protected override void DefWndProc(ref Message m)
{
switch (m.Msg)
{
case WM_COPYDATA:
COPYDATASTRUCT myStr = new COPYDATASTRUCT();
Type myType = myStr.GetType();
myStr = (COPYDATASTRUCT)m.GetLParam(myType); //m中获取LParam参数以myType类型的方式，让后转换问结构体。
if (myStr.lpData != null)
{
MainUrl = myStr.lpData;
changeImage(myStr.lpData);
}
break;
case 0x0083:
if (Convert.ToBoolean(m.WParam.ToInt32()))
{
NCCALCSIZE_PARAMS t = (NCCALCSIZE_PARAMS)m.GetLParam(typeof(NCCALCSIZE_PARAMS));
int CaptionHeight = GetSystemMetrics(4);
int Border3DWidth = System.Windows.Forms.SystemInformation.Border3DSize.Width;
//这里使用FW或者API都可以取到窗体的相关属性
int BorderWidth = System.Windows.Forms.SystemInformation.BorderSize.Width;
//尝试过了，只有修改RECT[0]才有效果撒…
Graphics currentGraphics = Graphics.FromHwnd(this.Handle);
double dpixRatio = currentGraphics.DpiX / 96; //获取屏幕DPI放大倍数
int x = t.rect0.top - this.Height;
t.rect0.top = t.rect0.top - (CaptionHeight) - (int)((double)7 * dpixRatio) - 1;
Marshal.StructureToPtr(t, m.LParam, false); // 结构体转指针
// base.WndProc(ref m);
//t.rect0.top = t.rect0.top - CaptionHeight - Border3DWidth - BorderWidth - 5;
//t.rect0.top = t.rect0.top - 35;
//t.rect0.left = t.rect0.left ;
//t.rect0.right = t.rect0.right;
//59d8d69e44858dad3d90875bb8d5e097
//t.rect0.bottom = t.rect0.bottom ;
}
break;
default:
break;
}
base.DefWndProc(ref m);
}
protected override void WndProc(ref Message m)
{
if (!VisualStyleRenderer.IsSupported || !_aeroEnabled)
{
base.WndProc(ref m);
return;
}
int WM_NCCALCSIZE = 0x83;
IntPtr result;
int dwmHandled = DwmDefWindowProc(m.HWnd, m.Msg, m.WParam, m.LParam, out result);
if (dwmHandled == 1)
{
m.Result = result;
return;
}
if (m.Msg == WM_NCCALCSIZE && (int)m.WParam == 1)
{
NCCALCSIZE_PARAMS nccsp = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(NCCALCSIZE_PARAMS));
// Adjust (shrink) the client rectangle to accommodate the border:
nccsp.rect0.Top += 0;
nccsp.rect0.Bottom += 0;
nccsp.rect0.Left += 0;
nccsp.rect0.Right += 0;
if (!_setMargins)
{
//Set what client area would be for passing to DwmExtendIntoClientArea
_dwmMargins.cyTopHeight = nccsp.rect2.Top - nccsp.rect1.Top;
_dwmMargins.cxLeftWidth = nccsp.rect2.Left - nccsp.rect1.Left;
_dwmMargins.cyBottomHeight = _buttonSize.Height + 2;
_dwmMargins.cxRightWidth = nccsp.rect1.Right - nccsp.rect2.Right;
_setMargins = true;
}
Marshal.StructureToPtr(nccsp, m.LParam, false);
m.Result = IntPtr.Zero;
}
else
{
base.WndProc(ref m);
}
}
/// <summary>
/// WNDs the proc.
/// </summary>
/// <param name="m">The Windows <see cref="T:System.Windows.Forms.Message" /> to process.</param>
protected override void WndProc(ref Message m)
{
int WM_NCCALCSIZE = 0x83;
int WM_NCHITTEST = 0x84;
IntPtr result = default(IntPtr);
int dwmHandled = Window.DwmDefWindowProc(m.HWnd, m.Msg, m.WParam, m.LParam, out result);
if (dwmHandled == 1)
{
m.Result = result;
return;
}
if (m.Msg == WM_NCCALCSIZE && m.WParam.ToInt32() == 1)
{
NCCALCSIZE_PARAMS nccsp = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(NCCALCSIZE_PARAMS));
// Adjust (shrink) the client rectangle to accommodate the border:
nccsp.rect0.Top += 0;
nccsp.rect0.Bottom += 0;
nccsp.rect0.Left += 0;
nccsp.rect0.Right += 0;
if (!_marginOk)
{
//Set what client area would be for passing to DwmExtendIntoClientArea.
//Also remember that at least one of these values NEEDS TO BE > 1, else
//it won't work.
_dwmMargins.cyTopHeight = 0;
_dwmMargins.cxLeftWidth = 0;
_dwmMargins.cyBottomHeight = 3;
_dwmMargins.cxRightWidth = 0;
_marginOk = true;
}
Marshal.StructureToPtr(nccsp, m.LParam, false);
m.Result = IntPtr.Zero;
}
else if (m.Msg == WM_NCHITTEST && m.Result.ToInt32() == 0)
{
m.Result = HitTestNCA(m.HWnd, m.WParam, m.LParam);
}
else
{
base.WndProc(ref m);
}
}
protected override void WndProc(ref System.Windows.Forms.Message m)
{
const int WM_NCPAINT = 0x85;
switch (m.Msg)
{
case WM_NCPAINT:
base.WndProc(ref m);
if (_rectangeUpdated)
{
IntPtr hdc = GetWindowDC(m.HWnd);
if ((int)hdc != 0)
{
Graphics g = Graphics.FromHdc(hdc);
g.DrawImage(Properties.Resources.Welcome_Scan, _rectange);
g.DrawLine(new Pen(Color.Blue), new Point(1, 1), new Point(50, 50));
g.Flush();
ReleaseDC(m.HWnd, hdc);
_rectangeUpdated = false;
}
}
break;
case WM_NCCALCSIZE:
{
base.WndProc(ref m);
if (m.WParam != IntPtr.Zero && _titleHight != 0)
{
if (m.HWnd == this.Handle)
{
NCCALCSIZE_PARAMS rcsize = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(NCCALCSIZE_PARAMS));
_rectange = new Rectangle(_borderWidth, _titleHight, rcsize.rcNewWindow.right - rcsize.rcNewWindow.left, rcsize.rcNewWindow.bottom - rcsize.rcNewWindow.top);
_rectangeUpdated = true;
}
}
m.Result = new IntPtr(1);
}
break;
default:
base.WndProc(ref m);
break;
}
}
public static void ChangeClientRectalgle(ref Message message, Padding padding)
{
if (message.Msg == WindowMessage.WM_NCCALCSIZE)
{
if (message.WParam != IntPtr.Zero)
{
NCCALCSIZE_PARAMS rcsize = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(message.LParam, typeof(NCCALCSIZE_PARAMS));
AdjustClientRect(ref rcsize.rcNewWindow, padding);
Marshal.StructureToPtr(rcsize, message.LParam, false);
}
else
{
RECT rcsize = (RECT)Marshal.PtrToStructure(message.LParam, typeof(RECT));
AdjustClientRect(ref rcsize, padding);
Marshal.StructureToPtr(rcsize, message.LParam, false);
}
message.Result = new IntPtr(1);
}
}
static void HandleNcCalcSize(IntPtr hwnd, IntPtr wParam, IntPtr lParam)
{
if (wParam == BasicValues.TRUE)
{
var wpl = default(WINDOWPLACEMENT);
wpl.length = (uint)Marshal.SizeOf(typeof(WINDOWPLACEMENT));
if (User32.GetWindowPlacement(hwnd, ref wpl))
{
// detect if maximizd and set to workspace remove padding
if (wpl.showCmd == ShowWindowOption.SW_MAXIMIZE)
{
// in multi-monitor case where app is minimized to a monitor on the right/bottom
// the MonitorFromWindow will incorrectly return the leftmost monitor due to the minimized
// window being set to the far left, so this routine now uses the proposed rect to correctly
// identify the real nearest monitor to calc the nc size.
