Windows 不提供经典风格的渲染器,您必须自己做饭。使用 SystemInformation 类获取指标,使用 Color.FromKnownColor() 获取颜色。
唯一棘手的部分是让框架按钮看起来不错。最好的办法是使用字体中的字形,而不是尝试自己绘制它们。Webdings 字体非常适合这种情况。
我无法验证它的匹配程度,我的机器启动 Windows 8 并且不再支持经典风格。否则强烈暗示您可能不应该在这方面投入太多时间:) 一些示例代码:
protected override void OnPaintBackground(PaintEventArgs e) {
base.OnPaintBackground(e);
var captionHeight = SystemInformation.CaptionHeight;
int border = SystemInformation.Border3DSize.Width;
var color1 = Color.FromKnownColor(activated ? KnownColor.ActiveCaption : KnownColor.InactiveCaption);
var color2 = Color.FromKnownColor(activated ? KnownColor.GradientActiveCaption : KnownColor.GradientInactiveCaption);
var captionrc = new Rectangle(0, 0, this.ClientSize.Width, captionHeight);
using (var brush = new LinearGradientBrush(captionrc, color1, color2, 0, false)) {
e.Graphics.FillRectangle(brush, captionrc);
}
int textx = border;
if (this.Icon != null) {
int height = SystemInformation.SmallIconSize.Height;
var iconrc = new Rectangle(border, (captionHeight - height)/2, height, height);
textx += height + border;
e.Graphics.DrawIcon(this.Icon, iconrc);
}
var color = Color.FromKnownColor(activated ? KnownColor.ActiveCaptionText : KnownColor.InactiveCaptionText);
using (var font = new Font(this.Font.FontFamily, SystemInformation.CaptionHeight - 4 * border, GraphicsUnit.Pixel)) {
TextRenderer.DrawText(e.Graphics, this.Text, font, new Point(textx, border), color);
}
using (var font = new Font(new FontFamily("Webdings"), captionHeight - 4 * border, GraphicsUnit.Pixel)) {
var glyphs = this.WindowState == FormWindowState.Maximized ? "\u0030\u0031\u0072" : "\u0030\u0031\u0072";
var width = TextRenderer.MeasureText(glyphs, font).Width;
TextRenderer.DrawText(e.Graphics, glyphs, font,
new Point(this.ClientSize.Width - width, border),
Color.FromKnownColor(KnownColor.WindowFrame));
}
}
在我的机器上看起来像这样,并不完全丑陋:)