EnableWindow & SendMessage do nothing !

berrada · 6th January 2005, 13:14

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, 13:16

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

berrada · 6th January 2005, 13:35

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

RobGrant · 6th January 2005, 13:42

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

berrada · 6th January 2005, 13:51

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

kichik · 6th January 2005, 13:53

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, 14:05

it's OK.
Thank you.

6th January 2005, 13:14	#1
berrada Junior Member Join Date: Jan 2005 Location: France - Paris Posts: 7	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

6th January 2005, 13:53	#6
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	That's because the inner window does not yet exist when the pre function is executed. Use the same code in the show function. NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

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6th January 2005, 13:16	#2
RobGrant Senior Member Join Date: Sep 2004 Location: Nottingham Posts: 263	1. Dunno, sorry. 2. SendMessage $item ${WM_SETTEXT} 0 "STR:whatever"

6th January 2005, 13:35	#3
berrada Junior Member Join Date: Jan 2005 Location: France - Paris Posts: 7	2. the error is: SendMessage:warning: unknown variable/constant "{WM_SETTEXT}" detected

6th January 2005, 13:42	#4
RobGrant Senior Member Join Date: Sep 2004 Location: Nottingham Posts: 263	Ooooh. You need to !include "WinMessages.nsh" at the top of your script.

6th January 2005, 13:51	#5
berrada Junior Member Join Date: Jan 2005 Location: France - Paris Posts: 7	ok RobGrant thank you. no error now! but, as EnableWindow (first question - 1), SendMessage makes no change on controls.

6th January 2005, 14:05	#7
berrada Junior Member Join Date: Jan 2005 Location: France - Paris Posts: 7	it's OK. Thank you.