protected override void WndProc(ref Message m)
{
if ((m.Msg == NativeMethods.WM_NOTIFY_REFLECT) && m_bSupported)
{
try
{
NativeMethods.NMHDR nm = (NativeMethods.NMHDR)m.GetLParam(
typeof(NativeMethods.NMHDR));
if (nm.code == BCN_DROPDOWN)
{
if (m_ctx != null)
{
m_ctx.ShowEx(this);
return; // We handled it
}
else
{
Debug.Assert(false);
}
}
}
catch (Exception) { Debug.Assert(false); }
}
base.WndProc(ref m);
}
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case 0x4e:
case 0x204e: {
NativeMethods.NMHDR nmhdr = (NativeMethods.NMHDR)System.Runtime.InteropServices.Marshal.PtrToStructure(m.LParam, typeof(NativeMethods.NMHDR));
if (nmhdr.code == -327) //NativeMethods.HDN_ENDTRACK)
{
try {
((IComponentChangeService)this.GetService(typeof(IComponentChangeService))).OnComponentChanged(base.Component, null, null, null);
}
catch (InvalidOperationException /*exception*/) {
//if (!this.inShowErrorDialog)
//{
// IUIService service = (IUIService) base.Component.Site.GetService(typeof(IUIService));
// this.inShowErrorDialog = true;
// try
// {
// DataGridViewDesigner.ShowErrorDialog(service, exception, (ListView) base.Component);
// }
// finally
// {
// this.inShowErrorDialog = false;
// }
//}
return;
}
}
break;
}
}
base.WndProc(ref m);
}
/// <include file='doc\PageSelector.uex' path='docs/doc[@for="PageSelector.WndProc"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
protected override void WndProc(ref Message m)
{
if (m.Msg == NativeMethods.WM_REFLECT + NativeMethods.WM_NOTIFY)
{
NativeMethods.NMHDR nmh = (NativeMethods.NMHDR)Marshal.PtrToStructure(m.LParam, typeof(NativeMethods.NMHDR));
if (nmh.code == NativeMethods.NM_CUSTOMDRAW)
{
OnCustomDraw(ref m);
return;
}
}
base.WndProc(ref m);
}
private void WmReflectNotify(ref Message m)
{
NativeMethods.NMHDR note = (NativeMethods.NMHDR)m.GetLParam(typeof(NativeMethods.NMHDR));
switch (note.code)
{
case NativeMethods.NM_CUSTOMDRAW:
WmNotifyCustomDraw(ref m);
break;
case NativeMethods.TBN_BEGINDRAG:
WmNotifyBeginDrag(ref m);
break;
case NativeMethods.TBN_ENDDRAG:
WmNotifyEndDrag(ref m);
break;
case NativeMethods.TBN_DRAGOUT:
WmNotifyDragOut(ref m);
break;
case NativeMethods.TBN_GETOBJECT:
WmNotifyGetObject(ref m);
break;
case NativeMethods.TBN_DROPDOWN:
WmNotifyDropDown(ref m);
break;
case NativeMethods.TBN_HOTITEMCHANGE:
WmNotifyHotItemChange(ref m);
break;
case NativeMethods.TBN_QUERYINSERT:
m.Result = (IntPtr)1;
break;
case NativeMethods.TTN_NEEDTEXTA:
WmNotifyNeedTextA(ref m);
m.Result = (IntPtr)1;
return;
case NativeMethods.TTN_NEEDTEXTW:
WmNotifyNeedTextW(ref m);
m.Result = (IntPtr)1;
return;
}
}
private void WmReflectNotify(ref Message m)
{
NativeMethods.NMHDR note = (NativeMethods.NMHDR)m.GetLParam(typeof(NativeMethods.NMHDR));
switch (note.code)
{
case NativeMethods.TBN_HOTITEMCHANGE:
WmNotifyHotItemChange(ref m);
break;
case NativeMethods.NM_CUSTOMDRAW:
WmCustomDraw(ref m);
break;
case NativeMethods.TBN_QUERYINSERT:
m.Result = (IntPtr)1;
break;
}
}
protected override void WndProc(ref Message m)
{
if (!_allowColumnResize)
{
if (m.Msg == NativeMethods.WM_NOTIFY)
{
NativeMethods.NMHDR nmhdr = (NativeMethods.NMHDR)m.GetLParam(typeof(NativeMethods.NMHDR));
switch (nmhdr.code)
{
case NativeMethods.HDN_BEGINTRACKA:
case NativeMethods.HDN_BEGINTRACKW:
m.Result = new IntPtr(1);
