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
26k54395
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
516k348151207
add a comment |
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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
26k54395
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
26k54395
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
26k54395
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
26k54395
edited Nov 13 '18 at 5:57
answered Nov 13 '18 at 5:49
IInspectableIInspectable
26k54395
answered Nov 13 '18 at 5:49
IInspectableIInspectable
26k54395
answered Nov 13 '18 at 5:49
IInspectableIInspectable
26k54395
26k54395
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
516k348151207
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
516k348151207
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
516k348151207
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
516k348151207
answered Nov 13 '18 at 5:49
David HeffernanDavid Heffernan
516k348151207
answered Nov 13 '18 at 5:49
David HeffernanDavid Heffernan
516k348151207
answered Nov 13 '18 at 5:49
David HeffernanDavid Heffernan
516k348151207
516k348151207
add a comment |
add a comment |
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