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vb中图片框透明度

发布于 2025-01-07 01:10:09 字数 53 浏览 4 评论 0原文

当我运行代码时，图片框具有背景颜色，即使我已在属性窗口中将背景颜色设置为透明。有什么想法吗？

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樱花坊 2025-01-14 01:10:09

我假设您将 PictureBox 重叠在其他一些控件上，并希望看透 PictureBox。这不是它的工作原理 - 具有透明背景的控件仅相对于其父控件是透明的，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：

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，似乎人们主要是在寻找此功能来制作游戏。你在做游戏吗？如果是这种情况，请在制作游戏之前学习图形。那里有很多很好的教程。

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

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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