public virtual int RenderBackgroundEx(
IntPtr htheme, IntPtr hdc,
int partid, int stateid,
NativeMethods.RECTCLS prect, ref NativeMethods.DTBGOPTS poptions)
{
return(Unhandled);
}
public override int RenderBackgroundEx(
IntPtr htheme, IntPtr hdc,
int partid, int stateid,
NativeMethods.RECTCLS prect, ref NativeMethods.DTBGOPTS poptions)
{
switch ((Parts)partid)
{
case Parts.LVP_LISTDETAIL:
CheckBoxState state;
switch ((State.ListItem)stateid)
{
case State.ListItem.LISS_NORMAL:
state = CheckBoxState.UncheckedNormal;
break;
case State.ListItem.LISS_SELECTEDNOTFOCUS:
state = CheckBoxState.CheckedNormal;
break;
default:
return(Unhandled);
}
using (var ctx = CreateRenderContext(hdc, clip: null))
{
CheckBoxRenderer.DrawCheckBox(
ctx.Graphics,
new Point(prect.Left, prect.Top),
state);
}
return(Handled);
default:
return(Unhandled);
}
}
private void OnPaintThemed( PaintEventArgs e )
{
NativeMethods.RECT rect = new NativeMethods.RECT();
rect.left = ClientRectangle.Left;
rect.top = ClientRectangle.Top;
rect.right = ClientRectangle.Right;
rect.bottom = ClientRectangle.Bottom;
IntPtr hdc = new IntPtr();
hdc = e.Graphics.GetHdc();
if ( BackColor.ToKnownColor() != KnownColor.Window )
{
e.Graphics.ReleaseHdc( hdc );
using ( SolidBrush backgroundBrush = new SolidBrush( BackColor ) )
{
e.Graphics.FillRectangle( backgroundBrush, ClientRectangle );
}
hdc = e.Graphics.GetHdc();
IntPtr hTheme = NativeMethods.OpenThemeData( Handle, "Edit" );
NativeMethods.DTBGOPTS options = new NativeMethods.DTBGOPTS();
options.dwSize = (uint)System.Runtime.InteropServices.Marshal.SizeOf(options);
options.dwFlags = NativeMethods.DTBG_OMITCONTENT;
int state = NativeMethods.ETS_NORMAL;
if ( !Enabled )
{
state = NativeMethods.ETS_DISABLED;
}
else
if ( ReadOnly )
{
state = NativeMethods.ETS_READONLY;
}
NativeMethods.DrawThemeBackgroundEx( hTheme, hdc,
NativeMethods.EP_EDITTEXT, state, ref rect, ref options );
if ( IntPtr.Zero != hTheme )
{
NativeMethods.CloseThemeData( hTheme );
}
}
else if ( Enabled & !ReadOnly )
{
IntPtr hTheme = NativeMethods.OpenThemeData( Handle, "Edit" );
NativeMethods.DrawThemeBackground( hTheme, hdc, NativeMethods.EP_EDITTEXT,
NativeMethods.ETS_NORMAL, ref rect, IntPtr.Zero );
if ( IntPtr.Zero != hTheme )
{
NativeMethods.CloseThemeData( hTheme );
}
}
else
{
IntPtr hTheme = NativeMethods.OpenThemeData( Handle, "Globals" );
IntPtr hBrush = NativeMethods.GetThemeSysColorBrush( hTheme, 15 );
NativeMethods.FillRect( hdc, ref rect, hBrush );
if ( IntPtr.Zero != hBrush )
{
NativeMethods.DeleteObject( hBrush );
hBrush = IntPtr.Zero;
}
if ( IntPtr.Zero != hTheme )
{
NativeMethods.CloseThemeData( hTheme );
hTheme = IntPtr.Zero;
}
hTheme = NativeMethods.OpenThemeData( Handle, "Edit" );
NativeMethods.DTBGOPTS options = new NativeMethods.DTBGOPTS();
