VB.Net背景渐变使用LinearGradientBrush并显示Image

Question

我尝试使用渐变背景颜色绘制一个表单,并将图像与透明度重叠.

这个有可能？

我想使用具有透明背景的平铺背景图像,并使用自定义线性渐变绘制背景.

Answer 1

我做到了!,我希望与你分享我的解决方案(这很简单):

外部帮助:使用图像平铺形状

Private Sub BackgroundGradient(ByRef Control As Object, _
                                ByVal Color1 As Drawing.Color, _
                                ByVal Color2 As Drawing.Color)

    Dim vLinearGradient As Drawing.Drawing2D.LinearGradientBrush = _
        New Drawing.Drawing2D.LinearGradientBrush(New Drawing.Point(Control.Width, Control.Height), _
                                                    New Drawing.Point(Control.Width, 0), _
                                                    Color1, _
                                                    Color2)

    Dim vGraphic As Drawing.Graphics = Control.CreateGraphics
    ' To tile the image background - Using the same image background of the image
    Dim vTexture As New Drawing.TextureBrush(Control.BackgroundImage)

    vGraphic.FillRectangle(vLinearGradient, Control.DisplayRectangle)
    vGraphic.FillRectangle(vTexture, Control.DisplayRectangle)

    vGraphic.Dispose() : vGraphic = Nothing : vTexture.Dispose() : vTexture = Nothing
End Sub