是否有可能改变ToolStripMenuItem提示字体？ [英] Is it possible to change ToolStripMenuItem tooltip font?

问题描述

我有一个动态填充的ContextMenuStrip每个ToolStripMenuItem有一个格式化的文本提示。而且，为了让这个文本意义的用户，我必须使用等宽字体，如宋体。默认字体是有规律的，非等宽字体。 我找不到任何的getter工具提示对象，也没有一种方法来覆盖其绘制的事件，也没有一种方法来设置它的风格。

I have a dynamically filled ContextMenuStrip where each ToolStripMenuItem has a formatted text for the tooltip. And, in order for this text to make sense to the user, I must use a monospaced font, such as "Courier New". The default font is a regular, non Monospaced font. I couldn't find any getter for the ToolTip object nor a way to override its Draw event nor a way to set its style.

那么，它甚至可能改变ToolStripMenuItem的提示字体？

So, is it even possible to change ToolStripMenuItem's tooltip font?

实施CustomToolTip继承自工具提示没有解决不了的问题，这是传递新的工具提示ToolStripMenuItem。

Implementing CustomToolTip that inherits from ToolTip doesn't solve the issue, which is passing the new tooltip to ToolStripMenuItem.

推荐答案

确定，这要归功于托尼·艾布拉姆斯并威廉·安德鲁斯，该解决方案如下：

OK, thanks to Tony Abrams and William Andrus, the solution is as follows:

• 工具提示的静态实例，它初始化。

• A static instance of ToolTip which initialized.

toolTip = new ToolTip();
toolTip.OwnerDraw = true;
toolTip.Draw += new DrawToolTipEventHandler(tooltip_Draw);
toolTip.Popup += new PopupEventHandler(tooltip_Popup);    
toolTip.UseAnimation = true;
toolTip.AutoPopDelay = 500;
toolTip.AutomaticDelay = 500;

工具提示的弹出事件来设置其大小。

ToolTip's Popup event to set its size.

void tooltip_Popup(object sender, PopupEventArgs e)
{
    e.ToolTipSize = TextRenderer.MeasureText(toolTipText, new Font("Courier New", 10.0f, FontStyle.Bold));
    e.ToolTipSize = new Size(e.ToolTipSize.Width + TOOLTIP_XOFFSET, e.ToolTipSize.Height + TOOLTIP_YOFFSET);
}

工具提示的抽奖活动进行实际的绘制。

ToolTip's Draw event for actual drawing.

void tooltip_Draw(object sender, DrawToolTipEventArgs e)
{
Rectangle bounds = e.Bounds;
bounds.Offset(TOOLTIP_XOFFSET, TOOLTIP_YOFFSET);
DrawToolTipEventArgs newArgs = new DrawToolTipEventArgs(e.Graphics, e.AssociatedWindow, e.AssociatedControl, bounds, e.ToolTipText, toolTip.BackColor, toolTip.ForeColor, new Font("Courier New", 10.0f, FontStyle.Bold));
    newArgs.DrawBackground();
    newArgs.DrawBorder();
    newArgs.DrawText(TextFormatFlags.TextBoxControl);
}

ToolStripMenuItem的MouseEnter事件显示工具提示。

ToolStripMenuItem's MouseEnter event to show the tooltip.

System.Windows.Forms.ToolStripMenuItem item = (sender as System.Windows.Forms.ToolStripMenuItem);
toolTip.Show("ToolTipText", item.Owner);

ToolStripMenuItem的MouseLeave事件隐藏工具提示。

ToolStripMenuItem's MouseLeave event to hide the tooltip.

System.Windows.Forms.ToolStripMenuItem item = (sender as System.Windows.Forms.ToolStripMenuItem);
toolTip.Hide(item.Owner);

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