我在 C# 中有这段代码:
[DllImport("user32.dll", CharSet = CharSet.Unicode)]
static extern uint RegisterWindowMessage(string lpProcName);
[DllImport("user32.dll")]
private static extern IntPtr SendMessage(
IntPtr hWnd, int Msg, IntPtr wParam, IntPtr lParam);
我需要将其从 C++ 转换为 C#:
UINT UWM_UART_CTRL_TRS = ::RegisterWindowMessage(_T("BT_UARTCTRL_TRANSFER"));
::SendMessage(HWND_BROADCAST, UWM_UART_CTRL_TRS, 0, 0);
还有这个:
UINT UWM_UART_CTRL_TRS = ::RegisterWindowMessage(_T("BT_UARTCTRL_TRANSFER"));
::SendMessage(HWND_BROADCAST, UWM_UART_CTRL_TRS, 1, 0);
提前致谢
最佳答案
应该很简单。您需要在包含它们的类中将 PInvoke 定义更改为 public
:
public class Win32Api
{
[DllImport("user32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern uint RegisterWindowMessage(string lpString);
[DllImport("user32.dll", SetLastError = true)]
public static extern IntPtr SendMessage(
IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);
}
然后对于调用,它们看起来像这样:
uint UWM_UART_CTRL_TRS = Win32Api.RegisterWindowMessage("BT_UARTCTRL_TRANSFER");
Win32Api.SendMessage(HWND_BROADCAST, UWM_UART_CTRL_TRS, (IntPtr)0, (IntPtr)0);
还有这个:
uint UWM_UART_CTRL_TRS = Win32Api.RegisterWindowMessage("BT_UARTCTRL_TRANSFER");
Win32Api.SendMessage(HWND_BROADCAST, UWM_UART_CTRL_TRS, (IntPtr)1, (IntPtr)0);
关于c# - 需要 RegisterWindowMessage 和 SendMessage 从 c++ 到 c# 的帮助,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7284974/