/// <summary>WindowのStyleを変更します。</summary>
/// <param name="hWnd">ウィンドウハンドルを表すIntPtr。</param>
/// <param name="styleFlag">Windowに設定するStyleを表すMetroWindowStyle列挙型フラグ。</param>
public static void ChangeWindowStyle(IntPtr hWnd, MetroWindowStyle styleFlag)
{
var style = WindowApis.GetWindowLong(hWnd, ApiConstants.GWL_STYLE);
if ((styleFlag & MetroWindowStyle.CanMaxmize) == MetroWindowStyle.CanMaxmize)
{
style |= ApiConstants.WS_MAXIMIZEBOX;
}
else
{
style &= ~ApiConstants.WS_MAXIMIZEBOX;
}
if ((styleFlag & MetroWindowStyle.CanMinimize) == MetroWindowStyle.CanMinimize)
{
style |= ApiConstants.WS_MINIMIZEBOX;
}
else
{
style &= ~ApiConstants.WS_MINIMIZEBOX;
}
if ((styleFlag & MetroWindowStyle.ShowSystemMenu) == MetroWindowStyle.ShowSystemMenu)
{
style |= ApiConstants.WS_SYSMENU;
}
else
{
style &= ~ApiConstants.WS_SYSMENU;
}
WindowApis.SetWindowLong(hWnd, ApiConstants.GWL_STYLE, style);
}
/// <summary>システムメニュー項目の有効/無効を設定します。</summary>
/// <param name="hWnd">対象のウィンドウハンドルを表すIntPtr。</param>
/// <param name="menuItem">システムメニュー項目を表すSystemMenuItem列挙型の内の1つ</param>
/// <param name="isEnabled">設定する有効状態を表すbool。</param>
public static void ChangeSystemMenuItemEnabled(IntPtr hWnd, SystemMenuItem menuItem, bool isEnabled)
{
var hMenu = WindowApis.GetSystemMenu(hWnd, false);
if (hMenu == IntPtr.Zero)
{
return;
}
var enabled = isEnabled ? ApiConstants.MF_BYCOMMAND | ApiConstants.MF_ENABLED :
ApiConstants.MF_BYCOMMAND | ApiConstants.MF_GRAYED;
WindowApis.EnableMenuItem(hMenu, (uint)menuItem, enabled);
}
public static void ChangeSystemMenuVisible(IntPtr hwnd, bool visible)
{
var style = WindowApis.GetWindowLong(hwnd, ApiConstants.GWL_STYLE);
if (visible)
{
style |= ApiConstants.WS_SYSMENU;
}
else
{
style &= ~ApiConstants.WS_SYSMENU;
}
WindowApis.SetWindowLong(hwnd, ApiConstants.GWL_STYLE, style);
}
