Author: Tomas Rutkauskas

I want to put two buttons as a scrollbar to my grid instead of using the default 
Delphi windows scrollbar. I suppose that I should handle the messages like 
WM_VSCROLL and WM_HSCROLL and setting my grid.Scrollbars := none

Answer:

You should send these messages to the grid on your button presses, e.g. for a line 
up:

1   { ... }
2   with stringgrid1 do
3   begin
4     perform(WM_VSCROLL, SB_LINEUP, 0);
5     perform(WM_VSCROLL, SB_ENDSCROLL, 0);
6   end;
7   
8   //or use:
9   
10  procedure buttonupClick(sender);
11  begin
12    SendMessage(Grid1.Handle, WM_VSCROLL, SB_LINEUP, 0)
13  end;