protected override void WndProc(ref Message message)
{
base.WndProc(ref message);
switch (message.Msg)
{
case NativeMethods.WM_COMMAND + NativeMethods.WM_REFLECT:
int index = (int)message.WParam & 0xFFFF;
this.PerformClick(this.items[index]);
base.WndProc(ref message);
this.ResetMouseEventArgs();
break;
case NativeMethods.WM_MENUCHAR:
this.WmMenuChar(ref message);
break;
case NativeMethods.WM_NOTIFY:
case NativeMethods.WM_NOTIFY + NativeMethods.WM_REFLECT:
NativeMethods.NMHDR note = (NativeMethods.NMHDR)message.GetLParam(typeof(NativeMethods.NMHDR));
switch (note.code)
{
case NativeMethods.TTN_NEEDTEXTA:
NotifyNeedTextA(ref message);
break;
case NativeMethods.TTN_NEEDTEXTW:
NotifyNeedTextW(ref message);
break;
case NativeMethods.TBN_QUERYINSERT:
message.Result = (IntPtr)1;
break;
case NativeMethods.TBN_DROPDOWN:
this.NotifyDropDown(ref message);
break;
case NativeMethods.NM_CUSTOMDRAW:
this.NotifyCustomDraw(ref message);
break;
case NativeMethods.TBN_HOTITEMCHANGE:
break;
}
break;
}
}
protected override void WndProc(ref Message m)
{
switch ((uint)m.Msg)
{
case 0x2000 | NativeMethods.WM_NOTIFY:
//Reflected WM_NOTIFY from parent. Check that the handle is ours
if (m.HWnd == Handle)
{
//Then check the code of the message
NativeMethods.NMHDR nmHdr = (NativeMethods.NMHDR)
m.GetLParam(typeof(NativeMethods.NMHDR));
//Handle only BCN_DROPDOWN messages
if (nmHdr.code == NativeMethods.BCN_DROPDOWN)
{
//The dropdown portion of the button is being pressed, show the menu
if (ContextMenuStrip != null)
{
Point point = new Point(Width - ContextMenuStrip.Width, Height);
ContextMenuStrip.Show(this, point, ToolStripDropDownDirection.BelowRight);
ContextMenuStrip.Closed += OnMenuClosed;
}
}
}
break;
case NativeMethods.WM_PAINT:
//Paint the control to have the dropdown portion as pressed when the
//menu is shown.
DropDownState = ContextMenuStrip != null && ContextMenuStrip.Visible;
break;
case NativeMethods.WM_CONTEXTMENU:
//Swallow all context menu clicks on Vista and later -- otherwise
//we will also show the context menu when the user right-clicks
//the button.
if (!IsSupportedOnCurrentPlatform)
{
return;
}
break;
}
base.WndProc(ref m);
}
protected override void WndProc(ref Message message)
{
base.WndProc(ref message);
switch (message.Msg)
{
case NativeMethods.WM_NOTIFY:
case NativeMethods.WM_NOTIFY + NativeMethods.WM_REFLECT:
{
NativeMethods.NMHDR note = (NativeMethods.NMHDR)message.GetLParam(typeof(NativeMethods.NMHDR));
switch (note.code)
{
case NativeMethods.RBN_HEIGHTCHANGE:
this.UpdateSize();
break;
case NativeMethods.RBN_CHEVRONPUSHED:
this.NotifyChevronPushed(ref message);
break;
}
}
break;
}
}