问题
I am attempting to use this code sample to control the Windows XP On-Screen Keyboard (OSK.exe) from a C# (.NET 3.5) Winforms application:
[DllImport("User32.dll")]public static extern Int32 SetForegroundWindow(int hWnd);
[DllImport("user32.dll")]public static extern int FindWindow(string lpClassName, string lpWindowName);
private void BringToFront(string className,string CaptionName)
{
SetForegroundWindow(FindWindow(className,CaptionName));
}
private void Form1_Load(object sender, EventArgs e)
{
BringToFront("Notepad", "Untitled - Notepad");
}
How do I determine the accurate className? I assume that the CaptionName is 'On-Screen Keyboard'.
回答1:
Looks like the classname is: "OSKMainClass"
Here is the code I used to find this. It's just a simple C# Forms App
[DllImport("User32.dll")]
public static extern Int32 SetForegroundWindow(int hWnd);
[DllImport("user32.dll")]
public static extern int FindWindow(string lpClassName, string lpWindowName);
[DllImport("user32.dll")]
public static extern int GetClassName(int hWnd, StringBuilder lpClassName, int nMaxCount);
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
int hWnd = FindWindow(null, "On-Screen Keyboard");
StringBuilder buffer = new StringBuilder(128);
GetClassName(hWnd, buffer, buffer.Capacity);
MessageBox.Show(buffer.ToString());
}
Got this from the following sources Activate Any Window With API and MSDN GetClassName function
来源:https://stackoverflow.com/questions/3604033/finding-the-class-name-of-the-on-screen-keyboard