Run Process -> Return Handle

[AUGE_OHR]

hi,

i want to run many Instance of App but i need "Control" them.
as they all have "same Name" i can´t use "FindWindow" to get Handle

so how can i "run" a Instance and get it´s Handle under harbour
attached Xbase++ Sample using OT4XB Syntax

TRunProcess.zip

(3.95 KiB) Downloaded 61 times

[AUGE_OHR]

hi

it seems that ShellExecute() return

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  HMG_retnl ((LONG_PTR) hInstance );

https://docs.microsoft.com/en-us/window ... llexecutea

If the function succeeds, it returns a value greater than 32. If the function fails, it returns an error value that indicates the cause of the failure. The return value is cast as an HINSTANCE for backward compatibility with 16-bit Windows applications. It is not a true HINSTANCE, however. It can be cast only to an INT_PTR and compared to either 32 or the following error codes below.

[AUGE_OHR]

hi

i try it this Way

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   hwnd := ShellExecute(0, "open", "Playvlc.exe", cPara,cHome ,1)
   AADD(aWin, hwnd)

it does start "Playvlc.exe" as i want but i have always 42 as hwnd ...
what do i miss ...

[AUGE_OHR]

hi,

found out that i can find "Title" even when use NOCAPTION
so i can "search" for Windows and it´s Handle after call ShellExecute()

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PROCEDURE GetVLChandle()
LOCAL cTitle, hwnd, ii, iMax, cMemo

   iMax := nRow * nCol
   FOR ii := 1 TO iMax
      cTitle := "PLAYVLC" + STRZERO( ii, 2 )
      hwnd := FindWindowEx(,,, cTitle )
      IF !EMPTY( hwnd )
         WritePlay( cTitle + ".PLAY", STR( hwnd ) )
         AADD( aWin, hwnd )
      ENDIF
   NEXT

! Note : i write a "Number" ... not a String ?!

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STATIC PROCEDURE CheckCloseScreen()
   ...
   IF lCheckScreen = .T.
      aDir := DIRECTORY( "PLAYVLC*.PLAY" )
      iMax := LEN( aDir )
      FOR ii := 1 TO iMax
         IF ".PLAY" $ aDir[ ii ] [ F_NAME ]
            nCount ++
            cMemo := ReadPlay( aDir[ ii ] [ F_NAME ] )
            AADD( aCheck, cMemo )
         ENDIF
      NEXT
      IF nCount <> nOpenVLC
         lCheckScreen = .F.
   
         iMax := LEN( aWin )
         FOR ii := 1 TO iMax
            hProcess := aWin[ ii ]
            SendMessage( hProcess, WM_CLOSE, 0, 0 )
            hb_idleSleep( .1 )
         NEXT
         Domethod( "IPTVMAIN", "PLAYTV", "SHOW" )
         SnapToCtrl("IPTVMAIN","PLAYTV")

      ENDIF
   ENDIF