Really strange ToolStripButton event problem
I am making a CustomControl based on a ToolStripButton control, I am trying to know when the mouse is Hover the button to draw it differently. Here is a quick view of my code :
private bool m_IsHover = false;
...
protected override void OnMouseEnter(EventArgs e)
{
m_IsHover = true;
Debug.WriteLine("Mouse IN");
base.OnMouseEnter(e);
}
protected override void OnMouseLeave(EventArgs e)
{
m_IsHover = false;
Debug.WriteLine("Mouse OUT");
base.OnMouseLeave(e);
}
...
protected override void OnPaint(PaintEventArgs e)
{
// Define rectangle used to draw
Rectangle borderRec = new Rectangle(0, 0, this.Width - 1, this.Height - 1);
if (m_IsHover)
{
// Draw border
e.Graphics.DrawRectangle(m_BorderPen, borderRec);
...
}
else
{
// Default draw
base.OnPaint(e);
}
}
M开发者_运维知识库y problem is that I clearly see in the debug panel that Mouse IN and Mouse OUT are right, so variable should be correctly set, but in the OnPaint event, I never enter in the m_IsHover conditionnal ...
I really don't understand what the problem is, it seem so easy ...
The ToolStripItem.Select() method runs on MouseEnter. Call this.Invalidate() to force a repaint.
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