Hi,
Is anyone able to give me an example on how to scroll the contents of
a ListBox without forcing the user to click on the scroll up/down
internal buttons?
=============== ===============
I am wanting to draw my own non-client area (including the scrollbar).
I have had the following ideas but each idea has failed:
1) Turn off the scrollbar using the "ShowScroll Bar" API
-Turns off the scrollbar but no scrollbar functionality (for
mousescroll etc.)...
-Requires manually scrolling the Listbox contents
2) Use WndProc to override WM_NCPAINT
-The scrollbar and its buttons are still painted whenever the
user clicks on it (WM_NCPAINT is not fired)
-It is likely that the paint is occurring within the
WM_NCLBUTTONDOW N event
-Will have to override WM_NCLBUTTONDOW N
3) Use WndProc to override WM_VSCROLL
-Not able to scroll contents (what actually happens in
WM_SCROLL? I am assuming it calls ScrollWindowEx)
=============== ===============
It would be most logical to handle the WM_NCPAINT and WM_NCLBUTTONDOW N
events so that there is no redraw of the scrollbar and then fire my
own WM_VSCROLL event.... then handle my own scrollbar and scrolling
routines.
Either way... does anyone please have an example of how to use
ScrollWindowEx in VB .Net???
/evan
Is anyone able to give me an example on how to scroll the contents of
a ListBox without forcing the user to click on the scroll up/down
internal buttons?
=============== ===============
I am wanting to draw my own non-client area (including the scrollbar).
I have had the following ideas but each idea has failed:
1) Turn off the scrollbar using the "ShowScroll Bar" API
-Turns off the scrollbar but no scrollbar functionality (for
mousescroll etc.)...
-Requires manually scrolling the Listbox contents
2) Use WndProc to override WM_NCPAINT
-The scrollbar and its buttons are still painted whenever the
user clicks on it (WM_NCPAINT is not fired)
-It is likely that the paint is occurring within the
WM_NCLBUTTONDOW N event
-Will have to override WM_NCLBUTTONDOW N
3) Use WndProc to override WM_VSCROLL
-Not able to scroll contents (what actually happens in
WM_SCROLL? I am assuming it calls ScrollWindowEx)
=============== ===============
It would be most logical to handle the WM_NCPAINT and WM_NCLBUTTONDOW N
events so that there is no redraw of the scrollbar and then fire my
own WM_VSCROLL event.... then handle my own scrollbar and scrolling
routines.
Either way... does anyone please have an example of how to use
ScrollWindowEx in VB .Net???
/evan