[RESOLVED] GetPixel on a WebBrowser

[bim11]

het solved

[Edgemeal]

To be honest I have no idea but I found some code on the web and then pieced this together, and it seems to work. Tested using a single browser control on a form.

Option Explicit

Private Declare Function GetPixel Lib "gdi32" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long) As Long
Private Declare Function GetDC Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function ReleaseDC Lib "user32" (ByVal hwnd As Long, ByVal hdc As Long) 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

Private Sub Command1_Click()

    Dim WebDC As Long
    Dim Lcolor As Long
    Dim hWnd1 As Long, hWnd2 As Long, hwnd3 As Long
    
    Const strClass1 As String = "Shell Embedding"
    Const strClass2 As String = "Shell DocObject View"
    Const strClass3 As String = "Internet Explorer_Server"
    
    hWnd1 = FindWindowEx(Me.hwnd, 0, strClass1, vbNullString)
    hWnd2 = FindWindowEx(hWnd1, 0, strClass2, vbNullString)
    hwnd3 = FindWindowEx(hWnd2, 0, strClass3, vbNullString)
    
    WebDC = GetDC(hwnd3)
    
    If WebDC Then
        Lcolor = GetPixel(WebDC, 50, 50)
        Debug.Print Lcolor ' color @ 50,50
        ReleaseDC 0, WebDC
    End If

End Sub

[bim11]

het solved

[Edgemeal]

The only way I know how to do that would be to use the EnumChildWindows API function. You could find all the "Shell Embedding" classes in the form, then figure that Hwnd3 you need and add that to a listbox or array. Once you know what the order the browsers are in the listbox/array the rest should be pretty simple.

I could probably post up an example later if you're still stuck.

[Edgemeal]

Well here is what I came up with, if you know a better way please post it!

[bim11]

het solved

[Edgemeal]

Nice code. Worked a treat


Thanks bro.

Glad I could help!

[EntityReborn]

I realise that this post is a little old, but bim11 I can't help but want to chew you a new one... You had a valid question, and when it was answered... you erased it. Yes, given that the answers and title lead me to believe you were looking for a way to get a pixel from within a browser window, but it goes without saying, don't modify your posts when someone else could have exactly the same problem.

FYI, this was not what I was looking for, but thats besides the point.