hello all,
I am working on a project related to Internet Explorer. I want my
application to be invoked by a keypress( single key stroke or a
combination). But this must get invoked only when the IE browser is
open. I learnt that SetWindowsHookE x must be used along with few
others. But my doubt is how to call my application? Can i implement the
keyboard hooks related methods in the same project as my application or
should this be else where(i.e as a new project)? wats the difference
between the keyboard hooks and hot keys... i have been serching abt
this for a long time that right now i am confused.
I am new to .NET and all these window hooks. Please help me.
thanks,
hema
13  3200 
Your app has a dependency upon Internet Explorer. This means that you should
probably build your app so that it launches Internet Explorer when it
starts, rather then depending upon the user to launch Internet Explorer.
Otherwise, this is not something that you can fix by modifying your app, as
your app hasn't started yet before Internet Explorer is required to be
launched.
--
HTH,
Kevin Spencer
Microsoft MVP
Professional Numbskull
Show me your certification without works,
and I'll show my certification
*by* my works.
"Hema" <he*********@ya hoo.com> wrote in message
news:11******** **************@ i40g2000cwc.goo glegroups.com.. . hello all,
I am working on a project related to Internet Explorer. I want my
application to be invoked by a keypress( single key stroke or a
combination). But this must get invoked only when the IE browser is
open. I learnt that SetWindowsHookE x must be used along with few
others. But my doubt is how to call my application? Can i implement the
keyboard hooks related methods in the same project as my application or
should this be else where(i.e as a new project)? wats the difference
between the keyboard hooks and hot keys... i have been serching abt
this for a long time that right now i am confused.
I am new to .NET and all these window hooks. Please help me.
thanks,
hema
Hello, Kevin!
KS> Your app has a dependency upon Internet Explorer. This means that you
KS> should probably build your app so that it launches Internet Explorer
KS> when it starts, rather then depending upon the user to launch Internet
KS> Explorer. Otherwise, this is not something that you can fix by
KS> modifying your app, as your app hasn't started yet before Internet
KS> Explorer is required to be launched.
The solution here can be Browser Helper Object, that will 'live' inside IE and notify main app about different events.
--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot.com
hi,
Thanks for the reply! let me explain my project to u first. This is
called Talkative Browser. I have added a button to the IE toolbar. When
the button is pressed,it retrieves the URL of the current web page and
then extracts the HTML source code.From this the Text area is parsed
and sent to MS speech engine to be read out. This is working well with
button click. I want the same functionlity getting invoked when i press
a key. my questions are:
1.is it possible to add a keyboard hook to this project.
2.i cant jus invoke IE , its not my functionality, only after a URL is
launched i can make it speak.so how do i proceed in here.
3.My query earlier was how to add the hook procedure function to the
SetWindowsHookE x in this case. The work starts only after the button is
pressed. i.e Exec of IOleCommandTarg et initiates the work after the
button click.
this is my problem.Once again thanks for the reply.
Hema
Yeah, I misunderstood the question. I thought he meant that his app must
start up IE in order to work. It sounds more like he wants to add a keyboard
shortcut to IE to start his app.
--
HTH,
Kevin Spencer
Microsoft MVP
Professional Numbskull
Show me your certification without works,
and I'll show my certification
*by* my works.
"Vadym Stetsyak" <va*****@ukr.ne t> wrote in message
news:%2******** ********@TK2MSF TNGP11.phx.gbl. .. Hello, Kevin!
KS> Your app has a dependency upon Internet Explorer. This means that you
KS> should probably build your app so that it launches Internet Explorer
KS> when it starts, rather then depending upon the user to launch Internet
KS> Explorer. Otherwise, this is not something that you can fix by
KS> modifying your app, as your app hasn't started yet before Internet
KS> Explorer is required to be launched.
The solution here can be Browser Helper Object, that will 'live' inside IE
and notify main app about different events.
--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot.com
Hi Hema,
The following articles may be helpful: http://www.codeproject.com/system/hooksys.asp http://www.codeproject.com/csharp/globalsystemhook.asp
--
HTH,
Kevin Spencer
Microsoft MVP
Professional Numbskull
Show me your certification without works,
and I'll show my certification
*by* my works.
