protected override void OnPaintBackground(PaintEventArgs pevent)
{
if (Glass.IsDesktopCompositionEnabled())
{
return;
}
base.OnPaintBackground(pevent);
}
protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
{
try
{
if (Glass.IsDesktopCompositionEnabled())
{
var form = this.FindForm();
var glass = new GlassText();
glass.DrawTextOnGlass(this.FindForm().Handle, Text, Font, Bounds, TextAlign, 8);
glass.DrawTextOnGlass(e.Graphics, Text, Font, ClientRectangle, TextAlign, 8);
return;
}
}
catch (DllNotFoundException)
{
}
base.OnPaint(e);
}
private void DrawTextOnGlassInternal(IntPtr destdc, String text, Font font, Rectangle ctlrct, ContentAlignment textAlign, int iglowSize)
{
if (Glass.IsDesktopCompositionEnabled())
{
RECT rc = new RECT();
RECT rc2 = new RECT();
var iglowExpand = (int)(iglowSize * 0.5);
//iglowExpand = 0;
//make it larger to contain the glow effect
rc.left = ctlrct.Left - iglowExpand;
rc.right = ctlrct.Right;// + iglowExpand;
rc.top = ctlrct.Top - iglowExpand;
rc.bottom = ctlrct.Bottom + iglowExpand;
//Just the same rect with rc,but (0,0) at the lefttop
rc2.left = iglowExpand;
rc2.top = iglowExpand;
rc2.right = rc.right - rc.left;// - iglowExpand;
rc2.bottom = rc.bottom - rc.top - iglowExpand;
IntPtr Memdc = CreateCompatibleDC(destdc); // Set up a memory DC where we'll draw the text.
IntPtr bitmap;
IntPtr bitmapOld = IntPtr.Zero;
IntPtr logfnotOld;
//int uFormat = DT_SINGLELINE | DT_CENTER | DT_VCENTER | DT_NOPREFIX; //text format
TextFormatFlags uFormat = TextFormatFlags.NoPrefix; //text format
//if ((textAlign == ContentAlignment.TopCenter) ||
// (textAlign == ContentAlignment.MiddleCenter) ||
// (textAlign == ContentAlignment.BottomCenter))
// uFormat |= TextFormatFlags.HorizontalCenter;
//if ((textAlign == ContentAlignment.TopRight) ||
// (textAlign == ContentAlignment.MiddleRight) ||
// (textAlign == ContentAlignment.BottomRight))
// uFormat |= TextFormatFlags.Right;
//if ((textAlign == ContentAlignment.MiddleLeft) ||
// (textAlign == ContentAlignment.MiddleCenter) ||
// (textAlign == ContentAlignment.MiddleRight))
// uFormat |= TextFormatFlags.VerticalCenter;
//if ((textAlign == ContentAlignment.BottomLeft) ||
// (textAlign == ContentAlignment.BottomCenter) ||
// (textAlign == ContentAlignment.BottomRight))
// uFormat |= TextFormatFlags.Bottom;
BITMAPINFO dib = new BITMAPINFO();
dib.bmiHeader.biHeight = -(rc.bottom - rc.top); // negative because DrawThemeTextEx() uses a top-down DIB
dib.bmiHeader.biWidth = rc.right - rc.left;
dib.bmiHeader.biPlanes = 1;
dib.bmiHeader.biSize = Marshal.SizeOf(typeof(BITMAPINFOHEADER));
dib.bmiHeader.biBitCount = 32;
dib.bmiHeader.biCompression = BI_RGB;
if (!(SaveDC(Memdc) == 0))
{
bitmap = CreateDIBSection(Memdc, ref dib, DIB_RGB_COLORS, 0, IntPtr.Zero, 0); // Create a 32-bit bmp for use in offscreen drawing when glass is on
if (!(bitmap == IntPtr.Zero))
{
bitmapOld = SelectObject(Memdc, bitmap);
IntPtr hFont = font.ToHfont();
logfnotOld = SelectObject(Memdc, hFont);
try
{
System.Windows.Forms.VisualStyles.VisualStyleRenderer renderer = new System.Windows.Forms.VisualStyles.VisualStyleRenderer(System.Windows.Forms.VisualStyles.VisualStyleElement.Window.Caption.Active);
DTTOPTS dttOpts = new DTTOPTS();
dttOpts.dwSize = (uint)Marshal.SizeOf(typeof(DTTOPTS));
dttOpts.dwFlags = DTT_COMPOSITED | DTT_GLOWSIZE;
dttOpts.iGlowSize = iglowSize;
DrawThemeTextEx(renderer.Handle, Memdc, 0, 0, text, -1, (int)uFormat, ref rc2, ref dttOpts);
BitBlt(destdc, rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top, Memdc, 0, 0, SRCCOPY);
}
catch (Exception e)
{
Trace.WriteLine(e.Message);
}
//using (var image = GetImageFromHBitmap(bitmap))
//{
// image.Save(@"d:\temp\sqlupdate.png", System.Drawing.Imaging.ImageFormat.Png);
//}
//Remember to clean up
SelectObject(Memdc, bitmapOld);
SelectObject(Memdc, logfnotOld);
DeleteObject(bitmap);
DeleteObject(hFont);
ReleaseDC(Memdc, -1);
DeleteDC(Memdc);
}
}
}
}