NCCALCSIZE_PARAMS para = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(lParam, typeof(NCCALCSIZE_PARAMS));
var windowRect = para.rectProposed;
IntPtr hMonitor = User32.MonitorFromRect(ref windowRect, MonitorOption.MONITOR_DEFAULTTONEAREST);// MonitorFromWindow(hWnd, 2);
if (hMonitor != IntPtr.Zero)
{
MONITORINFO lpmi = new MONITORINFO();
lpmi.cbSize = (uint)Marshal.SizeOf(typeof(MONITORINFO));
if (User32.GetMonitorInfo(hMonitor, ref lpmi))
{
var workArea = lpmi.rcWork;
User32Ex.AdjustForAutoHideTaskbar(hMonitor, ref workArea);
Debug.WriteLine("NCCalc original = {0}x{1} @ {2}x{3}, new ={4}x{5} @ {6}x{7}",
para.rectProposed.Width, para.rectProposed.Height,
para.rectProposed.left, para.rectProposed.top,
workArea.Width, workArea.Height,
workArea.left, workArea.top);
para.rectProposed = workArea;
Marshal.StructureToPtr(para, lParam, true);
}
}
}
}
}
}
protected virtual void WmNcCalcSize(ref Message m)
{
if (m.WParam != IntPtr.Zero)
{
NCCALCSIZE_PARAMS ncsize = (NCCALCSIZE_PARAMS)m.GetLParam(
typeof(NCCALCSIZE_PARAMS));
ncsize.rgrc0.Left += _borderWidth;
ncsize.rgrc0.Right -= _borderWidth;
ncsize.rgrc0.Top += _borderWidth;
ncsize.rgrc0.Bottom -= _borderWidth;
Marshal.StructureToPtr(ncsize, m.LParam, false);
}
else
{
RECT rc = (RECT)m.GetLParam(typeof(RECT));
rc.Left += _borderWidth;
rc.Right -= _borderWidth;
rc.Top += _borderWidth;
rc.Bottom -= _borderWidth;
Marshal.StructureToPtr(rc, m.LParam, true);
}
m.Result = Result.FALSE;
}
protected virtual void OnWmNcCalcSize(ref Message m, NuGenWndProcDelegate baseWndProc)
{
Debug.Assert(m != null, "m != null");
Debug.Assert(baseWndProc != null, "baseWndProc != null");
Debug.Assert(User32.IsWindow(m.HWnd), "User32.IsWindow(m.HWnd)");
baseWndProc(ref m);
if (m.WParam == Common.FALSE)
{
RECT rect = (RECT)Marshal.PtrToStructure(m.LParam, typeof(RECT));
Marshal.StructureToPtr(
(RECT)this.GetClientRectangle(m.HWnd, (Rectangle)rect),
m.LParam,
false
);
m.Result = Common.FALSE;
}
else
{
NCCALCSIZE_PARAMS calcSizeParams = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(NCCALCSIZE_PARAMS));
WINDOWPOS wndPos = (WINDOWPOS)Marshal.PtrToStructure(calcSizeParams.lppos, typeof(WINDOWPOS));
RECT bufferRect = (RECT)this.GetClientRectangle(
m.HWnd,
new Rectangle(wndPos.x, wndPos.y, wndPos.width, wndPos.height)
);
calcSizeParams.rectProposed = bufferRect;
calcSizeParams.rectBeforeMove = bufferRect;
Marshal.StructureToPtr(calcSizeParams, m.LParam, false);
m.Result = new IntPtr(WinUser.WVR_VALIDRECTS);
}
}
/// <summary>
/// Calculates the size of the window frame and client area of the RichTextBox
/// </summary>
private void WmNcCalcSize(ref Message m)
{
// let the richtextbox control draw the scrollbar if necessary.
base.WndProc(ref m);
// we visual styles are not enabled and BorderStyle is not Fixed3D then we have nothing more to do.
if (!RenderWithVisualStyles())
{
return;
}
// contains detailed information about WM_NCCALCSIZE message
NCCALCSIZE_PARAMS par = new NCCALCSIZE_PARAMS();
// contains the window frame RECT
RECT windowRect;
if (m.WParam == IntPtr.Zero) // LParam points to a RECT struct
{
windowRect = (RECT)Marshal.PtrToStructure(m.LParam, typeof(RECT));
}
else // LParam points to a NCCALCSIZE_PARAMS struct
{
par = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(NCCALCSIZE_PARAMS));
windowRect = par.rgrc0;
}
// contains the client area of the control
RECT contentRect;
// get the DC
IntPtr hDC = GetWindowDC(Handle);
// open theme data
IntPtr hTheme = OpenThemeData(Handle, "EDIT");
// find out how much space the borders needs
if (GetThemeBackgroundContentRect(hTheme, hDC, EP_EDITTEXT, GetState()
, ref windowRect
, out contentRect) == S_OK)
{
// shrink the client area the make more space for containing text.
