private void OnPaint(ref Message m)
{
System.Windows.Forms.NativeMethods.PAINTSTRUCT lpPaint = new System.Windows.Forms.NativeMethods.PAINTSTRUCT();
IntPtr hdc = System.Windows.Forms.UnsafeNativeMethods.BeginPaint(new HandleRef(this, base.Handle), ref lpPaint);
this.CreateMirrorDC(hdc, this.windowBounds.Width - 1);
try
{
for (int i = 0; i < this.items.Count; i++)
{
Rectangle iconBounds = ((ErrorProvider.ControlItem) this.items[i]).GetIconBounds(this.provider.Region.Size);
System.Windows.Forms.SafeNativeMethods.DrawIconEx(new HandleRef(this, this.mirrordc.Hdc), iconBounds.X - this.windowBounds.X, iconBounds.Y - this.windowBounds.Y, new HandleRef(this.provider.Region, this.provider.Region.IconHandle), iconBounds.Width, iconBounds.Height, 0, System.Windows.Forms.NativeMethods.NullHandleRef, 3);
}
}
finally
{
this.RestoreMirrorDC();
}
System.Windows.Forms.UnsafeNativeMethods.EndPaint(new HandleRef(this, base.Handle), ref lpPaint);
}
private void WndProc(ref Message msg)
{
int num2 = msg.Msg;
if (num2 <= 0x21)
{
switch (num2)
{
case 3:
this.WmMove();
return;
case 15:
goto Label_00FF;
case 0x21:
this.WmMouseActivate(ref msg);
return;
}
goto Label_027D;
}
if (num2 <= 0x318)
{
switch (num2)
{
case 70:
this.WmWindowPosChanging(ref msg);
return;
case 0x47:
if (!this.WmWindowPosChanged())
{
this.window.DefWndProc(ref msg);
}
return;
case 0x318:
goto Label_00FF;
}
goto Label_027D;
}
if (num2 == 0x410)
{
this.WmWindowFromPoint(ref msg);
return;
}
if (num2 != 0x204e)
{
goto Label_027D;
}
System.Windows.Forms.NativeMethods.NMHDR lParam = (System.Windows.Forms.NativeMethods.NMHDR) msg.GetLParam(typeof(System.Windows.Forms.NativeMethods.NMHDR));
if ((lParam.code == -521) && !this.trackPosition)
{
this.WmShow();
return;
}
if (lParam.code == -522)
{
this.WmPop();
this.window.DefWndProc(ref msg);
}
return;
Label_00FF:
if ((this.ownerDraw && !this.isBalloon) && !this.trackPosition)
{
System.Windows.Forms.NativeMethods.PAINTSTRUCT lpPaint = new System.Windows.Forms.NativeMethods.PAINTSTRUCT();
Graphics graphics = Graphics.FromHdcInternal(System.Windows.Forms.UnsafeNativeMethods.BeginPaint(new HandleRef(this, this.Handle), ref lpPaint));
Rectangle bounds = new Rectangle(lpPaint.rcPaint_left, lpPaint.rcPaint_top, lpPaint.rcPaint_right - lpPaint.rcPaint_left, lpPaint.rcPaint_bottom - lpPaint.rcPaint_top);
if (bounds == Rectangle.Empty)
{
return;
}
System.Windows.Forms.NativeMethods.TOOLINFO_TOOLTIP toolinfo_tooltip = new System.Windows.Forms.NativeMethods.TOOLINFO_TOOLTIP {
cbSize = Marshal.SizeOf(typeof(System.Windows.Forms.NativeMethods.TOOLINFO_TOOLTIP))
};
if (((int) ((long) System.Windows.Forms.UnsafeNativeMethods.SendMessage(new HandleRef(this, this.Handle), System.Windows.Forms.NativeMethods.TTM_GETCURRENTTOOL, 0, toolinfo_tooltip))) != 0)
{
Font defaultFont;
IWin32Window associatedWindow = (IWin32Window) this.owners[toolinfo_tooltip.hwnd];
Control associatedControl = Control.FromHandleInternal(toolinfo_tooltip.hwnd);
