Re: problem with CAssynckSocket::Read - C / C++ / MFC Discussion Boards

joshfl26-Dec-02 5:36

26-Dec-02 5:36

hey, can anyone point me to any good interface tutorials that make apps like winapp possible, and that explain the lower-level details of whys and hows.... Im pretty sure I could hack something together but im sure i wouldnt know the most efficient way of doing this, and id like to know.
id like more knowledge on making my own custom looking windows, and more graphical control than i currently have.
I have alot of experience with file I/o , sockets / internet apps, data manipulation, but not as much in the way of GUI's except the MFC provided abstractions that are available, and i want more abilities than just the standard looking dialogs , SDI's , and MDI's. i can do all the common controls , just dont know enough windows API to get that kind of control to get the custom looking windows...

i have sort of a brain block on the whole gui thing im trying to overcome , so id appreciate the tips / resources anybody can provide.

Re: interfaces...

AlexO26-Dec-02 6:30

AlexO

26-Dec-02 6:30

check out http://www.amazon.com/exec/obidos/ASIN/157231995X/qid=1040923519/sr=2-3/ref=sr_2_3/104-4316939-3607113 - he expanses much more than you usually needed for GUI programmers.

http://www.amazon.com/exec/obidos/tg/detail/-/0130166294/ref=pd_sim_books_4/104-4316939-3607113?v=glance&s=books - this one is purely MFC, it is pretty good

also try MSDN tutorials like ATLFire and MFCFire.
Depending on your level try just any MFC tutorials, most of them are not deep, but it is a good start.

AlexO

Accelerator and Dll problem

Ricky_TheBard26-Dec-02 5:29

Ricky_TheBard

26-Dec-02 5:29

Hy everybody!
I have a litle doubt...
I maked one Dll with an Dialog and try to use the "&" in the front of the string of my button, but when the window is open, I try to use the Alt+Key (Alt + T for exemple) and it doesn't work... Confused | :confused:

Does anyone have any idea?

thanks all for the attention!
Florianópolis - Santa Catarina - Brasil

Ricky

Re: Accelerator and Dll problem

Ricky_TheBard26-Dec-02 6:09

Ricky_TheBard

26-Dec-02 6:09

Hy,
I call my dialog with DoModal(), and the Accelerator works... I don't know why... Unsure | :~

thanks all..

Ricky

Re: Accelerator and Dll problem

Michael Dunn26-Dec-02 6:44

Michael Dunn

26-Dec-02 6:44

The message loop of the EXE that is using the DLL needs to call IsDialogMessage() in order for the mnemonic keys (and others, like TAB to move between controls) to work.

--Mike--
If it doesn't move and it should: WD-40. If it moves and it shouldn't: duct tape.

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Re: Accelerator and Dll problem

Ricky_TheBard26-Dec-02 7:07

Ricky_TheBard

26-Dec-02 7:07

Do you know where I can see some example? Smile | :)

thank's

Ricky

problem with CAssynckSocket::Read

cosmin_radut26-Dec-02 5:21

cosmin_radut

26-Dec-02 5:21

In the Client part of my Client/Server aplication i get an assertion fail when i call the Read method. The same function works in the Server part. Please help me!!!

Re: problem with CAssynckSocket::Read

RobJones26-Dec-02 5:30

RobJones

26-Dec-02 5:30

Can you post some code?

Re: problem with CAssynckSocket::Read

Anonymous26-Dec-02 5:48

Anonymous

26-Dec-02 5:48

Sorry I'm not home now. But i call Read in the dialog class(from an CMySocket object) like nError=m_sSocket.Read(...) and at debugtime it shows debug assertion fail (nError doesn't take any error value)

Re: problem with CAssynckSocket::Read

RobJones26-Dec-02 6:42

RobJones

26-Dec-02 6:42

Anonymous wrote:
nError=m_sSocket.Read(...)

the value returned from the Read function is the ammount of data read it's not really used as an error code.. it could be (SOCKET_ERROR).. but to catch error codes in read you should do a

m_sSocket.Read(..)
int nError = WSAGetLastError();

Hope this helps.. If not when you get home you could post some of the actual code.. maybe we can see what the issue is.

Rob

Font Width !

Hadi Rezaee26-Dec-02 4:38

Hadi Rezaee

26-Dec-02 4:38

How can i get REAL width of the font ?
I've tried this code but it returns me zero !

LOGFONT logfont;
pFont->GetLogFont(&logfont);

int i = logfont.lfWidth;

// i is always ZERO

What's wrong ?

My month article: Game programming by DirectX by Lan Mader.
Please visit in: www.geocities.com/hadi_rezaie/index.html

Hadi Rezaie

Re: Font Width !

Joaquín M López Muñoz26-Dec-02 4:56

Joaquín M López Muñoz

26-Dec-02 4:56

This means that the default aspect ratio is used, which alas gives you little info. Take a look at GetCharWidth32, it could be what you need.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: Font Width !

Todd Smith26-Dec-02 5:39

Todd Smith

26-Dec-02 5:39

GetTextMetrics might help.