contentRect.Left += 1 + Padding.Left;
contentRect.Top += 1 + Padding.Top;
contentRect.Right -= 1 + Padding.Right;
contentRect.Bottom -= 1 + Padding.Bottom;
// remember the space of the borders
_borderRect = new RECT(contentRect.Left - windowRect.Left
, contentRect.Top - windowRect.Top
, windowRect.Right - contentRect.Right
, windowRect.Bottom - contentRect.Bottom);
// update LParam of the message with the new client area
if (m.WParam == IntPtr.Zero)
{
Marshal.StructureToPtr(contentRect, m.LParam, false);
}
else
{
par.rgrc0 = contentRect;
Marshal.StructureToPtr(par, m.LParam, false);
}
// force the control to redraw it´s client area
m.Result = new IntPtr(WVR_REDRAW);
}
// release theme data handle
CloseThemeData(hTheme);
// release DC
ReleaseDC(Handle, hDC);
}
protected void CustomProc(ref Message m)
{
switch (m.Msg)
{
case WM_PAINT:
{
PAINTSTRUCT ps = new PAINTSTRUCT();
if (!_bPainting)
{
_bPainting = true;
BeginPaint(m.HWnd, ref ps);
PaintThis(ps.hdc, ps.rcPaint);
EndPaint(m.HWnd, ref ps);
_bPainting = false;
base.WndProc(ref m);
}
else
{
base.WndProc(ref m);
}
break;
}
case WM_CREATE:
{
GetFrameSize();
FrameChanged();
m.Result = MSG_HANDLED;
base.WndProc(ref m);
break;
}
case WM_NCCALCSIZE:
{
if (m.WParam != IntPtr.Zero && m.Result == IntPtr.Zero)
{
if (_bExtendIntoFrame)
{
NCCALCSIZE_PARAMS nc = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(NCCALCSIZE_PARAMS));
nc.rect0.Top -= (_tMargins.cyTopHeight > CaptionHeight ? CaptionHeight : _tMargins.cyTopHeight);
nc.rect1 = nc.rect0;
Marshal.StructureToPtr(nc, m.LParam, false);
m.Result = (IntPtr)WVR_VALIDRECTS;
}
base.WndProc(ref m);
}
else
{
base.WndProc(ref m);
}
break;
}
case WM_SYSCOMMAND:
{
UInt32 param;
if (IntPtr.Size == 4)
{
param = (UInt32)(m.WParam.ToInt32());
}
else
{
param = (UInt32)(m.WParam.ToInt64());
}
if ((param & 0xFFF0) == SC_RESTORE)
{
this.Height = _iStoreHeight;
}
else if (this.WindowState == FormWindowState.Normal)
{
_iStoreHeight = this.Height;
}
base.WndProc(ref m);
break;
}
case WM_NCHITTEST:
{
if (m.Result == (IntPtr)HIT_CONSTANTS.HTNOWHERE)
{
IntPtr res = IntPtr.Zero;
if (DwmDefWindowProc(m.HWnd, (uint)m.Msg, m.WParam, m.LParam, ref res))
{
m.Result = res;
}
else
{
m.Result = (IntPtr)HitTest();
}
}
else
{
base.WndProc(ref m);
}
break;
}
case WM_DWMCOMPOSITIONCHANGED:
case WM_ACTIVATE:
{
DwmExtendFrameIntoClientArea(this.Handle, ref _tMargins);
m.Result = MSG_HANDLED;
base.WndProc(ref m);
break;
}
default:
{
base.WndProc(ref m);
break;
}
}
}
protected override void WndProc(ref Message m)
{
if (!isEnabled || IsDisposed)
{
base.WndProc(ref m);
return;
}
var msg = m.Msg;
switch (msg)
{
case (int)WindowsMessages.WM_NCACTIVATE:
if (m.WParam == Win32DataUtils.FALSE)
{
m.Result = MESSAGE_HANDLED;
}
User32.InvalidateWindow(parentWindowHWnd);
break;
case (int)WindowsMessages.WM_ACTIVATEAPP:
case (int)WindowsMessages.WM_MOVE:
base.WndProc(ref m);
User32.InvalidateWindow(parentWindowHWnd);
break;
case (int)WindowsMessages.WM_SIZE:
if (m.WParam == (IntPtr)0 && isMaximized)
{
isMaximized = false;
isMinimized = false;
//fix: In Win7 or higher, drag a window maximized will casue ncpaint error, so force window to calculate size of the nonclient area.
//fix: 在Win7系统下面如果窗体最大化，拖动窗体会造成非客户区绘制错误，因为没有触发WM_NCCALCSIZE，所以强制触发这个消息来使非客户去重新计算大小。
User32.SendFrameChanged(parentWindowHWnd);
}
if (m.WParam == (IntPtr)2)
{
isMaximized = true;
isMinimized = false;
User32.SendFrameChanged(parentWindowHWnd);
}
//User32.InvalidateWindow(parentWindowHWnd);
base.WndProc(ref m);
break;
case (int)WindowsMessages.WM_NCLBUTTONDOWN:
if (m.WParam == (IntPtr)2 && isMaximized)
{
User32.SendFrameChanged(parentWindowHWnd);
}
base.WndProc(ref m);
break;
case (int)WindowsMessages.WM_SYSCOMMAND:
if (m.WParam == (IntPtr)SystemCommandFlags.SC_MAXIMIZE)
{
isMaximized = true;
isMinimized = false;
}
else if (m.WParam == (IntPtr)SystemCommandFlags.SC_MINIMIZE)
{
isMinimized = true;
}
else if (m.WParam == (IntPtr)SystemCommandFlags.SC_RESTORE)
{
if (isMinimized)
{
isMinimized = false;
}
else
{
isMaximized = false;
}
}
base.WndProc(ref m);
break;
case (int)WindowsMessages.WM_NCCALCSIZE:
if (m.WParam != FALSE)
{
NCCALCSIZE_PARAMS ncsize = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(NCCALCSIZE_PARAMS));
WINDOWPOS pos = (WINDOWPOS)Marshal.PtrToStructure(ncsize.lppos, typeof(WINDOWPOS));
if (!isFrameSizeStored)
{
isFrameSizeStored = true;
ncCaptionHeight = ncsize.rectClientBeforeMove.top - ncsize.rectProposed.top;;
ncFrameWidth = ncsize.rectClientBeforeMove.left - ncsize.rectProposed.left;
ncFrameHeight = ncsize.rectBeforeMove.bottom - ncsize.rectClientBeforeMove.bottom;
}
RECT rc = ncsize.rectProposed;