return;
}
}
}
base.WndProc(ref m);
}
/// <devdoc>
/// Override for WndProc to handle our PSP messages
/// </devdoc>
protected override void WndProc(ref Message m)
{
CancelEventArgs ce;
switch (m.Msg)
{
case NativeMethods.WM_NOTIFY:
NativeMethods.NMHDR nmhdr = (NativeMethods.NMHDR)Marshal.PtrToStructure(m.LParam, typeof(NativeMethods.NMHDR));
switch (nmhdr.code)
{
case NativeMethods.PSN_RESET:
_closeCalled = true;
_page.OnClosed(EventArgs.Empty);
return;
case NativeMethods.PSN_APPLY:
PageApplyEventArgs pae = new PageApplyEventArgs();
_page.OnApply(pae);
switch (pae.ApplyBehavior)
{
case ApplyKind.Cancel:
m.Result = (IntPtr)NativeMethods.PSNRET_INVALID;
break;
case ApplyKind.CancelNoNavigate:
m.Result = (IntPtr)NativeMethods.PSNRET_INVALID_NOCHANGEPAGE;
break;
case ApplyKind.Apply:
default:
m.Result = IntPtr.Zero;
break;
}
UnsafeNativeMethods.SetWindowLong(m.HWnd, NativeMethods.DWL_MSGRESULT, m.Result);
return;
case NativeMethods.PSN_KILLACTIVE:
ce = new CancelEventArgs();
_page.OnDeactivate(ce);
m.Result = (IntPtr)(ce.Cancel ? 1 : 0);
UnsafeNativeMethods.SetWindowLong(m.HWnd, NativeMethods.DWL_MSGRESULT, m.Result);
return;
case NativeMethods.PSN_SETACTIVE:
_closeCalled = false;
ce = new CancelEventArgs();
_page.OnActivate(ce);
m.Result = (IntPtr)(ce.Cancel ? -1 : 0);
UnsafeNativeMethods.SetWindowLong(m.HWnd, NativeMethods.DWL_MSGRESULT, m.Result);
return;
}
break;
case NativeMethods.WM_DESTROY:
// we can't tell the difference between OK and Apply (see above), so
// if we get a destroy and close hasn't been called, make sure we call it
//
if (!_closeCalled && _page != null)
{
_page.OnClosed(EventArgs.Empty);
}
break;
}
base.WndProc(ref m);
}
private void WmReflectNotify(ref Message m)
{
if (m.HWnd != Handle)
{
base.WndProc(ref m);
}
else
{
NativeMethods.NMHDR hdr = (NativeMethods.NMHDR)m.GetLParam(typeof(NativeMethods.NMHDR));
switch (hdr.code)
{
case NativeMethods.EN_PROTECTED:
// WinForms is blocking edits at the beginning of the text
// if the first character is locked, and between two locked
// sections if they are adjacent to each other. If we have
// a zero-length character range that falls at the beginning
// of a locked field then stop the EN_PROTECTED notification
// from reaching the base. Note that the OnProtected override
// is especially lame: you get the notification after the
// response to the notification is determined and after the control
// has beeped!
NativeMethods.ENPROTECTED protectedInfo = NativeMethods.ENPROTECTED.Create(ref m);
NativeMethods.CHARRANGE range = protectedInfo.chrg;
int characterIndex = range.cpMin;
if (characterIndex == range.cpMax)
{
LockedField[] fields = myLockedFields;
if (fields != null)
{
for (int i = 0; i < fields.Length; ++i)
{
int fieldIndex = fields[i].Index;
int diff = fieldIndex - characterIndex;
if (diff >= 0)
{
if (diff == 0)
{
if (protectedInfo.msg == NativeMethods.WM_KEYDOWN)
{
// If we a keydown, then we can't let through
// a delete and we can't let through a backspace
// if we're touching the previous field
bool keepProtected = false;
switch ((Keys)protectedInfo.wParam)
{
case Keys.Delete:
keepProtected = true;
break;
case Keys.Back:
if (i > 0)
{
LockedField previousField = fields[i - 1];
// If we're touching the previous field, then don't allow
// a backspace.
