Solution C winForm custom mouse style of two implementation methods
- 2020-05-12 03:03:26
- OfStack
Type 1 :(calling system API)
First, introduce two namespaces
Import API
Next, use your own mouse style
Type 2 :(instead of API, the mouse style only requires a transparent background image, png or gif)
Use this method in events where you want to change the mouse style, such as:
First, introduce two namespaces
using System.Runtime.InteropServices;
using System.Reflection;
Import API
[DllImport("user32.dll")]
public static extern IntPtr LoadCursorFromFile(string fileName);
[DllImport("user32.dll")]
public static extern IntPtr SetCursor(IntPtr cursorHandle);
[DllImport("user32.dll")]
public static extern uint DestroyCursor(IntPtr cursorHandle);
Next, use your own mouse style
private void Form1_Load(object sender, EventArgs e)
{
Cursor myCursor = new Cursor(Cursor.Current.Handle);
IntPtr colorCursorHandle = LoadCursorFromFile("my.cur");// Mouse icon path
myCursor.GetType().InvokeMember("handle", BindingFlags.Public |
BindingFlags.NonPublic | BindingFlags.Instance |
BindingFlags.SetField, null, myCursor,
new object[] { colorCursorHandle });
this.Cursor = myCursor;
}
Type 2 :(instead of API, the mouse style only requires a transparent background image, png or gif)
public void SetCursor(Bitmap cursor, Point hotPoint)
{
int hotX = hotPoint.X;
int hotY = hotPoint.Y;
Bitmap myNewCursor = new Bitmap(cursor.Width * 2 - hotX, cursor.Height * 2 - hotY);
Graphics g = Graphics.FromImage(myNewCursor);
g.Clear(Color.FromArgb(0, 0, 0, 0));
g.DrawImage(cursor, cursor.Width - hotX, cursor.Height - hotY, cursor.Width,
cursor.Height);
this.Cursor = new Cursor(myNewCursor.GetHicon());
g.Dispose();
myNewCursor.Dispose();
}
Use this method in events where you want to change the mouse style, such as:
private void Form1_Load(object sender, EventArgs e)
{
Bitmap a=(Bitmap)Bitmap.FromFile("myCur.png");
SetCursor(a, new Point(0, 0));
}