' VBMEM v3.2 by Charles K. Snider 02/94
' Send any and all comments to Compuserve 73730,1315

DefInt A-Z
Declare Function GetFreeSpace Lib "Kernel" (ByVal wFlags) As Long
Declare Function GetFreeSystemResources% Lib "User" (ByVal wType%)
Declare Function GetWinFlags Lib "Kernel" () As Long
Const WF_ENHANCED = &H20
Dim FreeMem As String
Dim FreeRes As String

Sub Form_Load ()
    Dim WinFlags As Long
    Dim Mode As String
    ' Center window
    Move (Screen.Width - Width) \ 2, (Screen.Height - Height) \ 2
    ' Get current Windows configuration
    WinFlags = GetWinFlags()
    If WinFlags And WF_ENHANCED Then
        Mode = "386 Enhanced Mode"
    Else
        Mode = "Standard Mode"
    End If
    ' Get info for initial and display it
    Lbl_Mde.Caption = Mode
    Lbl_Res.Caption = Format$(GetFreeSystemResources%(0) / 100, "00%")
    Lbl_Mem.Caption = Format$(GetFreeSpace(0) \ 1024, "##,#00") + " KB"
End Sub

Sub Form_Resize ()
    ' Initial check if the application is minimized.
    ' If so, display free memory in caption
    NL$ = Chr$(13) + Chr$(10)
    If Frm_Info.WindowState = 1 Then
        FreeMem = Format$(GetFreeSpace(0) \ 1024, "##,#00") + " KB Free"
        FreeRes = Format$(GetFreeSystemResources%(0) / 100, "00%") + " Left"
        If FreeMem + NL$ + FreeRes <> Frm_Info.Caption Then Frm_Info.Caption = FreeMem + NL$ + FreeRes
    Else
        Frm_Info.Caption = "System Info"
    End If
End Sub

Sub Pic_Pc_Click ()
    ' Display About Box
    NL$ = Chr$(13) + Chr$(10)
    Msg$ = "by Charles K. Snider" + NL$ + "CIS 73730,1315"
    MsgBox Msg$, 64, "VBMEM v3.2"
End Sub

Sub Tmr_Mem_Timer ()
    ' Carriage return and new line
    NL$ = Chr$(13) + Chr$(10)
    ' Get free memory and resources
    FreeMem = Format$(GetFreeSpace(0) \ 1024, "##,#00") + " KB"
    FreeRes = Format$(GetFreeSystemResources%(0) / 100, "00%")
    ' Check if the application is minimized
    ' If so, display free memory in caption
    ' Display changes only if memory changed
    If Frm_Info.WindowState = 1 Then
        FreeMem = Format$(GetFreeSpace(0) \ 1024, "##,#00") + " KB Free"
        FreeRes = Format$(GetFreeSystemResources%(0) / 100, "00%") + " Left"
        If FreeMem + NL$ + FreeRes <> Frm_Info.Caption Then Frm_Info.Caption = FreeMem + NL$ + FreeRes
    Else
        Frm_Info.Caption = "System Info"
        If FreeRes <> Lbl_Res.Caption Then Lbl_Res.Caption = FreeRes
        If FreeMem <> Lbl_Mem.Caption Then Lbl_Mem.Caption = FreeMem
    End If
End Sub