为什么我用下面的高度和宽度为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.
解决方法
您正在将进程句柄传递给期望窗口句柄的函数GetWindowRect.当然,这失败了.您应该发送Notepad.MainWindowHandle.
