[英]Get Current Mouse-Position in GiveFeedback-Event
我必須在執行DragDrop完整控件的過程中繪制一些東西。 我從控件復制屏幕並進行繪制。 該圖像然后用作光標。
問題在於,在光標中生成的圖像需要Hospot,它取決於鼠標的位置。 但是,如何在GiveFeedback事件中獲得正確的位置? 在我使用Control.MousePosition的版本中,但是圖片來回擺動。 這里是事件代碼:
Private Sub Panel1_GiveFeedback(sender As Object, e As GiveFeedbackEventArgs) Handles Panel1.GiveFeedback
Dim Pan As Panel = sender
Dim pMouseScreen = Control.MousePosition, pMouseClient = Pan.PointToClient(pMouseScreen)
Dim RPanelClient = Pan.ClientRectangle, RPanelScreen = Pan.RectangleToScreen(RPanelClient)
Using BMP As New Bitmap(RPanelClient.Size.Width, RPanelClient.Size.Height)
Using Gr = System.Drawing.Graphics.FromImage(BMP)
Gr.CopyFromScreen(RPanelScreen.Location, Point.Empty, BMP.Size)
Gr.SmoothingMode = Drawing2D.SmoothingMode.HighQuality
Using P As New Pen(Color.Black, 5)
Dim P1 = New Point(0, pMouseClient.Y), P2 = New Point(RPanelClient.Right - 1, pMouseClient.Y)
Gr.DrawLine(P, P1, P2)
End Using
Dim Cur = Cursors.Default '
Dim Rcursor = New Rectangle(pMouseClient, Cur.Size)
Cur.Draw(Gr, Rcursor)
End Using
e.UseDefaultCursors = False
Cursor.Current = CreateCursorFromBMP(BMP, pMouseClient)
End Using
結束子
怎么做對?
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