private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
{
if (treeView1.SelectedNode != null)
{
Graphics g = Graphics.FromHwnd(this.Handle);
g.Clear(this.BackColor);
TextY = 0;
if (VisualStyleInformation.IsSupportedByOS)
{
DrawText(g, "VisualStyles supported by OS");
}
else
{
DrawText(g, "VisualStyles not supported by OS.");
return;
}
if (VisualStyleInformation.IsEnabledByUser)
{
DrawText(g, "VisualStyles enabled by user.");
}
else
{
DrawText(g, "VisualStyles not enabled by user.");
return;
}
// Create the VisualStyleElement
MethodInfo m = (MethodInfo)treeView1.SelectedNode.Tag;
VisualStyleElement vse = (VisualStyleElement)m.Invoke(null, null);
if (!VisualStyleRenderer.IsElementDefined(vse))
{
DrawText(g, treeView1.SelectedNode.Text + " is not defined by the current style.");
return;
}
try {
// Create the VisualStyleRenderer
if (vsr == null)
{
vsr = new VisualStyleRenderer(vse);
}
else
{
vsr.SetParameters(vse);
}
// Draw some pretty graphics
TextY += 25;
vsr.DrawBackground(g, new Rectangle(250, TextY, 25, 25));
vsr.DrawBackground(g, new Rectangle(350, TextY, 50, 50));
vsr.DrawBackground(g, new Rectangle(450, TextY, 50, 50), new Rectangle(450, TextY, 25, 25));
TextY += 75;
// Test some other methods
DrawText(g, "GetBackgroundContentRectangle: " + vsr.GetBackgroundContentRectangle(g, new Rectangle(300, 0, 300, 50)).ToString());
DrawText(g, "GetBackgroundExtent: " + vsr.GetBackgroundExtent(g, new Rectangle(300, 0, 300, 50)).ToString());
DrawText(g, "GetBoolean: " + vsr.GetBoolean(BooleanProperty.MirrorImage).ToString());
DrawText(g, "GetEnumValue: " + vsr.GetEnumValue(EnumProperty.VerticalAlignment).ToString());
DrawText(g, "GetFilename: " + vsr.GetFilename(FilenameProperty.ImageFile).ToString());
DrawText(g, "GetInteger: " + vsr.GetInteger(IntegerProperty.BorderSize).ToString());
DrawText(g, "GetMargins: " + vsr.GetMargins(g, MarginProperty.CaptionMargins).ToString());
DrawText(g, "GetPartSize: " + vsr.GetPartSize(g, ThemeSizeType.Draw).ToString());
DrawText(g, "GetPoint: " + vsr.GetPoint(PointProperty.MinSize).ToString());
DrawText(g, "GetString: " + vsr.GetString(StringProperty.Text).ToString());
DrawText(g, "GetTextExtent: " + vsr.GetTextExtent(g, "HeyThere!", TextFormatFlags.Default).ToString());
DrawText(g, "GetTextMetrics: " + vsr.GetTextMetrics(g).Ascent.ToString());
DrawText(g, "GetBackgroundRegion: " + vsr.GetBackgroundRegion(g, this.ClientRectangle).GetBounds(g).ToString());
DrawText(g, "HitTestBackground: " + vsr.HitTestBackground(g, this.ClientRectangle, new Point(300, 300), HitTestOptions.Caption).ToString());
DrawText(g, "Author: " + VisualStyleInformation.Author);
DrawText(g, "ColorScheme: " + VisualStyleInformation.ColorScheme);
DrawText(g, "Company: " + VisualStyleInformation.Company);
DrawText(g, "ControlHighlightHot: " + VisualStyleInformation.ControlHighlightHot.ToString());
DrawText(g, "Copyright: " + VisualStyleInformation.Copyright);
DrawText(g, "Description: " + VisualStyleInformation.Description);
DrawText(g, "DisplayName: " + VisualStyleInformation.DisplayName);
DrawText(g, "MinimumColorDepth: " + VisualStyleInformation.MinimumColorDepth.ToString());
DrawText(g, "Size: " + VisualStyleInformation.Size.ToString());
DrawText(g, "SupportsFlatMenus: " + VisualStyleInformation.SupportsFlatMenus.ToString());
DrawText(g, "TextControlBorder: " + VisualStyleInformation.TextControlBorder.ToString());
DrawText(g, "Url: " + VisualStyleInformation.Url);
DrawText(g, "Version: " + VisualStyleInformation.Version.ToString());
}
catch (Exception ex) {
System.Console.WriteLine(ex.ToString());
}
}
}
