public Gdk.Rectangle GetWindowClientArea (Gdk.Rectangle allocation)
{
IntPtr hdc = GetDC (hWnd);
RECT r = new RECT (allocation.X, allocation.Y, allocation.X + allocation.Width, allocation.Y + allocation.Height);
SIZE size;
GetThemePartSize (hTheme, hdc, WP_CAPTION, CS_ACTIVE, ref r, 1, out size);
ReleaseDC (hWnd, hdc);
return new Gdk.Rectangle (allocation.X + FrameBorder, allocation.Y + size.cy, allocation.Width - FrameBorder * 2, allocation.Height - size.cy - FrameBorder);
}
public void DrawWindowFrame (Gtk.Widget w, string caption, int x, int y, int width, int height)
{
Gdk.Drawable drawable = w.GdkWindow;
Gdk.Pixmap pix = new Gdk.Pixmap (drawable, width, height, drawable.Depth);
Gdk.GC gcc = new Gdk.GC (pix);
gcc.Foreground = w.Style.Backgrounds [(int)Gtk.StateType.Normal];
pix.DrawRectangle (gcc, true, 0, 0, width, height);
IntPtr hdc = gdk_win32_hdc_get (pix.Handle, gcc.Handle, 0);
RECT r = new RECT (0, 0, width, height);
SIZE size;
GetThemePartSize (hTheme, hdc, WP_CAPTION, CS_ACTIVE, ref r, 1, out size);
r.Bottom = size.cy;
DrawThemeBackground (hTheme, hdc, WP_CAPTION, CS_ACTIVE, ref r, ref r);
RECT rf = new RECT (FrameBorder, FrameBorder, width - FrameBorder * 2, size.cy);
LOGFONT lf = new LOGFONT ();
GetThemeSysFont (hTheme, TMT_CAPTIONFONT, ref lf);
IntPtr titleFont = CreateFontIndirect (ref lf);
IntPtr oldFont = SelectObject (hdc, titleFont);
SetBkMode (hdc, 1 /*TRANSPARENT*/);
DrawThemeText (hTheme, hdc, WP_CAPTION, CS_ACTIVE, caption, -1, DT_LEFT | DT_SINGLELINE | DT_WORD_ELLIPSIS, 0, ref rf);
SelectObject (hdc, oldFont);
DeleteObject (titleFont);
int ny = r.Bottom;
r = new RECT (0, ny, width, height);
DrawThemeBackground (hTheme, hdc, WP_FRAMEBOTTOM, 0, ref r, ref r);
gdk_win32_hdc_release (pix.Handle, gcc.Handle, 0);
Gdk.Pixbuf img = Gdk.Pixbuf.FromDrawable (pix, pix.Colormap, 0, 0, 0, 0, width, height);
drawable.DrawPixbuf (new Gdk.GC (drawable), img, 0, 0, x, y, width, height, Gdk.RgbDither.None, 0, 0);
drawable.DrawRectangle (w.Style.BackgroundGC (Gtk.StateType.Normal), true, x + FrameBorder, y + size.cy, width - FrameBorder * 2, height - FrameBorder - size.cy);
}
extern static Int32 DrawThemeBackground (IntPtr hTheme, IntPtr hdc, int iPartId, int iStateId, ref RECT pRect, ref RECT pClipRect);
extern static Int32 DrawThemeText (IntPtr hTheme, IntPtr hdc, int iPartId, int iStateId, String text, int textLength, UInt32 textFlags, UInt32 textFlags2, ref RECT pRect);
extern static Int32 GetThemeBackgroundExtent (IntPtr hTheme, IntPtr hdc, int iPartId, int iStateId, ref RECT pBoundingRect, out RECT pContentRect);
extern static Int32 GetThemePartSize (IntPtr hTheme, IntPtr hdc, int part, int state, ref RECT pRect, int eSize, out SIZE size);
