VGUI Tooltip

A tooltip is a vgui2 element defined in the vgui_controls library, in the file Tooltip.cpp.

SetText

Calling Tooltip::SetText on a tooltip when a tooltip window is visible changes the text for the visible tooltip window. Make sure that you check to make sure no tooltip windows are currently open before calling Tooltip::SetText.

void Tooltip::SetText(const char *text)
{
	_isDirty = true;

	if (!text)
	{
		text = "";
	}

	if (m_Text.Size() > 0)
	{
		m_Text.RemoveAll();
	}

	for (unsigned int i = 0; i < strlen(text); i++)
	{
		m_Text.AddToTail(text[i]);
	}
	m_Text.AddToTail('\0');
	
	if (s_TooltipWindow.Get())
	{
		s_TooltipWindow->SetText(m_Text.Base());
	}
}

The code above was taken from line 89 of tooltip.cpp.

Valve uses a static handler for the current displayed tooltip window (declared on line 28 of tooltip.cpp), static vgui::DHANDLE< TextEntry > s_TooltipWindow;.

I'm not sure why, but as you can see in the code above, towards the end of the function Tooltip::SetText, it changes the text of the active tooltip window. Valve needs to remove this from their code to fix this bug.

Screenshots

It seems that while the tooltip window is visible, the concommand screenshot does not work.