I have two questions that I was hoping to get some input on:
1. How can I synchronize the horizontal scrolling of two controls on my
form? I realize that I will have to use the Windows API to do this, but I
haven't been very successful in determining exactly how. Are there any good
API references for .NET developers?
2. What would be the most efficient way to paint the background of a
scrollable user control in such a way as to suggest columns (using lines or
vertical bars of color, etc.) ?
If anyone can point me in the right direction, I would really appreciate it!
Thanks!
2  1228 
Craig,
Depending on the controls that you are trying to scroll, you might be
able to use a managed interface. Generally speaking, you have to make sure
that the controls share the same dimensions if you want to do this.
Assuming that the controls fire the standard WM_VSCROLL and WM_HSCROLL
messages, you can catch those for your controls (you would have to hook into
the message loop) and then fire that to the other control with the same
parameters. It should cause the other control to scroll at the same time.
Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m
"craig" <e@mail.com> wrote in message
news:eV******** ******@TK2MSFTN GP14.phx.gbl... I have two questions that I was hoping to get some input on:
1. How can I synchronize the horizontal scrolling of two controls on my
form? I realize that I will have to use the Windows API to do this, but I
haven't been very successful in determining exactly how. Are there any
good API references for .NET developers?
2. What would be the most efficient way to paint the background of a
scrollable user control in such a way as to suggest columns (using lines
or vertical bars of color, etc.) ?
If anyone can point me in the right direction, I would really appreciate
it!
Thanks!
Thanks Nicholas!
I have managed to hook into the message loop as you described by overriding
the WndProc method so that I can catch the WM_HSCROLL message. However, I
have not figured out how to fire this to the other control. Do you know how
that is done?
Thanks!!
Craig
"Nicholas Paldino [.NET/C# MVP]" <mv*@spam.guard .caspershouse.c om> wrote in
message news:u3******** ********@TK2MSF TNGP10.phx.gbl. .. Craig,
Depending on the controls that you are trying to scroll, you might be
able to use a managed interface. Generally speaking, you have to make
sure that the controls share the same dimensions if you want to do this.
Assuming that the controls fire the standard WM_VSCROLL and WM_HSCROLL
messages, you can catch those for your controls (you would have to hook
into the message loop) and then fire that to the other control with the
same parameters. It should cause the other control to scroll at the same
time.
Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m
"craig" <e@mail.com> wrote in message
news:eV******** ******@TK2MSFTN GP14.phx.gbl...I have two questions that I was hoping to get some input on:
1. How can I synchronize the horizontal scrolling of two controls on my
form? I realize that I will have to use the Windows API to do this, but
I haven't been very successful in determining exactly how. Are there any
good API references for .NET developers?
2. What would be the most efficient way to paint the background of a
scrollable user control in such a way as to suggest columns (using lines
or vertical bars of color, etc.) ?
If anyone can point me in the right direction, I would really appreciate
it!
Thanks!
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