C# 获取活动应用程序';第一次单击鼠标时的名称
我正在尝试获取当前活动应用程序的名称,只需在该应用程序中单击第一次鼠标 我的意思是:当我总是在同一个应用程序上时,我不想每次用户点击应用程序时都得到应用程序的名称。我的代码确实运行得很好,但它会在每次鼠标单击时写入应用程序名称 如果我只想在用户单击另一个应用程序时获取应用程序的名称,如何更改它C# 获取活动应用程序';第一次单击鼠标时的名称,c#,C#,我正在尝试获取当前活动应用程序的名称,只需在该应用程序中单击第一次鼠标 我的意思是:当我总是在同一个应用程序上时,我不想每次用户点击应用程序时都得到应用程序的名称。我的代码确实运行得很好,但它会在每次鼠标单击时写入应用程序名称 如果我只想在用户单击另一个应用程序时获取应用程序的名称,如何更改它 class InterceptMouse { private static LowLevelMouseProc _proc = HookCallback; private static I
class InterceptMouse
{
private static LowLevelMouseProc _proc = HookCallback;
private static IntPtr _hookID = IntPtr.Zero;
private const int WM_LBUTTONDOWN = 0x0201;
private const int WH_MOUSE_LL = 14;
public static void Main()
{
_hookID = SetMouseHook(_proc);
Application.Run();
UnhookWindowsHookEx(_hookID);
}
private static IntPtr SetMouseHook(LowLevelMouseProc proc)
{
using (Process curProcess = Process.GetCurrentProcess())
using (ProcessModule curModule = curProcess.MainModule)
{
return SetWindowsHookEx(WH_MOUSE_LL, proc,
GetModuleHandle(curModule.ModuleName), 0);
}
}
private delegate IntPtr LowLevelMouseProc(int nCode, IntPtr wParam, IntPtr lParam);
private static IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode >= 0 && wParam == (IntPtr)WM_LBUTTONDOWN)
{
IntPtr hwnd2 = GetForegroundWindow();
StringBuilder windowtitle = new StringBuilder(256);
if (GetWindowText(hwnd2, windowtitle, windowtitle.Capacity) > 0)
Console.WriteLine(windowtitle);
}
return CallNextHookEx(_hookID, nCode, wParam, lParam);
}
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern IntPtr SetWindowsHookEx(int idHook,
LowLevelMouseProc lpfn, IntPtr hMod, uint dwThreadId);
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool UnhookWindowsHookEx(IntPtr hhk);
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode,
IntPtr wParam, IntPtr lParam);
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern IntPtr GetModuleHandle(string lpModuleName);
[DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
public static extern IntPtr GetForegroundWindow();
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString,
int nMaxCount);
}
你至少有两个明显的选择。一种是保留你最后一次看到的标题,如果下一个标题是最后一次看到的标题,那么写下它会让你感到惊讶
static string lastseen = null;
private static IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode >= 0 && wParam == (IntPtr)WM_LBUTTONDOWN)
{
IntPtr hwnd2 = GetForegroundWindow();
StringBuilder windowtitle = new StringBuilder(256);
if (GetWindowText(hwnd2, windowtitle, windowtitle.Capacity) > 0)
{
var title = windowtitle.ToString();
if (!String.Equals(lastseen, title)
{
lastseen = title;
Console.WriteLine(lastseen);
}
}
}
return CallNextHookEx(_hookID, nCode, wParam, lParam);
}
第二种选择是保留一组已看到的标题,将新标题添加到哈希集中,如果在哈希集中已找到一个标题,则会出现意外情况
static seen = new HashSet<string>();
private static IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode >= 0 && wParam == (IntPtr)WM_LBUTTONDOWN)
{
IntPtr hwnd2 = GetForegroundWindow();
StringBuilder windowtitle = new StringBuilder(256);
if (GetWindowText(hwnd2, windowtitle, windowtitle.Capacity) > 0)
{
var title = windowtitle.ToString();
if (!seen.Contains(title))
{
seen.Add(title);
Console.WriteLine(title);
}
}
}
return CallNextHookEx(_hookID, nCode, wParam, lParam);
}
static seen=new HashSet();
专用静态IntPtr钩子回调(int nCode、IntPtr wParam、IntPtr lParam)
{
if(nCode>=0&&wParam==(IntPtr)WM_LBUTTONDOWN)
{
IntPtr hwnd2=getforegroundindow();
StringBuilder windowtitle=新的StringBuilder(256);
if(GetWindowText(hwnd2,windowtitle,windowtitle.Capacity)>0)
{
var title=windowtitle.ToString();
如果(!seen.Contains(标题))
{
见.添加(标题);
控制台。写入线(标题);
}
}
}
返回CallNextHookEx(_hookID,nCode,wParam,lParam);
}
不知道api。但是我想首先你会得到窗口名,然后才能得到拥有它的进程如果你只想识别活动窗体的更改,那么事件不是更适合你的目的吗?