = GetVolumeInformation (Vol,
NULL,
0,
0,
0,
0,
FileSystem,
10);

AfxMessageBox(FileSystem);

Maximizing window in MDI

Rage8-Jan-03 22:27

Rage

8-Jan-03 22:27

Hi !

I started yesterday to write my first MDI app (with MFC, let's get at it slowly Smile | :)

). This is a kind of text viewer, maybe editor (Yes, another one Roll eyes | :rolleyes:

but i think it's a good example to start). You may say there is not much to do, but ...
Anyway, my first problem is that i'd like the child windows to be maximized when a document is opened. Currently the child window is about half the size of the screen, in the middle. Since the main frame is maximized at startup, i'd like the child win to be maximized also.

So i intercetpted the CREATESTRUCT from the PreCreateWindow in CMDIChild class, and did :

cs.style|=WS_MAXIMIZE;

But this would not change anything. I tried this in several other places, and also with ShowWindow(WS_MAXIMZED), but no way, my win is still not maximized. Confused | :confused:

What's wrong ?

~RaGE();

Hans Ruck8-Jan-03 23:48

Hans Ruck

8-Jan-03 23:48

Try:

ShowWindow(SW_MAXIMIZE);
((CMDIFrameWnd *)AfxGetMainWnd())->RedrawWindow(NULL, NULL,
  RDW_INVALIDATE | RDW_ALLCHILDREN);

or MDIMaximize().

rechi

Rage9-Jan-03 0:49

Rage

9-Jan-03 0:49

Thanks. I'll give it a try.

I did not think it was that complicated Unsure | :~

: your hint seems a little bit tricky Blush | :O

(Do not get me wrong, I just mean that I usually use the AfxGet**() functions when I did not get anything else to work Roll eyes | :rolleyes:

). Is it possible that the Child Window initially have wrong system metrics (so that it thinks that the maximized size is the size that it actually has on startup, i.e. not the screen size ) ?

[Look at MSDN]

Oh, I think MDIMaximize should be what I need.

Big thanks

~RaGE();

Hans Ruck9-Jan-03 3:06

Hans Ruck

9-Jan-03 3:06

Rage wrote:
Is it possible that the Child Window initially have wrong system metrics

I don't know.
I have tried to overwrite MyChildFrame::Create and to modify the style before calling CMDIChildWnd::Create but nothing happened. The call to ShowWindow(SW_SHOWMAXIMIZED) - which, by the way, equals MDIMaximize() Poke tongue | ;-P

- remained a must.
But, if you want to do it with a SDI window - 100% API stuff - the metrics work perfectly and are not forgotten. You have to call ShowWindow(SW_SHOW) and the window appears as maximized. This seems to be the natural windows' behaviour - for API SDI, at least.

rechi