我正在尝试使用C#应用程序滚动记事本窗口。相关代码块在下面，移动/调整窗口大小的调用有效，因此我知道该句柄有效
请您看看我在运行时什么都不会丢失。
[Flags]
public enum SetWindowPosFlags : uint
{
SWP_ASYNCWINDOWPOS = 0x4000,
SWP_DEFERERASE = 0x2000,
SWP_DRAWFRAME = 0x0020,
SWP_FRAMECHANGED = 0x0020,
SWP_HIDEWINDOW = 0x0080,
SWP_NOACTIVATE = 0x0010,
SWP_NOCOPYBITS = 0x0100,
SWP_NOMOVE = 0x0002,
SWP_NOOWNERZORDER = 0x0200,
SWP_NOREDRAW = 0x0008,
SWP_NOREPOSITION = 0x0200,
SWP_NOSENDCHANGING = 0x0400,
SWP_NOSIZE = 0x0001,
SWP_NOZORDER = 0x0004,
SWP_SHOWWINDOW = 0x0040,
}
private const int WM_SCROLL = 276; // Horizontal scroll
private const int WM_VSCROLL = 277; // Vertical scroll
private const int SB_LINEUP = 0; // Scrolls one line up
private const int SB_LINELEFT = 0;// Scrolls one cell left
private const int SB_LINEDOWN = 1; // Scrolls one line down
private const int SB_LINERIGHT = 1;// Scrolls one cell right
private const int SB_PAGEUP = 2; // Scrolls one page up
private const int SB_PAGELEFT = 2;// Scrolls one page left
private const int SB_PAGEDOWN = 3; // Scrolls one page down
private const int SB_PAGERIGTH = 3; // Scrolls one page right
private const int SB_PAGETOP = 6; // Scrolls to the upper left
private const int SB_LEFT = 6; // Scrolls to the left
private const int SB_PAGEBOTTOM = 7; // Scrolls to the upper right
private const int SB_RIGHT = 7; // Scrolls to the right
private const int SB_ENDSCROLL = 8; // Ends scroll
[DllImport("user32.dll", CharSet = CharSet.Auto)]
private static extern IntPtr SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, IntPtr lParam);
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, SetWindowPosFlags uFlags);
public void scroll()
{
IntPtr handle = IntPtr.Zero;
Process[] processes = Process.GetProcessesByName("Notepad");
foreach (Process p in processes)
{
handle = p.MainWindowHandle;
Console.WriteLine("Got Handle: " + p.MainWindowTitle);
break;
}
//this is to test I have a valid handle
SetWindowPos(handle, new IntPtr(0), 10, 10, 1024, 350, SetWindowPosFlags.SWP_DRAWFRAME);
SendMessage(handle, WM_VSCROLL, (IntPtr)SB_LINEDOWN, IntPtr.Zero);
SendMessage(handle, WM_VSCROLL, (IntPtr)SB_PAGEDOWN, IntPtr.Zero);
}
最佳答案
这将失败，因为您正在将WM_VSCROLL消息发送到主窗口。您需要将消息发送到记事本的编辑控件，该控件是带有滚动条的窗口。
您可以使用EnumChildWindows枚举记事本的子窗口。您想要的是“编辑”类的 child 。
关于c# - 使用C#和WIN32滚动记事本，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/9300635/