C / C++ / MFC

FirstPrevNext

Re: about static function Maer7277-Nov-01 18:27 Maer727 7-Nov-01 18:27  - Thanks, Christian pal! - Your reply clarifies my doubts. And I still have a stupid question. - For example, I use a static function named F1 in class A. Can I use the function F1 in another class B without creating an object (or pointer) of class A in class B. ( Suppose class B has no derivation relationship with class A) - Can you help? - Regards, Maer Re: about static function Christian Graus7-Nov-01 18:37 Christian Graus 7-Nov-01 18:37  In that case it becomes a question of the relationship between A and B. If the function is public or B is a friend of A then that would not be a problem. Christian After all, there's nothing wrong with an elite as long as I'm allowed to be part of it!! - Mike Burston Oct 23, 2001 Re: about static function Maer7277-Nov-01 19:36 Maer727 7-Nov-01 19:36  - Thanks, Christian pal! - You have clarified my doubts. - Regards, Maer Re: about static function Maer7277-Nov-01 19:33 Maer727 7-Nov-01 19:33  - Sorry for interrupting again pal! - I can not find the "FromFile" function. (MSDN-->CBitMap-->class menbers-->) - Can you help? - Regards, Maer Re: about static function Christian Graus8-Nov-01 0:02 Christian Graus 8-Nov-01 0:02  It's a GDI+ function in the Bitmap class, not a GDI function in the CBItmap class. If you don't have the SDK installed, you won't have access to it, but it's covered in the MSDN. Christian After all, there's nothing wrong with an elite as long as I'm allowed to be part of it!! - Mike Burston Oct 23, 2001 A simple question about Enum Maer7276-Nov-01 19:01 Maer727 6-Nov-01 19:01  - What is the difference between the following two sentences? - const static enum { s = 20 }; - const static s = 20; - Can you show me an example? - Regards, Maer Re: A simple question about Enum Michael Dunn6-Nov-01 20:01 Michael Dunn 6-Nov-01 20:01  The first one creates an unnamed enum type, and defines the constant s to have the value 20. I don't know if the const has any effect there since enum values are by definition constants. The second is a syntax error. It's almost a variable declaration - it's just missing the type. If it were static const int s=20; then it declares a int variable called s, with value 20 that can't be changed (const) and is visible only in that .CPP file (static). --Mike-- http://home.inreach.com/mdunn/ #include "witty_sig.h" your with and Re: A simple question about Enum Alvaro Mendez7-Nov-01 11:19 Alvaro Mendez 7-Nov-01 11:19  Mike, The second case is technically not a syntax error since the compiler assumes the default "int" type for the variable. Still, it's bad form and should not be used. Regards, Alvaro Re: A simple question about Enum Maer7277-Nov-01 18:38 Maer727 7-Nov-01 18:38  - Thanks, Mike pal! - I still have a question. What means "by definition constants" in your reply? - Can you show me an example? - Regards, Maer A simple question about variable Maer7276-Nov-01 18:58 Maer727 6-Nov-01 18:58  - What does the following sentence mean? - Variable is a constant the compiler knows the value at compile time. - Can you show me an example? - Regards, Maer Re: A simple question about variable Bernhard6-Nov-01 20:22 Bernhard 6-Nov-01 20:22  couldn't it be the other way round: constant is a variable the compiler knows the value at compile time.. makes much more sense for me... bernhard ""Politicians and diapers have one thing in common. They should both be changed regularly and for the same reason." Re: A simple question about variable Maer7277-Nov-01 18:58 Maer727 7-Nov-01 18:58  - Take a look at the following program: #include<iostream> using namespace std; class a{ private: static const int s ; int i[s]; }; const int a:: s=20; void main() { cout< Re: A simple question about variable Nish Nishant6-Nov-01 21:31 Nish Nishant 6-Nov-01 21:31  Variable is a constant the compiler knows the value at compile time Are you talking about const variables? Nish