GetSystemMetrics32(n) Question

[Guest]

I have found many articles on the web about the use of GetSystemMetrics(n)
to determine the screen resolution by using n=0 and n=1. However, running
the code:
Declare Function GetSystemMetrics32 Lib "user32" _
Alias "GetSystemMetrics" (ByVal nIndex As Long) As Long

Sub x()
Dim i As Long

For i = 1 To 300
Range("A" & i) = i - 1
Range("B" & i) = GetSystemMetrics32(i - 1)
Next i
End Sub

Seems to be giving meaningful values for n=0-84. All n>84 return 0.

I found that n=80 gives the number of monitors.

Is there a list of all meaningful values of n? (I haven't been able to
find one.)

Many thanks.

 

[Rick Rothstein]

Here is a link to a list of arguments (there are only about 38 of them) and
what they mean...

http://support.microsoft.com/kb/210603

 

[Guest]

Thanks for the reply and the list.

From experimentation, there must be many more valid arguments. For
example, as I mentioned, n=80 returns the number of monitors and that value
is not on Microsoft's list in kb/210603. I tried adding and deleting
monitors from my multiple monitor system, and n=80 always gave the current
number of monitors.

On my system, 66 values of n returned a non-zero value. Some of the zero
returns also had meaning according to kb/210603.

 

[Rick Rothstein]

A little more searching revealed this link which shows more parameter
values, but without an explanation (only somewhat cryptic parameter names as
a hint)...

http://wiki.tcl.tk/15401