protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
if (Win32.DwmIsCompositionEnabled())
{
this.BackColor = Color.Black;
this.dwmDisTitleLabel.Visible = false;
Win32.MARGINS m = new Win32.MARGINS {
m_Top = 41, m_Left = 0, m_Right = 0, m_Bottom = 0
};
Win32.DwmExtendFrameIntoClientArea(this.Handle, ref m);
Win32.WTA_OPTIONS wtaopt = new Win32.WTA_OPTIONS();
wtaopt.dwFlags = 3;
wtaopt.dwMask = 3;
extendedPanel1.TextSize = extendedPanel1.Size;
Win32.SetWindowThemeAttribute(this.Handle, Win32.WINDOWTHEMEATTRIBUTETYPE.WTA_NONCLIENT, ref wtaopt, (uint)Marshal.SizeOf(typeof(Win32.WTA_OPTIONS)));
//Win32.SetWindowThemeNonClientAttributes(this.Handle, 3, 3);
}
else
{
this.dwmDisTitleLabel.Font = new Font(SystemFonts.CaptionFont.FontFamily, this.dwmDisTitleLabel.Font.Size, FontStyle.Regular);
}
}
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case Win32.WM_PAINT:
// ガラス効果が使えるか確認
OperatingSystem os = Environment.OSVersion;
if ((os.Platform == PlatformID.Win32NT) && (os.Version.Major >= 6) &&
(DwmApi.DwmIsCompositionEnabled()))
{
this.BackColor = Color.Black;
extendedPanel1.Visible = true;
messageLabel.Visible = false;
Win32.MARGINS mar = new Win32.MARGINS();
mar.m_Left = -1;
mar.m_Right = 0;
mar.m_Bottom = 0;
mar.m_Top = 0;
Win32.DwmExtendFrameIntoClientArea(this.Handle, ref mar);
// 文字描画
SizeF textsize = extendedPanel1.CreateGraphics().MeasureString(labelText, new Font(Properties.Resources.AboutFont, 12));
extendedPanel1.DrawText = labelText;
extendedPanel1.TextLocation = new Point(0, 0);
extendedPanel1.TextSize = textsize.ToSize();
extendedPanel1.GlowSize = 7;
this.Size = new
Size((int)textsize.Width + extendedPanel1.GlowSize + 10, (int)textsize.Height + extendedPanel1.GlowSize + 15);
this.Location = new Point(Screen.PrimaryScreen.WorkingArea.Width - this.Width,
Screen.PrimaryScreen.WorkingArea.Height - this.Height - 2);
}
else
{
this.BackColor = SystemColors.Control;
this.Opacity = 0.9;
this.Padding = new Padding(10);
messageLabel.Text = labelText;
messageLabel.Visible = true;
this.ClientSize = new Size(messageLabel.Size.Width + 50, messageLabel.Height + 10);
this.Location = new Point(Screen.PrimaryScreen.WorkingArea.Width - this.Width,
Screen.PrimaryScreen.WorkingArea.Height - this.Height);
}
break;
default:
int wm_syscommand = 0x0112;
int sc_move = 0xF010;
if ((m.Msg == wm_syscommand) && ((m.WParam.ToInt32() & 0xFFF0) == sc_move))
{
m.Result = IntPtr.Zero;
return;
}
break;
}
base.WndProc(ref m);
}
/// <summary>
/// Use the form padding values to define a Glass margin
/// </summary>
private void SetGlassRegion()
{
// Set up the glass effect using padding as the defining glass region
if (Win32.DwmIsCompositionEnabled())
{
margins = new Win32.MARGINS();
margins.Top = padding_TOP;
margins.Left = padding_LFT;
margins.Bottom = padding_BTM;
margins.Right = padding_RHT;
Win32.DwmExtendFrameIntoClientArea(this.Handle, ref margins);
}
}
/// <summary>
/// Use the form padding values to define a Glass margin
/// </summary>
private void setGlassRegion()
{
// Set up the glass effect using padding as the defining glass region
// -1 margins indicate glass everywhere
if (!Win32.DwmIsCompositionEnabled())
{
return;
}
margins = new Win32.MARGINS();
margins.Top = -1;
margins.Left = -1;
margins.Bottom = -1;
margins.Right = -1;
Win32.DwmExtendFrameIntoClientArea(this.Handle, ref margins);
}
void set_shadow(IntPtr handle, bool enabled)
{
if (composition_enabled())
{
Win32.MARGINS[] shadow_state = new Win32.MARGINS[2] {
new Win32.MARGINS(), new Win32.MARGINS()
};
for (int i = 0; i < 2; ++i)
{
shadow_state[i].bottomHeight = i;
shadow_state[i].topHeight = i;
shadow_state[i].leftWidth = i;
shadow_state[i].rightWidth = i;
}
Win32.DwmExtendFrameIntoClientArea(handle, ref shadow_state[enabled ? 1 : 0]);
}
}
protected override void OnHandleCreated(EventArgs e)
{
// Applies DWM drop shadow effect to the window (Windows Vista +).
if (Environment.OSVersion.Version.Major >= 6)
{
try
{
var n = 2;
var result = Win32.DwmSetWindowAttribute(Handle, 2, ref n, 4);
if (result == 0)
{
var m = new Win32.MARGINS(1, 1, 1, 1); // 1px form border (do NOT use #000000 color).
Win32.DwmExtendFrameIntoClientArea(Handle, ref m);
}
}
catch (DllNotFoundException) { }
}
base.OnHandleCreated(e);
}
