public static Size Measure(Graphics gr, string text, Font font, Rectangle rect)
{
Tenor.Mobile.NativeMethods.RECT bounds = new Tenor.Mobile.NativeMethods.RECT();
bounds.left = rect.Left;
bounds.right = rect.Right;
bounds.bottom = rect.Bottom;
bounds.right = rect.Right;
IntPtr hFont = font.ToHfont();
IntPtr hdc = gr.GetHdc();
IntPtr originalObject = NativeMethods.SelectObject(hdc, hFont);
int flags = NativeMethods.DT_CALCRECT | NativeMethods.DT_WORDBREAK;
NativeMethods.DrawText(hdc, text, text.Length, ref bounds, flags);
NativeMethods.SelectObject(hdc, originalObject);
gr.ReleaseHdc(hdc);
return(new Size(bounds.right - bounds.left, bounds.bottom - bounds.top));
}
/// <summary>
/// Draws an image with alpha blending.
/// </summary>
private void DrawImageGdi(Graphics g, Rectangle destination)
{
if (g == null)
{
throw new ArgumentNullException("g");
}
if (destination.IsEmpty)
{
throw new ArgumentException("The destination rectangle cannot be empty.", "destination");
}
IntPtr hdc = g.GetHdc();
try
{
Tenor.Mobile.NativeMethods.RECT rect = new Tenor.Mobile.NativeMethods.RECT()
{
left = destination.X,
top = destination.Y,
right = destination.Right,
bottom = destination.Bottom
};
iimage.Draw(hdc, ref rect, IntPtr.Zero);
}
catch (COMException ex)
{
throw new Exception("Unable to draw transparent image.", ex);
}
catch
{
throw;
}
finally
{
g.ReleaseHdc(hdc);
}
}
internal static extern int DrawText(IntPtr hdc, string lpStr, int nCount, ref Tenor.Mobile.NativeMethods.RECT lpRect, int wFormat);
