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ScreenMode Class

  + Object
    + ScreenMode

Description

The ScreenMode class implements properties that characterize a graphic mode and methods to list the available graphic modes. This class is instantiable, derivable and cloneable.

There are two ways to use this object. The first is to use the ScreenMode or DefaultScreenMode global properties in read-only mode to obtain an instance of this class and then to access the Color and BitDepth properties to find out the graphics mode attributes. The example below illustrates this approach:

Private Sub Button1_Click()
  Dim sc As ScreenMode

  Set sc = ScreenMode
  MsgBox "Number of colors : " & CLng(2^sc.BitDepth)
End Sub

The second way is to instantiate this class, modify the values of the Color and BitDepth properties directly or indirectly using the FindFirstMode and FindNextMode methods, then affect the object obtained to the ScreenMode global property to modify the current graphic mode. The example below illustrates this approach:

Private Sub Button1_Click()
  Dim sc As New ScreenMode

  sc.FindFirstMode
  Set ScreenMode = sc
End Sub

Note that the ScreenMode object only describes the attributes of a graphic mode. The current graphic mode of the handheld device is not modified as long as you do not access the ScreenMode in write mode.

Members

System requirements