Lazarus
Home
Help
TinyPortal
Search
Login
Register
Lazarus
»
Forum
»
Programming
»
Operating Systems
»
Windows
»
Problem with registry key
Free Pascal
Website
Downloads
Wiki
Documentation
Bugtracker
Mailing List
Lazarus
Website
Downloads (Laz+FPC)
Packages (OPM)
FAQ
Wiki
Documentation (RTL/FCL/LCL)
Bugtracker
CCR Bugs
IRC channel
GIT
Mailing List
Other languages
Foundation
Website
Useful Wiki Links
Project Roadmap
Getting the Source
Screenshots
How to use the forum
About donations (wiki)
Bookstore
Computer Math and Games in Pascal
(preview)
Lazarus Handbook
Search
Advanced search
Recent
InstallAware Using Lazaru...
by
marcov
[
Today
at 04:46:46 pm]
Who is Indy mattias?
by
paweld
[
Today
at 04:17:53 pm]
[solved] how to get class...
by
Joanna
[
Today
at 03:53:05 pm]
I just released a commerc...
by
BrassGear
[
Today
at 03:17:28 pm]
Does anyone know why thes...
by
Laksen
[
Today
at 03:04:14 pm]
Database standards OR Am ...
by
gidesa
[
Today
at 02:37:56 pm]
How to: create DLL file f...
by
TRon
[
Today
at 02:26:53 pm]
A fairly simple sound sol...
by
paweld
[
Today
at 01:46:11 pm]
Demoscene The Champs Crac...
by
KodeZwerg
[
Today
at 01:45:18 pm]
Access violation when ope...
by
Чебурашка
[
Today
at 12:27:34 pm]
Step-into the field sette...
by
Martin_fr
[
Today
at 11:31:48 am]
Access violation when re-...
by
Chris Osborne
[
Today
at 11:31:25 am]
AI, NLP and CAI: Text Gen...
by
Dzandaa
[
Today
at 11:03:26 am]
dwindows for Android
by
PierceNg
[
Today
at 10:54:44 am]
create system unit from s...
by
Laksen
[
Today
at 10:53:57 am]
[Solved] Find child contr...
by
Joanna
[
Today
at 09:53:43 am]
FpDebug unexpected Assemb...
by
Marc
[
Today
at 08:46:38 am]
Offical launch of the 1 B...
by
Handoko
[
Today
at 07:59:07 am]
Big Numbers Math
by
iLya2IK
[
Today
at 07:13:20 am]
Lazarus for Windows on aa...
by
dbannon
[
Today
at 07:02:55 am]
BUG REPORT: Unable to gen...
by
dbannon
[
Today
at 06:29:49 am]
what to do if my target M...
by
Laksen
[
Today
at 12:49:12 am]
For-in loop over constant...
by
ASerge
[
Today
at 12:36:09 am]
Converting a string/index...
by
TRon
[April 18, 2024, 11:56:37 pm]
exclude ALL packages from...
by
PascalDragon
[April 18, 2024, 11:33:29 pm]
« previous
next »
Print
Pages: [
1
]
Author
Topic: Problem with registry key (Read 2161 times)
Roman
New Member
Posts: 24
Problem with registry key
«
on:
November 12, 2019, 03:16:11 pm »
I would like to control with Lazarus the screen resolution. I tried this code:
Code: Pascal
[Select]
[+]
[-]
reg
:
=
Tregistry
.
Create
(
KEY_READ
)
;
reg
.
RootKey
:
=
HKEY_LOCAL_MACHINE
;
reg
.
OpenKeyReadOnly
(
key
)
;
If the key is
Code: Pascal
[Select]
[+]
[-]
SYSTEM\CurrentControlSet\Control\GraphicsDrivers
the key is opened successfully and key names and key values are obtained correctly. But if I try the key
Code: Pascal
[Select]
[+]
[-]
SYSTEM\CurrentControlSet\Control\GraphicsDrivers\Configuration
(only 'Configuration' added) the OpenKeyReadOnly returns false. Putting backslash before 'SYSTEM' doesn’t help. What am I doing wrong? (W10, Lazarus 2.0.6)
«
Last Edit: November 12, 2019, 03:19:19 pm by Roman
»
Logged
Remy Lebeau
Hero Member
Posts: 1314
Re: Problem with registry key
«
Reply #1 on:
November 12, 2019, 06:47:59 pm »
TRegistry
has
LastError
and
LastErrorMsg
properties. What do they report when
OpenKeyReadOnly()
returns false? Chances are, either the key really does not exist, or you simply don't have permission to access it.
«
Last Edit: November 13, 2019, 01:44:04 am by Remy Lebeau
»
Logged
Remy Lebeau
Lebeau Software
- Owner, Developer
Internet Direct (Indy)
- Admin, Developer (
Support forum
)
Roman
New Member
Posts: 24
Re: Problem with registry key
«
Reply #2 on:
November 12, 2019, 09:05:37 pm »
You are right, 5 - Access is denied. Running as administrator solves problem. Thank you.
Logged
Print
Pages: [
1
]
« previous
next »
Lazarus
»
Forum
»
Programming
»
Operating Systems
»
Windows
»
Problem with registry key
TinyPortal
© 2005-2018