Sonork ID 100.9786 voidmain Re: A simple question about variable Maer7277-Nov-01 18:47 Maer727 7-Nov-01 18:47  - I am talking about ordinary variables. - Regards, Maer Re: A simple question about variable Alvaro Mendez7-Nov-01 11:34 Alvaro Mendez 7-Nov-01 11:34  - Where did this sentence come from? - It probably means that since the variable is declared "const", the compiler will know its exact value while it's compiling the file(s) that use it. Thus it can reliably use the variable for such things as allocating memory for arrays. - Example: const int MAX_ITEMS = 20; Item items[MAX_ITEMS]; - Regards, Alvaro Re: A simple question about variable Maer7277-Nov-01 19:00 Maer727 7-Nov-01 19:00  - Thanks, Alvaro pal! - Take a look at the following program: #include<iostream> using namespace std; class a{ private: static const int s ; int i[s]; }; const int a:: s=20; void main() { cout< Re: A simple question about variable Maer7277-Nov-01 20:18 Maer727 7-Nov-01 20:18  - Thanks, Alvaro pal! - Take a look at the following program: #include using namespace std; class a{ private: static const int s ; int i[s]; }; const int a:: s=20; void main() { cout< Adding color text in dos based C++ 6-Nov-01 17:00 6-Nov-01 17:00  Is this at all possible? I cannot use MFC or anything like that. Re: Adding color text in dos based C++ Nish Nishant6-Nov-01 21:13 Nish Nishant 6-Nov-01 21:13  SetConsoleTextAttribute Nish Sonork ID 100.9786 voidmain any way of dynamically adding and removing pages from a CPropertySheet??? DanYELL6-Nov-01 13:15 DanYELL 6-Nov-01 13:15  For a CPropertySheet, I can add a page in the constructor by typing AddPage. I can remove a page in the destructor by typing RemovePage. I read a comment from someone that said you can only call AddPage in the constructor. Is it possible to add and remove pages from a CPropertySheet dynamically? Is it possible/okay to add a button called Add Pages where they click on it and pages are added? Any thoughts? Any response any one can give me will be greatly appreciated. Sincerely, Danielle (an overworked graduate student) Re: any way of dynamically adding and removing pages from a CPropertySheet??? Mike Burston6-Nov-01 17:04 Mike Burston 6-Nov-01 17:04  Uou can definitely call 'Addpage' and 'RemovePage' at anytime - we have done this in a number of PopertySheet based dialogs (both normal and wizard mode) ----------------------------- "I leave no turn un-stoned. " - John Simmons, Nov 6 2001 ----------------------------- Re: any way of dynamically adding and removing pages from a CPropertySheet??? Tomasz Sowinski7-Nov-01 1:06 Tomasz Sowinski 7-Nov-01 1:06  Yes, you can do that. Additionally, you may send the PSM_RECALCPAGESIZES to the property sheet when you add/remove pages. You'll find more info about the message in MSDN. Tomasz Sowinski -- http://www.shooltz.com Startup Peter Liddle6-Nov-01 11:30 Peter Liddle 6-Nov-01 11:30  Hey Guys I need a way to put a program into the start up procedure so when windows boots up next time it starts this program. Any Ideas Cheers Peter Re: Startup Ravi Bhavnani6-Nov-01 11:42 Ravi Bhavnani 6-Nov-01 11:42  If you're running NT/2000/XP, you'll need to make it a service. For Win9x/ME, you could add it to the "Run" key in the registry or place a shortcut to it in the Startup folder. /ravi "There is always one more bug..." http://www.ravib.com ravib@ravib.com Re: Startup Anders Molin6-Nov-01 11:46 Anders Molin 6-Nov-01 11:46  The "run" key in the registry works perfectly fine in NT/2000/XP You can't make a normal application, with a GUI, a service. There's a big difference between services and "normal" applications... - Anders Money talks, but all mine ever says is "Goodbye!"

Last Visit: 31-Dec-99 18:00     Last Update: 6-Jun-24 18:10 Refresh ᐊ Prev1...17794177951779617797177981779917800178011780217803 Next ᐅ

General    News    Suggestion    Question    Bug    Answer    Joke    Praise    Rant    Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.