ncsize.rectProposed = CalculateFrameSize(rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top);
ncsize.rectBeforeMove = ncsize.rectProposed;
Marshal.StructureToPtr(ncsize, m.LParam, false);
m.Result = WVR_VALIDRECTS;
User32.InvalidateWindow(parentWindowHWnd);
}
else
{
RECT rc = (RECT)m.GetLParam(typeof(RECT));
rc = CalculateFrameSize(rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top);
Marshal.StructureToPtr(rc, m.LParam, true);
m.Result = MESSAGE_PROCESS;
}
base.WndProc(ref m);
break;
case (int)WindowsMessages.WM_NCPAINT:
if (User32.IsWindowVisible(parentWindowHWnd))
{
m.Result = MESSAGE_HANDLED;
DrawNCArea(m.WParam);
}
break;
case (int)WindowsMessages.WM_NCUAHDRAWCAPTION:
case (int)WindowsMessages.WM_NCUAHDRAWFRAME:
User32.InvalidateWindow(parentWindowHWnd);
break;
default:
base.WndProc(ref m);
break;
}
}
private IntPtr GlowWindowHost_WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
//Prepare
RECT rect, clnRect;
//Handle message
switch ((WindowMessages)msg)
{
case WindowMessages.WM_MOVE:
if (User32.GetWindowRect(hwnd, out rect))
{
//Set position
LeftGlow_SizePos(leftHandle.Handle, rect);
TopGlow_SizePos(topHandle.Handle, rect);
RightGlow_SizePos(rightHandle.Handle, rect);
BottomGlow_SizePos(bottomHandle.Handle, rect);
}
break;
case WindowMessages.WM_SIZE:
if (User32.GetWindowRect(hwnd, out rect))
{
//Set visibility
int wmSizeWParam = wParam.ToInt32();
switch (wParam.ToInt32())
{
case 1:
case 2: BordersVisible = false; break;
case 0: BordersVisible = true; break;
}
//Set size
LeftGlow_SizePos(leftHandle.Handle, rect);
TopGlow_SizePos(topHandle.Handle, rect);
RightGlow_SizePos(rightHandle.Handle, rect);
BottomGlow_SizePos(bottomHandle.Handle, rect);
//Check
if (wmSizeWParam != this.wmSizeWParam)
{
this.wmSizeWParam = wmSizeWParam;
Point sz = new Point(lParam.ToInt32());
User32.SetWindowPos(hwnd, IntPtr.Zero, 0, 0, sz.X, sz.Y, 0x0020 | 0x0002);
}
}
break;
case WindowMessages.WM_NCCALCSIZE:
handled = true;
if (wParam != IntPtr.Zero) //check if wParam is TRUE
{
//Copy NCCALCSIZE_PARAMS from memory
NCCALCSIZE_PARAMS nccsp = Marshal.PtrToStructure <NCCALCSIZE_PARAMS>(lParam);
//Request client rectangle
clnRect = GlowWindowHost_RequestClientRectangle(nccsp.rgrc0);
nccsp.rgrc0 = clnRect;
//Copy NCCALCSIZE_PARAMS into memory
Marshal.StructureToPtr(nccsp, lParam, true);
}
else
{
//Get window rect from lParam
rect = Marshal.PtrToStructure <RECT>(lParam);
//Request client rectangle
clnRect = GlowWindowHost_RequestClientRectangle(rect);
//Copy RECT into memory
Marshal.StructureToPtr(clnRect, lParam, true);
}
//Return
return(IntPtr.Zero);
case WindowMessages.WM_NCHITTEST:
Point htPoint = new Point(lParam.ToInt32());
if (User32.GetWindowRect(hwnd, out RECT wndRect))
{
//Hit-test
DpiScale dpi = VisualTreeHelper.GetDpi(this);
HitTestResult result = VisualTreeHelper.HitTest(this, new WpfPoint(
(htPoint.X - wndRect.Left) * dpi.DpiScaleX,
(htPoint.Y - wndRect.Top) * dpi.DpiScaleY));
if (result?.VisualHit is UIElement element)
{
if (element.GetValue(NonClientActionProperty) is NonClientHitAction action)
{
//Set
handled = true;
//Handle action
switch (action)
{
case NonClientHitAction.Caption:
return((IntPtr)2);
case NonClientHitAction.Icon:
return((IntPtr)3);
case NonClientHitAction.Top:
return((IntPtr)12);
case NonClientHitAction.Left:
return((IntPtr)10);
case NonClientHitAction.Right:
return((IntPtr)11);
case NonClientHitAction.Bottom:
return((IntPtr)15);
case NonClientHitAction.TopLeft:
return((IntPtr)13);
case NonClientHitAction.TopRight:
return((IntPtr)14);
case NonClientHitAction.BottomLeft:
return((IntPtr)16);
case NonClientHitAction.BottomRight:
return((IntPtr)17);
default: return((IntPtr)1);
}
}
}
}
break;
case WindowMessages.WM_ACTIVATE:
bool isActive = true;
bool isGlowWindowActive = (lParam == leftHandle.Handle || lParam == topHandle.Handle || lParam == rightHandle.Handle || lParam == bottomHandle.Handle);
if (wParam == IntPtr.Zero && !isGlowWindowActive)
{
isActive = false;
}
//Check
if (isActive != this.isActive)
{
WpfColor color = new WpfColor();
if (isActive)
{
color = ActiveGlowColor;
}
else
{
color = InactiveGlowColor;
}
//Set icon
CurrentIcon = isActive ? ActiveIcon : InactiveIcon;
//Render
glowTextures.Render(Color.FromArgb(color.R, color.G, color.B));
//Re-draw edges
GlowWindow_DrawLayeredWindow(leftHandle.Handle);
GlowWindow_DrawLayeredWindow(topHandle.Handle);
GlowWindow_DrawLayeredWindow(rightHandle.Handle);
GlowWindow_DrawLayeredWindow(bottomHandle.Handle);
//Set
this.isActive = isActive;
InvalidateVisual();
}
break;
case WindowMessages.WM_DESTROY:
hostDictionary.Remove(hwnd); //Unregister
break;
}
//Return
