【已解决】C#中获得当前任务栏的大小(宽度和高度）和位置(X,Y) 和当前屏幕的右下角位置(X,Y) – 均支持任务栏的下右上左四种模式

【问题】

在折腾：

的过程中，需要知道任务栏的高度和位置，才能准确将子窗体显示在右下角。

【解决过程】

1.参考：

How do I get the taskbar’s position and size?

去写了代码：

Rectangle taskbarRect = Screen.PrimaryScreen.WorkingArea;

然后调试的结果是：

而对应的屏幕分辨率是1680×1050：

对应的当前任务栏是在屏幕下面的：

2.又去测试了其他几种情况：

任务栏是在右边的：

然后调试结果是：

任务栏在上面的：

任务栏在左边的：

3.由此，继续去调试，期间遇到想要设置窗口位置的问题，后来解决了，详参：

【已解决】C#中通过代码改变/设置窗口的位置(Location)

4.最终整理出算法，始终希望窗口位置显示在屏幕边角，贴近任务栏中是显示时间的那个位置：

// get current right bottom corner position(X, Y), support four mode: taskbar bottom/right/up/left
public Point getCornerLocation()
{
    int xPos = 0, yPos = 0;

    if( (Screen.PrimaryScreen.Bounds.Width == Screen.PrimaryScreen.WorkingArea.Width) &&
        (Screen.PrimaryScreen.WorkingArea.Y == 0))
    {
        //taskbar bottom
        xPos = Screen.PrimaryScreen.WorkingArea.Width - this.Size.Width;
        yPos = Screen.PrimaryScreen.WorkingArea.Height - this.Size.Height;
    }
    else if((Screen.PrimaryScreen.Bounds.Height == Screen.PrimaryScreen.WorkingArea.Height) &&
            (Screen.PrimaryScreen.WorkingArea.X == 0) )
    {
        //taskbar right
        xPos = Screen.PrimaryScreen.WorkingArea.Width - this.Size.Width;
        yPos = Screen.PrimaryScreen.WorkingArea.Height - this.Size.Height;
    }
    else if((Screen.PrimaryScreen.Bounds.Width == Screen.PrimaryScreen.WorkingArea.Width) &&
            (Screen.PrimaryScreen.WorkingArea.Y > 0) )
    {
        //taskbar up
        xPos = Screen.PrimaryScreen.WorkingArea.Width - this.Size.Width;
        yPos = Screen.PrimaryScreen.WorkingArea.Y;
    }
    else if ((Screen.PrimaryScreen.Bounds.Height == Screen.PrimaryScreen.WorkingArea.Height) &&
            (Screen.PrimaryScreen.WorkingArea.X > 0))
    {
        //taskbar left
        xPos = Screen.PrimaryScreen.WorkingArea.X;
        yPos = Screen.PrimaryScreen.WorkingArea.Height - this.Size.Height;
    }

    return new Point(xPos, yPos);
}

private void completeHint_Load(object sender, EventArgs e)
{
    this.Location = getCornerLocation();
}

5.然后，又花时间，整理出来函数，可以获得当前屏幕的任务栏的大小：

// get current taskbar size(width, height), support four mode: taskbar bottom/right/up/left
public Size getCurTaskbarSize()
{
    int width = 0, height = 0;

