通过

PictureSizeMode 属性示例

  • 项目

以下示例使用 PictureSizeMode 属性演示图片的三个显示选项：按原样显示图片、在保持图片原始比例的同时更改图片的大小，以及拉伸图片以填充空间。

若要使用此示例，请将此示例代码复制到窗体的 Declarations 部分。 确保该窗体包含：

注意

此示例是 PictureAlignment 属性示例的增强版本，因为两个属性相互补充。 增强的地方是添加了三个用于控制是剪裁、缩放还是拉伸图像的 OptionButton 事件子例程。

Dim Alignments(5) As String 
 
Private Sub UserForm_Initialize() 
 Alignments(0) = "0 - Top Left" 
 Alignments(1) = "1 - Top Right" 
 Alignments(2) = "2 - Center" 
 Alignments(3) = "3 - Bottom Left" 
 Alignments(4) = "4 - Bottom Right" 
 
 'Specify a bitmap that exists on your system 
 Frame1.Picture = LoadPicture("c:\winnt2\ball.bmp") 
 
 SpinButton1.Min = 0 
 SpinButton1.Max = 4 
 SpinButton1.Value = 0 
 
 TextBox1.Text = Alignments(0) 
 Frame1.PictureAlignment = SpinButton1.Value 
 
 OptionButton1.Caption = "Crop" 
 OptionButton1.Value = True 
 OptionButton2.Caption = "Stretch" 
 OptionButton3.Caption = "Zoom" 
End Sub 
 
Private Sub OptionButton1_Click() 
 If OptionButton1.Value = True Then 
 Frame1.PictureSizeMode = fmPictureSizeModeClip 
 End If 
End Sub 
 
Private Sub OptionButton2_Click() 
 If OptionButton2.Value = True Then 
 Frame1.PictureSizeMode = fmPictureSizeModeStretch 
 End If 
End Sub 
 
Private Sub OptionButton3_Click() 
 If OptionButton3.Value = True Then 
 Frame1.PictureSizeMode = fmPictureSizeModeZoom 
 End If 
End Sub 
 
Private Sub SpinButton1_Change() 
 TextBox1.Text = Alignments(SpinButton1.Value) 
 Frame1.PictureAlignment = SpinButton1.Value 
End Sub 
 
Private Sub TextBox1_Change() 
 Select Case TextBox1.Text 
 Case "0" 
 TextBox1.Text = Alignments(0) 
 Frame1.PictureAlignment = 0 
 Case "1" 
 TextBox1.Text = Alignments(1) 
 Frame1.PictureAlignment = 1 
 Case "2" 
 TextBox1.Text = Alignments(2) 
 Frame1.PictureAlignment = 2 
 Case "3" 
 TextBox1.Text = Alignments(3) 
 Frame1.PictureAlignment = 3 
 Case "4" 
 TextBox1.Text = Alignments(4) 
 Frame1.PictureAlignment = 4 
 Case Else 
 TextBox1.Text = Alignments(SpinButton1.Value) 
 Frame1.PictureAlignment = SpinButton1.Value 
 End Select 
End Sub

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