protected virtual void OnWindowPosChanging(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)");
WINDOWPOS wndPos = (WINDOWPOS)m.GetLParam(typeof(WINDOWPOS));
Rectangle bounds = Window.GetBounds(m.HWnd);
if (
Window.GetState(m.HWnd) == FormWindowState.Minimized ||
_shouldReduceBounds
)
{
int width = wndPos.width;
int height = wndPos.height;
if (width != bounds.Width || height != bounds.Height)
{
this.AdjustBounds(m.HWnd, ref width, ref height);
}
wndPos.width = width;
wndPos.height = height;
_shouldReduceBounds = true;
}
Marshal.StructureToPtr(wndPos, m.LParam, false);
}
protected virtual void OnWmNcPaint(ref Message m, NuGenWndProcDelegate baseWndProc)
{
Debug.Assert(m != null, "m != null");
Debug.Assert(baseWndProc != null, "baseWndProc != null");
m.Result = Common.FALSE;
}
protected virtual void OnNonDocumented(ref Message m, NuGenWndProcDelegate baseWndProc)
{
/*
* Should ignore this non-documented message. Otherwise, caption buttons will appear
* under certain circumstances.
*/
return;
}
protected virtual void OnWmSetText(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);
User32.InvalidateRect(m.HWnd, IntPtr.Zero, true);
}
protected virtual void OnWmWindowPosChanged(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);
FormWindowState state = Window.GetState(m.HWnd);
if (
Window.GetState(m.HWnd) == FormWindowState.Normal
)
{
_shouldReduceBounds = false;
baseWndProc(ref m);
return;
}
_shouldReduceBounds = true;
baseWndProc(ref m);
_shouldReduceBounds = true;
}
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);
}
}
protected virtual void OnWmLButtonClick(ref Message m, NuGenWndProcDelegate baseWndProc)
{
}
protected void WmHandler2(ref Message m, NuGenWndProcDelegate baseWndProc)
{
_wmHandler2InvokeCount.Inc();
}
protected virtual void OnWindowPosChanging(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)");
WINDOWPOS wndPos = (WINDOWPOS)m.GetLParam(typeof(WINDOWPOS));
Rectangle bounds = Window.GetBounds(m.HWnd);
if (
Window.GetState(m.HWnd) == FormWindowState.Minimized
|| _shouldReduceBounds
)
{
int width = wndPos.width;
int height = wndPos.height;
if (width != bounds.Width || height != bounds.Height)
{
this.AdjustBounds(m.HWnd, ref width, ref height);
}
wndPos.width = width;
wndPos.height = height;
_shouldReduceBounds = true;
}
Marshal.StructureToPtr(wndPos, m.LParam, false);
}
protected virtual void OnWmSetText(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);
User32.InvalidateRect(m.HWnd, IntPtr.Zero, true);
}
protected virtual void OnWmNcHitTest(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)");
Point testPoint = NuGenControlPaint.BuildMousePos(m.LParam);
User32.ScreenToClient(m.HWnd, ref testPoint);
int largeOffset = 4;
int smallOffset = 1;
Rectangle bounds = Window.GetBounds(m.HWnd);
Rectangle testRect = Rectangle.Empty;
if (this.IsSizable(m.HWnd))
{
testRect = new Rectangle(
0,
0,
bounds.Width,
largeOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTTOP);
return;
}
testRect = new Rectangle(
0,
bounds.Height - largeOffset,
bounds.Width,
largeOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTBOTTOM);
return;
}
if (Window.IsRightToLeft(m.HWnd))
{
testRect = new Rectangle(
bounds.Width - this.FormProperties.TopRightCornerSize,
0,
this.FormProperties.TopRightCornerSize + smallOffset,
this.FormProperties.TopRightCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTTOPLEFT);
return;
}
testRect = new Rectangle(
0,
0,
this.FormProperties.TopLeftCornerSize + smallOffset,
this.FormProperties.TopLeftCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTTOPRIGHT);
return;
}
testRect = new Rectangle(
bounds.Width - this.FormProperties.BottomRightCornerSize,
bounds.Height - this.FormProperties.BottomRightCornerSize,
this.FormProperties.BottomRightCornerSize + smallOffset,
this.FormProperties.BottomRightCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTBOTTOMLEFT);