return(IntPtr.Zero);
}
protected override void WndProc(ref Message m)
{
if (DesignMode)
{
base.WndProc(ref m);
return;
}
if (m.Msg == WM_NCCALCSIZE)
{
if (m.WParam.ToInt32() == 1)
{
MARGINS borderless = new MARGINS()
{
cxLeftWidth = 1, cxRightWidth = 1, cyBottomHeight = 1, cyTopHeight = 1
};
DwmExtendFrameIntoClientArea(Handle, ref borderless);
WINDOWPLACEMENT pl = new WINDOWPLACEMENT();
GetWindowPlacement(m.HWnd, ref pl);
if (pl.ShowCmd == ShowWindowCommands.Maximize)
{
NCCALCSIZE_PARAMS p = Marshal.PtrToStructure <NCCALCSIZE_PARAMS>(m.LParam);
p.rgrc[0].Left += 7;
p.rgrc[0].Right -= 8;
p.rgrc[0].Top += 7;
p.rgrc[0].Bottom -= 8;
Marshal.StructureToPtr(p, m.LParam, true);
}
}
m.Result = IntPtr.Zero;
return;
}
else if (m.Msg == WM_NCHITTEST)
{
Point mousePos = PointToClient(new Point((m.LParam.ToInt32() & 0xFFFF), (m.LParam.ToInt32() >> 16)));
foreach (CaptionButton b in CaptionButtons)
{
if (mousePos.X >= b.X && mousePos.X < b.X + b.Width && mousePos.Y >= b.Y && mousePos.Y < b.Y + b.Height)
{
m.Result = new IntPtr(b.HitTestCode);
return;
}
}
m.Result = new IntPtr(mousePos.X >= 0 && mousePos.X < Width && mousePos.Y >= 0 && mousePos.Y < Height ? HT_CAPTION : HT_NOWHERE);
if (SizeBorder && WindowState == FormWindowState.Normal)
{
int res = m.Result.ToInt32();
int col = 0;
if (mousePos.X >= ClientSize.Width - 5)
{
col = 2;
}
else if (mousePos.X > 5)
{
col = 1;
}
int row = 0;
if (mousePos.Y >= ClientSize.Height - 5)
{
row = 2;
}
else if (mousePos.Y > 5)
{
row = 1;
}
if (col == 0)
{
if (row == 0)
{
res = HT_TOPLEFT;
}
if (row == 1)
{
res = HT_LEFT;
}
if (row == 2)
{
res = HT_BOTTOMLEFT;
}
}
if (col == 1)
{
if (row == 0)
{
res = HT_TOP;
}
if (row == 2)
{
res = HT_BOTTOM;
}
}
if (col == 2)
{
if (row == 0)
{
res = HT_TOPRIGHT;
}
if (row == 1)
{
res = HT_RIGHT;
}
if (row == 2)
{
res = HT_BOTTOMRIGHT;
}
}
m.Result = new IntPtr(res);
}
return;
}
base.WndProc(ref m);
}
/// <summary>
/// </summary>
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case WinUser.WM_NCCALCSIZE:
{
if (m.WParam == IntPtr.Zero)
{
RECT rect = (RECT)m.GetLParam(typeof(RECT));
this.CalculateClientBounds(ref rect);
Marshal.StructureToPtr(rect, m.LParam, true);
}
else
{
NCCALCSIZE_PARAMS calc = (NCCALCSIZE_PARAMS)m.GetLParam(typeof(NCCALCSIZE_PARAMS));
this.CalculateClientBounds(ref calc.rectProposed);
Marshal.StructureToPtr(calc, m.LParam, true);
}
m.Result = new IntPtr(WinUser.WVR_REDRAW);
break;
}
case WinUser.WM_NCHITTEST:
{
/* Map all mouse messages to client area. */
m.Result = (IntPtr)WinUser.HTCLIENT;
return;
}
case WinUser.WM_NCPAINT:
{
base.DefWndProc(ref m);
IntPtr hDC = User32.GetWindowDC(m.HWnd);
if (hDC == IntPtr.Zero)
{
return;
}
RECT bounds = new RECT();
User32.GetWindowRect(m.HWnd, ref bounds);
if (bounds.Width < 1 || bounds.Height < 1)
{
return;
}
using (NuGenNativeGrfx grfx = new NuGenNativeGrfx(hDC, bounds.Size))
{
this.DrawHeader(grfx.Graphics, this.RectangleToClient(bounds));
grfx.DrawToTargetGraphics();
}
User32.ReleaseDC(m.HWnd, hDC);
m.Result = IntPtr.Zero;
return;
}
}
base.WndProc(ref m);
}
protected override void WndProc(ref Message m)
{
if (this.Owner.FormBorderStyle == System.Windows.Forms.FormBorderStyle.None)
{
this.Owner.DefWndProcInternal(ref m);
return;
}
switch (m.Msg)
{
#region WM_NCCALCSIZE (修改客户端区域)
case WM.WM_NCCALCSIZE:
if (m.WParam != IntPtr.Zero)
{
NCCALCSIZE_PARAMS rcsize = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(NCCALCSIZE_PARAMS));
rcsize.rcNewWindow.Left += (this.Owner.BorderWidthInternal - 8);
rcsize.rcNewWindow.Top += this.Owner.CaptionHeightInternal - SystemInformation.CaptionHeight - 6;
rcsize.rcNewWindow.Right -= (this.Owner.BorderWidthInternal - 8);
rcsize.rcNewWindow.Bottom -= (this.Owner.BorderWidthInternal - 8);
Marshal.StructureToPtr(rcsize, m.LParam, false);
}
m.Result = new IntPtr(1);
break;
#endregion
#region WM_NCLBUTTONDOWN (标题栏区域鼠标左键按下)
case WM.WM_NCLBUTTONDOWN:
WmCaptionMouseDown(ref m, MouseButtons.Left, 1);
this.stateMouseClick = true;
this.stateMouseDown = true;
this.stateMouseDownButton = MouseButtons.Left;
return;
#endregion
#region WM_NCRBUTTONDOWN (标题栏区域鼠标右键按下)
case WM.WM_NCRBUTTONDOWN:
WmCaptionMouseDown(ref m, MouseButtons.Right, 1);
this.stateMouseClick = true;
this.stateMouseDown = true;
this.stateMouseDownButton = MouseButtons.Left;
return;
#endregion
#region WM_NCMOUSEMOVE (标题栏区域鼠标移动)
case WM.WM_NCMOUSEMOVE:
if (stateMouseDown && MouseButtons == System.Windows.Forms.MouseButtons.None)
{
WmCaptionMouseUp(ref m, this.stateMouseDownButton, 1);
this.stateMouseDown = false;
}
else
{
WmCaptionMouseMove(ref m, MouseButtons, 0);
}
break;
#endregion
#region WM_NCLBUTTONUP (标题栏区域鼠标左键弹起)
case WM.WM_NCLBUTTONUP:
