C / C++ / MFC

Re: How to invoke an application executable from DLL.?

20-Jul-06 21:18

This is one but the thing is ...

the sequence is as follows

My Application --->MFC EXTENSION DLL -CALLING OPEN API in dll->another application should open as well as I want to commmunicate between these two applications.

I will be very thankfull to u and waitinfg for u r reply.

Thanks......

Ashok Reddy.

ashokbngr20-Jul-06 21:24

Re: How to invoke an application executable from DLL.?

20-Jul-06 21:24

Naveen20-Jul-06 21:45

Re: How to invoke an application executable from DLL.?

20-Jul-06 21:45

ashok3450 wrote:
I want to commmunicate between these two applications.

what do u want to communicate?

nave

ashokbngr20-Jul-06 23:05

Re: How to invoke an application executable from DLL.?

20-Jul-06 23:05

I want to send messages snd receive messages between applications.

Plz help me out.

Thanks

Ashok Reddy.

Naveen20-Jul-06 23:17

Re: How to invoke an application executable from DLL.?

20-Jul-06 23:17

if u know the name of a window in the process ur going to create, u can get the handle of the window using the FindWindow() function, Once u get the window handle, U can send and receive messages.

nave

ashokbngr20-Jul-06 23:20

Re: How to invoke an application executable from DLL.?

20-Jul-06 23:20

Thanks for early reply..

can u send me address or code related to that i.e sending and receivinng messages.

Ashok Reddy.

Naveen20-Jul-06 23:39

Re: How to invoke an application executable from DLL.?

20-Jul-06 23:39

i didn't find any links...But it simple...

1. Use RegisterWindowMessage() to register a type of message.
2. Use FindWindow() to find the Window u wanted.
3. Then send the message as usaaal using the postmessage or sendmessage.
4. Overide the WindowProc funtion of the window to which u send the message. Inside that u can check whether the message is same as as that u send using the post/send message.

Cool | :cool:

nave

Renjith Ramachandran19-Jul-06 23:58

Renjith Ramachandran

19-Jul-06 23:58

CreateProcess() function would help you

Loka Samastha Sukhino Bhavanthu..!!!
( May all beings be happy and free )

Re: How to invoke an application executable from DLL.?

Hamid_RT20-Jul-06 1:01

Hamid_RT

20-Jul-06 1:01

if you want to launch a application See http://www.codeproject.com/system/newbiespawn.asp[^]

whitesky

Re: How to invoke an application executable from DLL.?

ashokbngr20-Jul-06 21:10

Re: How to invoke an application executable from DLL.?

20-Jul-06 21:10

This is nice article but the thing is ...

the sequence is as follows

My Application --->MFC EXTENSION DLL -CALLING OPEN API in dll->another application should open as well as I want to commmunicate between these two applications.

I will be very thankfull to u and waitinfg for u r reply.

Thanks......

Ashok Reddy.

ThatsAlok21-Jul-06 3:42

ThatsAlok

21-Jul-06 3:42

ashok3450 wrote:

My Application --->MFC EXTENSION DLL -CALLING OPEN API in dll->another application should open as well as I want to commmunicate between these two applications.

you have to interprocess communication between them!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
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retrieve process parameter

rgminfo19-Jul-06 22:39

rgminfo

19-Jul-06 22:39

Hello,

Does anybody know if it's possible to retrieve the parameters given in the command line from another process ?

I'm trying to write a program which kill and restart a process with same parameters the user give at the first launch. I can have the proces id with EnumProcesses but i can't find how to retrieve the parameters.

Regards.

Re: retrieve process parameter

eusto19-Jul-06 22:57

eusto

19-Jul-06 22:57

If you have access to that process either log it's start args or write a routine that exports them to the process you use to kill the first one.

For a general process i don't think you can do that Frown | :(

Re: retrieve process parameter

Naveen19-Jul-06 23:16

Re: retrieve process parameter

19-Jul-06 23:16

rgminfo wrote:
if it's possible to retrieve the parameters given in the command line from another process ?

check this

http://www.codeproject.com/threads/CmdLine.asp[^]

nave

rgminfo19-Jul-06 23:47

rgminfo

19-Jul-06 23:47

Thanks a lot, i'll try this .

conection with sql

ashish dogra19-Jul-06 22:36

ashish dogra

19-Jul-06 22:36

how to connect vc++ dialog based application with sql database
with the help of programming
as we connect mysql with real_connect.
thanks

Ashish Dogra
MCA
Noida

Re: conection with sql

eusto19-Jul-06 22:53

eusto

19-Jul-06 22:53

Which sql server? The type of the app does not really matter...But there are lots of ways you can connect to a sql database and lots of types of sql servers out there...you have to be more speciffic

Re: conection with sql

Hamid_RT20-Jul-06 1:02

Hamid_RT

20-Jul-06 1:02

You can articlesSql Server[^] maybe it is some helpful to you

whitesky

external dependencies

thathvamsi19-Jul-06 22:32

thathvamsi

19-Jul-06 22:32

hi all,
how to add external dependencies for a project?
I need to add a header file for the project as a external dependency. How to I add it?

Re: external dependencies

Cedric Moonen19-Jul-06 22:42

Cedric Moonen

19-Jul-06 22:42

Go in the project settings, C++ tab, general category and there, you have "Additional Include Directory". Put the path to the folder which contains the header file there.
Then, you can simply add the header to your project.

Another solution (much simpler) is simply to copy the header file into the folder which contains the sources of your program and add it to your project.

Cédric Moonen
Software developer

Charting control

Templates

Russell^'19-Jul-06 21:54

Russell^'

19-Jul-06 21:54

Hi,
Is it possible to use tests on the template typename(during compile, not in runtime)?
Something like:

template<typename T> class MyClass{<br />
...<br />
T m_Var;<br />
...<br />
void fun(){<br />
#if T==double<br />
....<br />
#else<br />
..<br />
#endif<br />
}<br />
}

Cheers,
Russell

toxcct19-Jul-06 21:59

toxcct

19-Jul-06 21:59

no, because T is assigned at runtime, while #if is evaluated before the compilation

BTW, there's a mechanism called templates specializations, which allow you to design the templated class for a particuliar template parameter...

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Russell^'19-Jul-06 22:25

Russell^'

19-Jul-06 22:25

toxcct wrote:
T is assigned at runtime

I'm not sure, are you? templates are expanded during compilation.

Elseway have you got a good link to learn something on "templates specializations".

Thanks.

Cheers,
Russell

toxcct19-Jul-06 22:35

toxcct

19-Jul-06 22:35

hum, ok, maybe not at runtime, but at compile time at least.

unfortunately, preprocessing directives are executed BEFORE the compilation... so, no chance to do it like this

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]