return;
}
testRect = new Rectangle(
0,
bounds.Height - this.FormProperties.BottomLeftCornerSize,
this.FormProperties.BottomLeftCornerSize + smallOffset,
this.FormProperties.BottomLeftCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTBOTTOMRIGHT);
return;
}
testRect = new Rectangle(
bounds.Width - largeOffset,
0,
largeOffset,
bounds.Height
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTLEFT);
return;
}
testRect = new Rectangle(0, 0, largeOffset, bounds.Height);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTRIGHT);
return;
}
}
else
{
testRect = new Rectangle(
0,
0,
this.FormProperties.TopLeftCornerSize + smallOffset,
this.FormProperties.TopLeftCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTTOPLEFT);
return;
}
testRect = new Rectangle(
bounds.Width - this.FormProperties.TopRightCornerSize,
0,
this.FormProperties.TopRightCornerSize + smallOffset,
this.FormProperties.TopRightCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTTOPRIGHT);
return;
}
testRect = new Rectangle(
0,
bounds.Height - this.FormProperties.BottomLeftCornerSize,
this.FormProperties.BottomLeftCornerSize + smallOffset,
this.FormProperties.BottomLeftCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTBOTTOMLEFT);
return;
}
testRect = new Rectangle(
bounds.Width - this.FormProperties.BottomLeftCornerSize,
bounds.Height - this.FormProperties.BottomRightCornerSize,
this.FormProperties.BottomRightCornerSize + smallOffset,
this.FormProperties.BottomRightCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTBOTTOMRIGHT);
return;
}
testRect = new Rectangle(
0,
0,
largeOffset,
bounds.Height
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTLEFT);
return;
}
testRect = new Rectangle(
bounds.Width - largeOffset,
0,
largeOffset,
bounds.Height
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTRIGHT);
return;
}
}
}
// HACK: For testing purposes only.
m.Result = (IntPtr)WinUser.HTCAPTION;
}
protected virtual void OnWmNcActivate(ref Message m, NuGenWndProcDelegate baseWndProc)
{
m.Result = Common.TRUE;
}
protected virtual void OnWmNcHitTest(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)");
Point testPoint = NuGenControlPaint.BuildMousePos(m.LParam);
User32.ScreenToClient(m.HWnd, ref testPoint);
int largeOffset = 4;
int smallOffset = 1;
Rectangle bounds = Window.GetBounds(m.HWnd);
Rectangle testRect = Rectangle.Empty;
if (this.IsSizable(m.HWnd))
{
testRect = new Rectangle(
0,
0,
bounds.Width,
largeOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTTOP);
return;
}
testRect = new Rectangle(
0,
bounds.Height - largeOffset,
bounds.Width,
largeOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTBOTTOM);
return;
}
if (Window.IsRightToLeft(m.HWnd))
{
testRect = new Rectangle(
bounds.Width - this.FormProperties.TopRightCornerSize,
0,
this.FormProperties.TopRightCornerSize + smallOffset,
this.FormProperties.TopRightCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTTOPLEFT);
return;
}
testRect = new Rectangle(
0,
0,
this.FormProperties.TopLeftCornerSize + smallOffset,
this.FormProperties.TopLeftCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTTOPRIGHT);
return;
}
testRect = new Rectangle(
bounds.Width - this.FormProperties.BottomRightCornerSize,
bounds.Height - this.FormProperties.BottomRightCornerSize,
this.FormProperties.BottomRightCornerSize + smallOffset,
this.FormProperties.BottomRightCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTBOTTOMLEFT);
return;
}
testRect = new Rectangle(
0,
bounds.Height - this.FormProperties.BottomLeftCornerSize,
this.FormProperties.BottomLeftCornerSize + smallOffset,
this.FormProperties.BottomLeftCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTBOTTOMRIGHT);
return;
}
testRect = new Rectangle(
bounds.Width - largeOffset,
0,
largeOffset,
bounds.Height
