Disable DblClick event !

[hassan]

Is there a way to disable DblClick event on ActiveX control ?

The problem is, if I click on a control, MouseDown will run first, then MouseUp, but the next click, DblClick will run instade of MouseUp and MouseDown.

I want in all cases, MouseDown and MouseUp to run

[Megatron]

Double click will only run if you press the mouse fast enough.

[Megatron]

I guess you could always subclass your Form.

Add to a Module.

Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long
Declare Function SetWindowLong& Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long)
Declare Function CallWindowProc Lib "user32" Alias "CallWindowProcA" (ByVal lpPrevWndFunc As Long, ByVal hwnd As Long, ByVal msg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Const GWL_WNDPROC = (-4)
Const WM_LBUTTONDBLCLK = &H203

Global WndProcOld As Long

Public Function WindProc(ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
    If wMsg = WM_LBUTTONDBLCLK Then Exit Function
    WindProc = CallWindowProc(WndProcOld&, hwnd&, wMsg&, wParam&, lParam&)
End Function

Sub SubClassWnd(hwnd As Long)
    WndProcOld& = SetWindowLong(hwnd, GWL_WNDPROC, AddressOf WindProc)
End Sub

Sub UnSubclassWnd(hwnd As Long)
    SetWindowLong hwnd, GWL_WNDPROC, WndProcOld&
    WndProcOld& = 0
End Sub

Add to a Form.

Private Sub Form_Load()
    SubClassWnd hwnd
End Sub

Private Sub Form_Unload(Cancel As Integer)
    UnSubclassWnd hwnd
End Sub

[hassan]

Thanks Megatron for your reply..

Your code has diabled DblClick event but still i can not make MouseDown and MouseUp runs fast..

What I want is, even if you double click on a form (or
picturebox) the MouseDown and MouseUp should run,
like this : -

Click (1)
>> MouseDown
>> MouseUp
Click(2)
>> MouseDown
>> MouseUp

But it VB works like this: -
Click(1)
>> MouseDown
>> MouseUp
Click(2)
>> DblClick <-- here is the problem !

Plz help..

[Megatron]

Just send the WM_LBUTTONDOWN message on the double click message.

Replace the former Module with this one:

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
Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long
Declare Function SetWindowLong& Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long)
Declare Function CallWindowProc Lib "user32" Alias "CallWindowProcA" (ByVal lpPrevWndFunc As Long, ByVal hwnd As Long, ByVal msg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Const GWL_WNDPROC = (-4)
Const WM_LBUTTONDBLCLK = &H203
Const WM_LBUTTONDOWN = &H201
Const WM_LBUTTONUP = &H202
Global WndProcOld As Long

Public Function WindProc(ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
    If wMsg = WM_LBUTTONDBLCLK Then
        PostMessage hwnd, WM_LBUTTONDOWN, 0, 0
        Exit Function
    End If
    
    WindProc = CallWindowProc(WndProcOld&, hwnd&, wMsg&, wParam&, lParam&)
End Function

Sub SubClassWnd(hwnd As Long)
    WndProcOld& = SetWindowLong(hwnd, GWL_WNDPROC, AddressOf WindProc)
End Sub

Sub UnSubclassWnd(hwnd As Long)
    SetWindowLong hwnd, GWL_WNDPROC, WndProcOld&
    WndProcOld& = 0
End Sub

[hassan]

It works nicly... thanks..

Btw.. What is sub classing excactly ? it seams to be powerfull...

Where can i get good resource of sub classing ?

Thanks again megatron..

(I will add new thread for SubClassing !)

[Megatron]

Basically, subclassing allows to intercept messages. This can be useful, because VB doesn't provide even for all messages. It's also useful because you can override VB's commands. For example, you can intercept the Right-Click in a TextBox, so the context menu doesn't pop-up.