Hi,
When a RichTextBox control doesn't have focus, it DOES NOT scroll to the
last line that is added; however, if it does have focus, it WILL scroll to
the last line added. I want to stop and start this behavior at will. When
I stop the behavior, this will give users a chance to examine the text that
is at the top of the document while new text is being added at the bottom.
I have tried inheriting from the RichTextBox control and overriding the
WndProc method to capture incoming WM_VSCROLL messages, but that doesn't
seem to be what is controlling the scroll action. I have placed Trace
statements in the WndProc method to look for the message in question, but I
can't seem to find it. I am beginning to believe that this is the wrong
way to go about solving this problem, so I decided to post to the group and
see if anybody has done or knows how to do this.
By the way, does anybody know where I can find a complete list of windows
messages (e.g. WM_VSCROLL) with their associated numeric values. I have
tried searching the documentation at Microsoft's web site, but it's like
trying to find a needle in a haystack. You would think that you could find
a list in the "See Also" links at the bottom of the SendMessage and
PostMessage methods or at least by looking up a known message name like
WM_VSCROLL, but that would be too easy.
Thanks,
Dave
4  3624 
You can get the message values from the header files installed with VC.
D. Yates wrote: Hi,
When a RichTextBox control doesn't have focus, it DOES NOT scroll to the
last line that is added; however, if it does have focus, it WILL scroll to
the last line added. I want to stop and start this behavior at will. When
I stop the behavior, this will give users a chance to examine the text that
is at the top of the document while new text is being added at the bottom.
I have tried inheriting from the RichTextBox control and overriding the
WndProc method to capture incoming WM_VSCROLL messages, but that doesn't
seem to be what is controlling the scroll action. I have placed Trace
statements in the WndProc method to look for the message in question, but I
can't seem to find it. I am beginning to believe that this is the wrong
way to go about solving this problem, so I decided to post to the group and
see if anybody has done or knows how to do this.
By the way, does anybody know where I can find a complete list of windows
messages (e.g. WM_VSCROLL) with their associated numeric values. I have
tried searching the documentation at Microsoft's web site, but it's like
trying to find a needle in a haystack. You would think that you could find
a list in the "See Also" links at the bottom of the SendMessage and
PostMessage methods or at least by looking up a known message name like
WM_VSCROLL, but that would be too easy.
Thanks,
Dave
someone just posted this link as well for a question I had asked and the
website has EVERYTHING as far as message values etc go: www.pinvoke.net
Benny Raymond wrote: You can get the message values from the header files installed with VC.
D. Yates wrote:
Hi,
When a RichTextBox control doesn't have focus, it DOES NOT scroll to
the last line that is added; however, if it does have focus, it WILL
scroll to the last line added. I want to stop and start this behavior
at will. When I stop the behavior, this will give users a chance to
examine the text that is at the top of the document while new text is
being added at the bottom.
I have tried inheriting from the RichTextBox control and overriding
the WndProc method to capture incoming WM_VSCROLL messages, but that
doesn't seem to be what is controlling the scroll action. I have
placed Trace statements in the WndProc method to look for the message
in question, but I can't seem to find it. I am beginning to believe
that this is the wrong way to go about solving this problem, so I
decided to post to the group and see if anybody has done or knows how
to do this.
By the way, does anybody know where I can find a complete list of
windows messages (e.g. WM_VSCROLL) with their associated numeric
values. I have tried searching the documentation at Microsoft's web
site, but it's like trying to find a needle in a haystack. You would
think that you could find a list in the "See Also" links at the bottom
of the SendMessage and PostMessage methods or at least by looking up a
known message name like WM_VSCROLL, but that would be too easy.
Thanks,
Dave
I think I posted this to the wrong group.....
I will try posting this to
microsoft.publi c.dotnet.framew ork.windowsform s.controls
Dave
This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: Rachel Suddeth |
last post by:
I have the index of a line in the Lines array of a RichTextBox. I would like
to have it scroll so that line displays at the top. Is there no way to do
this?
The only way I can see to make it scroll is with ScrollToCaret(). But I
don't know how to set the "caret" to a particular line.
Any suggestions?
-Rachel
|
by: Grant Schenck |
last post by:
I have code where I append text to a rich text box. I grab the current
SelectionStart and SelectionLength before I append the text and then after I
reset the SelectionStart and SelectionLength to their former values. I then
do a ScrollToCaret() to insure that the selection still shows on the screen
(because the append text moves it.)
Now, it all works but I get a noticible flash as I append the text and
apparently the control updates....
|
by: Jean-Francois Lord |
last post by:
Hello,
I have a multithreaded windows app that has a RichTextBox acting as an
output console for the worker threads. I need a way of scrolling down to the
bottom of the RichTextBox as text is added without stealing the focus from
my other controls.
RichTextBox.Focus()
RichTextBox.ScrollToCarret()
|
by: JonnyT |
last post by:
I searched high and low for an answer on how to auto scroll a
richtextbox and now I finally have it. Since it took me a while to
get a good efficient way of doing it that didn't require focus to the
control or the scrolltocaret method I decided that it would be worth
posting to anyone who might have similar concerns. For the record
this works well in an environment where you cannot have focus going to
the richtextbox....such as a chat...
|
by: Richard |
last post by:
When you give focus to a RichTextBox, then it goes to the textCursor, but i
don't want to give the richtextbox focus, cause there is being written a lot
in it, and I have to do something else at the same time, then if I don't
give it focus, and I add some text to it, then it don't automaticly scrolls
down to the textcursor, is there a way to make the RichTextBox scroll down
to the textcursor, without giving it focus??
Richard
| | |
by: Daniel Friend |
last post by:
How do I scroll to the bottom of RichTextBox
Currently tried
RichTextBox1.SelectionStart=len(RichTextBox1.text)
RichTextBox1.ScrollToCaret
This does not work.
What is the best what to accomplish this
|
by: Brian Tkatch |
last post by:
I have a form with two DataGrids, which are kept in sync manually via
Stored PROCEDURE calls. That is, when a record is selected on the first
grid, a stored PROCEDURE is CALLed to Fill() the next second DataGrid's
DataSource. All that works very well. And, when there are no records to
display, it is simply left blank.
My issue is that when i scroll the first one, sometimes the second grid
shows a bunch of null values (a "new" record).
...
|
by: DrifterKona |
last post by:
I have a form with 4 pages. I'm not sure of the correct name, but I
will refer to the tabs at the top of the form that list the names of
the four pages as the "page tabs".
When the form opens, the body of the form automatically scrolls down to
the first tab stop on the form. This causes the body of the form to
scroll down so far that the page tabs are no longer viewable. That is
undesirable for two reasons. First, if a user wants to...
|
by: dotnetnoob |
last post by:
i have a Dialog form with richtextbox that basically display a legal
agreement and when the user drag the scroll thumb down to the end of
scrolling which suppose to mean the user have read it then the checkbox is
enabled for the user to tick off (I agree) and the next button is enabled for
user to click next. the richtextbox vscroll event only fire when user click
on the scrollthumb and that's it. how do i implement it when user drag the...
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
| | |
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
| | |
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
| |
