public static int GetTextExtentPoint32(HandleRef hDC, string text, [In, Out] IntNativeMethods.SIZE size)
{
int length = text.Length;
if (Marshal.SystemDefaultCharSize == 1)
{
byte[] pOutBytes = new byte[WideCharToMultiByte(0, 0, text, text.Length, null, 0, IntPtr.Zero, IntPtr.Zero)];
WideCharToMultiByte(0, 0, text, text.Length, pOutBytes, pOutBytes.Length, IntPtr.Zero, IntPtr.Zero);
length = Math.Min(text.Length, 0x2000);
return(GetTextExtentPoint32A(hDC, pOutBytes, length, size));
}
return(GetTextExtentPoint32W(hDC, text, text.Length, size));
}
public Size GetTextExtent(string text, WindowsFont font)
{
if (string.IsNullOrEmpty(text))
{
return(Size.Empty);
}
IntNativeMethods.SIZE size = new IntNativeMethods.SIZE();
HandleRef hDC = new HandleRef(null, this.dc.Hdc);
if (font != null)
{
this.dc.SelectFont(font);
}
IntUnsafeNativeMethods.GetTextExtentPoint32(hDC, text, size);
if ((font != null) && !MeasurementDCInfo.IsMeasurementDC(this.dc))
{
this.dc.ResetFont();
}
return(new Size(size.cx, size.cy));
}
public static bool SetViewportExtEx(HandleRef hDC, int x, int y, [In, Out] IntNativeMethods.SIZE size)
{
return(IntSetViewportExtEx(hDC, x, y, size));
}
public static extern bool IntSetViewportExtEx(HandleRef hDC, int x, int y, [In, Out] IntNativeMethods.SIZE size);
public static extern bool IntGetViewportExtEx(HandleRef hdc, [In, Out] IntNativeMethods.SIZE lpSize);
public static bool GetViewportExtEx(HandleRef hdc, [In, Out] IntNativeMethods.SIZE lpSize)
{
return(IntGetViewportExtEx(hdc, lpSize));
}
public static extern int GetTextExtentPoint32W(HandleRef hDC, string text, int len, [In, Out] IntNativeMethods.SIZE size);
public static extern int GetTextExtentPoint32A(HandleRef hDC, byte[] lpszString, int byteCount, [In, Out] IntNativeMethods.SIZE size);
public Size SetViewportExtent(Size newExtent)
{
IntNativeMethods.SIZE size = new IntNativeMethods.SIZE();
IntUnsafeNativeMethods.SetViewportExtEx(new HandleRef(this, this.Hdc), newExtent.Width, newExtent.Height, size);
return(size.ToSize());
}
