/// <summary>
/// Draws glowing text in the specified bounding rectangle with the option of overriding text color and applying other text formatting.
/// </summary>
/// <param name="rnd">The <see cref="VisualStyleRenderer" /> instance.</param>
/// <param name="dc">The <see cref="IDeviceContext" /> used to draw the text.</param>
/// <param name="bounds">A <see cref="Rectangle" /> in which the text is drawn.</param>
/// <param name="text">The text to draw.</param>
/// <param name="font">Optional font override.</param>
/// <param name="color">Optionally, the color to draw text in overriding the default color for the theme.</param>
/// <param name="flags">A bitwise combination of the <see cref="TextFormatFlags" /> values.</param>
/// <param name="glowSize">The size of the glow.</param>
public static void DrawGlowingText(this VisualStyleRenderer rnd, IDeviceContext dc, Rectangle bounds, string text, Font font, Color?color, TextFormatFlags flags = TextFormatFlags.Default, int glowSize = 10)
{
var ht = new SafeThemeHandle(rnd.Handle, false);
DrawWrapper(dc, bounds,
memoryHdc =>
{
// Create and select font
using (new SafeDCObjectHandle(memoryHdc, font?.ToHfont() ?? IntPtr.Zero))
{
// Draw glowing text
var dttOpts = new DTTOPTS(null)
{
GlowSize = glowSize, AntiAliasedAlpha = true
};
if (color != null)
{
dttOpts.TextColor = color.Value;
}
var textBounds = new RECT(4, 0, bounds.Right - bounds.Left, bounds.Bottom - bounds.Top);
DrawThemeTextEx(ht, memoryHdc, rnd.Part, rnd.State, text, text.Length, FromTFF(flags), ref textBounds, ref dttOpts);
}
}
);
}
public static int[] GetThemeIntList(SafeThemeHandle hTheme, int partId, int stateId, int propId)
{
if (Environment.OSVersion.Version.Major < 6)
{
INTLIST_OLD l;
if (0 != GetThemeIntListPreVista(hTheme, partId, stateId, propId, out l))
{
return(null);
}
var outlist = new int[l.iValueCount];
Array.Copy(l.iValues, outlist, l.iValueCount);
return(outlist);
}
else
{
INTLIST l;
if (0 != GetThemeIntList(hTheme, partId, stateId, propId, out l))
{
return(null);
}
var outlist = new int[l.iValueCount];
Array.Copy(l.iValues, outlist, l.iValueCount);
return(outlist);
}
}
public void _Setup()
{
hwt = OpenThemeDataEx(new HandleRef(), "Window", OpenThemeDataOptions.None);
Assert.That(hwt.IsInvalid, Is.False);
hbt = OpenThemeDataEx(new HandleRef(), "Button", OpenThemeDataOptions.None);
Assert.That(hbt.IsInvalid, Is.False);
}
/// <summary>
/// Draws the background image of the current visual style element onto a glass background within the specified bounding rectangle and optionally clipped to the specified clipping rectangle.
/// </summary>
/// <param name="rnd">The <see cref="VisualStyleRenderer"/> instance.</param>
/// <param name="dc">The <see cref="IDeviceContext"/> used to draw the background image.</param>
/// <param name="bounds">A <see cref="Rectangle"/> in which the background image is drawn.</param>
/// <param name="clipRectangle">A <see cref="Rectangle"/> that defines a clipping rectangle for the drawing operation.</param>
/// <param name="rightToLeft">If set to <c>true</c> flip the image for right to left layout.</param>
public static void DrawGlassBackground(this VisualStyleRenderer rnd, IDeviceContext dc, Rectangle bounds, Rectangle?clipRectangle = null, bool rightToLeft = false)
{
var ht = new SafeThemeHandle(rnd.Handle, false);
DrawWrapper(dc, bounds,
memoryHdc =>
{
var rBounds = new RECT(bounds);
//var opts = new DrawThemeBackgroundOptions(clipRectangle);
// Draw background
var oldLayout = DCLayout.GDI_ERROR;
if (rightToLeft)
{
if ((oldLayout = SetLayout(memoryHdc, DCLayout.LAYOUT_RTL)) == DCLayout.GDI_ERROR)
{
throw new NotSupportedException("Unable to change graphics layout to RTL.");
}
}
DrawThemeBackground(ht, memoryHdc, rnd.Part, rnd.State, ref rBounds, clipRectangle);
if (oldLayout != DCLayout.GDI_ERROR)
{
SetLayout(memoryHdc, oldLayout);
}
}
);
}
public static extern unsafe HResult GetThemeMargins(
SafeThemeHandle hTheme,
User32.SafeDCHandle hdc,
int iPartId,
int iStateId,
int iPropId,
[Friendly(FriendlyFlags.In | FriendlyFlags.Optional)] RECT *prc,
out MARGINS pMargins);
/// <summary>
/// Draws text in the specified bounding rectangle with the option of applying other text formatting.
