Re: Delete files that are in use - C / C++ / MFC Discussion Boards

having a color show through another color

Gilfrog17-Oct-02 9:10

17-Oct-02 9:10

I have a grid that you can set a color for each cell. When multiple selection is on and i select cells with a background color in it the selection color over rides the original cell background color.

I would like to blend these 2 colors to show that it is selected and show the original cell background color.

when drawing i have the 2 COLORREF values. Is there a function to blend these or something along those lines.

Similar to how excel handles selection and background colors.

thanks

Re: having a color show through another color

Christian Graus17-Oct-02 11:30

Christian Graus

17-Oct-02 11:30

If it's just two values, blend them yourself. Or use GDI+, which has transparency, or AlphaBlt ( I think ), which is in Windows 98 upwards. Or go to the WDJ site and download the code for my article on doing alphablending for Windows 95.

Christian

Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002

During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002

Re: having a color show through another color

C^hris L^osinger17-Oct-02 11:58

C^hris L^osinger

17-Oct-02 11:58

Rblend = (R1 + R2) / 2
Gblend = (G1 + G2) / 2
Bblend = (B1 + B2) / 2

-c

Alcohol is the anesthesia by which we endure the operation of life.
-- George Bernard Shaw

Smaller Animals Software

Re: having a color show through another color

Gilfrog21-Oct-02 12:39

Gilfrog

21-Oct-02 12:39

COLORREF CList::Transform2SelColor(COLORREF clr)
{
return RGB(
abs( ((DWORD)clr&0xFF) - (255 - ((DWORD)m_clrSelection&0xFF)) ),
abs( (((DWORD)clr>>8)&0xFF) - (255 -(((DWORD)m_clrSelection>>8)&0xFF)) ),
abs( (((DWORD)clr>>16)&0xFF) - (255 - (((DWORD)m_clrSelection>>16)&0xFF)) ));
}

where clr is the slection color

take the absolute value of (R value of the selection color - the inverse of the background color)

Delete files that are in use

Ola Carlsson17-Oct-02 8:56

Ola Carlsson

17-Oct-02 8:56

Hi,
I need to delete files that are in use.
I can´t restart my computer or neither exit programs that are using them. Any suggestions? Need to work on NT/2000 server.
/Ola Carlsson

Re: Delete files that are in use

Daniel Turini17-Oct-02 9:24

Daniel Turini

17-Oct-02 9:24

MoveFileEx(szFile, NULL, MOVEFILE_DELAY_UNTIL_REBOOT);

But you'll need to restart your computer.

My latest articles:
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Re: Delete files that are in use

Maximilien17-Oct-02 10:08

Maximilien

17-Oct-02 10:08

SHFileOperation, I think it can do that ...

Max.

Re: Delete files that are in use

Scott H. Settlemier17-Oct-02 11:44

Scott H. Settlemier

17-Oct-02 11:44

That reminds me of a question:
How can one determine the process(es) by which
the file is in use? It's be nice to have a little
utility that reports who has what files open.

Re: Delete files that are in use

Joe Woodbury17-Oct-02 17:59

Joe Woodbury

17-Oct-02 17:59

Scott H. Settlemier wrote:
How can one determine the process(es) by which
the file is in use?

http://www.sysinternals.com/[^]

Has just such a utility

Compile error caused bu "#import <netcfgx.dll>"

Tida17-Oct-02 8:38

Tida

17-Oct-02 8:38

Dear all,
I need to use INetCfg COM interface.
so I import it's dll in my project
#import <netcfgx.dll>
but got the following error:
/////////////////
fatal error C1083: Cannot open type library file: 'netcfgx.dll': Error loading type library/DLL.
////////////////////
I can find this netcfgx.dll under the WINNT/system32/

Need Help!

Laura

Re: Compile error caused bu "#import <netcfgx.dll>"

Joaquín M López Muñoz17-Oct-02 8:49

Joaquín M López Muñoz

17-Oct-02 8:49

Try with #import "C:\\WINNT\\system32\\netcfgx.dll".