    if ((Screen.PrimaryScreen.Bounds.Width == Screen.PrimaryScreen.WorkingArea.Width) &&
        (Screen.PrimaryScreen.WorkingArea.Y == 0))
    {
        //taskbar bottom
        width = Screen.PrimaryScreen.WorkingArea.Width;
        height = Screen.PrimaryScreen.Bounds.Height - Screen.PrimaryScreen.WorkingArea.Height;
    }
    else if ((Screen.PrimaryScreen.Bounds.Height == Screen.PrimaryScreen.WorkingArea.Height) &&
            (Screen.PrimaryScreen.WorkingArea.X == 0))
    {
        //taskbar right
        width = Screen.PrimaryScreen.Bounds.Width - Screen.PrimaryScreen.WorkingArea.Width;
        height = Screen.PrimaryScreen.WorkingArea.Height;
    }
    else if ((Screen.PrimaryScreen.Bounds.Width == Screen.PrimaryScreen.WorkingArea.Width) &&
            (Screen.PrimaryScreen.WorkingArea.Y > 0))
    {
        //taskbar up
        width = Screen.PrimaryScreen.WorkingArea.Width;
        //height = Screen.PrimaryScreen.WorkingArea.Y;
        height = Screen.PrimaryScreen.Bounds.Height - Screen.PrimaryScreen.WorkingArea.Height;
    }
    else if ((Screen.PrimaryScreen.Bounds.Height == Screen.PrimaryScreen.WorkingArea.Height) &&
            (Screen.PrimaryScreen.WorkingArea.X > 0))
    {
        //taskbar left
        width = Screen.PrimaryScreen.Bounds.Width - Screen.PrimaryScreen.WorkingArea.Width;
        height = Screen.PrimaryScreen.WorkingArea.Height;
    }

    return new Size(width, height);
}

private void completeHint_Load(object sender, EventArgs e)
{
    Size curTaskbarSize = getCurTaskbarSize();
}

【总结】

凡事，还是要靠自己，靠别人还是不靠谱。

C#中，获得当前任务栏的大小，以及获得当前屏幕的边角（靠近任务栏中时间的那个）位置的相关代码如下：

// get current taskbar size(width, height), support four mode: taskbar bottom/right/up/left
public Size getCurTaskbarSize()
{
    int width = 0, height = 0;

    if ((Screen.PrimaryScreen.Bounds.Width == Screen.PrimaryScreen.WorkingArea.Width) &&
        (Screen.PrimaryScreen.WorkingArea.Y == 0))
    {
        //taskbar bottom
        width = Screen.PrimaryScreen.WorkingArea.Width;
        height = Screen.PrimaryScreen.Bounds.Height - Screen.PrimaryScreen.WorkingArea.Height;
    }
    else if ((Screen.PrimaryScreen.Bounds.Height == Screen.PrimaryScreen.WorkingArea.Height) &&
            (Screen.PrimaryScreen.WorkingArea.X == 0))
    {
        //taskbar right
        width = Screen.PrimaryScreen.Bounds.Width - Screen.PrimaryScreen.WorkingArea.Width;
        height = Screen.PrimaryScreen.WorkingArea.Height;
    }
    else if ((Screen.PrimaryScreen.Bounds.Width == Screen.PrimaryScreen.WorkingArea.Width) &&
            (Screen.PrimaryScreen.WorkingArea.Y > 0))
    {
        //taskbar up
        width = Screen.PrimaryScreen.WorkingArea.Width;
        //height = Screen.PrimaryScreen.WorkingArea.Y;
        height = Screen.PrimaryScreen.Bounds.Height - Screen.PrimaryScreen.WorkingArea.Height;
    }
    else if ((Screen.PrimaryScreen.Bounds.Height == Screen.PrimaryScreen.WorkingArea.Height) &&
            (Screen.PrimaryScreen.WorkingArea.X > 0))
    {
        //taskbar left
        width = Screen.PrimaryScreen.Bounds.Width - Screen.PrimaryScreen.WorkingArea.Width;
        height = Screen.PrimaryScreen.WorkingArea.Height;
    }

    return new Size(width, height);
}

// get current right bottom corner position(X, Y), support four mode: taskbar bottom/right/up/left
public Point getCornerLocation()
{
    int xPos = 0, yPos = 0;