/// </summary>
/// <param name="rnd">The <see cref="VisualStyleRenderer" /> instance.</param>
/// <param name="dc">The <see cref="IDeviceContext" /> used to draw the text.</param>
/// <param name="bounds">A <see cref="Rectangle" /> in which the text is drawn.</param>
/// <param name="text">The text to draw.</param>
/// <param name="flags">A bitwise combination of the <see cref="TextFormatFlags"/> values.</param>
/// <param name="options">The <see cref="DTTOPTS"/> .</param>
public static void DrawText(this VisualStyleRenderer rnd, IDeviceContext dc, ref Rectangle bounds, string text, TextFormatFlags flags, ref DTTOPTS options)
{
var rc = new RECT(bounds);
var ht = new SafeThemeHandle(rnd.Handle, false);
using (var hdc = new SafeDCHandle(dc))
DrawThemeTextEx(ht, hdc, rnd.Part, rnd.State, text, text.Length, FromTFF(flags), ref rc, ref options);
bounds = rc;
}
public VisualTheme(IWin32Window window, string classList, OpenThemeDataOptions opt = OpenThemeDataOptions.None)
{
var ptr = OpenThemeDataEx(new HandleRef(window, window?.Handle ?? IntPtr.Zero), classList, opt);
hTheme = new SafeThemeHandle(ptr);
if (hTheme.IsInvalid)
{
throw new Win32Exception();
}
}
/// <summary>
/// Draws the image from the specified <paramref name="imageList"/> within the specified bounds on a glass background.
/// </summary>
/// <param name="rnd">The <see cref="VisualStyleRenderer"/> instance.</param>
/// <param name="g">The <see cref="Graphics"/> used to draw the image.</param>
/// <param name="bounds">A <see cref="Rectangle"/> in which the image is drawn.</param>
/// <param name="imageList">An <see cref="ImageList"/> that contains the <see cref="Image"/> to draw.</param>
/// <param name="imageIndex">The index of the <see cref="Image"/> within <paramref name="imageList"/> to draw.</param>
public static void DrawGlassImage(this VisualStyleRenderer rnd, IDeviceContext g, Rectangle bounds, ImageList imageList, int imageIndex)
{
var ht = new SafeThemeHandle(rnd.Handle, false);
DrawWrapper(g, bounds,
memoryHdc =>
{
var rBounds = new RECT(bounds);
DrawThemeIcon(ht, memoryHdc, rnd.Part, rnd.State, ref rBounds, new System.Runtime.InteropServices.HandleRef(imageList, imageList.Handle), imageIndex);
}
);
}
/// <summary>
/// Draws the image from the specified <paramref name="imageList"/> within the specified bounds on a glass background.
