c# - How to compare a two Cursor objects?

Question

I am creating an unit test and I have a Cursor that should be made from a specific Bitmap. The Cursor is created using the following code:

cursor = new Cursor(bmp.GetHicon());

where bmp is a Bitmap.

This always maked the test fail (the handle created by bmp.GetHicon() is always new):

Assert.AreEqual(bmp.GetHicon(), cursor.Handle);

I also thought of using Icon.FromHandle.

标签： c#winformsunit-testingbitmap

Answer 1

事实上，您正在寻找如何比较两个游标。

你有位图，你有一个光标，你想检查光标是否是使用位图创建的。为此，作为一种选择，从位图创建一个游标，然后进行比较，将这两个游标（从位图创建的新游标和现有游标）保存到流中并比较流。

例如：

bool ArEqual(Cursor cur1, Cursor cur2)
{
    byte[] bytes1, bytes2;
    using (var ico = Icon.FromHandle(cur1.Handle))
    using (var fs = new MemoryStream())
    {
        ico.Save(fs);
        bytes1 = fs.ToArray();
    }
    using (var ico = Icon.FromHandle(cur2.Handle))
    using (var fs = new MemoryStream())
    {
        ico.Save(fs);
        bytes2 = fs.ToArray();
    }
    return bytes1.SequenceEqual(bytes2);
}