我正在尝试使用 winapi 在 C# windows 窗体的消息框中单击“确定”按钮。下面是我正在处理的代码。
private const int WM_CLOSE = 16;
private const int BN_CLICKED = 245;
[DllImport("user32.dll", CharSet=CharSet.Auto)]
public static extern int SendMessage(int hWnd, int msg, int wParam, IntPtr lParam);
[DllImport("user32.dll", SetLastError = true)]
public static extern IntPtr FindWindowEx(IntPtr parentHandle, IntPtr childAfter, string className, string windowTitle);
//this works
hwnd = FindWindow(null, "Message");
if(hwnd!=0)
SendMessage(hwnd, WM_CLOSE, 0, IntPtr.Zero);
//this doesn't work.
hwndChild = FindWindowEx((IntPtr)hwnd, IntPtr.Zero, "Button", "ok");
SendMessage((int)hwndChild, BN_CLICKED, 0, IntPtr.Zero);
虽然我得到了一个值hwndChild
,但它没有识别BN_CLICKED
。我不确定我错过了什么。有什么帮助吗?
我正在尝试关闭另一个应用程序的消息框按钮,这就是我正在做的事情。但是,我仍然缺少一些东西。
IntPtr hwndChild = IntPtr.Zero;
hwndChild = FindWindowEx((IntPtr)hwnd, IntPtr.Zero,' '"Button", "OK");
SendMessage((int)hwndChild, WM_COMMAND, (BN_CLICKED '<<16) | IDOK, hwndChild);