keepProtected = (previousField.Index + previousField.Length) == fieldIndex;
}
break;
}
if (keepProtected)
{
break;
}
}
myAllowedProtectedEdit = true;
m.Result = (IntPtr)0;
return;
}
break;
}
}
}
}
break;
}
base.WndProc(ref m);
}
}
/// <summary>
/// Overrides WndProc to intercept custom draw messages in the message queue
/// </summary>
/// <param name="m"></param>
protected override void WndProc(ref Message m)
{
if (m.Msg == 20)
{
m.Result = IntPtr.Zero;
}
else
{
base.WndProc(ref m);
if (m.Msg == 0x204e)
{
NativeMethods.NMHDR structure = (NativeMethods.NMHDR)Marshal.PtrToStructure(m.LParam, typeof(NativeMethods.NMHDR));
if (structure.code == -12)
{
IntPtr ptr;
Marshal.StructureToPtr(structure, m.LParam, false);
NativeMethods.NMCUSTOMDRAW nmcustomdraw = (NativeMethods.NMCUSTOMDRAW)Marshal.PtrToStructure(m.LParam, typeof(NativeMethods.NMCUSTOMDRAW));
if (nmcustomdraw.dwDrawStage == NativeMethods.CustomDrawDrawStage.CDDS_PREPAINT)
{
Graphics graphics = Graphics.FromHdc(nmcustomdraw.hdc);
PaintEventArgs e = new PaintEventArgs(graphics, this.Bounds);
e.Graphics.TranslateTransform((float)(0 - this.Left), (float)(0 - this.Top));
this.InvokePaintBackground(this.Parent, e);
this.InvokePaint(this.Parent, e);
SolidBrush brush = new SolidBrush(this.BackColor);
e.Graphics.FillRectangle(brush, this.Bounds);
brush.Dispose();
e.Graphics.ResetTransform();
e.Dispose();
graphics.Dispose();
ptr = new IntPtr(0x30);
m.Result = ptr;
}
else if (nmcustomdraw.dwDrawStage == NativeMethods.CustomDrawDrawStage.CDDS_POSTPAINT)
{
this.OnDrawTicks(nmcustomdraw.hdc);
this.OnDrawChannel(nmcustomdraw.hdc);
this.OnDrawThumb(nmcustomdraw.hdc);
}
else if (nmcustomdraw.dwDrawStage == NativeMethods.CustomDrawDrawStage.CDDS_ITEMPREPAINT)
{
if (nmcustomdraw.dwItemSpec.ToInt32() == 2)
{
this.ThumbBounds = nmcustomdraw.rc.ToRectangle();
if (this.Enabled)
{
if (nmcustomdraw.uItemState == NativeMethods.CustomDrawItemState.CDIS_SELECTED)
{
this.ThumbState = 3;
}
else
{
this.ThumbState = 1;
}
}
else
{
this.ThumbState = 5;
}
this.OnDrawThumb(nmcustomdraw.hdc);
}
else if (nmcustomdraw.dwItemSpec.ToInt32() == 3)
{
this.ChannelBounds = nmcustomdraw.rc.ToRectangle();
this.OnDrawChannel(nmcustomdraw.hdc);
}
else if (nmcustomdraw.dwItemSpec.ToInt32() == 1)
{
this.OnDrawTicks(nmcustomdraw.hdc);
}
ptr = new IntPtr(4);
m.Result = ptr;
}
}
}
}
}
/// <summary>
/// Overrides <see cref="M:System.Windows.Forms.Control.WndProc(System.Windows.Forms.Message@)"/>.
/// </summary>
/// <param name="m">The Windows <see cref="T:System.Windows.Forms.Message"/> to process.</param>
protected override void WndProc(ref Message m)
{
if (!DesignMode)
{
switch (m.Msg)
{
case 123: // WM_CONTEXTMENU
{
uint pos = unchecked ((uint)m.LParam);
Select();
OnShowContextMenu(new MouseEventArgs(Control.MouseButtons, 1,
unchecked ((short)(ushort)(pos & 0xFFFF)),
unchecked ((short)(ushort)(pos >> 16)), 0));
return;
}
case NativeMethods.OCM_NOTIFY:
// Receives ListView notifications
if (CheckBoxes && StrictCheckboxesClick)
{
NativeMethods.NMHDR hdr = (NativeMethods.NMHDR)Marshal.PtrToStructure(m.LParam, typeof(NativeMethods.NMHDR));
if (hdr.code == NativeMethods.NM_DBLCLK)
{
Point mp = PointToClient(MousePosition);
ListViewHitTestInfo hi = HitTest(mp);
if (hi != null && hi.Location != ListViewHitTestLocations.StateImage)
{
MouseEventArgs me = new MouseEventArgs(MouseButtons.Left, 2, mp.X, mp.Y, 0);
OnDoubleClick(me);
OnMouseDoubleClick(me);
return;
}
}
}
break;
case NativeMethods.WM_NOTIFY:
// Receives child control notifications (like that of the header control)
if (CheckBoxes && ShowSelectAllCheckBox)
{
NativeMethods.NMHDR hdr = (NativeMethods.NMHDR)Marshal.PtrToStructure(m.LParam, typeof(NativeMethods.NMHDR));
if (hdr.code == NativeMethods.HDN_ITEMSTATEICONCLICK)
{
CancelEventArgs ce = new CancelEventArgs();
PerformSelectAllCheckedChange(ce);
if (ce.Cancel)
{
return;
}
}
}
break;
case NativeMethods.WM_HSCROLL:
WmHScroll(ref m);
break;
case NativeMethods.WM_VSCROLL:
WmVScroll(ref m);
break;
}
}
base.WndProc(ref m);
}