"Hema" <he*********@ya hoo.com> wrote in message
news:11******** **************@ j33g2000cwa.goo glegroups.com.. . hi,
Thanks for the reply! let me explain my project to u first. This is
called Talkative Browser. I have added a button to the IE toolbar. When
the button is pressed,it retrieves the URL of the current web page and
then extracts the HTML source code.From this the Text area is parsed
and sent to MS speech engine to be read out. This is working well with
button click. I want the same functionlity getting invoked when i press
a key. my questions are:
1.is it possible to add a keyboard hook to this project.
2.i cant jus invoke IE , its not my functionality, only after a URL is
launched i can make it speak.so how do i proceed in here.
3.My query earlier was how to add the hook procedure function to the
SetWindowsHookE x in this case. The work starts only after the button is
pressed. i.e Exec of IOleCommandTarg et initiates the work after the
button click.
this is my problem.Once again thanks for the reply.
Hema
Hello,
Thanks for the links u have provided me.I went thru them.The second article
on Global hooks was very useful.I understood most of the stuff in there.The
first article was highly overwhelming for me. I am new to Window programming
environment and cudn't get wat was there in it. One thing i got was
something related to BHO. I have actully done my Button click invokation and
related works in IObjectWithSite and IOleCommandTarg et only. So it was
assuring in some way.
Now as for my doubts after reading the articles are these:
1.As u know, i want my application to detect the keypress after IE is opened.
How to do this? BHO?
2.Is wat i am trying to do some way related to application specific hooks?
(not surely System hooks?)
3.I learnt that SetWindowsHooks Ex, InstallHooks,.. ... are needed for my work.
How will i specify that i want the application i.e. my dll
(TalkativeBrows er.dll- the one i have developed) to get invoked with the
HookProc?
4.Should the hook procedure i will developing be in a separate project?
I might have repeated wat i have been saying in my previous queries. Sorry
abt that. Thats b'coz i am still not able to grasp the idea.
Please help me.
Thanks,
Hema
Hello,
I have used the IObjectWithSite and IOleCommandTarg et for my applciation
already.Will this hook that i am adding will come in the IObjectWithSite
again.How different is this going to be?
Thanks,
Hema
I think you are thinking along the right lines with respect to a Browser
Helper Object. There are several different ways to detect a keypress
globally, but that may not be what you really want, and since the dependency
is upon the browser, a BHO would be the most efficient that I can think of.
In addition, you may only want to detect the keypress when the browser has
the focus, which simplifies the process a great deal, since you don't really
need a system hook, but only a hook into the browser's message loop. Is that
the case?
--
HTH,
Kevin Spencer
Microsoft MVP
Professional Numbskull
Show me your certification without works,
and I'll show my certification
*by* my works.
"GEETHA" <LM**@EMAIL.COM > wrote in message
news:00******** *************** *******@ureader .com... Hello,
Thanks for the links u have provided me.I went thru them.The second
article
on Global hooks was very useful.I understood most of the stuff in
there.The
first article was highly overwhelming for me. I am new to Window
programming
environment and cudn't get wat was there in it. One thing i got was
something related to BHO. I have actully done my Button click invokation
and
related works in IObjectWithSite and IOleCommandTarg et only. So it was
assuring in some way.
Now as for my doubts after reading the articles are these:
1.As u know, i want my application to detect the keypress after IE is
opened.
How to do this? BHO?
2.Is wat i am trying to do some way related to application specific hooks?
(not surely System hooks?)
3.I learnt that SetWindowsHooks Ex, InstallHooks,.. ... are needed for my
work.
How will i specify that i want the application i.e. my dll
(TalkativeBrows er.dll- the one i have developed) to get invoked with the
HookProc?
4.Should the hook procedure i will developing be in a separate project?
I might have repeated wat i have been saying in my previous queries. Sorry
abt that. Thats b'coz i am still not able to grasp the idea.
Please help me.
Thanks,
Hema
hello kevin,
this is Geetha only.I have got some problem with the logging in with my id,..
.. dont know the problem,since i am due to complete my project in few days, i
have created this id.Sorry for the trouble.
Has for the question u have asked.If u mean to say that this message loop
means informing the browser that my application must be invoked when a key
is pressed,then yes thats wat i want.
i have started with the BHO stuff.i think i will call the Hooks related
functionalities i.e. Installhook in IObjectWithSite .SetSite(). then it will
go on as a normal keyboard hook.But how will i call my application's dll
from the HookProc available? mine is not a function right. My application
also uses this same interface to do further processing.i dont know how to do
this and i am struck here.
Hope u get my id and reply back.
Thanks and regards,
geetha
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From: Salim Ansari
Can anybody please give me sample code in C# to use keyboard hooks in C#?
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Salim
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