更改winform ToolTip backcolor

时间:2012-10-20 17:08:56

标签: c# winforms tooltip

我在项目中使用ToolTip控件。我想把它的背景颜色设置为红色。我已将ownerdraw属性更改为true,将backcolor更改为红色。但没有结果。有什么建议吗?

此致 skpaul。

3 个答案:

答案 0 :(得分:17)

设置这些属性:

yourTooltip.OwnerDraw = true; 
yourTooltip.BackColor = System.Drawing.Color.Red;

然后在Draw事件中使用:

private void yourTooltip_Draw(object sender, DrawToolTipEventArgs e)
{
    e.DrawBackground();
    e.DrawBorder();
    e.DrawText();
}

答案 1 :(得分:7)

将事件添加到工具栏并将OwnerDraw设置为true:

public Form1() {
     InitializeComponent();
     toolTip1.OwnerDraw = true;
     toolTip1.Draw += new DrawToolTipEventHandler(toolTip1_Draw);          
 }

然后为Draw Event添加一个方法:

void toolTip1_Draw(object sender, DrawToolTipEventArgs e) {
     Font f = new Font("Arial", 10.0f);
     toolTip1.BackColor = System.Drawing.Color.Red;
     e.DrawBackground();
     e.DrawBorder();
     e.Graphics.DrawString(e.ToolTipText, f, Brushes.Black, new PointF(2, 2));
 }

答案 2 :(得分:1)

当您将Control设置为OwnerDraw时,您必须自己处理控件的绘制。

这是一个快速而肮脏的例子(适应你的口味):

Private Sub ToolTip1_Draw(sender As Object, e As DrawToolTipEventArgs) Handles ToolTip1.Draw
    Dim tt As ToolTip = CType(sender, ToolTip)
    Dim b As Brush = New SolidBrush(tt.BackColor)

    e.Graphics.FillRectangle(b, e.Bounds)

    Dim sf As StringFormat = New StringFormat
    sf.Alignment = StringAlignment.Center
    sf.LineAlignment = StringAlignment.Center
    e.Graphics.DrawString(e.ToolTipText, SystemFonts.DefaultFont, SystemBrushes.ActiveCaptionText, e.Bounds, sf)

    sf.Dispose()
    b.Dispose()
End Sub

干杯