WmCaptionMouseUp(ref m, MouseButtons.Left, 1);
return;
#endregion
#region WM_NCRBUTTONUP (标题栏区域鼠标右键弹起)
case WM.WM_NCRBUTTONUP:
WmCaptionMouseUp(ref m, MouseButtons.Right, 1);
return;
#endregion
#region WM_NCLBUTTONDBLCLK (标题栏区域鼠标左键双击)
case WM.WM_NCLBUTTONDBLCLK:
WmCaptionMouseDown(ref m, MouseButtons.Left, 2);
this.stateMouseDoubleClick = true;
return;
#endregion
#region WM_NCRBUTTONDBLCLK (标题栏区域鼠标右键双击)
case WM.WM_NCRBUTTONDBLCLK:
WmCaptionMouseDown(ref m, MouseButtons.Right, 2);
this.stateMouseDoubleClick = true;
return;
#endregion
#region WM_NCMOUSELEAVE (鼠标离开)
case WM.WM_NCMOUSELEAVE:
if (!this.stateMouseDown)
{
if (this.DUIControlShare.MouseMoveDUIControl != null)
{
this.DUIControlShare.MouseMoveDUIControl.DoMouseLeave(EventArgs.Empty);
this.DUIControlShare.MouseMoveDUIControl = null;
}
this.stateMouseClick = false;
this.stateMouseDoubleClick = false;
}
break;
#endregion
#region WM_NCMOUSEHOVER (鼠标停留)
case WM.WM_NCMOUSEHOVER:
this.DoMouseHover(EventArgs.Empty);
return;
#endregion
#region WM_NCPAINT (标题栏绘制)
//case WM.WM_SETCURSOR:
case WM.WM_NCUAHDRAWCAPTION:
this.Invalidate();
return;
case WM.WM_NCACTIVATE:
this.Owner.DefWndProcInternal(ref m);
this.Invalidate();
return;
case WM.WM_NCPAINT:
this.Invalidate();
return;
#endregion
#region WM_SYSCOMMAND (系统命令，最大化最小化关闭之类的)
case WM.WM_SYSCOMMAND:
if (m.WParam.ToInt32() == SC.SC_RESTORE)
{
this.Owner.DoNormal();
return;
}
if (m.WParam.ToInt32() == SC.SC_MINIMIZE)
{
this.Owner.DoMinimize();
return;
}
if (m.WParam.ToInt32() == SC.SC_MAXIMIZE)
{
this.Owner.DoMaximize();
return;
}
if (m.WParam.ToInt32() == SC.SC_MOUSEMENU)
{
return;
}
break;
#endregion
}
//base.WndProc(ref m);
this.Owner.DefWndProcInternal(ref m);
}
private void WmNccalcsize(ref Message m)
{
// we visual styles are not enabled and BorderStyle is not Fixed3D then we have nothing more to do.
if (!UxThemeManager.VisualStylesEnabled())
{
return;
}
// contains detailed information about WM_NCCALCSIZE message
NCCALCSIZE_PARAMS par = new NCCALCSIZE_PARAMS();
// contains the window frame RECT
RECT windowRect;
if (m.WParam == IntPtr.Zero) // LParam points to a RECT struct
{
windowRect = (RECT)Marshal.PtrToStructure(m.LParam, typeof(RECT));
}
else // LParam points to a NCCALCSIZE_PARAMS struct
{
par = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(NCCALCSIZE_PARAMS));
windowRect = par.rgrc0;
}
// contains the client area of the control
RECT contentRect;
// get the DC
IntPtr hDC = Win32.GetWindowDC(this.Handle);
// find out how much space the borders needs
if (m_ThemeManager[this].GetThemeBackgroundContentRect(UxThemeElements.COMBOBOX, hDC, (int)ComboBoxPart.Border, (int)ComboBoxState.Normal, ref windowRect, out contentRect))
{
// shrink the client area the make more space for containing text.
contentRect.Inflate(-1, -1);
// remember the space of the borders
this.borderRect = new RECT(contentRect.Left - windowRect.Left
, contentRect.Top - windowRect.Top
, windowRect.Right - contentRect.Right
, windowRect.Bottom - contentRect.Bottom);
// update LParam of the message with the new client area
if (m.WParam == IntPtr.Zero)
{
Marshal.StructureToPtr(contentRect, m.LParam, false);
}
else
{
par.rgrc0 = contentRect;
Marshal.StructureToPtr(par, m.LParam, false);
}
// force the control to redraw it´s client area
m.Result = new IntPtr(0x200 | 0x100);
}
// release DC
Win32.ReleaseDC(this.Handle, hDC);
base.WndProc(ref m);
}
/// <summary>
/// Calculates the size of the window frame and client area of the RichTextBox
/// </summary>
private void WmNcCalcSize(ref Message m)
{
// let the richtextbox control draw the scrollbar if necessary.
base.WndProc(ref m);
// we visual styles are not enabled and BorderStyle is not Fixed3D then we have nothing more to do.
if (!RenderWithVisualStyles())
return;
// contains detailed information about WM_NCCALCSIZE message
NCCALCSIZE_PARAMS par = new NCCALCSIZE_PARAMS();
// contains the window frame RECT
RECT windowRect;
if (m.WParam == IntPtr.Zero) // LParam points to a RECT struct
{
windowRect = (RECT)Marshal.PtrToStructure(m.LParam, typeof(RECT));
}
else // LParam points to a NCCALCSIZE_PARAMS struct
{
par = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(NCCALCSIZE_PARAMS));
windowRect = par.rgrc0;
}
// contains the client area of the control
RECT contentRect;
// get the DC
IntPtr hDC = GetWindowDC(Handle);
// open theme data
IntPtr hTheme = OpenThemeData(Handle, "EDIT");
// find out how much space the borders needs
if (GetThemeBackgroundContentRect(hTheme, hDC, EP_EDITTEXT, GetState()
, ref windowRect
, out contentRect) == S_OK)
{
// shrink the client area the make more space for containing text.
