为什么我得到以下高度和宽度0:
static void Main(string[] args)
{
Process notePad = new Process();
notePad.StartInfo.FileName = "notepad.exe";
notePad.Start();
IntPtr handle = notePad.Handle;
RECT windowRect = new RECT();
GetWindowRect(handle, ref windowRect);
int width = windowRect.Right - windowRect.Left;
int height = windowRect.Bottom - windowRect.Top;
Console.WriteLine("Height: " + height + ", Width: " + width);
Console.ReadLine();
}
这是我对GetWindowRect的定义:
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool GetWindowRect(IntPtr hWnd, ref RECT lpRect);
这是我对RECT的定义:
[StructLayout(LayoutKind.Sequential)]
public struct RECT
{
public int Left; // x position of upper-left corner
public int Top; // y position of upper-left corner
public int Right; // x position of lower-right corner
public int Bottom; // y position of lower-right corner
}
谢谢大家的帮助。
最佳答案
您正在将进程句柄传递给需要窗口句柄的函数GetWindowRect
。自然,这失败了。您应该改为发送Notepad.MainWindowHandle
。