how do I generate a mouse click

[johnsquared2]

There has to be an easy way to do this. I am writtung an app that aftere the user enters some data another application (that I did not write) need to have a popup windows clicked to close.

I know how to move the mouse to the proper location using SetCursorPos() but can not generate a mouse cllick that the other application sees.

Is there a mouse buffer like the keyboards that I can send it too?

any help is appreciated!

J

[Vlatko]

'Before you start this program, I suggest you save everything that wasn't saved yet.
Private Declare Sub mouse_event Lib "user32" (ByVal dwFlags As Long, ByVal dx As Long, ByVal dy As Long, ByVal cButtons As Long, ByVal dwExtraInfo As Long)
Const MOUSEEVENTF_LEFTDOWN = &H2
Const MOUSEEVENTF_LEFTUP = &H4
Const MOUSEEVENTF_MIDDLEDOWN = &H20
Const MOUSEEVENTF_MIDDLEUP = &H40
Const MOUSEEVENTF_MOVE = &H1
Const MOUSEEVENTF_ABSOLUTE = &H8000
Const MOUSEEVENTF_RIGHTDOWN = &H8
Const MOUSEEVENTF_RIGHTUP = &H10
Private Sub Form_Activate()
Do
        'Simulate a mouseclick on the cursor's position
        mouse_event MOUSEEVENTF_LEFTDOWN Or MOUSEEVENTF_LEFTUP, 0&, 0&, cButt, dwEI
        DoEvents
    Loop
End Sub

[Vlatko]

Or Send the WM_LBUTTONDOWN and WM_LBUTTONUP messages:

WM_LBUTTONDOWN
The WM_LBUTTONDOWN message is posted when the user presses the left mouse button while the cursor is in the client area of a window. If the mouse is not captured, the message is posted to the window beneath the cursor. Otherwise, the message is posted to the window that has captured the mouse. 

WM_LBUTTONDOWN 
fwKeys = wParam;        // key flags 
xPos = LOWORD(lParam);  // horizontal position of cursor 
yPos = HIWORD(lParam);  // vertical position of cursor 
 
Parameters
fwKeys 
Value of wParam. Indicates whether various virtual keys are down. This parameter can be any combination of the following values: Value Description 
MK_CONTROL Set if the ctrl key is down. 
MK_LBUTTON Set if the left mouse button is down. 
MK_MBUTTON Set if the middle mouse button is down. 
MK_RBUTTON Set if the right mouse button is down. 
MK_SHIFT Set if the shift key is down. 


xPos 
Value of the low-order word of lParam. Specifies the x-coordinate of the cursor. The coordinate is relative to the upper-left corner of the client area. 
yPos 
Value of the high-order word of lParam. Specifies the y-coordinate of the cursor. The coordinate is relative to the upper-left corner of the client area. 
Return Values
If an application processes this message, it should return zero.

[Megatron]

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 Const WM_LBUTTONDOWN = &H201
Private Const WM_LBUTTONUP = &H202

'Usage:
PostMessage hwnd_of_window, WM_LBUTTONDOWN, 1, 0
PostMessage hwnd_of_window, WM_LBUTTONUP, 1, 0