wpf 查找鼠标指针所在的监视器/屏幕
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Finding Monitor/Screen on which mouse pointer is present
提问by Mustahsan Abdullah
I will start from beginning, I aw working on an application which will span over multiple monitors, each monitor will contain a single WPF window and these windows are controled using a single viewmodel class. now lets say i have a button on all the windows at 200,300 (x,y) and i want that this button should be responsible for a tool on same window, while all rest are responsible for the application. When i try to get current mouse position or last click position i get position relative to the current monitor , i.e. in this case 200,300, irrespective of in what screen i am on.
我将从头开始，我将开发一个跨越多个监视器的应用程序，每个监视器将包含一个 WPF 窗口，并且这些窗口使用一个视图模型类进行控制。现在假设我在 200,300 (x,y) 处的所有窗口上都有一个按钮，我希望这个按钮应该负责同一个窗口上的工具，而其余的都负责应用程序。当我尝试获取当前鼠标位置或上次点击位置时，我会获得相对于当前显示器的位置，即在这种情况下为 200,300，无论我在哪个屏幕上。
following sre the code i tried for getting mouse position
按照 sre 我尝试获取鼠标位置的代码
[DllImport("user32.dll")] [return: MarshalAs(UnmanagedType.Bool)] internal static extern bool GetCursorPos(ref Win32Point pt); [StructLayout(LayoutKind.Sequential)] internal struct Win32Point { public Int32 X; public Int32 Y; }; public static Point GetMousePosition() { Win32Point w32Mouse = new Win32Point(); GetCursorPos(ref w32Mouse); return new Point(w32Mouse.X, w32Mouse.Y); }Point point = Control.MousePosition;Mouse.GetPosition(null);
[DllImport("user32.dll")] [return: MarshalAs(UnmanagedType.Bool)] internal static extern bool GetCursorPos(ref Win32Point pt); [StructLayout(LayoutKind.Sequential)] internal struct Win32Point { public Int32 X; public Int32 Y; }; public static Point GetMousePosition() { Win32Point w32Mouse = new Win32Point(); GetCursorPos(ref w32Mouse); return new Point(w32Mouse.X, w32Mouse.Y); }Point point = Control.MousePosition;Mouse.GetPosition(null);
following is the code which should return me the screen no.
以下是应该返回屏幕编号的代码。
private int ConvertMousePointToScreenIndex(System.Windows.Point mousePoint)
{
//first get all the screens
System.Drawing.Rectangle ret;
for (int i = 1; i <= System.Windows.Forms.Screen.AllScreens.Count(); i++)
{
ret = System.Windows.Forms.Screen.AllScreens[i - 1].Bounds;
if (ret.Contains(new System.Drawing.Point((int)mousePoint.X, (int)mousePoint.Y)))
return i - 1;
}
return 0;
}
I always get screen as 0 :( Please help me in getting appropriate value
我总是将屏幕设为 0 :( 请帮助我获得适当的值
采纳答案by Mustahsan Abdullah
Thanks KnottytOmo, it worked now, may be there was something else wrong at that moment. I changed my code to
感谢 KnottytOmo，它现在起作用了，当时可能还有其他问题。我将代码更改为
private int ConvertMousePointToScreenIndex(Point mousePoint)
{
//first get all the screens
System.Drawing.Rectangle ret;
for (int i = 1; i <= Screen.AllScreens.Count(); i++)
{
ret = Screen.AllScreens[i - 1].Bounds;
if (ret.Contains(mousePoint))
return i - 1;
}
return 0;
}
and called it as ConvertMousePointToScreenIndex(System.Windows.Forms.Cursor.Position);
并将其称为 ConvertMousePointToScreenIndex(System.Windows.Forms.Cursor.Position);
回答by KnottytOmo
Could you use the Screenstatic class?
你可以使用Screen静态类吗？
For example, something like:
例如，类似于：
Screen s = Screen.FromPoint(Cursor.Position);
Or get the current screen from a particular form using:
或者使用以下命令从特定表单获取当前屏幕：
Screen s = Screen.FromControl(this);
With thisbeing your Form control.
随着this被你的窗体控件。
http://msdn.microsoft.com/en-us/library/system.windows.forms.screen.aspx
http://msdn.microsoft.com/en-us/library/system.windows.forms.screen.aspx
