DotNet 4.8.1 build of DotNetBar

2025-02-07 10:35:23 -05:00
parent 33439b63a0
commit 6b0a5d60f4
2609 changed files with 989814 additions and 7 deletions
--- a/Code/Controls/CursorHelper.cs
+++ b/Code/Controls/CursorHelper.cs
@@ -0,0 +1,76 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Windows.Forms;
+
+namespace DevComponents.DotNetBar.Controls
+{
+    internal struct IconInfo
+    {
+        public bool fIcon;
+        public int xHotspot;
+        public int yHotspot;
+        public IntPtr hbmMask;
+        public IntPtr hbmColor;
+    }
+    internal class CursorHelper
+    {
+        [DllImport("user32.dll")]
+        public static extern IntPtr CreateIconIndirect(ref IconInfo icon);
+        [DllImport("user32.dll")]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        public static extern bool GetIconInfo(IntPtr hIcon, ref IconInfo pIconInfo);
+        [DllImport("gdi32.dll")]
+        public static extern bool DeleteObject(IntPtr handle);
+        [DllImport("user32.dll", CharSet = CharSet.Auto)]
+        extern static bool DestroyIcon(IntPtr handle);
+        public static Cursor CreateCursor(Bitmap bm, int xHotspot, int yHotspot, bool resize = true)
+        {
+            IntPtr ptr = (resize) ? ((Bitmap)ResizeBitmap(bm, 32, 32)).GetHicon() : bm.GetHicon();
+            IconInfo inf = new IconInfo();
+            GetIconInfo(ptr, ref inf);
+            inf.xHotspot = xHotspot;
+            inf.yHotspot = yHotspot;
+            inf.fIcon = false;
+            IntPtr cursorPtr = CreateIconIndirect(ref inf);
+            if (inf.hbmColor != IntPtr.Zero) { DeleteObject(inf.hbmColor); }
+            if (inf.hbmMask != IntPtr.Zero) { DeleteObject(inf.hbmMask); }
+            if (ptr != IntPtr.Zero) { DestroyIcon(ptr); }
+            Cursor c = new Cursor(cursorPtr);
+            c.Tag = (resize) ? new Size(32, 32) : bm.Size;
+            return c;
+        }
+        public static Bitmap ResizeBitmap(Image image, int maxWidth, int maxHeight)
+        {
+            double ratio = System.Math.Min((double)maxHeight / image.Height, (double)maxWidth / image.Width);
+            var propWidth = (int)(image.Width * ratio);
+            var propHeight = (int)(image.Height * ratio);
+            var newImage = new Bitmap(propWidth, propHeight);
+            using (var g = Graphics.FromImage(newImage))
+            {
+                g.DrawImage(image, 0, 0, propWidth, propHeight);
+            }
+            return newImage;
+        }
+        public static Bitmap GetControlBitmap(Control c, Color transparent)
+        {
+            var bm = new Bitmap(c.Width, c.Height);
+            c.DrawToBitmap(bm, new Rectangle(0, 0, c.Width, c.Height));
+            if (!transparent.IsEmpty)
+            {
+                bm.MakeTransparent(transparent);
+            }
+            return bm;
+        }
+        public static Bitmap OverlayBitmap(Bitmap baseBitmap, Bitmap overlay, Point atPosition)
+        {
+            using (var g = Graphics.FromImage(baseBitmap))
+            {
+                g.DrawImage(overlay, new Rectangle(atPosition, overlay.Size));
+            }
+            return baseBitmap;
+        }
+    }
+}