VB中的图片框透明度 [英] Picture box transparency in vb

问题描述

运行代码时，即使我在属性窗口中将背景色设置为透明，图片框也具有背景色.有什么想法吗?

When i run my code, the picture box has a background colour, even though I have set the background colour to transparent in the properties window. any ideas?

推荐答案

我假设您正在将PictureBox与其他控件重叠，并且希望可以看到PictureBox.那不是它的工作原理-具有透明背景的控件仅相对于其父级是透明的，而不是其他控件.您可以通过覆盖表单的OnPaint方法来使用GDI +绘制它们:

I assume you're overlapping a PictureBox over some other control and expecting to see through the PictureBox. That's not how it works - controls with transparent backgrounds are only transparent relative to their parent, not other controls. You could draw them using GDI+ by overriding the OnPaint method of your form:

Private Shared ReadOnly SomeImage As Image = My.Resources.blah 'Get your image somewhere

Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
    Dim g As Graphics = e.Graphics

    g.DrawImage(SomeImage, xCoordinate, yCoordinate)

    'Draw as many images or text as you want.
End Sub

此外，似乎人们大多在寻找此功能来制作游戏.你在做游戏吗?在这种情况下，请在制作游戏之前学习图形.有很多很好的教程.

Also, it seems that people are mostly looking for this functionality to make a game. Are you making a game? Please learn graphics before making a game if this is the case. There are many good tutorials out there.

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