C / C++ / MFC

Re: highlight the loaded bitmap

12-Sep-07 23:08

You have to customize the button.

- NS -

Naveen12-Sep-07 23:16

Naveen

12-Sep-07 23:16

Use CBitmapButton instead of CButton.

nave

[OpenedFileFinder]

Re: highlight the loaded bitmap

Nishad S13-Sep-07 0:21

Re: context menu dismissed

13-Sep-07 0:21

It will not support mouse over highlight, right?

- NS -

context menu dismissed

AchillesXu12-Sep-07 21:13

AchillesXu

12-Sep-07 21:13

Hi all,

How do I know the context menu created by TrackPopupMenu is dismissed? Do I get any message? I know I will get a message if the user select an item, but how about if the user click anywhere outside of the menu?
Thanks.

Stephen Hewitt12-Sep-07 21:27

Stephen Hewitt

12-Sep-07 21:27

When the menu is dismissed TrackPopupMenu will return.

Steve

Re: context menu dismissed

AchillesXu12-Sep-07 21:47

AchillesXu

12-Sep-07 21:47

Yes! So simple! Thanks a lot!

How to use a COM but no .h files

kcynic12-Sep-07 19:49

kcynic

12-Sep-07 19:49

I have a COM component with no .h files.But I want to use it,how should I begin?

Thanks.

GOOD LUCK

Stephen Hewitt12-Sep-07 20:22

Stephen Hewitt

12-Sep-07 20:22

Look up #import.

Steve

kcynic12-Sep-07 20:34

kcynic

12-Sep-07 20:34

I am sorry that,I only have a .dll file of the COM component.
Thanks

Stephen Hewitt12-Sep-07 20:38

Stephen Hewitt

12-Sep-07 20:38

#import is meant for such situations. NOTE: NOT #include but #import. Look it up!

Steve

Problems writing to a file

kcynic12-Sep-07 21:25

kcynic

12-Sep-07 21:25

Thank you very much.

TheInfernalCrow12-Sep-07 19:38

12-Sep-07 19:38

He there,

I wrote a DLL in which i have got a function that shall be passed some data and a filename and it shall save the data into the file.

I tried three diffeent ways and at all off the three I get the message that I am not allowed to write to the file ("Access denied").

The first way I tried:

FILE *File;<br />
	File = fopen("strName", "w+");<br />
	fprintf(File, "Test");<br />
	fflush(File);<br />
	fclose(File);

The message comes when I reach the fflush line, when i delete it, the message comes at the fclose line.

The second way:

CFile FileHF;<br />
	FileHF.Open(strName, CFile::modeCreate | CFile::modeWrite | CFile::modeNoTruncate);<br />
	FileHF.Write(pHF, sizeof(pHF));<br />
	FileHF.Close();

This is the way i found around the internet told as working, not with me Frown | :(

I get the message in the File.Write line.

The third way:

CFile FileHF;<br />
	FileHF.Open(strName, CFile::modeCreate | CFile::modeWrite | CFile::modeNoTruncate);<br />
        CArchive ar(&FileHF, CArchive::store);<br />
	ar << (int)pHF;

This way I found in a book, but here I get the Message in the CArchive line.

I am out of knowledge and ut of sources which could tell me the right way. Could you please?
thx
Lars

Nishad S12-Sep-07 20:51

12-Sep-07 20:51

TheInfernalCrow wrote:
I am not allowed to write to the file ("Access denied").

From where this access denied message got?

- NS -

nbugalia12-Sep-07 21:37

nbugalia

12-Sep-07 21:37

Is this working in the application ? What i mean is are you getting this message only in dll ?

If you are getting it in both application and dll, may be you have not proper access rights.

TheInfernalCrow12-Sep-07 21:46

12-Sep-07 21:46

I get a MessageBox saying that,

Both in Dll and my Prog I get the Message.

I am an Admin user in my system.

chandu00412-Sep-07 22:08

chandu004

12-Sep-07 22:08

FILE *File;
File = fopen("strName", "w+");
fprintf(File, "Test");
fflush(File);
fclose(File);

this is your above code.
try removing '"' quotations before the strName and see.
then also if you are getting an error,
then hardcode the filename and see like fopen("c:\\test.txt");
and also you have to do some error checking like,

FILE *File;
File = fopen(strName, "w");//NOTE:try removing the + and see
if(File != NULL)
{
fprintf(File, "Test");
fflush(File);
fclose(File);
}
else
{
AfxMessageBox("File Not Opened successfully");
}

i suspect that, the problem may be with + or the filename you are passing.

TheInfernalCrow12-Sep-07 22:49

12-Sep-07 22:49

i removed them and nothing changed as well only to have "w" in the fopen and hardcoding the filename

chandu00412-Sep-07 23:08

chandu004

12-Sep-07 23:08

try doing the error checking as i did and post your code.

nbugalia12-Sep-07 23:37

nbugalia

12-Sep-07 23:37

You can remove both the fflush and fclose statements.
The file will still generated and the text will be written in it.
Tell me the status, if you are still getting the error message, or the file is generating or not.

Also you can use ProcessExplorer to get the parent of the Error Message window. Is this the same application.

TheInfernalCrow12-Sep-07 23:45

12-Sep-07 23:45

No I can't.

I get an empty file, nothing more.

Nishad S13-Sep-07 0:23

13-Sep-07 0:23

For verification, first you check whether the file is existing or not. If existing make sure that the file does not have the read-only attributes (or system attribute).

- NS -