HResult INiIsolationClient.PreProcessMessage(ref NiMessage message, out PreProcessMessageResult preProcessMessageResult)
{
preProcessMessageResult = 0;
try
{
var result = HResult.False;
var target = FindTarget(message.HWnd);
if (target != null)
{
Message msg = message;
result = target.PreProcessMessage(ref msg) ? HResult.OK : HResult.False;
message = msg;
if (ControlStubs.ControlGetState2(target, ControlStubs.STATE2_INPUTKEY))
{
preProcessMessageResult |= PreProcessMessageResult.IsInputKey;
}
if (ControlStubs.ControlGetState2(target, ControlStubs.STATE2_INPUTCHAR))
{
preProcessMessageResult |= PreProcessMessageResult.IsInputChar;
}
}
return(result);
}
catch (Exception ex)
{
return(ErrorUtil.GetHResult(ex));
}
}
public HResult PreFilterMessage(ref NiMessage message)
{
try
{
if (_preMessageFilterRecursion > 0)
{
return(HResult.False);
}
_preMessageFilterRecursion++;
try
{
return(MessageFilterUtil.InvokeMessageFilter(ref message)
? HResult.OK
: HResult.False);
}
finally
{
_preMessageFilterRecursion--;
}
}
catch (Exception ex)
{
return(ErrorUtil.GetHResult(ex));
}
}
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
if (base.ProcessCmdKey(ref msg, keyData))
{
return(true);
}
NiMessage message = msg;
bool result = ErrorUtil.ThrowOnFailure(_host.ProcessCmdKey(ref message, keyData));
msg = message;
return(result);
}
HResult INiIsolationHost.ProcessCmdKey(ref NiMessage message, Keys keyData)
{
try
{
Message msg = message;
bool result = ProcessCmdKey(ref msg, keyData);
message = msg;
return(result ? HResult.OK : HResult.False);
}
catch (Exception ex)
{
return(ErrorUtil.GetHResult(ex));
}
}
public static bool InvokeMessageFilter(ref NiMessage message)
{
// This methods invokes System.Windows.Forms.Application+ThreadContext.ProcessFilters.
// The purpose of this is to broadcast pre-filter messages over
// AppDomains. The idea is that every AppDomain has a mesage filter.
// When this message filter receives a message, it is passed
// to INiShell.BroadcastPreFilterMessage. That method invokes
// this method on AppDomain 1 and passes it on to all INiPackages
// that implement INiPreMessageFilter. That implementation in turn
// also invokes this method so that the message is broadcasted to
// the rest of the AppDomains. Care must be taken to make sure that
// this does not recurse, so all calls to INiShell.BroadcastPreMessageFilter
// and MessageFilterUtil.InvokeMessageFilter must be protected with
// recursion prevention.
return(_invokeMessageFilterDelegate(ref message));
}
public HResult PreProcessMessage(ref NiMessage message, out PreProcessMessageResult preProcessMessageResult)
{
preProcessMessageResult = 0;
try
{
if (_page != null)
{
return(_page.PreProcessMessage(ref message, out preProcessMessageResult));
}
return(HResult.False);
}
catch (Exception ex)
{
return(ErrorUtil.GetHResult(ex));
}
}
public override bool PreProcessMessage(ref Message msg)
{
NiMessage message = msg;
PreProcessMessageResult preProcessMessageResult;
bool processed = ErrorUtil.ThrowOnFailure(_window.PreProcessMessage(ref message, out preProcessMessageResult));
msg = message;
ControlStubs.ControlSetState2(
this,
ControlStubs.STATE2_INPUTKEY,
(preProcessMessageResult & PreProcessMessageResult.IsInputKey) != 0
);
ControlStubs.ControlSetState2(
this,
ControlStubs.STATE2_INPUTCHAR,
(preProcessMessageResult & PreProcessMessageResult.IsInputChar) != 0
);
return(processed);
}
public bool PreFilterMessage(ref Message m)
{
if (_package._preMessageFilterRecursion > 0)
{
return(false);
}
_package._preMessageFilterRecursion++;
try
{
InstallListViewListener(ref m);
NiMessage message = m;
bool processed = ErrorUtil.ThrowOnFailure(_shell.BroadcastPreMessageFilter(ref message));
m = message;
return(processed);
}
finally
{
_package._preMessageFilterRecursion--;
}
}