if (associatedWindow == null)
{
associatedWindow = associatedControl;
}
System.Windows.Forms.IntSecurity.ObjectFromWin32Handle.Assert();
try
{
defaultFont = Font.FromHfont(System.Windows.Forms.UnsafeNativeMethods.SendMessage(new HandleRef(this, this.Handle), 0x31, 0, 0));
}
catch (ArgumentException)
{
defaultFont = Control.DefaultFont;
}
finally
{
CodeAccessPermission.RevertAssert();
}
try
{
this.OnDraw(new DrawToolTipEventArgs(graphics, associatedWindow, associatedControl, bounds, this.GetToolTip(associatedControl), this.BackColor, this.ForeColor, defaultFont));
return;
}
finally
{
graphics.Dispose();
System.Windows.Forms.UnsafeNativeMethods.EndPaint(new HandleRef(this, this.Handle), ref lpPaint);
}
}
}
Label_027D:
this.window.DefWndProc(ref msg);
}
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case 7:
try
{
this.fireSetFocus = false;
base.WndProc(ref m);
return;
}
finally
{
this.fireSetFocus = true;
}
break;
case 8:
break;
case 15:
if (!base.GetStyle(ControlStyles.UserPaint) && ((this.FlatStyle == System.Windows.Forms.FlatStyle.Flat) || (this.FlatStyle == System.Windows.Forms.FlatStyle.Popup)))
{
using (WindowsRegion region = new WindowsRegion(this.FlatComboBoxAdapter.dropDownRect))
{
using (WindowsRegion region2 = new WindowsRegion(base.Bounds))
{
IntPtr wParam;
System.Windows.Forms.NativeMethods.RegionFlags flags = (System.Windows.Forms.NativeMethods.RegionFlags) System.Windows.Forms.SafeNativeMethods.GetUpdateRgn(new HandleRef(this, base.Handle), new HandleRef(this, region2.HRegion), true);
region.CombineRegion(region2, region, RegionCombineMode.DIFF);
Rectangle updateRegionBox = region2.ToRectangle();
this.FlatComboBoxAdapter.ValidateOwnerDrawRegions(this, updateRegionBox);
System.Windows.Forms.NativeMethods.PAINTSTRUCT lpPaint = new System.Windows.Forms.NativeMethods.PAINTSTRUCT();
bool flag2 = false;
if (m.WParam == IntPtr.Zero)
{
wParam = System.Windows.Forms.UnsafeNativeMethods.BeginPaint(new HandleRef(this, base.Handle), ref lpPaint);
flag2 = true;
}
else
{
wParam = m.WParam;
}
using (DeviceContext context = DeviceContext.FromHdc(wParam))
{
using (WindowsGraphics graphics = new WindowsGraphics(context))
{
if (flags != System.Windows.Forms.NativeMethods.RegionFlags.ERROR)
{
graphics.DeviceContext.SetClip(region);
}
m.WParam = wParam;
this.DefWndProc(ref m);
if (flags != System.Windows.Forms.NativeMethods.RegionFlags.ERROR)
{
graphics.DeviceContext.SetClip(region2);
}
using (Graphics graphics2 = Graphics.FromHdcInternal(wParam))
{
this.FlatComboBoxAdapter.DrawFlatCombo(this, graphics2);
}
}
}
if (flag2)
{
System.Windows.Forms.UnsafeNativeMethods.EndPaint(new HandleRef(this, base.Handle), ref lpPaint);
}
}
return;
}
}
base.WndProc(ref m);
return;
case 20:
this.WmEraseBkgnd(ref m);
return;
case 0x47:
if (!this.suppressNextWindosPos)
{
base.WndProc(ref m);
}
this.suppressNextWindosPos = false;
return;
case 130:
base.WndProc(ref m);
this.ReleaseChildWindow();
return;
case 0x20:
base.WndProc(ref m);
