コード例 #1
0
        public static void DrawImage(Graphics graphics, Image image, Point point, bool disabled)
        {
            if (!disabled)
            {
                Rectangle destination = new Rectangle(point, image.Size);
                graphics.DrawImage(image, destination, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel);
            }
            else
            {
                // Painting a disabled gray scale image is done using ILS_SATURATE on WinXP.
                // This code emulates that behaviour if comctl32 version 6 is not availble.
                NativeMethods.DLLVERSIONINFO dvi = new NativeMethods.DLLVERSIONINFO();
                dvi.cbSize = Marshal.SizeOf(typeof(NativeMethods.DLLVERSIONINFO));
                NativeMethods.DllGetVersion(ref dvi);
                if (dvi.dwMajorVersion < 6)
                {
                    ImageAttributes attributes  = new ImageAttributes();
                    Rectangle       destination = new Rectangle(point, image.Size);
                    float[][]       matrix      = new float[5][];
                    matrix[0] = new float[] { 0.2222f, 0.2222f, 0.2222f, 0.0000f, 0.0000f };
                    matrix[1] = new float[] { 0.2222f, 0.2222f, 0.2222f, 0.0000f, 0.0000f };
                    matrix[2] = new float[] { 0.2222f, 0.2222f, 0.2222f, 0.0000f, 0.0000f };
                    matrix[3] = new float[] { 0.3333f, 0.3333f, 0.3333f, 0.7500f, 0.0000f };
                    matrix[4] = new float[] { 0.0000f, 0.0000f, 0.0000f, 0.0000f, 1.0000f };
                    attributes.SetColorMatrix(new ColorMatrix(matrix));
                    graphics.DrawImage(image, destination, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel, attributes);
                }
                else
                {
                    ImageList imageList = new ImageList();
                    imageList.ImageSize  = image.Size;
                    imageList.ColorDepth = ColorDepth.Depth32Bit;
                    imageList.Images.Add(image);

                    IntPtr hdc = graphics.GetHdc();
                    NativeMethods.IMAGELISTDRAWPARAMS ildp = new NativeMethods.IMAGELISTDRAWPARAMS();
                    ildp.cbSize  = Marshal.SizeOf(typeof(NativeMethods.IMAGELISTDRAWPARAMS));
                    ildp.himl    = imageList.Handle;
                    ildp.i       = 0;               // image index
                    ildp.hdcDst  = hdc;
                    ildp.x       = point.X;
                    ildp.y       = point.Y;
                    ildp.cx      = 0;
                    ildp.cy      = 0;
                    ildp.xBitmap = 0;
                    ildp.yBitmap = 0;
                    ildp.fStyle  = NativeMethods.ILD_TRANSPARENT;
                    ildp.fState  = NativeMethods.ILS_SATURATE;
                    ildp.Frame   = -100;
                    NativeMethods.ImageList_DrawIndirect(ref ildp);
                    graphics.ReleaseHdc(hdc);
                }
            }
        }
コード例 #2
0
        private void NotifyCustomDrawToolBar(ref Message m)
        {
            m.Result = (IntPtr)NativeMethods.CDRF_DODEFAULT;

            NativeMethods.DLLVERSIONINFO dvi = new NativeMethods.DLLVERSIONINFO();
            dvi.cbSize = Marshal.SizeOf(typeof(NativeMethods.DLLVERSIONINFO));
            NativeMethods.DllGetVersion(ref dvi);
            if (dvi.dwMajorVersion < 6)
            {
                NativeMethods.LPNMTBCUSTOMDRAW tbcd = (NativeMethods.LPNMTBCUSTOMDRAW)m.GetLParam(typeof(NativeMethods.LPNMTBCUSTOMDRAW));
                NativeMethods.RECT             rc   = tbcd.nmcd.rc;

                Rectangle rectangle = new Rectangle(rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top);
//// Alex:graphics and image must be released - lots of calls
                using (Graphics graphics = Graphics.FromHdc(tbcd.nmcd.hdc)) {
                    CommandBarItem item = items[tbcd.nmcd.dwItemSpec];

                    bool hot      = ((tbcd.nmcd.uItemState & NativeMethods.CDIS_HOT) != 0);
                    bool selected = ((tbcd.nmcd.uItemState & NativeMethods.CDIS_SELECTED) != 0);
                    bool disabled = ((tbcd.nmcd.uItemState & NativeMethods.CDIS_DISABLED) != 0);

                    CommandBarCheckBox checkBox = item as CommandBarCheckBox;
                    if ((checkBox != null) && (checkBox.IsChecked))
                    {
                        ControlPaint.DrawBorder3D(graphics, rectangle, Border3DStyle.SunkenOuter);
                    }
                    else if (selected)
                    {
                        ControlPaint.DrawBorder3D(graphics, rectangle, Border3DStyle.SunkenOuter);
                    }
                    else if (hot)
                    {
                        ControlPaint.DrawBorder3D(graphics, rectangle, Border3DStyle.RaisedInner);
                    }
//// Alex: don't create references unnecessarily - lots of calls
                    if (item.Image != null)
                    {
                        Size  size  = item.Image.Size;
                        Point point = new Point(rc.left + ((rc.right - rc.left - size.Width) / 2), rc.top + ((rc.bottom - rc.top - size.Height) / 2));
                        NativeMethods.DrawImage(graphics, item.Image, point, disabled);
                    }
                }
                m.Result = (IntPtr)NativeMethods.CDRF_SKIPDEFAULT;
            }
        }