vba把单元格内容发送给微信好友

要使用VBA将单元格内容发送给微信好友，需要先安装微信PC客户端并登录自己的微信账号，然后借助微信PC客户端的API实现。以下是实现步骤：

1. 打开VBA编辑器，创建一个新的模块。

2. 在模块中添加以下代码：

Option Explicit
Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long

Sub SendMessageToWeChat()
    Dim WeChatHWnd As Long
    Dim WeChatEditHWnd As Long
    Dim CellText As String
    
    '获取微信窗口句柄
    WeChatHWnd = FindWindow("WeChatMainWndForPC", vbNullString)
    If WeChatHWnd = 0 Then
        MsgBox "请先打开微信PC客户端并登录账号！", vbExclamation, "提示"
        Exit Sub
    End If
    
    '获取微信编辑框句柄
    WeChatEditHWnd = FindWindowEx(WeChatHWnd, 0&, "Edit", vbNullString)
    If WeChatEditHWnd = 0 Then
        MsgBox "发送消息失败，请重新尝试！", vbExclamation, "提示"
        Exit Sub
    End If
    
    '获取当前选择的单元格内容
    CellText = ActiveCell.Value
    
    '发送消息
    SendMessage WeChatEditHWnd, &HWM_SETTEXT, 0&, ByVal CellText
    SendMessage WeChatEditHWnd, &HWM_KEYDOWN, 13, 0&
    SendMessage WeChatEditHWnd, &HWM_KEYUP, 13, 0&
    
    MsgBox "消息发送成功！", vbInformation, "提示"
End Sub

3. 在Excel表格中选择一个单元格，然后执行该宏即可将该单元格的内容发送给微信好友。

需要注意的是，由于微信PC客户端的API并未公开，因此上述代码可能存在兼容性和稳定性问题，仅供参考。