Todd Smith

Problem to create an .mdb File using ODBC

Cheickna26-Dec-02 3:33

Cheickna

26-Dec-02 3:33

Hi,

I want to create an .mdb file using ODBC like :

  <br />
  CDatabase database;<br />
  CString sDriver = "Microsoft Access Driver (*.mdb)";  <br />
  CString sSql;<br />
  CString strSQL;<br />
    <br />
  <br />
  // Build the creation string for access without DSN       <br />
  sSql.Format("DRIVER={%s};DSN='';FIRSTROWHASNAMES=1;READONLY=FALSE;<br />
               CREATE_DB=\%s\;DBQ=%s",<br />
                sDriver, "F:\\TEMP\\DATABASE.MDB", "DATABASE");<br />
<br />
    // Create the database<br />
    if( database.OpenEx(sSql,CDatabase::noOdbcDialog) )<br />
    {<br />
       //...<br />
    }<br />

OpenEx function return the following error message :
"File ('inconnu') not found..... Connect string attribut non valid..."

Thank for help

How to write Skinnable application! It's answer!

jedyking26-Dec-02 2:43

jedyking

26-Dec-02 2:43

http://www.appspeed.com/

SkinMagic is a powerful library that changes the visual appearance of windows or dialogs, providing developers with full-featured support for 'application skins', or 'application look and feel'. SkinMagic makes it easy to create programs with visually stunning, fully interactive user interfaces.The interfaces can even be created or edited directly at runtime.

With SkinMagic you could make your program look exactly like it was from another OS, or create your own user WinAmp-like "skinned" interfaces, or just give it a different, distinctive look.

http://www.appspeed.com/

Speed your application develop

Re: How to write Skinnable application! It's answer!

Rickard Andersson²⁰26-Dec-02 2:56

Rickard Andersson²⁰

26-Dec-02 2:56

What's is your problem?
Does your app crash?

These forums are here for you when you don't understand something, need advice or if your code doesn't work as you want. So, this kind of question is not a question about a problem, it's advertising!

Rickard Andersson@Suza Computing
C# and C++ programmer from SWEDEN!
UIN: 50302279
E-Mail: nikado@pc.nu
Speciality: I love C#, ASP.NET and C++!

Re: How to write Skinnable application! It's answer!

Brian Delahunty26-Dec-02 3:11

Brian Delahunty

26-Dec-02 3:11

Please don't advertise products in these forums.

Regards,
Brian Dela Smile | :)

Re: How to write Skinnable application! It's answer!

Todd C. Wilson26-Dec-02 4:33

Todd C. Wilson

26-Dec-02 4:33

How to do it for free! Source code included! It's more powerful than a locomotive, and able to leap tall SPAM in a single function call! It's...
GUIGUI!

"Perhaps the truth is less interesting than the facts?" -- Amy Weiss, RIAA's Senior Vice President of Communications.
It's the new math! 421 == 156 !

Re: How to write Skinnable application! It's answer!

Todd Smith26-Dec-02 5:41

Todd Smith

26-Dec-02 5:41

Son of SerGio?

Todd Smith

Re: How to write Skinnable application! It's answer!

Jörgen Sigvardsson26-Dec-02 11:20

Jörgen Sigvardsson

26-Dec-02 11:20

Ssssh! You might awake the beast within him.

--
Only in a world this sh*tty could you even try to say these were innocent people and keep a straight face.

DC (Device Context) Quiestion !

HellShrimp4free26-Dec-02 2:25

HellShrimp4free

26-Dec-02 2:25

hi
i have a Device context. is there any way to findout if it change ?? (for example i foundout if a line drawn in it or any changes occures in it)

i want to Redraw a DC if it change. but first i have to findout if it change. Roll eyes | :rolleyes:

thnx

Re: DC (Device Context) Quiestion !

Mike Nordell26-Dec-02 6:24

Mike Nordell

26-Dec-02 6:24

It seems you don't really understand what a DC is. You can't draw lines in a DC, you can draw lines on a bitmap using a DC.

The DC is (among other things) more of a descriptor and abstraction layer of the target device and area.

If you however are sure no one else is selecting a new bitmap into the DC, you could possibly create two DIB sections, select one into the DC, select the other into a compatible DC, and blit the original bitmap into the second one. When you then want to check if anything has changed you can just memcmp the two memory areas.

It would probably be quite slow (I'd expect something like >5 milliseconds for just 640x480x24, even on a moderately fast machine), but short of alternatives it would at least work (maybe you'll have to use 32-bpp to not be bitten by DWORD-alignment and unspecified values at end of every line).

Re: DC (Device Context) Quiestion !

HellShrimp4free26-Dec-02 8:02

HellShrimp4free

26-Dec-02 8:02

oh Jesus.

thanks for your Very Very Great and Compelete Answer Rose | [Rose]

i read your previus answer about Flicker. it was wonderfulllll
thank for your helppp.
-=Ehsan-de-Burge=-

Re: DC (Device Context) Quiestion !

Paul M Watt26-Dec-02 11:55

Paul M Watt

26-Dec-02 11:55

If you are using Memory Device contexts (where you select your own bitmap into the DC) then you can use this function to find the bounding box to the last changes since you ask for the changes:

::GetBoundsRect

However, if you are trying to detect changes on a window, then you will have to resort to other methods.

Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!

Merging Menus in MFC and OLE containers

super26-Dec-02 2:20

super

26-Dec-02 2:20

I have a an MFC application in which I insert and OLE object(Word Document)
Now the problem is that I have an "View" Menu for my application with 6 submenu...So when I insert the Ole object..My Application Menu dissappears and "View" Menu of Microsoft word appears.So any idea how to merge two "View" menus...Is urgent

cheers,
Super
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