Calling FindWindowEx with program WIndowClass
I'm trying to use FindWindowEx to determine whether a certain program is running or not.
FindWindow(NULL, "Mozilla Firefox");
This works fine as long as I'm on firefox's start page. A workaround I found was:
FindWindow(NULL, "MozillaWindowClass");
But that left me wondering if that was specifically crafted for firefox, but it turns that it appeareantly works for other applications:
FindWindow(NULL, "OllyDbgWindowClass");
So my question is can I just use FindWindow with an argument like "programXWindowClass" for any program? Are there any exceptions to this?
Is "programXWindowClass" guaranteed to exist?
winapi
asked Nov 13 '18 at 5:04
TreyTrey
144314
add a comment |
I'm trying to use FindWindowEx to determine whether a certain program is running or not.
FindWindow(NULL, "Mozilla Firefox");
This works fine as long as I'm on firefox's start page. A workaround I found was:
FindWindow(NULL, "MozillaWindowClass");
But that left me wondering if that was specifically crafted for firefox, but it turns that it appeareantly works for other applications:
FindWindow(NULL, "OllyDbgWindowClass");
So my question is can I just use FindWindow with an argument like "programXWindowClass" for any program? Are there any exceptions to this?
Is "programXWindowClass" guaranteed to exist?
winapi
asked Nov 13 '18 at 5:04
TreyTrey
144314
add a comment |
I'm trying to use FindWindowEx to determine whether a certain program is running or not.
FindWindow(NULL, "Mozilla Firefox");
This works fine as long as I'm on firefox's start page. A workaround I found was:
FindWindow(NULL, "MozillaWindowClass");
But that left me wondering if that was specifically crafted for firefox, but it turns that it appeareantly works for other applications:
FindWindow(NULL, "OllyDbgWindowClass");
So my question is can I just use FindWindow with an argument like "programXWindowClass" for any program? Are there any exceptions to this?
Is "programXWindowClass" guaranteed to exist?
winapi
asked Nov 13 '18 at 5:04
TreyTrey
144314
I'm trying to use FindWindowEx to determine whether a certain program is running or not.
FindWindow(NULL, "Mozilla Firefox");
This works fine as long as I'm on firefox's start page. A workaround I found was:
FindWindow(NULL, "MozillaWindowClass");
But that left me wondering if that was specifically crafted for firefox, but it turns that it appeareantly works for other applications:
FindWindow(NULL, "OllyDbgWindowClass");
So my question is can I just use FindWindow with an argument like "programXWindowClass" for any program? Are there any exceptions to this?
Is "programXWindowClass" guaranteed to exist?
winapi
winapi
asked Nov 13 '18 at 5:04
TreyTrey
144314
asked Nov 13 '18 at 5:04
TreyTrey
144314
asked Nov 13 '18 at 5:04
TreyTrey
144314
asked Nov 13 '18 at 5:04
TreyTrey
144314
asked Nov 13 '18 at 5:04
TreyTrey
144314
144314
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
There is no requirement for a caller to RegisterClassEx to follow any particular pattern, that maps a window class name to any other information (like the application name). Any caller can pick any valid window class name they like.
Keep in mind two notable consequences of this:
- A window class name need not be unique to any given application. All UWP applications use the window class "Windows.UI.Core.CoreWindow" by default, for example.
- A window class name can change across different versions of an application, or even different invocations of an application.
answered Nov 13 '18 at 5:49
IInspectableIInspectable
26.1k54396
add a comment |
Is "programXWindowClass" guaranteed to exist?
No. What you observed is merely a coincidence in naming.
answered Nov 13 '18 at 5:49
David HeffernanDavid Heffernan
518k348201213
add a comment |
Your Answer
StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53274132%2fcalling-findwindowex-with-program-windowclass%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
There is no requirement for a caller to RegisterClassEx to follow any particular pattern, that maps a window class name to any other information (like the application name). Any caller can pick any valid window class name they like.
Keep in mind two notable consequences of this:
- A window class name need not be unique to any given application. All UWP applications use the window class "Windows.UI.Core.CoreWindow" by default, for example.
- A window class name can change across different versions of an application, or even different invocations of an application.
answered Nov 13 '18 at 5:49
IInspectableIInspectable
26.1k54396
add a comment |
There is no requirement for a caller to RegisterClassEx to follow any particular pattern, that maps a window class name to any other information (like the application name). Any caller can pick any valid window class name they like.
Keep in mind two notable consequences of this:
- A window class name need not be unique to any given application. All UWP applications use the window class "Windows.UI.Core.CoreWindow" by default, for example.
- A window class name can change across different versions of an application, or even different invocations of an application.
answered Nov 13 '18 at 5:49
IInspectableIInspectable
26.1k54396
add a comment |
There is no requirement for a caller to RegisterClassEx to follow any particular pattern, that maps a window class name to any other information (like the application name). Any caller can pick any valid window class name they like.
Keep in mind two notable consequences of this:
- A window class name need not be unique to any given application. All UWP applications use the window class "Windows.UI.Core.CoreWindow" by default, for example.
- A window class name can change across different versions of an application, or even different invocations of an application.
answered Nov 13 '18 at 5:49
IInspectableIInspectable
26.1k54396
There is no requirement for a caller to RegisterClassEx to follow any particular pattern, that maps a window class name to any other information (like the application name). Any caller can pick any valid window class name they like.
Keep in mind two notable consequences of this:
- A window class name need not be unique to any given application. All UWP applications use the window class "Windows.UI.Core.CoreWindow" by default, for example.
- A window class name can change across different versions of an application, or even different invocations of an application.
answered Nov 13 '18 at 5:49
IInspectableIInspectable
26.1k54396
edited Nov 13 '18 at 5:57
answered Nov 13 '18 at 5:49
IInspectableIInspectable
26.1k54396
answered Nov 13 '18 at 5:49
IInspectableIInspectable
26.1k54396
answered Nov 13 '18 at 5:49
IInspectableIInspectable
26.1k54396
26.1k54396
add a comment |
add a comment |
Is "programXWindowClass" guaranteed to exist?
No. What you observed is merely a coincidence in naming.
answered Nov 13 '18 at 5:49
David HeffernanDavid Heffernan
518k348201213
add a comment |
Is "programXWindowClass" guaranteed to exist?
No. What you observed is merely a coincidence in naming.
answered Nov 13 '18 at 5:49
David HeffernanDavid Heffernan
518k348201213
add a comment |
Is "programXWindowClass" guaranteed to exist?
No. What you observed is merely a coincidence in naming.
answered Nov 13 '18 at 5:49
David HeffernanDavid Heffernan
518k348201213
Is "programXWindowClass" guaranteed to exist?
No. What you observed is merely a coincidence in naming.
answered Nov 13 '18 at 5:49
David HeffernanDavid Heffernan
518k348201213
answered Nov 13 '18 at 5:49
David HeffernanDavid Heffernan
518k348201213
answered Nov 13 '18 at 5:49
David HeffernanDavid Heffernan
518k348201213
answered Nov 13 '18 at 5:49
David HeffernanDavid Heffernan
518k348201213
518k348201213
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53274132%2fcalling-findwindowex-with-program-windowclass%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
