模拟按钮点击

Question

如何模拟可视化单击表单中的按钮(WinForms)？

我不是说：

Button_Press(MyButton, new KeyPressEventArgs());

我希望用户看到(视觉上)被点击的按钮。

我当然不想用

SendKeys.Send("{ENTER}")

或其他类似的功能。

Answer 1

如果使用RadioButton而不是普通按钮，则可以将其.Appearance属性设置为" Button“，然后从其他地方修改其.Checked属性。

例如：

this.radioButton1.Appearance = Appearance.Button;

然后打电话：

this.radioButton1.Checked = true;

或

this.radioButton1.Checked = false;

它看起来就像一个普通的按钮。

Answer 2

Button1.PerformClick

很简单的一个班轮。这就是你要的。

Answer 3

没有干净的方法可以做到这一点。我知道的唯一方法是使用来自mouse_event的user32.dll函数。这还要求您暂时将光标移动到所需的位置，执行单击，然后将其移回。

[DllImport("user32.dll", CharSet = CharSet.Auto, 
 CallingConvention = CallingConvention.StdCall)]
public static extern void mouse_event(long dwFlags, long dx, long dy, 
    long cButtons, long dwExtraInfo);

private const int MOUSEEVENTF_LEFTDOWN = 0x02;
private const int MOUSEEVENTF_LEFTUP = 0x04;
private const int MOUSEEVENTF_RIGHTDOWN = 0x08;
private const int MOUSEEVENTF_RIGHTUP = 0x10;

public void ClickMouseLeftButton(Point globalLocation)
{
    Point currLocation = Cursor.Position;

    Cursor.Position = globalLocation;

    mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, 
        globalLocation.X, globalLocation.Y, 0, 0);

    Cursor.Position = currLocation;
}

public void ClickControl(Control target, Point localLocation)
{
    ClickMouseLeftButton(target.PointToScreen(localLocation));
}

public void ClickControl(Control target)
{
    ClickControl(target, new Point(target.Width / 2, target.Height / 2));
}

或者，您可以将其转换为扩展方法：

public static class ControlExtensions
{
    [DllImport("user32.dll", CharSet = CharSet.Auto, 
     CallingConvention = CallingConvention.StdCall)]
    private static extern void mouse_event(long dwFlags, long dx, long dy, 
        long cButtons, long dwExtraInfo);

    private const int MOUSEEVENTF_LEFTDOWN = 0x02;
    private const int MOUSEEVENTF_LEFTUP = 0x04;
    private const int MOUSEEVENTF_RIGHTDOWN = 0x08;
    private const int MOUSEEVENTF_RIGHTUP = 0x10;

    private static void ClickMouseLeftButton(Point globalLocation)
    {
        Point currLocation = Cursor.Position;

        Cursor.Position = globalLocation;

        mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, 
            globalLocation.X, globalLocation.Y, 0, 0);

        Cursor.Position = currLocation;
    }

    public static void ClickMouse(this Control target, Point localLocation)
    {
        ClickMouseLeftButton(target.PointToScreen(localLocation));
    }

    public static void ClickMouse(this Control target)
    {
        ClickMouse(target, new Point(target.Width / 2, target.Height / 2));
    }
}

这将允许您调用controlName.ClickMouse();