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Still doesn't work when using #import "C:\\WINNT\\system32\\netcgfx.dll"

Tida17-Oct-02 9:36

Tida

17-Oct-02 9:36

still doen't work

any other idea?

Re: Compile error caused bu "#import <netcfgx.dll>"

Todd Smith17-Oct-02 11:51

Todd Smith

17-Oct-02 11:51

Here are some other examples. Not sure what you need exactly.

#import "EventSrc\Debug\EventSrc.dll" no_namespace named_guids
#import "..\Bin\SystemCPU.dll" raw_interfaces_only, raw_native_types, no_namespace, named_guids
#import "C:\PROGRAM FILES\MICROSOFT OFFICE\OFFICE\MSO97.DLL" raw_interfaces_only
#import "..\DemoCallback\debug\DemoCallback.dll" named_guids raw_interfaces_only 
#import "..\Server\ES.tlb" no_namespace, named_guids, raw_interfaces_only, raw_native_types
#import "c:\Program Files\Common Files\System\ADO\msado15.dll" no_namespace rename("EOF", "EndOfFile")

Todd Smith

Re: Compile error caused by "#import <netcfgx.dll>"

Tida18-Oct-02 4:49

Tida

18-Oct-02 4:49

It is not the attributes but the dll itself cannot be opened.
( I tried differenct attributes, still doesn't work)

Basic C++ question.

Anonymous17-Oct-02 8:13

Anonymous

17-Oct-02 8:13

If i write this:

char *szFileNameOnly[999];

will all the char pointers be initialized to zero or do i have to do that myself?

Thanks

Re: Basic C++ question.

C^hris L^osinger17-Oct-02 8:16

C^hris L^osinger

17-Oct-02 8:16

you will have to do that yourself. C/C++ doesn't initialize anything for you (unless it has a constructor, or if you're in debug mode using MSVC's compiler).

-c

Alcohol is the anesthesia by which we endure the operation of life.
-- George Bernard Shaw

Smaller Animals Software

Re: Basic C++ question.

Joaquín M López Muñoz17-Oct-02 8:17

Joaquín M López Muñoz

17-Oct-02 8:17

Gosh, you typed faster than me Smile | :)

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: Basic C++ question.

C^hris L^osinger17-Oct-02 8:18

C^hris L^osinger

17-Oct-02 8:18

Alcohol is the anesthesia by which we endure the operation of life.
-- George Bernard Shaw

Smaller Animals Software

Re: Basic C++ question.

Nish Nishant17-Oct-02 8:22

Nish Nishant

17-Oct-02 8:22

Joaquín M López Muñoz wrote:
Gosh, you typed faster than me

Not only did he type faster than you, he also typed thrice as many words as you did Smile | :)

Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Review by Shog⁹
Click here for review[NW]

Re: Basic C++ question.

Joaquín M López Muñoz17-Oct-02 8:24

Joaquín M López Muñoz

17-Oct-02 8:24

Come on, add to my frustation Smile | :)

PS: Excellent strings tutorial.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: Basic C++ question.

Joaquín M López Muñoz17-Oct-02 8:17

Joaquín M López Muñoz

17-Oct-02 8:17

You have to do it yourself.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: Basic C++ question.

Maximilien17-Oct-02 8:23

Maximilien

17-Oct-02 8:23

You should always initialize variables when declaring them.

Max.

Re: Basic C++ question.

Chris Richardson17-Oct-02 8:26

Chris Richardson

17-Oct-02 8:26

C++ doesn't automatically do it for you, but it does have easy ways for you to do it. This statement will cause all the pointers to be initialized to zero:

char *szFileNameOnly[999] = {0};

Chris Richardson

Re: Basic C++ question.

Anonymous17-Oct-02 9:14

Anonymous

17-Oct-02 9:14

Thanks for you advice. Can this also be done when the variable has already been declared? If so, how? Cause I'm getting an error when trying to do it.

Re: Basic C++ question.

Chris Richardson17-Oct-02 9:18

Chris Richardson

17-Oct-02 9:18

If you want to zero all the pointers after the variable has been declared, you can use memset:

memset( szFileNameOnly, 0, sizeof( szFileNameOnly ) );

Chris Richardson

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