vb程序中webbrowser 接受SendMessage 的消息
webbrowser 不能收到SendMessage的消息
主要是因为1webbrowser 的句柄找不到。经过努力搜索，终于解决了。做个记录.
Private Declare Function PostMessage Lib "user32" Alias "PostMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long
Const WM_LBUTTONDOWN = &H201
Const WM_LBUTTONUP = &H202
Const MK_LBUTTON = &H1
'获得webbrowser的句柄
Public Function GetBrowserWindow(窗体句柄 As Long) As Long
Dim hwndPeer As Long
hwndPeer = FindWindowEx(窗体句柄, 0, "Shell Embedding", vbNullString)'网上很多帮助就找到这里就结束了，那是不能收到消息的。
hwndPeer = FindWindowEx(hwndPeer, 0, "Shell DocObject View", vbNullString)
hwndPeer = FindWindowEx(hwndPeer, 0, "Internet Explorer_Server", vbNullString)
GetBrowserWindow = hwndPeer
End Function
'按钮单击
Private Sub 命令_Click()
Dim t As String, x As Long, y As Long, w As WebBrowser, wbhwnd As Long, k As Long
x = 537'从WebBrowser控件左上角起0,0,坐标不是平时left、right、top、height那个坐标，可以直接复制控件到画图里面，看分辨录。
y = 44 * &H10000'弄成高位
wbhwnd = GetBrowserWindow(Form1.hwnd)
k = PostMessage(wbhwnd, WM_LBUTTONDOWN, MK_LBUTTON, ByVal ((y) + x))
k = PostMessage(wbhwnd, WM_LBUTTONUP, 0, (x + (y)))
End Sub
'测试通过。
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1、如何去优化你的VB程序
Visual Basic 作为一种高级编程语言，它也有着不可避免的缺点---开发出的应用程序运行速度慢。如果我们能够程序做一些优化，那么情况将会大大改善。要优化程序运行的实际速度，常用的方法有三种：
1.尽量避免使用 Variant 变量。由于VB不能确定 Variant 变量的� ......
Option Explicit
Private Const INTERNET_OPEN_TYPE_DIRECT = 1
Private Const scuseragent = "vb wininet"
Private Const INTERNET_FLAG_PASSIVE = &H8000000
'调用设置环境
Private Declare Function InternetOpen Lib "wininet.dll" Alias "InternetOpenA" (ByVal sAgent As String, ByVal lAccessType As Long ......
mxl=1 && 最大的文本框编号
mnl=1 &n ......
建一个模块
Public Declare Function GetOpenFileName Lib "comdlg32.dll" Alias "GetOpenFileNameA" (pOpenfilename As OPENFILENAME) As Long
Public Type OPENFILENAME
lStructSize As Long
hwndOwner As Long
hInstance As Long
lpstrFilter As String
lpstrCustomFilt ......
Private Sub Form_load()
'判断程序是否已经运行
If App.PrevInstance
Then
MsgBox "本程序已经运行！", vbInformation Or vbOKOnly, "提示信息"
Unload
Me
Exit Sub
&n ......
