SendMessage and ahk_pid

[programlearner]

Hi
I'm trying to use GT Text as an OCR screen-reader.
I downloaded it from here:
http://www.softocr.com/

In the same file - I've added a script that works when I use WinTitle as text:

Code: Select all

SendMessage, 0x111, 33031, 0, , New - GT Text

But not when I use WinTitle as ahk_pid:

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SendMessage, 0x111, 33031, 0, , ahk_pid %GTAppPID%

There's a lot more I want to do, but can't move on until this is working.

Could someone please explain why?

This works:

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#SingleInstance force
#Persistent
SetBatchLines -1
#NoEnv
SetWorkingDir %A_ScriptDir%
DetectHiddenWindows On 
SetTitleMatchMode, 2
clipboard =
;ahk_class Afx:00400000:b:00010003:00000006:007D04BF

Run, GT.exe, %A_ScriptDir%, Hide, GTAppPID
;Hide doesn't work - can't work out why
WinWait, New - GT Text
WinHide, New - GT Text

Sleep, 100
;Click capture from screen button - and wait for response
SendMessage, 0x111, 33031, 0, , New - GT Text
ClipWait, 60

;Close the application
PostMessage, 0x112, 0xF060,,, New - GT Text
ExitApp

This Does not work:

Code: Select all

#SingleInstance force
#Persistent
SetBatchLines -1
#NoEnv
SetWorkingDir %A_ScriptDir%
DetectHiddenWindows On 
SetTitleMatchMode, 2
clipboard =
;ahk_class Afx:00400000:b:00010003:00000006:007D04BF

Run, GT.exe, %A_ScriptDir%, Hide, GTAppPID
;Hide doesn't work - can't work out why
WinWait, ahk_pid %GTAppPID%
WinHide, ahk_pid %GTAppPID%

Sleep, 100
;Click capture from screen button - and wait for response
SendMessage, 0x111, 33031, 0, , ahk_pid %GTAppPID%
ClipWait, 60

;Close the application
PostMessage, 0x112, 0xF060,,, ahk_pid %GTAppPID%
ExitApp

As always - thanks for the help...I'm loving AHK

[guest3456]

bump

can you use SendMessage with a process-id? or does it have to be a hwnd?

lexikos gives some info here:
http://autohotkey.com/board/topic/46251-onmessage-0x4a-is-ignored-when-a-tooltip-is-displayed/?p=287950