options.dwSize = (uint)System.Runtime.InteropServices.Marshal.SizeOf(options);
options.dwFlags = NativeMethods.DTBG_OMITCONTENT;
NativeMethods.DrawThemeBackgroundEx( hTheme, hdc,
NativeMethods.EP_EDITTEXT, NativeMethods.ETS_DISABLED, ref rect, ref options );
if ( IntPtr.Zero != hTheme )
{
NativeMethods.CloseThemeData( hTheme );
}
}
e.Graphics.ReleaseHdc( hdc );
}
protected void OnPaintThemed( PaintEventArgs e )
{
NativeMethods.RECT rect = new NativeMethods.RECT();
rect.left = ClientRectangle.Left;
rect.top = ClientRectangle.Top;
rect.right = ClientRectangle.Right;
rect.bottom = ClientRectangle.Bottom;
IntPtr hdc = new IntPtr();
hdc = e.Graphics.GetHdc();
if ( BackColor.ToKnownColor() != KnownColor.Window )
{
e.Graphics.ReleaseHdc( hdc );
using ( SolidBrush backgroundBrush = new SolidBrush( BackColor ) )
{
e.Graphics.FillRectangle( backgroundBrush, ClientRectangle );
}
hdc = e.Graphics.GetHdc();
}
else
if ( Enabled & !ReadOnly )
{
IntPtr hTheme = NativeMethods.OpenThemeData( Handle, "Edit" );
NativeMethods.DTBGOPTS options = new NativeMethods.DTBGOPTS();
options.dwSize = (uint)System.Runtime.InteropServices.Marshal.SizeOf(options);
options.dwFlags = NativeMethods.DTBG_OMITBORDER;
NativeMethods.DrawThemeBackgroundEx( hTheme, hdc,
NativeMethods.EP_EDITTEXT, NativeMethods.ETS_NORMAL, ref rect, ref options );
if ( IntPtr.Zero != hTheme )
{
NativeMethods.CloseThemeData( hTheme );
}
}
else
{
IntPtr hTheme = NativeMethods.OpenThemeData( Handle, "Globals" );
IntPtr hBrush = NativeMethods.GetThemeSysColorBrush( hTheme, 15 );
NativeMethods.FillRect( hdc, ref rect, hBrush );
if ( IntPtr.Zero != hBrush )
{
NativeMethods.DeleteObject( hBrush );
hBrush = IntPtr.Zero;
}
if ( IntPtr.Zero != hTheme )
{
NativeMethods.CloseThemeData( hTheme );
hTheme = IntPtr.Zero;
}
}
e.Graphics.ReleaseHdc( hdc );
uint colorref = 0;
if ( Enabled )
{
if ( ForeColor.ToKnownColor() != KnownColor.WindowText )
{
colorref = NativeMethods.RGB( ForeColor.R, ForeColor.G, ForeColor.B );
}
else
{
IntPtr hTheme = NativeMethods.OpenThemeData( Handle, "Globals" );
colorref = NativeMethods.GetThemeSysColor( hTheme, 6 );
if ( IntPtr.Zero != hTheme )
{
NativeMethods.CloseThemeData( hTheme );
hTheme = IntPtr.Zero;
}
}
}
else
{
IntPtr hTheme = NativeMethods.OpenThemeData( Handle, "Globals" );
colorref = NativeMethods.GetThemeSysColor( hTheme, 16 );
if ( IntPtr.Zero != hTheme )
{
NativeMethods.CloseThemeData( hTheme );
hTheme = IntPtr.Zero;
}
}
int r = NativeMethods.GetRValue( colorref );
int g = NativeMethods.GetGValue( colorref );
int b = NativeMethods.GetBValue( colorref );
StringFormat stringFormat = new StringFormat();
stringFormat.Alignment = StringAlignment.Center;
using ( SolidBrush textBrush = new SolidBrush( Color.FromArgb( r, g, b ) ) )
{
e.Graphics.DrawString( Text, Font, textBrush, ClientRectangle, stringFormat );
}
}
