C / C++ / MFC

CPallini5-May-10 22:20

5-May-10 22:20

GetWindowRect, please read carefully the documentation page.
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arun_pk5-May-10 23:39

arun_pk

5-May-10 23:39

thanks.... Smile | :)

CPallini6-May-10 0:13

6-May-10 0:13

You are welcome. Smile | :)

Michel Godfroid5-May-10 22:22

Michel Godfroid

5-May-10 22:22

GetWindowRect or GetWindowRgn

arun_pk5-May-10 23:39

arun_pk

5-May-10 23:39

thanks...... Smile | :)

Creating API for my application...

Stuart Dootson6-May-10 0:14

Stuart Dootson

6-May-10 0:14

Define window position...

If it's the window position relative to the screen top-left corner, use GetWindowRect

If it's the window position relative to its parent window's top-left corner, use GetClientRect

If it's for storing the window position so you can open it at the same place next time it's run, use GetWindowPlacement

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Shy Agam5-May-10 22:09

Shy Agam

5-May-10 22:09

Hello experts,

Developers sometimes provide ways for other programmers to interact with their application using API they've created.
Those API somehow "talk" with the original application they belong to.
So if application A was written by someone, application B (which was written by someone else) can do this "talking" with A using A's APIs.

I see no problem in developing a DLL which exposes functions.
But how do I go about making my DLL able to talk with my app when used by another external application?

Thanks in advance,
Shy.

Re: Creating API for my application...

CPallini5-May-10 22:14

Re: Creating API for my application...

5-May-10 22:14

Shy Agam wrote:
But how do I go about making my DLL able to talk with my app when used by another external application?

Michel Godfroid5-May-10 22:26

Michel Godfroid

5-May-10 22:26

Add interfaces direcly to your application, and expose them as COM objects. Registering the COM server will thereafter ensure that other applications can instantiate and talk to your application.

Dll pacement

krishna_CP5-May-10 21:56

krishna_CP

5-May-10 21:56

HI,

Is there any restriction that Dll should be in the same folder with Client exe or system folder ?

Can i place DLL any where and can Call ?

waiting for your precious advice.

Thanks,
Rayalu

CPallini5-May-10 22:12

5-May-10 22:12

See "Dynamic-Link Library Search Order" at MSDN.
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Cedric Moonen5-May-10 22:14

Cedric Moonen

5-May-10 22:14

Your dll has to be found by your application, which means that it should either be in the system folder or in the same folder of your application. However, if you explicitely load your dll (by using LoadLibrary), you can place it anywhere you want and specify the path of the dll in the call to LoadLibrary.

Cédric Moonen
Software developer

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CPallini5-May-10 22:18

5-May-10 22:18

Cedric Moonen wrote:
However, if you explicitely load your dll (by using LoadLibrary), you can place it anywhere you want and specify the path of the dll in the call to LoadLibrary.

I think you may do the same thing with implicit loaded DLLs if you specify the path of the dynamic libraries in the application mainifest (anyway I never made a test...).
Smile | :)

Covean5-May-10 22:31

Covean

5-May-10 22:31

It also works implicit if you specify the path.
I used it to reference to the debug or release version of some dll I wrote, depending on some project setting.

Greetings
Covean

«_Superman_»6-May-10 6:53

«_Superman_»

6-May-10 6:53

You can also use SetDllDirectory[^] to add a search path to locate the DLL.

«_Superman_»
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Unable to use same bitmap image

krishna_CP5-May-10 22:33

krishna_CP

5-May-10 22:33

Thanks Cédric Moonen

I did same.

Pryabu5-May-10 21:50

Pryabu

5-May-10 21:50

Hi all,

I have loaded a image to a bitmap object using LoadImage function. After i used the bitmap object to a button,whether can i use the same object to add image to other buttons. Will the object have the image handle? Can i use more than once that bitmap object. I tried to add that bitmap object to other buttons, its not woring.

Thanks,

Re: Unable to use same bitmap image

CPallini5-May-10 22:13

5-May-10 22:13

I guess the pronlem is in your code, but I can't see it... Smile | :)

Connect to Remote Server

mesajflaviu5-May-10 21:02

mesajflaviu

5-May-10 21:02

What I'm doing wrong , because LPHOSTENT lpHostEnt is null :

SOCKET m_hSocket;
LPHOSTENT lpHostEnt;
CString sServer = "smtp.gmail.com";

lpHostEnt = gethostbyname(sServer);
if(lpHostEnt == NULL)AfxMessageBox("lpHostEnt is NULL");

Richard MacCutchan5-May-10 21:31

Richard MacCutchan

5-May-10 21:31

There seems to be a problem with this address. Try accessing it via your browser to check if it is correct.

It's time for a new signature.

Michel Godfroid5-May-10 21:32

Michel Godfroid

5-May-10 21:32

We don't know, but the runtime knows! use WSAGetLastError and check the error code.

Moak5-May-10 21:34

Moak

5-May-10 21:34

A NULL return value usually means that you are looking up a non existent hostname. What does WSAGetLastError() return?

if(lpHostEnt == NULL)
{
 CString sOutput;
 sOutput.Format("Non existing hostname, error %d", ::WSAGetLastError());
 AfxMessageBox(sOutput);
}

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modified on Thursday, May 6, 2010 3:47 AM

mesajflaviu5-May-10 21:47

mesajflaviu

5-May-10 21:47

I will try this things , later , ( now I'm at job ) and surely reply ! Thank you !