>Below is ClickDlgButton method from my class. It should get you started.
>

>#define GW_HWNDFIRST        0
>#define GW_HWNDLAST         1
>#define GW_HWNDNEXT         2
>#define GW_HWNDPREV         3
>#define GW_OWNER            4
>#define GW_CHILD            5
>
>#define GWL_EXSTYLE 		-20
>#define GWL_STYLE 			-16
>
>#define WS_EX_APPWINDOW  	0x00040000
>
>#define WS_VISIBLE 			0x10000000
>#define WS_POPUP   			0x80000000
>
>#define WM_SETTEXT          0x000C
>#define WM_GETTEXT          0x000D
>
>#define BM_CLICK            0x00F5
>
>	PROCEDURE ClickDlgButton(tvWind, tcButton)
>	LOCAL lhWndDialog, lhWnd, lcText, lnLen, lcBuff, llClicked
>
>	IF VARTYPE(tvWind) = "N"
>		lhWndDialog = tvWind
>	ELSE
>		lhWndDialog = FindWindow(0, tvWind)
>	ENDIF
>
>	IF lhWndDialog = 0
>		RETURN .F.
>	ENDIF
>
>	* Loop through controls until find the button
>
>	lhWnd = GetWindow(lhWndDialog, GW_CHILD)
>
>	llClicked = .F.
>
>	DO WHILE lhWnd > 0
>		lcBuff = SPACE(512)
>		lnLen = SendMessage(lhWnd, WM_GETTEXT, 512, @lcBuff)
>		lcText = LEFT(lcBuff, lnLen)
>		IF UPPER(CHRTRAN(lcText, "&", "")) == UPPER(tcButton)
>			= SetForegroundWindow(lhWndDialog)
>			= SendMessage(lhWnd, BM_CLICK, 0, 0)
>			llClicked = .T.
>			EXIT
>		ENDIF
>
>		lhWnd = GetWindow(lhWnd, GW_HWNDNEXT )
>	ENDDO
>
>	RETURN llClicked
>
>

>>I was trying to use FindWindowEx to get a handle to a button and then SendMessage to click on it but could not get it working. If that is corect approach could you help with that?
>>
>>Thanks

Thanks a lot for help, looks like it's working.
What you say it's not reliable, what do you mean?