using Win32 Constants

[Jarod_24]

I've managed find out how to start using the Win32 API's

But some of these methods got constants that you should use when caling
them. for example
the LockSetForegroundWindow got a unsigned integer as a parameter that
either can be the value of "LSFW_LOCK" or "LSFW_UNLOCK"
How do i get hold of these constants?

Is there some <DllImport-thing that i can use to get hold of these
constants?
and what should i use instead of "UInt32" (wich VB.net dosent support) when
using the API's

http://msdn.microsoft.com/library/d.../Windows/WindowReference/WindowFunctions/Lock
SetForegroundWindow.asp

 

[Herfried K. Wagner [MVP]]

But some of these methods got constants that you should use when caling
them. for example
the LockSetForegroundWindow got a unsigned integer as a parameter that
either can be the value of "LSFW_LOCK" or "LSFW_UNLOCK"
How do i get hold of these constants?

Is there some <DllImport-thing that i can use to get hold of these
constants?
No.

and what should i use instead of "UInt32" (wich VB.net dosent support) when
using the API's

'UInt32' is available in VB.NET too.

 

[One Handed Man [ OHM# ]]

Nice link.

Regards - OHM

'UInt32' is available in VB.NET too.

 

[Herfried K. Wagner [MVP]]

Nice link. [...]

<http://www.activevb.de/rubriken/apiviewer/index-apiviewereng.html>

Notice that the .NET support is /very/ "buggy".

 

[Jay B. Harlow [MVP - Outlook]]

Jarod_24,
In addition to the other comments.

I normally define constants such as "LSFW_LOCK" or "LSFW_UNLOCK" as part of
an enum, which then provides intellisense to the API itself.

Something like (untested):

Enum LockCode As Integer
Lock = 1
Unlock = 2
End Enum

Declare Auto Function LockSetForegroundWindow Lib "user32" (ByVal
lockCode As LockCode) As Boolean

As Herfried stated you can use UInt32 in the api declaration itself, however
I normally use an enum of the same size (32bit).

How do i get hold of these constants?

Of course finding the values for the Enum is the "challange". ;-) I normally
look at the C++ include files as I can read C/C++, For VS.NET 2003 the
include files are found in:

\Program Files\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include

Otherwise you can use a tool such as the one Herfried identified.

Hope this helps
Jay