OCX development - How to draw the Focus?

[Michel Jr]

Hello,

I'm developing an OCX (a simple Command Button) and
I'm in trouble to draw the focus on it
(EnterFocus/GotFocus properties).


This is my code:

Private Sub UserControl_EnterFocus()
UserControl.ScaleMode = 3
lpRect.Top = 3
lpRect.Left = 3
lpRect.Right = (UserControl.Width \ Screen.TwipsPerPixelX) - 3
lpRect.Bottom = (UserControl.Height \ Screen.TwipsPerPixelY) - 3

DrawFocusRect UserControl.hdc, lpRect
UserControl.ScaleMode = 1
End Sub


Private Sub UserControl_ExitFocus()
UserControl.ScaleMode = 3
lpRect.Top = 3
lpRect.Left = 3
lpRect.Right = (UserControl.Width \ Screen.TwipsPerPixelX) - 3
lpRect.Bottom = (UserControl.Height \ Screen.TwipsPerPixelY) - 3

DrawFocusRect UserControl.hdc, lpRect
UserControl.ScaleMode = 1
End Sub


Does anybody can show me the correct way to draw
the Focus?

Thanks a lot...

Michel Jr.

[YoungBuck]

Hi Michel,
I sent you the actual project that shows the solution to your problem but I figured I'd post it in case anyone else is curious.

Option Explicit

Private Declare Function DrawFocusRect Lib "user32" (ByVal hdc As Long, lprect As RECT) As Long
Private Type RECT
        Left As Long
        Top As Long
        Right As Long
        Bottom As Long
End Type

Dim b_HasFocus As Boolean ' flag for paint event

Private Sub UserControl_EnterFocus()
    b_HasFocus = True ' flag paint event to display focus rect
    Call UserControl_Paint ' repaint object
End Sub

Private Sub ShowFocusRect()
Dim rctFocus As RECT
Dim ret As Long
    'get dimensions of usercontrol
      With rctFocus
        .Top = 3
        .Left = 3
        .Right = (UserControl.Width \ Screen.TwipsPerPixelX) - 3
        .Bottom = (UserControl.Height \ Screen.TwipsPerPixelY) - 3
    End With
      
    ret = DrawFocusRect(UserControl.hdc, rctFocus) ' display focus rect
      
End Sub

Private Sub UserControl_ExitFocus()
    b_HasFocus = False 'flag paint even NOT to draw focus rect
    Call UserControl.Cls ' clear graphical contents of UserControl to remove focus rect
    Call UserControl_Paint ' repaint object
End Sub

Private Sub UserControl_Initialize()
 b_HasFocus = False ' initialize focus flag to false (if control gets focus first b_hasfocus will be set to True by EnterFocus event)
End Sub

Private Sub UserControl_Paint()
    ' Anything & Everything that you draw on a usercontrol at runtime has to be in the paint event _
        or it will not show up on the screen
      If b_HasFocus = True Then ' if the control has focus
        Call ShowFocusRect ' paint it!
    End If
End Sub