大家好
在C#中如何检测用户单击了外部程序(例如记事本)的最小化按钮?
谢谢
这应该有效:
public class myClass
{
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool GetWindowPlacement(IntPtr hWnd, ref WINDOWPLACEMENT lpwndpl);
const UInt32 SW_HIDE = 0;
const UInt32 SW_SHOWNORMAL = 1;
const UInt32 SW_NORMAL = 1;
const UInt32 SW_SHOWMINIMIZED = 2;
const UInt32 SW_SHOWMAXIMIZED = 3;
const UInt32 SW_MAXIMIZE = 3;
const UInt32 SW_SHOWNOACTIVATE = 4;
const UInt32 SW_SHOW = 5;
const UInt32 SW_MINIMIZE = 6;
const UInt32 SW_SHOWMINNOACTIVE = 7;
const UInt32 SW_SHOWNA = 8;
const UInt32 SW_RESTORE = 9;
public myClass()
{
var proc = Process.GetProcessesByName("notepad");
if (proc.Length > 0)
{
bool isNotepadMinimized = myClass.GetMinimized(proc[0].MainWindowHandle);
if (isNotepadMinimized)
Console.WriteLine("Notepad is Minimized!");
}
}
private struct WINDOWPLACEMENT
{
public int length;
public int flags;
public int showCmd;
public System.Drawing.Point ptMinPosition;
public System.Drawing.Point ptMaxPosition;
public System.Drawing.Rectangle rcNormalPosition;
}
public static bool GetMinimized(IntPtr handle)
{
WINDOWPLACEMENT placement = new WINDOWPLACEMENT();
placement.length = Marshal.SizeOf(placement);
GetWindowPlacement(handle, ref placement);
return placement.flags == SW_SHOWMINIMIZED;
}
}
编辑:只需重新阅读您的问题,并注意到您希望在记事本最小化时收到通知。那么您可以在计时器中使用上面的代码来轮询状态更改。
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