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我試圖對多個圖片框執行相同的操作,但下面的代碼的第一行正在生成這個錯誤:無法強制類型'System.Windows.Forms.Button'類型的對象類型'System.Windows.Forms.PictureBox'
Unable to cast object of type System.Windows.Forms.Button to type System.Windows.Forms.PictureBox
所以我想知道是否有人可以幫助。提前致謝。
For Each pb As PictureBox In Me.Controls
Dim bp As New Bitmap(pb.Image)
pb.Region = GetRegion(bp, Color.FromArgb(255, 255, 0, 255))
pb.Image = Nothing
pb.BackColor = Color.FromArgb(100, Color.Yellow)
Next