protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
if (disposing)
{
if (_backDc != null)
{
_backDc.Dispose();
_backDc = null;
}
if (!_titleFont.IsSystemFont)
{
_titleFont.Dispose();
}
_titleFont = null;
_image = null;
_colorTable = null;
}
}
private void TipCapture()
{
IntPtr handle = Handle;
if (handle == IntPtr.Zero)
{
return;
}
RECT rect = new RECT();
NativeMethods.GetWindowRect(handle, ref rect);
Size size = new Size(
rect.Right - rect.Left,
rect.Bottom - rect.Top);
_backDc = new ImageDc(size.Width, size.Height);
IntPtr pD = NativeMethods.GetDesktopWindow();
IntPtr pH = NativeMethods.GetDC(pD);
NativeMethods.BitBlt(
_backDc.Hdc,
0, 0, size.Width, size.Height,
pH, rect.Left, rect.Top, 0xCC0020);
NativeMethods.ReleaseDC(pD, pH);
}
private void DrawScrollBar(IntPtr maskHWnd, Rectangle bounds, Rectangle trackRect, Rectangle topLeftArrowRect, Rectangle bottomRightArrowRect, Rectangle thumbRect, ControlState topLeftArrowState, ControlState bottomRightArrowState, ControlState thumbState, Orientation direction)
{
bool bHorizontal = direction == Orientation.Horizontal;
bool bEnabled = this._owner.Enabled;
IScrollBarPaint paint = this._owner as IScrollBarPaint;
if (paint != null)
{
ImageDc tempDc = new ImageDc(bounds.Width, bounds.Height);
IntPtr hdc = CCWin.Win32.NativeMethods.GetDC(maskHWnd);
try
{
using (Graphics g = Graphics.FromHdc(tempDc.Hdc))
{
using (PaintScrollBarTrackEventArgs te = new PaintScrollBarTrackEventArgs(g, trackRect, direction, bEnabled))
{
paint.OnPaintScrollBarTrack(te);
}
ArrowDirection arrowDirection = bHorizontal ? ArrowDirection.Left : ArrowDirection.Up;
using (PaintScrollBarArrowEventArgs te = new PaintScrollBarArrowEventArgs(g, topLeftArrowRect, topLeftArrowState, arrowDirection, direction, bEnabled))
{
paint.OnPaintScrollBarArrow(te);
}
arrowDirection = bHorizontal ? ArrowDirection.Right : ArrowDirection.Down;
using (PaintScrollBarArrowEventArgs te = new PaintScrollBarArrowEventArgs(g, bottomRightArrowRect, bottomRightArrowState, arrowDirection, direction, bEnabled))
{
paint.OnPaintScrollBarArrow(te);
}
using (PaintScrollBarThumbEventArgs te = new PaintScrollBarThumbEventArgs(g, thumbRect, thumbState, direction, bEnabled))
{
paint.OnPaintScrollBarThumb(te);
}
}
CCWin.Win32.NativeMethods.BitBlt(hdc, 0, 0, bounds.Width, bounds.Height, tempDc.Hdc, 0, 0, 0xcc0020);
}
finally
{
CCWin.Win32.NativeMethods.ReleaseDC(maskHWnd, hdc);
tempDc.Dispose();
}
}
}