private void OnWmActivate(GuiForm form, EventArgs e)
{
GuiForm lastForm = lastActiveTopLevelForm as GuiForm;
System.TimeSpan timeFromActivation = DateTime.Now - form.ActivateAppTime;
System.TimeSpan timeFromMouseActivation = DateTime.Now - form.MouseActivateAppTime;
ActivateArgs args = (ActivateArgs)e;
if (timeFromActivation.TotalMilliseconds < 200 && args.WmParam == NativeWindowCommon.MA_ACTIVATE && (timeFromMouseActivation.Milliseconds > 200)) // we are moving from another application
//there was no click on the application
{
if (lastForm != null && lastForm != form && !lastForm.IsClosing &&
!ContextForms.IsLastForm(form) && //new from is opening
ContextForms.BelongsToCurrentContext(lastForm)) //we are in the same context
{
if (!lastForm.IsMdiChild && !lastForm.IsMdiContainer)
{//the solution is not for MDI windows
args.StopActivation = true;
lastForm.Activate();
}
}
}
}
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
#if !PocketPC
case NativeWindowCommon.WM_COPYDATA:
CopyData(this, new CopyDataEventArgs(m.LParam));
break;
case NativeWindowCommon.WM_WINDOWPOSCHANGING:
WindowReposition(m);
break;
#endif
case NativeWindowCommon.WM_SIZING:
if (Sizing != null)
{
SizingEventArgs sizingEventArgs = new SizingEventArgs(
(NativeWindowCommon.SizingEdges)m.WParam,
(NativeWindowCommon.RECT)Marshal.PtrToStructure(m.LParam, typeof(NativeWindowCommon.RECT))
);
Sizing(this, sizingEventArgs);
Marshal.StructureToPtr(sizingEventArgs.DragRect, m.LParam, true);
}
break;
case NativeWindowCommon.WM_SYSCOMMAND:
if (!AllowMove && m.WParam.ToInt32() == NativeWindowCommon.SC_MOVE)
{
return;
}
else
{
//Defect #125874. It is .Net behavior (or bug?) that if MaximizeBox = false and the form is being maximized, it covers
//the whole screen --- even expanding below the task bar.
//So, temporarily set MaximizeBox = true.
bool isRestoring = (m.WParam.ToInt32().Equals(NativeWindowCommon.SC_RESTORE));
bool orgMaxBox = this.MaximizeBox;
if (isRestoring)
{
this.MaximizeBox = true;
}
//Defect 81609: simulating behavior in unipass 1.9:
//the ACT_HIT message added to the queue by WM_NCLBUTTONDOWN, was not extracted untill whole WM_SYSCOMMAND was not exectuted.
//WM_SYSCOMMAND exits only after mouse is up and all needed windows are activated
//if we will handle ACT_HIT before it, WM_SYSCOMMAND will override our handling and activate clicked window disregarding magic logic.
base.WndProc(ref m);
if (isRestoring)
{
this.MaximizeBox = orgMaxBox;
}
RaiseMouseDownIfNeeded();
return;
}
case NativeWindowCommon.WM_NCLBUTTONDOWN:
case NativeWindowCommon.WM_NCRBUTTONDOWN:
case NativeWindowCommon.WM_NCLBUTTONDBLCLK:
if (!AllowMove && m.WParam.ToInt32() == NativeWindowCommon.HTCAPTION && m.Msg == NativeWindowCommon.WM_NCLBUTTONDOWN)
{
OnNCMouseDown(m);
return;
}
else
{
int param = m.WParam.ToInt32();
Debug.Write("WM_NCLBUTTONDOWN Param=" + param);
Debug.Flush();
postponedMessage = m;
// Activate();
}
break;
case NativeWindowCommon.WM_CHILDACTIVATE:
NativeWindowCommon.SendMessage(this.Handle, NativeWindowCommon.WM_NCACTIVATE, 1, 0);
break;
case NativeWindowCommon.WM_NCACTIVATE:
if (NCActivate != null && m.WParam.ToInt32() == 1)
{
NCActivate(this, new EventArgs());
}
break;
case NativeWindowCommon.WM_ACTIVATE:
if (WMActivate != null)
{
ActivateArgs args = new ActivateArgs();
args.WmParam = (int)m.WParam;
WMActivate(this, args);
if (args.StopActivation) //restore focus to last form
{
return;
}
}
break;
case NativeWindowCommon.WM_ACTIVATEAPP:
if (m.WParam.ToInt32() == 1) // application is activated
{
activateAppTime = DateTime.Now;
}
break;
case NativeWindowCommon.WM_MOUSEACTIVATE:
mouseActivateAppTime = DateTime.Now;;
break;
}
base.WndProc(ref m);
}
internal void WMActivateHandler(object sender, ActivateArgs e)
{
handleEvent(EventType.WMACTIVATE, sender, e);
}
