private void WmPaint(ref Message m)
{
if (base.DropDownStyle == ComboBoxStyle.Simple)
{
base.WndProc(ref m);
}
else if (base.DropDownStyle == ComboBoxStyle.DropDown)
{
if (!this._bPainting)
{
CCWin.Win32.Struct.PAINTSTRUCT ps = new CCWin.Win32.Struct.PAINTSTRUCT();
this._bPainting = true;
CCWin.Win32.NativeMethods.BeginPaint(m.HWnd, ref ps);
this.RenderComboBox(ref m);
CCWin.Win32.NativeMethods.EndPaint(m.HWnd, ref ps);
this._bPainting = false;
m.Result = Result.TRUE;
}
else
{
base.WndProc(ref m);
}
}
else
{
base.WndProc(ref m);
this.RenderComboBox(ref m);
}
}
protected override void WndProc(ref Message m)
{
if (m.Msg == 15)
{
if (!this._bPainting)
{
this._bPainting = true;
CCWin.Win32.Struct.PAINTSTRUCT ps = new CCWin.Win32.Struct.PAINTSTRUCT();
CCWin.Win32.NativeMethods.BeginPaint(m.HWnd, ref ps);
this.DrawUpDownButton();
CCWin.Win32.NativeMethods.EndPaint(m.HWnd, ref ps);
this._bPainting = false;
m.Result = TRUE;
}
else
{
base.WndProc(ref m);
}
}
else
{
base.WndProc(ref m);
}
}
//处理重绘事件
private void WmPaint(ref Message m)
{
if (base.DropDownStyle == ComboBoxStyle.Simple) {
base.WndProc(ref m);
return;
}
if (base.DropDownStyle == ComboBoxStyle.DropDown) {
if (!_bPainting) {
PAINTSTRUCT ps =
new PAINTSTRUCT();
_bPainting = true;
NativeMethods.BeginPaint(m.HWnd, ref ps);
RenderComboBox(ref m);
NativeMethods.EndPaint(m.HWnd, ref ps);
_bPainting = false;
m.Result = Result.TRUE;
} else {
base.WndProc(ref m);
}
} else {
base.WndProc(ref m);
RenderComboBox(ref m);
}
}
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case WM.WM_PAINT:
if (!_bPainting)
{
_bPainting = true;
PAINTSTRUCT ps = new PAINTSTRUCT();
NativeMethods.BeginPaint(m.HWnd, ref ps);
try
{
DrawProgressBar(m.HWnd);
}
catch
{
}
NativeMethods.ValidateRect(m.HWnd, ref ps.rcPaint);
NativeMethods.EndPaint(m.HWnd, ref ps);
_bPainting = false;
m.Result = Result.TRUE;
}
else
{
base.WndProc(ref m);
}
break;
default:
base.WndProc(ref m);
break;
}
}
protected override void WndProc(ref Message m)
{
if (m.Msg == 15)
{
if (!this._bPainting)
{
this._bPainting = true;
CCWin.Win32.Struct.PAINTSTRUCT ps = new CCWin.Win32.Struct.PAINTSTRUCT();
CCWin.Win32.NativeMethods.BeginPaint(m.HWnd, ref ps);
try
{
this.DrawProgressBar(m.HWnd);
}
catch
{
}
CCWin.Win32.NativeMethods.ValidateRect(m.HWnd, ref ps.rcPaint);
CCWin.Win32.NativeMethods.EndPaint(m.HWnd, ref ps);
this._bPainting = false;
m.Result = Result.TRUE;
}
else
{
base.WndProc(ref m);
}
}
else
{
base.WndProc(ref m);
}
}
public static extern IntPtr BeginPaint(IntPtr hWnd, ref PAINTSTRUCT ps);
public static extern bool EndPaint(IntPtr hWnd, ref PAINTSTRUCT ps);
protected override void WndProc(ref Message m)
{
try
{
switch (m.Msg)
{
case 0x200:
case 0x202:
this.DrawScrollBar(m.HWnd, this._maskControl.Handle);
base.WndProc(ref m);
return;
