C# 与C++怎样通过CopyData传送字体
现在C#的结构体里有字体类型Font font;，C++的结构体应该用什么类型与之对应呢？
[解决办法]
你是想通过WM_COPYDATA传递字体的FONT内容吧，直接传地址即可（32位整数），接收方根据地址解析出FONT的内容。
[解决办法]
[C# Code]
public struct COPYDATASTRUCT
{
public IntPtr dwData;
public int cbData;
[MarshalAs(UnmanagedType.LPStr)]
public string lpData;
}
[DllImport("User32.dll", EntryPoint = "FindWindow")]
private static extern int FindWindow(string lpClassName, string lpWindowName);
[DllImport("User32.dll", EntryPoint = "SendMessage")]
private static extern int SendMessage(int hWnd, int Msg, int wParam, ref COPYDATASTRUCT lParam);
private void SendMsg(string args, string name)
{
string txtContent = args;
int WINDOW_HANDLER = (int)FindWindow(null, name);
if (WINDOW_HANDLER != 0)
{
byte[] sarr = System.Text.Encoding.Default.GetBytes(txtContent);
int len = sarr.Length;
COPYDATASTRUCT cds;
cds.dwData = (IntPtr)100;
cds.lpData = txtContent;
cds.cbData = len + 1;
SendMessage(WINDOW_HANDLER, WM_COPYDATA, 0, ref cds);
}
}
[code]
