声明
FUNCTION ulong ShowScrollBar(ulong hwnd,ulong wBar,ulong bShow) LIBRARY "user32.dll"
调用
constant long SB_HORZ =0
constant long SB_VERT =1
constant long SB_BOTH =3
ShowScrollBar(Handle(TreeView1),SB_HORZ,0);//隐藏水平滚动条
ShowScrollBar(Handle(TreeView1),SB_VERT,0);//隐藏垂直滚动条
ShowScrollBar(Handle(TreeView1),SB_BOTH,0);//隐藏所有滚动条
定义两个实例常量
constant int GWL_STYLE = -16
constant uLONG TVS_NOHSCROLL = 32768
定义两个外部函数声明
Function long GetWindowLong (ulong hWnd, int nIndex) Library "USER32.DLL " Alias for "GetWindowLongA "
Function long SetWindowLong (ulong hWnd, int nIndex, long dwNewLong) Library "USER32.DLL " Alias for "SetWindowLongA "
在程序中按照以下方法写
long ll_TVStyle
ll_TVStyle = GetWindowLong(Handle(tv_1),GWL_STYLE)
ll_TVStyle += TVS_NOHSCROLL
SetWindowLong(Handle(tv_1),GWL_STYLE,ll_TVStyle)