case 0x201:
this._lastMouseDownHistTest = this.ScrollBarHitTest(m.HWnd);
this.DrawScrollBar(m.HWnd, this._maskControl.Handle);
base.WndProc(ref m);
return;
case 0x2a3:
this.DrawScrollBar(m.HWnd, this._maskControl.Handle);
base.WndProc(ref m);
return;
case 0xe9:
this.DrawScrollBar(m.HWnd, this._maskControl.Handle, true, false);
base.WndProc(ref m);
return;
case 15:
if (!this._bPainting)
{
CCWin.Win32.Struct.PAINTSTRUCT ps = new CCWin.Win32.Struct.PAINTSTRUCT();
this._bPainting = true;
CCWin.Win32.NativeMethods.BeginPaint(m.HWnd, ref ps);
this.DrawScrollBar(m.HWnd, this._maskControl.Handle);
CCWin.Win32.NativeMethods.ValidateRect(m.HWnd, ref ps.rcPaint);
CCWin.Win32.NativeMethods.EndPaint(m.HWnd, ref ps);
this._bPainting = false;
m.Result = Result.TRUE;
}
else
{
base.WndProc(ref m);
}
return;
case 0x47:
{
CCWin.Win32.Struct.WINDOWPOS pos = (CCWin.Win32.Struct.WINDOWPOS) Marshal.PtrToStructure(m.LParam, typeof(CCWin.Win32.Struct.WINDOWPOS));
bool hide = (pos.flags & 0x80) != 0;
bool show = (pos.flags & 0x40) != 0;
if (hide)
{
this._maskControl.SetVisibale(false);
}
else if (show)
{
this._maskControl.SetVisibale(true);
}
this._maskControl.CheckBounds(m.HWnd);
base.WndProc(ref m);
return;
}
case 0x7d:
this.DrawScrollBar(m.HWnd, this._maskControl.Handle, false, true);
base.WndProc(ref m);
return;
}
base.WndProc(ref m);
}
catch
{
}
}
protected override void WndProc(ref Message m)
{
try
{
switch (m.Msg)
{
case WM.WM_PAINT:
if (!_bPainting)
{
PAINTSTRUCT ps = new PAINTSTRUCT();
_bPainting = true;
NativeMethods.BeginPaint(m.HWnd, ref ps);
DrawScrollBar(m.HWnd, _maskControl.Handle);
NativeMethods.ValidateRect(m.HWnd, ref ps.rcPaint);
NativeMethods.EndPaint(m.HWnd, ref ps);
_bPainting = false;
m.Result = Result.TRUE;
}
else
{
base.WndProc(ref m);
}
break;
case SBM.SBM_SETSCROLLINFO:
DrawScrollBar(m.HWnd, _maskControl.Handle, true, false);
base.WndProc(ref m);
break;
case WM.WM_STYLECHANGED:
DrawScrollBar(m.HWnd, _maskControl.Handle, false, true);
base.WndProc(ref m);
break;
case WM.WM_LBUTTONDOWN:
_lastMouseDownHistTest = ScrollBarHitTest(m.HWnd);
DrawScrollBar(m.HWnd, _maskControl.Handle);
base.WndProc(ref m);
break;
case WM.WM_LBUTTONUP:
case WM.WM_MOUSEMOVE:
DrawScrollBar(m.HWnd, _maskControl.Handle);
base.WndProc(ref m);
break;
case WM.WM_MOUSELEAVE:
DrawScrollBar(m.HWnd, _maskControl.Handle);
base.WndProc(ref m);
break;
case WM.WM_WINDOWPOSCHANGED:
WINDOWPOS pos = (WINDOWPOS)Marshal.PtrToStructure(
m.LParam, typeof(WINDOWPOS));
bool hide = (pos.flags & SWP.SWP_HIDEWINDOW) != 0;
bool show = (pos.flags & SWP.SWP_SHOWWINDOW) != 0;
if (hide)
{
_maskControl.SetVisibale(false);
}
else if (show)
{
_maskControl.SetVisibale(true);
}
_maskControl.CheckBounds(m.HWnd);
base.WndProc(ref m);
break;
default:
base.WndProc(ref m);
break;
}
}
catch
{
}
}