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTLEFT);
return;
}
testRect = new Rectangle(0, 0, largeOffset, bounds.Height);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTRIGHT);
return;
}
}
else
{
testRect = new Rectangle(
0,
0,
this.FormProperties.TopLeftCornerSize + smallOffset,
this.FormProperties.TopLeftCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTTOPLEFT);
return;
}
testRect = new Rectangle(
bounds.Width - this.FormProperties.TopRightCornerSize,
0,
this.FormProperties.TopRightCornerSize + smallOffset,
this.FormProperties.TopRightCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTTOPRIGHT);
return;
}
testRect = new Rectangle(
0,
bounds.Height - this.FormProperties.BottomLeftCornerSize,
this.FormProperties.BottomLeftCornerSize + smallOffset,
this.FormProperties.BottomLeftCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTBOTTOMLEFT);
return;
}
testRect = new Rectangle(
bounds.Width - this.FormProperties.BottomLeftCornerSize,
bounds.Height - this.FormProperties.BottomRightCornerSize,
this.FormProperties.BottomRightCornerSize + smallOffset,
this.FormProperties.BottomRightCornerSize + smallOffset
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTBOTTOMRIGHT);
return;
}
testRect = new Rectangle(
0,
0,
largeOffset,
bounds.Height
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTLEFT);
return;
}
testRect = new Rectangle(
bounds.Width - largeOffset,
0,
largeOffset,
bounds.Height
);
if (testRect.Contains(testPoint))
{
m.Result = new IntPtr(WinUser.HTRIGHT);
return;
}
}
}
// HACK: For testing purposes only.
m.Result = (IntPtr)WinUser.HTCAPTION;
}
protected virtual void OnWmNcActivate(ref Message m, NuGenWndProcDelegate baseWndProc)
{
m.Result = Common.TRUE;
}
protected virtual void OnWmEraseBkgnd(ref Message m, NuGenWndProcDelegate baseWndProc)
{
m.Result = Common.TRUE; // Non-zero to erase background.
}
protected virtual void OnNonDocumented(ref Message m, NuGenWndProcDelegate baseWndProc)
{
/*
* Should ignore this non-documented message. Otherwise, caption buttons will appear
* under certain circumstances.
*/
return;
}
protected virtual void OnWmEraseBkgnd(ref Message m, NuGenWndProcDelegate baseWndProc)
{
m.Result = Common.TRUE; // Non-zero to erase background.
}
public FormSystemLayer(Form host, NuGenWndProcDelegate parentWndProc)
{
_host = host;
_parentWndProc = parentWndProc;
}
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);
}
}
public FormSystemLayer(Form host, NuGenWndProcDelegate parentWndProc)
{
_host = host;
_parentWndProc = parentWndProc;
}
protected virtual void OnWmNcPaint(ref Message m, NuGenWndProcDelegate baseWndProc)
{
Debug.Assert(m != null, "m != null");
Debug.Assert(baseWndProc != null, "baseWndProc != null");
m.Result = Common.FALSE;
}
private void StubWmHandler2(ref Message m, NuGenWndProcDelegate baseWndProc)
{
}
protected virtual void OnWmWindowPosChanged(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);
FormWindowState state = Window.GetState(m.HWnd);
if (
Window.GetState(m.HWnd) == FormWindowState.Normal
)
{
_shouldReduceBounds = false;
baseWndProc(ref m);
return;
}
_shouldReduceBounds = true;
baseWndProc(ref m);
_shouldReduceBounds = true;
}
protected void WmHandler2(ref Message m, NuGenWndProcDelegate baseWndProc)
{
_wmHandler2InvokeCount.Inc();
}
private void StubWmHandler2(ref Message m, NuGenWndProcDelegate baseWndProc)
{
}
protected virtual void OnWmPaint(ref Message m, NuGenWndProcDelegate baseWndProc)
{
}
protected virtual void OnWmPaint(ref Message m, NuGenWndProcDelegate baseWndProc)
{
}
protected virtual void OnWmLButtonClick(ref Message m, NuGenWndProcDelegate baseWndProc)
{
}
private void OnLButtonDown(ref Message m, NuGenWndProcDelegate baseWndProc)
{
_onLButtonDownInvokeCount.Inc();
}
private void OnLButtonDown(ref Message m, NuGenWndProcDelegate baseWndProc)
{
_onLButtonDownInvokeCount.Inc();
}