contentRect.Left += 1 + Padding.Left;
contentRect.Top += 1 + Padding.Top;
contentRect.Right -= 1 + Padding.Right;
contentRect.Bottom -= 1 + Padding.Bottom;
// remember the space of the borders
_borderRect = new RECT(contentRect.Left - windowRect.Left
, contentRect.Top - windowRect.Top
, windowRect.Right - contentRect.Right
, windowRect.Bottom - contentRect.Bottom);
// update LParam of the message with the new client area
if (m.WParam == IntPtr.Zero)
{
Marshal.StructureToPtr(contentRect, m.LParam, false);
}
else
{
par.rgrc0 = contentRect;
Marshal.StructureToPtr(par, m.LParam, false);
}
// force the control to redraw it´s client area
m.Result = new IntPtr(WVR_REDRAW);
}
// release theme data handle
CloseThemeData(hTheme);
// release DC
ReleaseDC(Handle, hDC);
}
protected override void WndProc(ref Message m)
{
const uint WM_NCHITTEST = 0x0084;
const uint WM_MOUSEMOVE = 0x0200;
const uint HTLEFT = 10;
const uint HTRIGHT = 11;
const uint HTBOTTOMRIGHT = 17;
const uint HTBOTTOM = 15;
const uint HTBOTTOMLEFT = 16;
const uint HTTOP = 12;
const uint HTTOPLEFT = 13;
const uint HTTOPRIGHT = 14;
const int WM_NCLBUTTONDOWN = 0xA1;
const int HT_CAPTION = 0x2;
const int WM_NCCALCSIZE = 0x83;
const int RESIZE_HANDLE_SIZE = 10;
bool handled = false;
if (m.Msg == WM_NCHITTEST || m.Msg == WM_MOUSEMOVE)
{
Size formSize = this.Size;
Point screenPoint = new Point(m.LParam.ToInt32());
Point clientPoint = this.PointToClient(screenPoint);
Dictionary <uint, Rectangle> boxes = new Dictionary <uint, Rectangle>()
{
{ HTBOTTOMLEFT, new Rectangle(0, formSize.Height - RESIZE_HANDLE_SIZE, RESIZE_HANDLE_SIZE, RESIZE_HANDLE_SIZE) },
{ HTBOTTOM, new Rectangle(RESIZE_HANDLE_SIZE, formSize.Height - RESIZE_HANDLE_SIZE, formSize.Width - 2 * RESIZE_HANDLE_SIZE, RESIZE_HANDLE_SIZE) },
{ HTBOTTOMRIGHT, new Rectangle(formSize.Width - RESIZE_HANDLE_SIZE, formSize.Height - RESIZE_HANDLE_SIZE, RESIZE_HANDLE_SIZE, RESIZE_HANDLE_SIZE) },
{ HTRIGHT, new Rectangle(formSize.Width - RESIZE_HANDLE_SIZE, RESIZE_HANDLE_SIZE, RESIZE_HANDLE_SIZE, formSize.Height - 2 * RESIZE_HANDLE_SIZE) },
{ HTTOPRIGHT, new Rectangle(formSize.Width - RESIZE_HANDLE_SIZE, 0, RESIZE_HANDLE_SIZE, RESIZE_HANDLE_SIZE) },
{ HTTOP, new Rectangle(RESIZE_HANDLE_SIZE, 0, formSize.Width - 2 * RESIZE_HANDLE_SIZE, RESIZE_HANDLE_SIZE) },
{ HTTOPLEFT, new Rectangle(0, 0, RESIZE_HANDLE_SIZE, RESIZE_HANDLE_SIZE) },
{ HTLEFT, new Rectangle(0, RESIZE_HANDLE_SIZE, RESIZE_HANDLE_SIZE, formSize.Height - 2 * RESIZE_HANDLE_SIZE) }
};
foreach (KeyValuePair <uint, Rectangle> hitBox in boxes)
{
if (hitBox.Value.Contains(clientPoint))
{
m.Result = (IntPtr)hitBox.Key;
handled = true;
break;
}
}
}
if (m.Msg == WM_NCCALCSIZE)
{
if (m.WParam.Equals(IntPtr.Zero))
{
RECT rc = (RECT)m.GetLParam(typeof(RECT));
Rectangle r = rc.ToRectangle();
//r.Inflate(0, 0);
Marshal.StructureToPtr(new RECT(r), m.LParam, true);
}
else
{
NCCALCSIZE_PARAMS csp = (NCCALCSIZE_PARAMS)m.GetLParam(typeof(NCCALCSIZE_PARAMS));
Rectangle r = csp.rgrc0.ToRectangle();
//r.Inflate(0,0);
csp.rgrc0 = new RECT(r);
Marshal.StructureToPtr(csp, m.LParam, true);
}
m.Result = IntPtr.Zero;
handled = true;
}
if (!handled)
{
base.WndProc(ref m);
}
}
protected override void WndProc(ref Message m)
{
#region WndProc debug code
// Use the following code in debug mode to view the windows messages by name optionally excluding some:
#if DEBUG && SHOWMSGS
string s = MsgType.GetMessageName(m.Msg, false,
// Messages containing the following substrings will be ignored:
"WM_USER", "WM_REFLECT", "NOTIFY", "TIMER", "HIT", "MOUSE", "CURSOR", "FOCUS", "IME_", "_KEY", "_CHAR", "_GETDLG");
Debug.WriteLineIf(s.Length > 0, s);
#endif
#endregion WndProc debug code
switch (m.Msg)
{
#region case WM_NCCALCSIZE:
case (int)Win32Messages.WM_NCCALCSIZE:
#region Non-client area definition
/*
* The non-client area is the part of the window managed by the operating
* system and responsible for the appearance of borders, size-grippers and
* title-bars. This can be managed in Windows Forms by overriding WndProc and
* handling the WM_NCCALCSIZE, WM_NCPAINT, etc. message family.
*/
#endregion Non-client area definition
#region WM_NCCALCSIZE message parameters
/*
* Parameters:
*
* wParam
* If wParam is TRUE, it specifies that the application should indicate which part of the
* client area contains valid information. The system copies the valid information to the
* specified area within the new client area.
*
* If wParam is FALSE, the application does not need to indicate the valid part of the client area.
*
* lParam
* If wParam is TRUE, lParam points to an NCCALCSIZE_PARAMS structure that contains
* information an application can use to calculate the new size and position of the client rectangle.
* If wParam is FALSE, lParam points to a RECT structure. On entry, the structure
* contains the proposed window rectangle for the window. On exit, the structure should
* contain the screen coordinates of the corresponding window client area.
*
* Return Value
* If the wParam parameter is FALSE, the application should return zero.
*
* If wParam is TRUE and an application returns zero, the old client area is preserved and
* is aligned with the upper-left corner of the new client area.
