internal int DrawText(IntPtr hDC, IntPtr hFont, string sText, int nLen, ref Rectangle rect, uint uFormat, Color foreColor, Color backColor)
{
IntPtr hOldFont = GDIPlus.SelectObject(hDC, hFont);
GDIPlus.SetTextColor(hDC, ColorTranslator.ToWin32(foreColor) /*(int)GDIPlus.RGB(foreColor)*/);
GDIPlus.SetBkColor(hDC, ColorTranslator.ToWin32(backColor) /*(int)GDIPlus.RGB(backColor)*/);
if (backColor == Color.Empty)
{
GDIPlus.SetBkMode(hDC, GDIPlus.TRANSPARENT);
}
else
{
GDIPlus.SetBkMode(hDC, GDIPlus.OPAQUE);
}
GDIPlus.RECT rc = new GDIPlus.RECT();
rc.left = rect.Left;
rc.top = rect.Top;
rc.right = rect.Right;
rc.bottom = rect.Bottom;
//int nRet = GDIPlus.DrawText(hDC, sText, nLen, ref rc, uFormat);
int nRet = GDIPlus.ExtTextOut(hDC, rc.left, rc.top, uFormat, ref rc, sText, sText.Length, null);
GDIPlus.SelectObject(hDC, hOldFont);
return(nRet);
}
/// <summary>
/// Copies graphics from <see cref="Control"/> with transparent color.
/// </summary>
/// <param name="ctl">Control to copy graphics from</param>
/// <param name="rc">Rectangle to copy.</param>
/// <param name="transpColor">Transaprent color.</param>
public void CopyGraphics(Control ctl, Rectangle rc, Color transpColor)
{
IntPtr hwnd = GetControlHandle(ctl);
IntPtr hdcSrc = GDIPlus.GetDC(hwnd);
GDIPlus.RECT srcRect = new GDIPlus.RECT();
GDIPlus.GetWindowRect(hwnd, ref srcRect);
GDIPlus.TransparentImage(hDC, rc.Left, rc.Top, rc.Width, rc.Height, hdcSrc, 0, 0, srcRect.right - srcRect.left, srcRect.bottom - srcRect.top, ColorTranslator.ToWin32(transpColor) /*(int)GDIPlus.RGB(transpColor)*/);
GDIPlus.ReleaseDC(hwnd, hdcSrc);
}
/// <summary>
/// Measures the specified string when drawn with the specified <see cref="FontEx"/> object.
/// </summary>
/// <param name="text">String to measure.</param>
/// <param name="font"><see cref="FontEx"/> object that defines the text format of the string.</param>
/// <param name="width">Width to fit the string.</param>
/// <returns></returns>
public SizeF MeasureString(string text, FontEx font, int width)
{
//GDIPlus.SIZE sz = new GDIPlus.SIZE();
IntPtr hdcTemp = GDIPlus.CreateCompatibleDC(hDC);
IntPtr oldFont = GDIPlus.SelectObject(hdcTemp, font.hFont);
GDIPlus.RECT rc = new GDIPlus.RECT();
rc.right = width;
rc.bottom = 320;
int height = GDIPlus.DrawText(hdcTemp, text, text.Length, ref rc,
GDIPlus.DT_LEFT | GDIPlus.DT_TOP | GDIPlus.DT_WORDBREAK | GDIPlus.DT_CALCRECT);
GDIPlus.SelectObject(hdcTemp, oldFont);
GDIPlus.DeleteDC(hdcTemp);
return(new SizeF(width, height));
}
