protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case FormStyleAPI.WM_NCPAINT:
if (m_aeroEnabled)
{
var v = 2;
FormStyleAPI.DwmSetWindowAttribute(this.Handle, 2, ref v, 4);
FormStyleAPI.MARGINS margins = new FormStyleAPI.MARGINS()
{
bottomHeight = 1,
leftWidth = 0,
rightWidth = 0,
topHeight = 0
};
FormStyleAPI.DwmExtendFrameIntoClientArea(this.Handle, ref margins);
}
break;
default:
break;
}
base.WndProc(ref m);
//폼 드레그시 이동 가능하게
if (m_bDrag)
{
if (m.Msg == FormStyleAPI.WM_NCHITTEST && (int)m.Result == FormStyleAPI.HTCLIENT)
{
m.Result = (IntPtr)FormStyleAPI.HTCAPTION;
}
}
}
/// <summary>
/// 拖动窗口移动
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void LBHeadTitle_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
FormStyleAPI.ReleaseCapture();
FormStyleAPI.SendMessage(Handle, FormStyleAPI.WM_NCLBUTTONDOWN, FormStyleAPI.HTCAPTION, 0);
}
}
/// <summary>
/// 设置无标题窗口可拖动
/// </summary>
/// <param name="e"></param>
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (e.Button == MouseButtons.Left)
{
FormStyleAPI.ReleaseCapture();
FormStyleAPI.SendMessage(Handle, FormStyleAPI.WM_NCLBUTTONDOWN, FormStyleAPI.HTCAPTION, 0);
}
}
public void SetImageUpdateLayeredWindow(Bitmap image, int newOpacity = 255)
{
if (image == null)
{
return;
}
if (image.PixelFormat != PixelFormat.Format32bppArgb)
{
throw new ApplicationException("The bitmap must be 32ppp with alpha-channel.");
}
IntPtr screenDc = FormStyleAPI.GetDC(IntPtr.Zero);
IntPtr memDc = FormStyleAPI.CreateCompatibleDC(screenDc);
IntPtr hBitmap = IntPtr.Zero;
IntPtr oldBitmap = IntPtr.Zero;
try
{
hBitmap = image.GetHbitmap(Color.FromArgb(0));
oldBitmap = FormStyleAPI.SelectObject(memDc, hBitmap);
var size = new FormStyleAPI.Size {
cx = image.Width, cy = image.Height
};
var pointSource = new FormStyleAPI.Point {
x = 0, y = 0
};
var topPos = new FormStyleAPI.Point {
x = Left, y = Top
};
var blend = new FormStyleAPI.BLENDFUNCTION
{
BlendOp = FormStyleAPI.AC_SRC_OVER,
BlendFlags = 0,
SourceConstantAlpha = (byte)newOpacity,
AlphaFormat = FormStyleAPI.AC_SRC_ALPHA
};
FormStyleAPI.UpdateLayeredWindow(Handle, screenDc, ref topPos, ref size, memDc, ref pointSource, 0, ref blend, FormStyleAPI.ULW_ALPHA);
}
finally
{
FormStyleAPI.ReleaseDC(IntPtr.Zero, screenDc);
if (hBitmap != IntPtr.Zero)
{
FormStyleAPI.SelectObject(memDc, oldBitmap);
FormStyleAPI.DeleteObject(hBitmap);
}
FormStyleAPI.DeleteDC(memDc);
}
}
public void frmMain_MouseMove()
{
try
{
FormStyleAPI.ReleaseCapture();
FormStyleAPI.SendMessage(Handle, FormStyleAPI.WM_NCLBUTTONDOWN, FormStyleAPI.HTCAPTION, 0);
}
catch {}
}
private bool CheckAeroEnabled()
{
if (Environment.OSVersion.Version.Major >= 6)
{
//Environment.OSVersion.Version.Minor == 0 //Windows Vista
//Environment.OSVersion.Version.Minor == 1//Windows 7
//Environment.OSVersion.Version.Minor == 2//Windows 8
int enabled = 0;
FormStyleAPI.DwmIsCompositionEnabled(ref enabled);
return((enabled == 1) ? true : false);
}
return(false);
}
public void SetBits()
{
if (BackgroundImage != null)
{
//绘制绘图层背景
Bitmap bitmap = new Bitmap(BackgroundImage, base.Width, base.Height);
if (!Image.IsCanonicalPixelFormat(bitmap.PixelFormat) || !Image.IsAlphaPixelFormat(bitmap.PixelFormat))
{
throw new ApplicationException("图片必须是32位带Alhpa通道的图片。");
}
IntPtr oldBits = IntPtr.Zero;
IntPtr screenDC = FormStyleAPI.GetDC(IntPtr.Zero);
IntPtr hBitmap = IntPtr.Zero;
IntPtr memDc = FormStyleAPI.CreateCompatibleDC(screenDC);
try
{
FormStyleAPI.Point topLoc = new FormStyleAPI.Point(Left, Top);
FormStyleAPI.Size bitMapSize = new FormStyleAPI.Size(Width, Height);
FormStyleAPI.BLENDFUNCTION blendFunc = new FormStyleAPI.BLENDFUNCTION();
FormStyleAPI.Point srcLoc = new FormStyleAPI.Point(0, 0);
hBitmap = bitmap.GetHbitmap(Color.FromArgb(0));
oldBits = FormStyleAPI.SelectObject(memDc, hBitmap);
blendFunc.BlendOp = FormStyleAPI.AC_SRC_OVER;
blendFunc.SourceConstantAlpha = Byte.Parse(((int)(Main.Opacity * 255)).ToString());
blendFunc.AlphaFormat = FormStyleAPI.AC_SRC_ALPHA;
blendFunc.BlendFlags = 0;
FormStyleAPI.UpdateLayeredWindow(Handle, screenDC, ref topLoc, ref bitMapSize, memDc, ref srcLoc, 0, ref blendFunc, FormStyleAPI.ULW_ALPHA);
}
finally
{
if (hBitmap != IntPtr.Zero)
{
FormStyleAPI.SelectObject(memDc, oldBits);
FormStyleAPI.DeleteObject(hBitmap);
}
FormStyleAPI.ReleaseDC(IntPtr.Zero, screenDC);
FormStyleAPI.DeleteDC(memDc);
bitmap.Dispose();
}
}
}
