在WIN7 64位运行正常，在Windows server 2008 r2不显示OnPaint里面的内容

[Mr Dang]

在WIN7 64位运行正常，在Windows server 2008 r2不显示OnPaint里面的内容，网上找了 说把WIN7 64电脑的gdiplus.dll放到程序根目录也没有用，这是什么问题 ？

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Drawing.Drawing2D;

namespace VolumeShow
{
    public partial class VolumeShow : UserControl
    {
        private VerticalProgressBar _progressbar = new VerticalProgressBar();
        public VolumeShow()
        {
            this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer, true);
            InitializeComponent();
            OnForeColorChanged(EventArgs.Empty);
            OnResize(EventArgs.Empty);

            _progressbar.Minimum = 0;
            _progressbar.Maximum = 100;
            _progressbar.Left = pictureBox1.Left;
            _progressbar.Width = 8;
            _progressbar.Height = pictureBox1.Top-10;
            this.Controls.Add(_progressbar);
        }

        public int Volume
        {
            get { return _progressbar.Value; }
            set {
                  if (Math.Abs(_progressbar.Value - value) < 5) return;
                   _progressbar.Value = value>100 ? 100: value; 
                }
        }

        private void VolumeShow_Paint(object sender, PaintEventArgs e)
        {
            Graphics g = this.CreateGraphics();
            g.SmoothingMode = SmoothingMode.AntiAlias;  //使绘图质量最高，即消除锯齿
            g.InterpolationMode = InterpolationMode.HighQualityBicubic;
            g.CompositingQuality = CompositingQuality.HighQuality;

            Point[] ps = new Point[3];
            ps[0].X = _progressbar.Location.X + _progressbar.Width;
            ps[0].Y = _progressbar.Location.Y;
            ps[1].X = _progressbar.Location.X + _progressbar.Width;
            ps[1].Y = pictureBox1.Top-10;
            ps[2].X = _progressbar.Location.X + _progressbar.Width + 16;
            ps[2].Y = _progressbar.Location.Y;
            g.FillPolygon(new SolidBrush(Color.LightGray), ps);

            Pen pen = new Pen(Color.LightGray,1);
            g.DrawLine(pen, new Point(_progressbar.Location.X + _progressbar.Width, _progressbar.Location.Y),
                            new Point( _progressbar.Location.X + _progressbar.Width + 20, _progressbar.Location.Y));

            g.DrawLine(pen, new Point(_progressbar.Location.X + _progressbar.Width, (pictureBox1.Top - 10)/2),
                new Point(_progressbar.Location.X + _progressbar.Width + 20, (pictureBox1.Top - 10)/2));

            g.DrawLine(pen, new Point(_progressbar.Location.X + _progressbar.Width, pictureBox1.Top - 10),
                            new Point(_progressbar.Location.X + _progressbar.Width + 20, pictureBox1.Top-10));
            g.Dispose();
        }
    }
}

[xuzuning]

请贴全你的代码，以免误判
至少我没有看到订阅 Paint 事件的代码

另外，绘制的线条可能会被 _progressbar 全遮挡，请仔细核算
控件的尺寸会因皮肤方案的不同而变化

[Mr Dang]

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace VolumeShow
{
    public partial class VerticalProgressBar : ProgressBar
    {
        public VerticalProgressBar()
        {
            InitializeComponent();
        }

        protected override CreateParams CreateParams
        {
            get
            {
                CreateParams cp = base.CreateParams;
                cp.Style |= 0x04;
                return cp;
            }
        }
    }
}

订阅的代码

namespace VolumeShow
{
    partial class VolumeShow
    {
        /// <summary> 
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary> 
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region 组件设计器生成的代码

        /// <summary> 
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.pictureBox1 = new System.Windows.Forms.PictureBox();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
            this.SuspendLayout();
            // 
            // pictureBox1
            // 
            this.pictureBox1.Image = global::VolumeShow.Properties.Resources.Volume_son_24px_1075745_easyicon_net;
            this.pictureBox1.InitialImage = null;
            this.pictureBox1.Location = new System.Drawing.Point(0, 199);
            this.pictureBox1.Name = "pictureBox1";
            this.pictureBox1.Size = new System.Drawing.Size(28, 24);
            this.pictureBox1.TabIndex = 0;
            this.pictureBox1.TabStop = false;
            // 
            // VolumeShow
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.Controls.Add(this.pictureBox1);
            this.Name = "VolumeShow";
            this.Size = new System.Drawing.Size(48, 226);
            this.Paint += new System.Windows.Forms.PaintEventHandler(this.VolumeShow_Paint);
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.PictureBox pictureBox1;

    }
}

[Mr Dang]

win7下的效果 ，window server 2008就不显示三角阴影

[Mr Dang]

结贴，晕死了，原来是Color.LightGray这个颜色在windows server 2008是透明效果了