IXRScrollBar::SetViewportSize (Compact 2013)
3/28/2014
This method sets how much of the scrollable content is currently visible.
Syntax
virtual HRESULT STDMETHODCALLTYPE SetViewportSize(
__in float ViewportSize
) = 0;
Parameters
- ViewportSize
A float value that indicates how much of the scrollable content will be visible.
Return Value
Returns an HRESULT that indicates success or failure.
Remarks
The units that are used for ViewportSize are the same units that are used to describe the length of the content. Some examples include lines of text, or pages of text.
The value in ViewportSize is used to calculate the size of the IXRThumb control that is displayed as the sliding value indicator in an IXRScrollBar control. The IXRThumb control has a minimum size that is defined by the operating system. The size of an IXRThumb control becomes larger as more content is visible. For example, if 25 percent of a thumb-control's content is visible, the control occupies 25 percent of the track in which it moves.
.NET Framework Equivalent
System.Windows.Controls.Primitives.ScrollBar.ViewportSize
Requirements
Header |
XamlRuntime.h |
sysgen |
SYSGEN_XAML_RUNTIME |