return;
case 0x30:
if (base.Width == 0)
{
this.suppressNextWindosPos = true;
}
base.WndProc(ref m);
return;
case 0x133:
case 0x134:
goto Label_017F;
case 0x201:
this.mouseEvents = true;
base.WndProc(ref m);
return;
case 0x202:
{
System.Windows.Forms.NativeMethods.RECT rect = new System.Windows.Forms.NativeMethods.RECT();
System.Windows.Forms.UnsafeNativeMethods.GetWindowRect(new HandleRef(this, base.Handle), ref rect);
Rectangle rectangle = new Rectangle(rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
int x = System.Windows.Forms.NativeMethods.Util.SignedLOWORD(m.LParam);
int y = System.Windows.Forms.NativeMethods.Util.SignedHIWORD(m.LParam);
Point p = new Point(x, y);
p = base.PointToScreen(p);
if (this.mouseEvents && !base.ValidationCancelled)
{
this.mouseEvents = false;
if (base.Capture && rectangle.Contains(p))
{
this.OnClick(new MouseEventArgs(MouseButtons.Left, 1, System.Windows.Forms.NativeMethods.Util.SignedLOWORD(m.LParam), System.Windows.Forms.NativeMethods.Util.SignedHIWORD(m.LParam), 0));
this.OnMouseClick(new MouseEventArgs(MouseButtons.Left, 1, System.Windows.Forms.NativeMethods.Util.SignedLOWORD(m.LParam), System.Windows.Forms.NativeMethods.Util.SignedHIWORD(m.LParam), 0));
}
base.WndProc(ref m);
return;
}
base.CaptureInternal = false;
this.DefWndProc(ref m);
return;
}
case 0x210:
this.WmParentNotify(ref m);
return;
case 0x202b:
this.WmReflectDrawItem(ref m);
return;
case 0x202c:
this.WmReflectMeasureItem(ref m);
return;
case 0x2111:
this.WmReflectCommand(ref m);
return;
case 0x2a3:
this.DefWndProc(ref m);
this.OnMouseLeaveInternal(EventArgs.Empty);
return;
case 0x318:
if ((base.GetStyle(ControlStyles.UserPaint) || (this.FlatStyle != System.Windows.Forms.FlatStyle.Flat)) && (this.FlatStyle != System.Windows.Forms.FlatStyle.Popup))
{
goto Label_04EF;
}
this.DefWndProc(ref m);
if ((((int) ((long) m.LParam)) & 4) != 4)
{
goto Label_04EF;
}
if ((!base.GetStyle(ControlStyles.UserPaint) && (this.FlatStyle == System.Windows.Forms.FlatStyle.Flat)) || (this.FlatStyle == System.Windows.Forms.FlatStyle.Popup))
{
using (Graphics graphics3 = Graphics.FromHdcInternal(m.WParam))
{
this.FlatComboBoxAdapter.DrawFlatCombo(this, graphics3);
}
}
return;
default:
if (m.Msg == System.Windows.Forms.NativeMethods.WM_MOUSEENTER)
{
this.DefWndProc(ref m);
this.OnMouseEnterInternal(EventArgs.Empty);
return;
}
base.WndProc(ref m);
return;
}
try
{
this.fireLostFocus = false;
base.WndProc(ref m);
if (((!Application.RenderWithVisualStyles && !base.GetStyle(ControlStyles.UserPaint)) && (this.DropDownStyle == ComboBoxStyle.DropDownList)) && ((this.FlatStyle == System.Windows.Forms.FlatStyle.Flat) || (this.FlatStyle == System.Windows.Forms.FlatStyle.Popup)))
{
System.Windows.Forms.UnsafeNativeMethods.PostMessage(new HandleRef(this, base.Handle), 0x2a3, 0, 0);
}
return;
}
finally
{
this.fireLostFocus = true;
}
Label_017F:
m.Result = this.InitializeDCForWmCtlColor(m.WParam, m.Msg);
return;
Label_04EF:
base.WndProc(ref m);
}