    if( (Screen.PrimaryScreen.Bounds.Width == Screen.PrimaryScreen.WorkingArea.Width) &&
        (Screen.PrimaryScreen.WorkingArea.Y == 0))
    {
        //taskbar bottom
        xPos = Screen.PrimaryScreen.WorkingArea.Width - this.Size.Width;
        yPos = Screen.PrimaryScreen.WorkingArea.Height - this.Size.Height;
    }
    else if((Screen.PrimaryScreen.Bounds.Height == Screen.PrimaryScreen.WorkingArea.Height) &&
            (Screen.PrimaryScreen.WorkingArea.X == 0) )
    {
        //taskbar right
        xPos = Screen.PrimaryScreen.WorkingArea.Width - this.Size.Width;
        yPos = Screen.PrimaryScreen.WorkingArea.Height - this.Size.Height;
    }
    else if((Screen.PrimaryScreen.Bounds.Width == Screen.PrimaryScreen.WorkingArea.Width) &&
            (Screen.PrimaryScreen.WorkingArea.Y > 0) )
    {
        //taskbar up
        xPos = Screen.PrimaryScreen.WorkingArea.Width - this.Size.Width;
        yPos = Screen.PrimaryScreen.WorkingArea.Y;
    }
    else if ((Screen.PrimaryScreen.Bounds.Height == Screen.PrimaryScreen.WorkingArea.Height) &&
            (Screen.PrimaryScreen.WorkingArea.X > 0))
    {
        //taskbar left
        xPos = Screen.PrimaryScreen.WorkingArea.X;
        yPos = Screen.PrimaryScreen.WorkingArea.Height - this.Size.Height;
    }

    return new Point(xPos, yPos);
}

private void completeHint_Load(object sender, EventArgs e)
{
    Size curTaskbarSize = getCurTaskbarSize();

    this.Location = getCornerLocation();
}

【后记 2012-09-25】

后来，又添加了，获得当前任务栏的位置的函数。

全部的代码如下：

using System.Drawing;
using System.Windows.Forms;

/*********************************************************************/
/* Screen */
/*********************************************************************/

// get current taskbar size(width, height), support 4 mode: taskbar bottom/right/up/left
public Size getCurTaskbarSize()
{
    int width = 0, height = 0;

    if ((Screen.PrimaryScreen.Bounds.Width == Screen.PrimaryScreen.WorkingArea.Width) &&
        (Screen.PrimaryScreen.WorkingArea.Y == 0))
    {
        //taskbar bottom
        width = Screen.PrimaryScreen.WorkingArea.Width;
        height = Screen.PrimaryScreen.Bounds.Height - Screen.PrimaryScreen.WorkingArea.Height;
    }
    else if ((Screen.PrimaryScreen.Bounds.Height == Screen.PrimaryScreen.WorkingArea.Height) &&
            (Screen.PrimaryScreen.WorkingArea.X == 0))
    {
        //taskbar right
        width = Screen.PrimaryScreen.Bounds.Width - Screen.PrimaryScreen.WorkingArea.Width;
        height = Screen.PrimaryScreen.WorkingArea.Height;
    }
    else if ((Screen.PrimaryScreen.Bounds.Width == Screen.PrimaryScreen.WorkingArea.Width) &&
            (Screen.PrimaryScreen.WorkingArea.Y > 0))
    {
        //taskbar up
        width = Screen.PrimaryScreen.WorkingArea.Width;
        //height = Screen.PrimaryScreen.WorkingArea.Y;
        height = Screen.PrimaryScreen.Bounds.Height - Screen.PrimaryScreen.WorkingArea.Height;
    }
    else if ((Screen.PrimaryScreen.Bounds.Height == Screen.PrimaryScreen.WorkingArea.Height) &&
            (Screen.PrimaryScreen.WorkingArea.X > 0))
    {
        //taskbar left
        width = Screen.PrimaryScreen.Bounds.Width - Screen.PrimaryScreen.WorkingArea.Width;
        height = Screen.PrimaryScreen.WorkingArea.Height;
    }

    return new Size(width, height);
}

// get current taskbar position(X, Y), support 4 mode: taskbar bottom/right/up/left
public Point getCurTaskbarLocation()
{
    int xPos = 0, yPos = 0;

