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RGB Color Fader

by: bs0d

Description:

Once you get the items in the form: 3 text boxes, the shape (can be any shape) and 3 buttons, this program should work. Be sure to name them appropriately to the code.

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Code:

Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)

Private Sub cmdClear_Click()
'Will clear the contents of the RGB numbers entered

txtRed = ""
    txtGreen = ""
    txtBlue = ""
    
    txtRed.SetFocus
    
'Will set the shape color back to default black.

shpSquare.FillColor = vbBlack
    shpSquare.Refresh
    
End Sub

Private Sub cmdExit_Click()
'Will terminate the program

Unload Me
    End
    
    
End Sub

Private Sub cmdFader_Click()

'This will flow through the Colors in the Color Pallete
'Using the ever famous, RGB Function.

For R = 0 To 255
    shpSquare.FillColor = RGB(R, Val(txtGreen), Val(txtBlue))
    shpSquare.Refresh
    Sleep 10
Next R
    For G = 0 To 255
        shpSquare.FillColor = RGB(Val(txtRed), G, Val(txtBlue))
        shpSquare.Refresh
        Sleep 10
    Next G
        For B = 0 To 255
            shpSquare.FillColor = RGB(Val(txtRed), Val(txtGreen), B)
            shpSquare.Refresh
            Sleep 10
        Next B
        
End Sub

Private Sub Form_Load()
'Will center the form on the screen

frmFader.Top = (Screen.Height - frmFader.Height) / 2
frmFader.Left = (Screen.Width - frmFader.Width) / 2
End Sub

Private Sub txtBlue_Change()
'This will make sure that the user does not enter a number
'Larger than 255 or 0, because it would not function properly.

If Val(txtBlue) > 255 Then
  intRes = MsgBox("Number cannot be larger than 255.", vbExclamation, "ALERT!!!")
    txtBlue = ""
    txtBlue.SetFocus
ElseIf Val(txtBlue) < 0 Then
    intRes = MsgBox("Number cannot be smaller than zero.", vbExclamation, "ALERT!!!")
    txtBlue = ""
    txtBlue.SetFocus
End If
End Sub

Private Sub txtGreen_Change()
'This will make sure that the user does not enter a number
'Larger than 255 or 0, because it would not function properly.

If Val(txtGreen) > 255 Then
  intRes = MsgBox("Number cannot be larger than 255.", vbExclamation, "ALERT!!!")
    txtGreen = ""
    txtGreen.SetFocus
ElseIf Val(txtGreen) < 0 Then
    intRes = MsgBox("Number cannot be smaller than zero.", vbExclamation, "ALERT!!!")
    txtGreen = ""
    txtGreen.SetFocus
End If

End Sub

Private Sub txtRed_Change()
'This will make sure that the user does not enter a number
'Larger than 255 or 0, because it would not function properly.

If Val(txtRed) > 255 Then
  intRes = MsgBox("Number cannot be larger than 255.", vbExclamation, "ALERT!!!")
    txtRed = ""
    txtRed.SetFocus
ElseIf Val(txtRed) < 0 Then
    intRes = MsgBox("Number cannot be smaller than zero.", vbExclamation, "ALERT!!!")
    txtRed = ""
    txtRed.SetFocus
End If

End Sub

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