berrada
6th January 2005 14:14 UTC

EnableWindow & SendMessage do nothing !
have you some idea, thank you...

in the code below, the following calls don't work:
1. EnableWindow $item 0
--> do nothing
2. SendMessage $item {WM_SETTEXT} "..."
--> generate the error

Page directory preFunctionDirectory
Var hwnd
Var item
Function preFunctionDirectory
; [Get HWND current page of installation]
FindWindow $hwnd "#32770" "" $HWNDPARENT
; [Disable Directory field]
GetDlgItem $item $hwnd 1019 ; IDC_DIR
EnableWindow $item 0
SendMessage $item {WM_SETTEXT} "C:\SignallingServer\One"
; [Disable Directory GroupBox]
GetDlgItem $item $hwnd 1020 ; IDC_SELDIRTEXT
EnableWindow $item 0
; [Disable Browse... button]
GetDlgItem $item $hwnd 1001 ; IDC_BROWSE
EnableWindow $item 0
; [Disable label]
GetDlgItem $item $hwnd 1006 ; IDC_INTROTEXT
EnableWindow $item 0
FunctionEnd

RobGrant
6th January 2005 14:16 UTC

1. Dunno, sorry.
2. SendMessage $item ${WM_SETTEXT} 0 "STR:whatever"

berrada
6th January 2005 14:35 UTC

2.
the error is:
SendMessage:warning: unknown variable/constant "{WM_SETTEXT}" detected

RobGrant
6th January 2005 14:42 UTC

Ooooh. You need to !include "WinMessages.nsh" at the top of your script.

berrada
6th January 2005 14:51 UTC

ok RobGrant thank you.
no error now!
but, as EnableWindow (first question - 1), SendMessage makes no change on controls.

kichik
6th January 2005 14:53 UTC

That's because the inner window does not yet exist when the pre function is executed. Use the same code in the show function.

berrada
6th January 2005 15:05 UTC

it's OK.
Thank you.