    if ((Screen.PrimaryScreen.Bounds.Width == Screen.PrimaryScreen.WorkingArea.Width) &&
        (Screen.PrimaryScreen.WorkingArea.Y == 0))
    {
        //taskbar bottom
        xPos = 0;
        yPos = Screen.PrimaryScreen.WorkingArea.Height;
    }
    else if ((Screen.PrimaryScreen.Bounds.Height == Screen.PrimaryScreen.WorkingArea.Height) &&
            (Screen.PrimaryScreen.WorkingArea.X == 0))
    {
        //taskbar right
        xPos = Screen.PrimaryScreen.WorkingArea.Width;
        yPos = 0;
    }
    else if ((Screen.PrimaryScreen.Bounds.Width == Screen.PrimaryScreen.WorkingArea.Width) &&
            (Screen.PrimaryScreen.WorkingArea.Y > 0))
    {
        //taskbar up
        xPos = 0;
        yPos = 0;
    }
    else if ((Screen.PrimaryScreen.Bounds.Height == Screen.PrimaryScreen.WorkingArea.Height) &&
            (Screen.PrimaryScreen.WorkingArea.X > 0))
    {
        //taskbar left
        xPos = 0;
        yPos = 0;
    }

    return new Point(xPos, yPos);
}

// get current right bottom corner position(X, Y), support 4 mode: taskbar bottom/right/up/left
public Point getCornerLocation(Size windowSize)
{
    int xPos = 0, yPos = 0;

    if ((Screen.PrimaryScreen.Bounds.Width == Screen.PrimaryScreen.WorkingArea.Width) &&
        (Screen.PrimaryScreen.WorkingArea.Y == 0))
    {
        //taskbar bottom
        xPos = Screen.PrimaryScreen.WorkingArea.Width - windowSize.Width;
        yPos = Screen.PrimaryScreen.WorkingArea.Height - windowSize.Height;
    }
    else if ((Screen.PrimaryScreen.Bounds.Height == Screen.PrimaryScreen.WorkingArea.Height) &&
            (Screen.PrimaryScreen.WorkingArea.X == 0))
    {
        //taskbar right
        xPos = Screen.PrimaryScreen.WorkingArea.Width - windowSize.Width;
        yPos = Screen.PrimaryScreen.WorkingArea.Height - windowSize.Height;
    }
    else if ((Screen.PrimaryScreen.Bounds.Width == Screen.PrimaryScreen.WorkingArea.Width) &&
            (Screen.PrimaryScreen.WorkingArea.Y > 0))
    {
        //taskbar up
        xPos = Screen.PrimaryScreen.WorkingArea.Width - windowSize.Width;
        yPos = Screen.PrimaryScreen.WorkingArea.Y;
    }
    else if ((Screen.PrimaryScreen.Bounds.Height == Screen.PrimaryScreen.WorkingArea.Height) &&
            (Screen.PrimaryScreen.WorkingArea.X > 0))
    {
        //taskbar left
        xPos = Screen.PrimaryScreen.WorkingArea.X;
        yPos = Screen.PrimaryScreen.WorkingArea.Height - windowSize.Height;
    }

    return new Point(xPos, yPos);
}

函数使用举例：

private void completeHint_Load(object sender, EventArgs e)
{
    Size curTaskbarSize = crl.getCurTaskbarSize();
    Point curTaskbarLocation = crl.getCurTaskbarLocation();
    this.Location = crl.getCornerLocation(this.Size);
}

另，上述所有函数，都已整理至：

crifan的C#函数库：crifanLib.cs

转载请注明：在路上 » 【已解决】C#中获得当前任务栏的大小(宽度和高度）和位置(X,Y) 和当前屏幕的右下角位置(X,Y) – 均支持任务栏的下右上左四种模式

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【已解决】C#中获得当前任务栏的大小(宽度和高度）和位置(X,Y) 和当前屏幕的右下角位置(X,Y) – 均支持任务栏的下右上左四种模式

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