*/
#region Return values
/*
* If wParam is TRUE, the application should return zero or a combination of the following values:
* WVR_ALIGNTOP Specifies that the client area of the window is to be preserved and aligned with
* the top of the new position of the window. For example, to align the client area
* to the upper-left corner, return the WVR_ALIGNTOP and WVR_ALIGNLEFT values.
* WVR_ALIGNRIGHT Specifies that the client area of the window is to be preserved and aligned with
* the right side of the new position of the window. For example, to align the client
* area to the lower-right corner, return the WVR_ALIGNRIGHT and WVR_ALIGNBOTTOM values.
* WVR_ALIGNLEFT Specifies that the client area of the window is to be preserved and aligned with
* the left side of the new position of the window. For example, to align the client
* area to the lower-left corner, return the WVR_ALIGNLEFT and WVR_ALIGNBOTTOM values.
* WVR_ALIGNBOTTOM Specifies that the client area of the window is to be preserved and aligned with
* the bottom of the new position of the window. For example, to align the client area
* to the top-left corner, return the WVR_ALIGNTOP and WVR_ALIGNLEFT values.
* WVR_HREDRAW Used in combination with any other values, except WVR_VALIDRECTS, causes the window
* to be completely redrawn if the client rectangle changes size horizontally. This
* value is similar to CS_HREDRAW class style
* WVR_VREDRAW Used in combination with any other values, except WVR_VALIDRECTS, causes the window
* to be completely redrawn if the client rectangle changes size vertically. This value
* is similar to CS_VREDRAW class style
* WVR_REDRAW This value causes the entire window to be redrawn. It is a combination of WVR_HREDRAW
* and WVR_VREDRAW values.
* WVR_VALIDRECTS This value indicates that, upon return from WM_NCCALCSIZE, the rectangles specified
* by the rgrc[1] and rgrc[2] members of the NCCALCSIZE_PARAMS structure contain valid
* destination and source area rectangles, respectively. The system combines these
* rectangles to calculate the area of the window to be preserved. The system copies
* any part of the window image that is within the source rectangle and clips the image
* to the destination rectangle. Both rectangles are in parent-relative or screen-relative
* coordinates. This flag cannot be combined with any other flags.
* This return value allows an application to implement more elaborate client-area
* preservation strategies, such as centering or preserving a subset of the client area.
*/
#endregion Return values
#endregion WM_NCCALCSIZE message parameters
int adjustment = this.BorderStyle == BorderStyle.FixedSingle ? 2 : 0;
if ((int)m.WParam == 0) // False
{
#region Marshal.PtrToStructure summary
/* Marshal.PtrToStructure
* Summary:
* Marshals data from an unmanaged block of memory to a newly allocated managed
* object of the specified type.
*
* Parameters:
* ptr: A pointer to an unmanaged block of memory.
* structureType:
* The System.Type of object to be created.
* This type object must represent a formatted class or a structure.
*
* Returns:
* A managed object containing the data pointed to by the ptr parameter.
*/
#endregion Marshal.PtrToStructure summary
RECT rect = (RECT)Marshal.PtrToStructure(m.LParam, typeof(RECT));
// Adjust (shrink) the client rectangle to accommodate the border:
rect.Top += m_BorderWidth - adjustment;
rect.Bottom -= m_BorderWidth - adjustment;
rect.Left += m_BorderWidth - adjustment;
rect.Right -= m_BorderWidth - adjustment;
#region Marshal.StructureToPtr summary
/* Marshal.StructureToPtr
* Summary:
* Marshals data from a managed object to an unmanaged block of memory.
*
* Parameters:
* ptr:
* A pointer to an unmanaged block of memory, which must be allocated before
* this method is called.
* structure:
* A managed object holding the data to be marshaled.
* This object must be an instance of a formatted class.
* fDeleteOld:
* true to have the System.Runtime.InteropServices.Marshal.DestroyStructure
* (System.IntPtr,System.Type) method called on the ptr parameter before
* this method executes. Note that passing false can lead to a memory leak.
*/
#endregion Marshal.StructureToPtr summary
Marshal.StructureToPtr(rect, m.LParam, false);
m.Result = IntPtr.Zero;
}
else if ((int)m.WParam == 1) // True
{
#region Marshal.PtrToStructure summary
/* Marshal.PtrToStructure
* Summary:
* Marshals data from an unmanaged block of memory to a newly allocated managed
* object of the specified type.
*
* Parameters:
* ptr: A pointer to an unmanaged block of memory.
* structureType:
* The System.Type of object to be created.
* This type object must represent a formatted class or a structure.
*
* Returns:
* A managed object containing the data pointed to by the ptr parameter.
*/
#endregion Marshal.PtrToStructure summary
nccsp = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(NCCALCSIZE_PARAMS));
// Adjust (shrink) the client rectangle to accommodate the border:
nccsp.rect0.Top += m_BorderWidth - adjustment;
nccsp.rect0.Bottom -= m_BorderWidth - adjustment;
nccsp.rect0.Left += m_BorderWidth - adjustment;
nccsp.rect0.Right -= m_BorderWidth - adjustment;
#region Marshal.StructureToPtr summary
/* Marshal.StructureToPtr
* Summary:
* Marshals data from a managed object to an unmanaged block of memory.
*
* Parameters:
* ptr:
* A pointer to an unmanaged block of memory, which must be allocated before
* this method is called.
* structure:
* A managed object holding the data to be marshaled.
* This object must be an instance of a formatted class.
* fDeleteOld:
* true to have the System.Runtime.InteropServices.Marshal.DestroyStructure
* (System.IntPtr,System.Type) method called on the ptr parameter before
* this method executes. Note that passing false can lead to a memory leak.
*/
#endregion Marshal.StructureToPtr summary
Marshal.StructureToPtr(nccsp, m.LParam, false);
m.Result = IntPtr.Zero;
}
base.WndProc(ref m);
break;
#endregion case WM_NCCALCSIZE
case (int)Win32Messages.WM_PAINT:
// Hide the caret if the text is readonly:
hideCaret = this.ReadOnly;
base.WndProc(ref m);
break;
case (int)Win32Messages.WM_NCPAINT:
base.WndProc(ref m);
doPaint = true;
#region DEBUG paintCount++
#if DEBUG
paintCount++;
#endif
#endregion DEBUG paintCount++
break;
#region Deprecated code
// This message is manually posted when the control is resized. It is necessary to "redraw" the
// control whenever this occurs.
//case REDRAW_MSG_NUMBER:
// base.WndProc(ref m);
// Redraw();
// break;
#endregion Deprecated code
default:
base.WndProc(ref m);
break;
}
}
