|
private AdjustWindowRectEx ( |
||
| lpRect | ||
| dwStyle | WindowStyle | |
| bMenu | bool | |
| dwExStyle | ExtendedWindowStyle | |
| return | bool | |
IntPtr CreateWindow(int x, int y, int width, int height, string title, GameWindowFlags options, DisplayDevice device, IntPtr parentHandle)
{
// Use win32 to create the native window.
// Keep in mind that some construction code runs in the WM_CREATE message handler.
// The style of a parent window is different than that of a child window.
// Note: the child window should always be visible, even if the parent isn't.
WindowStyle style = 0;
ExtendedWindowStyle ex_style = 0;
if (parentHandle == IntPtr.Zero)
{
style |= WindowStyle.OverlappedWindow | WindowStyle.ClipChildren;
ex_style = ParentStyleEx;
}
else
{
style |= WindowStyle.Visible | WindowStyle.Child | WindowStyle.ClipSiblings;
ex_style = ChildStyleEx;
}
// Find out the final window rectangle, after the WM has added its chrome (titlebar, sidebars etc).
Win32Rectangle rect = new Win32Rectangle();
rect.left = x; rect.top = y; rect.right = x + width; rect.bottom = y + height;
Functions.AdjustWindowRectEx(ref rect, style, false, ex_style);
// Create the window class that we will use for this window.
// The current approach is to register a new class for each top-level WinGLWindow we create.
if (!class_registered)
{
ExtendedWindowClass wc = new ExtendedWindowClass();
wc.Size = ExtendedWindowClass.SizeInBytes;
wc.Style = DefaultClassStyle;
wc.Instance = Instance;
wc.WndProc = WindowProcedureDelegate;
wc.ClassName = ClassName;
wc.Icon = Icon != null ? Icon.Handle : IntPtr.Zero;
#warning "This seems to resize one of the 'large' icons, rather than using a small icon directly (multi-icon files). Investigate!"
wc.IconSm = Icon != null ? new Icon(Icon, 16, 16).Handle : IntPtr.Zero;
wc.Cursor = Functions.LoadCursor(CursorName.Arrow);
ushort atom = Functions.RegisterClassEx(ref wc);
if (atom == 0)
{
throw new PlatformException(String.Format("Failed to register window class. Error: {0}", Marshal.GetLastWin32Error()));
}
class_registered = true;
}
IntPtr window_name = Marshal.StringToHGlobalAuto(title);
IntPtr handle = Functions.CreateWindowEx(
ex_style, ClassName, window_name, style,
rect.left, rect.top, rect.Width, rect.Height,
parentHandle, IntPtr.Zero, Instance, IntPtr.Zero);
if (handle == IntPtr.Zero)
{
throw new PlatformException(String.Format("Failed to create window. Error: {0}", Marshal.GetLastWin32Error()));
}
return(handle);
}
private IntPtr CreateWindow(int x, int y, int width, int height, string title, GameWindowFlags options, DisplayDevice device, IntPtr parentHandle)
{
WindowStyle windowStyle1 = WindowStyle.Overlapped;
WindowStyle windowStyle2;
ExtendedWindowStyle extendedWindowStyle;
if (parentHandle == IntPtr.Zero)
{
windowStyle2 = windowStyle1 | WindowStyle.TiledWindow | WindowStyle.ClipChildren;
extendedWindowStyle = ExtendedWindowStyle.WindowEdge | ExtendedWindowStyle.ApplicationWindow;
}
else
{
windowStyle2 = windowStyle1 | WindowStyle.Child | WindowStyle.Visible | WindowStyle.ClipSiblings;
extendedWindowStyle = ExtendedWindowStyle.Left;
}
Win32Rectangle lpRect = new Win32Rectangle();
lpRect.left = x;
lpRect.top = y;
lpRect.right = x + width;
lpRect.bottom = y + height;
Functions.AdjustWindowRectEx(ref lpRect, windowStyle2, false, extendedWindowStyle);
if (!this.class_registered)
{
if ((int)Functions.RegisterClassEx(ref new ExtendedWindowClass()
{
Size = ExtendedWindowClass.SizeInBytes,
Style = ClassStyle.OwnDC,
Instance = this.Instance,
WndProc = this.WindowProcedureDelegate,
ClassName = this.ClassName,
Icon = this.Icon != null ? this.Icon.Handle : IntPtr.Zero,
IconSm = this.Icon != null ? new Icon(this.Icon, 16, 16).Handle : IntPtr.Zero,
Cursor = Functions.LoadCursor(CursorName.Arrow)
}) == 0)
{
throw new PlatformException(string.Format("Failed to register window class. Error: {0}", (object)Marshal.GetLastWin32Error()));
}
this.class_registered = true;
}
IntPtr WindowName = Marshal.StringToHGlobalAuto(title);
IntPtr windowEx = Functions.CreateWindowEx(extendedWindowStyle, this.ClassName, WindowName, windowStyle2, lpRect.left, lpRect.top, lpRect.Width, lpRect.Height, parentHandle, IntPtr.Zero, this.Instance, IntPtr.Zero);
if (windowEx == IntPtr.Zero)
{
throw new PlatformException(string.Format("Failed to create window. Error: {0}", (object)Marshal.GetLastWin32Error()));
}
else
{
return(windowEx);
}
}