/// </summary>
/// <param name="rnd">The <see cref="VisualStyleRenderer"/> instance.</param>
/// <param name="g">The <see cref="Graphics"/> used to draw the image.</param>
/// <param name="bounds">A <see cref="Rectangle"/> in which the image is drawn.</param>
/// <param name="imageList">An <see cref="ImageList"/> that contains the <see cref="Image"/> to draw.</param>
/// <param name="imageIndex">The index of the <see cref="Image"/> within <paramref name="imageList"/> to draw.</param>
public static void DrawGlassImage(this VisualStyleRenderer rnd, Graphics g, Rectangle bounds, ImageList imageList, int imageIndex)
{
var ht = new SafeThemeHandle(rnd.Handle, false);
DrawWrapper(g, bounds,
memoryHdc =>
{
var rBounds = new RECT(bounds);
DrawThemeIcon(ht, memoryHdc, rnd.Part, rnd.State, ref rBounds, imageList.Handle, imageIndex);
}
);
}
internal static void DrawGlassBackground(SafeThemeHandle hTheme, SafeDCHandle memoryHdc, int part, int state, Rectangle bounds, bool rightToLeft, Rectangle?clipRectangle)
{
var rBounds = new RECT(bounds);
//var opts = new DrawThemeBackgroundOptions(clipRectangle);
// Draw background
var oldLayout = DCLayout.GDI_ERROR;
if (rightToLeft)
{
if ((oldLayout = SetLayout(memoryHdc, DCLayout.LAYOUT_RTL)) == DCLayout.GDI_ERROR)
{
throw new NotSupportedException("Unable to change graphics layout to RTL.");
}
}
DrawThemeBackground(hTheme, memoryHdc, part, state, ref rBounds, clipRectangle);
if (oldLayout != DCLayout.GDI_ERROR)
{
SetLayout(memoryHdc, oldLayout);
}
}
public static extern int GetThemeString(SafeThemeHandle hTheme, int iPartId, int iStateId, int iPropId, ref System.Text.StringBuilder themeString, int themeStringLength);
public static extern int GetThemeStream(SafeThemeHandle hTheme, int iPartId, int iStateId, int iPropId, [MarshalAs(UnmanagedType.LPArray, ArraySubType = UnmanagedType.U1, SizeParamIndex = 5)] out byte[] pvStream, out int cbStream, IntPtr hInst);
public static extern int GetThemeRect(SafeThemeHandle hTheme, int iPartId, int iStateId, int iPropId, out RECT pRect);
public static extern int GetThemePropertyOrigin(SafeThemeHandle hTheme, int iPartId, int iStateId, int iPropId, out ThemePropertyOrigin pOrigin);
public static extern int GetThemePosition(SafeThemeHandle hTheme, int iPartId, int iStateId, int iPropId, out Point piVal);
public static extern int GetThemeBitmap(SafeThemeHandle hTheme, SafeDCHandle hdc, int iPartId, int iStateId, int iPropId, int dwFlags, out IntPtr phBitmap);
public static extern int GetThemeTransitionDuration(SafeThemeHandle hTheme, int iPartId, int iStateIdFrom, int iStateIdTo, int iPropId, out int pdwDuration);
public static extern int GetThemeInt(SafeThemeHandle hTheme, int iPartId, int iStateId, int iPropId, out int piVal);
public static extern bool IsThemePartDefined(SafeThemeHandle hTheme, int iPartId, int iStateId);
public static extern int GetThemeFilename(SafeThemeHandle hTheme, int iPartId, int iStateId, int iPropId, ref System.Text.StringBuilder pszBuff, int buffLength);
public static extern int GetThemeColor(SafeThemeHandle hTheme, int iPartId, int iStateId, int iPropId, out int pColor);
public static extern int GetThemeBool(SafeThemeHandle hTheme, int iPartId, int iStateId, int iPropId, [MarshalAs(UnmanagedType.Bool)] out bool pfVal);
public static extern int GetThemeSysInt(SafeThemeHandle hTheme, int iIntID, out int piVal);
public static extern int GetThemeMetric(SafeThemeHandle hTheme, SafeDCHandle hdc, int iPartId, int iStateId, int iPropId, out int piVal);
public static extern int GetThemeTextExtent(SafeThemeHandle hTheme, SafeDCHandle hdc, int iPartId, int iStateId, string text, int textLength, TextFormatFlags textFlags, ref RECT boundingRect, out RECT extentRect);
public static extern int GetThemePartSize(SafeThemeHandle hTheme, SafeDCHandle hdc, int part, int state, PRECT pRect, ThemeSize eSize, out Size size);
public static extern bool IsThemeBackgroundPartiallyTransparent(SafeThemeHandle hTheme, int iPartId, int iStateId);
public static extern int GetThemeBackgroundContentRect(SafeThemeHandle hTheme, SafeDCHandle hdc, int iPartId, int iStateId, ref RECT pBoundingRect, out RECT pContentRect);
private static extern int GetThemeIntListPreVista(SafeThemeHandle hTheme, int iPartId, int iStateId, int iPropId, out INTLIST_OLD pIntList);
public static extern int GetThemeMargins(SafeThemeHandle hTheme, SafeDCHandle hdc, int iPartId, int iStateId, int iPropId, IntPtr prc, out RECT pMargins);
