/// <summary>
/// スクロール位置が先頭かの判定
/// </summary>
/// <param name="handle"></param>
/// <param name="kind"></param>
/// <returns></returns>
public static bool IsScrollBarFirst(IntPtr handle, ScrollBarKind kind)
{
int iMinimum = 0;
int iMaximum = 0;
if (!GetScrollRange(handle, kind, out iMinimum, out iMaximum))
{
return(false);
}
int iPostion = GetScrollPos(handle, kind);
if (iPostion > iMinimum)
{
return(false);
}
return(true);
}
/// <summary>
/// スクロール位置が末尾かの判定
/// </summary>
/// <param name="handle"></param>
/// <param name="kind"></param>
/// <returns></returns>
public static bool IsScrollBarEnd(IntPtr handle, ScrollBarKind kind, int height)
{
int iMinimum = 0;
int iMaximum = 0;
if (!GetScrollRange(handle, kind, out iMinimum, out iMaximum))
{
return(false);
}
int iPostion = GetScrollPos(handle, kind);
// 無理やり感あふれる調整方法
if (iPostion + height + DefaultValues.SCROLL_SUB < iMaximum)
{
return(false);
}
return(true);
}
private static extern bool GetScrollRange(
System.IntPtr handle,
ScrollBarKind kind,
out int iMinimum,
out int lMaximum
);
private static extern int GetScrollPos(
System.IntPtr handle,
ScrollBarKind kind
);
