There is a known issue related to using WPFBrowserView (heavyweight rendering mode) in Windows 7 environment with touch screen. Sometimes some touch events are not dispatched properly in DotNetBrowser, and touching a hyperlink may not work at all.
This is not reproducible for Windows 8 and newer environments.
Cause:
The issue is related to the specific implementation of touch events on Windows 7.
The WPF application consumes WM_TOUCH events, and they are simply not passed to the native side. This is reproducible because of Z-order, and the issue is gone if the WPF touch events are disabled.
The issue is not reproducible in newer environments because of differences in the native touch implementation.
Solution:
After disabling touch events for a window in WPF the issue is no longer reproducible for the WPFBrowserView control.
Disabling WPF touch events for a window:
https://msdn.microsoft.com/en-us/library/dd901337(v=vs.90).aspx
The following sample code shows how to remove the default tablet platform support during window source initialization.
protected override void OnSourceInitialized(EventArgs e)
{
Type inputManagerType = typeof(InputManager);
object stylusLogic = inputManagerType.InvokeMember("StylusLogic",
BindingFlags.GetProperty |
BindingFlags.Instance |
BindingFlags.NonPublic,
null,
InputManager.Current,
null);
Type stylusLogicType = stylusLogic.GetType();
FieldInfo deviceCount = stylusLogicType.GetField("_lastSeenDeviceCount",
BindingFlags.Instance | BindingFlags.NonPublic);
while (Tablet.TabletDevices.Count > 0)
{
if (deviceCount != null)
deviceCount.SetValue(stylusLogic,
1 + (int) deviceCount.GetValue(stylusLogic));
int index = Tablet.TabletDevices.Count - 1;
stylusLogicType.InvokeMember("OnTabletRemoved",
BindingFlags.InvokeMethod |
BindingFlags.Instance |
BindingFlags.NonPublic,
null,
stylusLogic,
new object[] {(uint) index});
}
base.OnSourceInitialized(e);
}