ecommerce web developer development freelance website designer India
Public Sub InvisibleForm(Frm As Form)
'Make a form invisible
On Error GoTo error
Dim rctClient As RECT, rctFrame As RECT
Dim hClient As Long, hFrame As Long
GetWindowRect Frm.hWnd, rctFrame
GetClientRect Frm.hWnd, rctClient
Dim lpTL As POINTAPI, lpBR As POINTAPI
lpTL.X = rctFrame.Left
lpTL.Y = rctFrame.Top
lpBR.X = rctFrame.Right
lpBR.Y = rctFrame.Bottom
ScreenToClient Frm.hWnd, lpTL
ScreenToClient Frm.hWnd, lpBR
rctFrame.Left = lpTL.X
rctFrame.Top = lpTL.Y
rctFrame.Right = lpBR.X
rctFrame.Bottom = lpBR.Y
rctClient.Left = Abs(rctFrame.Left)
rctClient.Top = Abs(rctFrame.Top)
rctClient.Right = rctClient.Right + Abs(rctFrame.Left)
rctClient.Bottom = rctClient.Bottom + Abs(rctFrame.Top)
rctFrame.Right = rctFrame.Right + Abs(rctFrame.Left)
rctFrame.Bottom = rctFrame.Bottom + Abs(rctFrame.Top)
rctFrame.Top = 0
rctFrame.Left = 0
hClient = CreateRectRgn(rctClient.Left, rctClient.Top, rctClient.Right, rctClient.Bottom)
hFrame = CreateRectRgn(rctFrame.Left, rctFrame.Top, rctFrame.Right, rctFrame.Bottom)
CombineRgn hFrame, hClient, hFrame, RGN_XOR
SetWindowRgn Frm.hWnd, hFrame, True
Exit Sub
error: MsgBox Err.Description, vbExclamation, "Error"
End Sub
 Make a form invisible

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