public static Size GetTextSize( Graphics g, string text, Font font )
{
IntPtr hdc = GetGraphicsHDC( g );
IntPtr hFont = font.ToHfont();
IntPtr hOldFont = WindowsAPI.SelectObject( hdc, hFont );
RECT rect = new RECT();
WindowsAPI.DrawText( hdc, text, text.Length, ref rect, DEF_TEXTFORMAT );
WindowsAPI.SelectObject( hdc, hOldFont );
WindowsAPI.DeleteObject( hFont );
ReleaseGraphicHDC( g, hdc );
return ( Size )rect;
}
public static void DrawText( Graphics graphics, string text, Font font, Rectangle rect )
{
IntPtr hdc = graphics.GetHdc();
IntPtr fontHandle = font.ToHfont();
IntPtr currentFontHandle = WindowsAPI.SelectObject(hdc, fontHandle);
WindowsAPI.SetBkMode(hdc, BackgroundMode.TRANSPARENT);
RECT rc = new RECT();
rc.left = rect.Left;
rc.top = rect.Top;
rc.right = rc.left + rect.Width;
rc.bottom = rc.top + rect.Height;
WindowsAPI.DrawText(hdc, text, text.Length, ref rc,
(int)(DrawTextFormatFlags.DT_SINGLELINE | DrawTextFormatFlags.DT_LEFT
| DrawTextFormatFlags.DT_MODIFYSTRING| DrawTextFormatFlags.DT_WORD_ELLIPSIS));
WindowsAPI.SelectObject(hdc, currentFontHandle);
WindowsAPI.DeleteObject(fontHandle);
graphics.ReleaseHdc(hdc);
}
public static extern int ValidateRect( IntPtr hWnd, ref RECT rc );
public static extern int DrawText(IntPtr hdc, string lpString, int nCount, ref RECT lpRect, int uFormat);
public static extern int ScrollWindowEx(IntPtr hWnd, int dx, int dy, ref RECT rcScroll, ref RECT rcClip, IntPtr UpdateRegion, ref RECT rcInvalidated, uint flags);
public static extern void SendMessage(IntPtr hWnd, int msg, int wParam, ref RECT lParam);
public static extern int InvalidateRect(IntPtr hWnd, ref RECT rect, int bErase);
public static extern bool GetWindowRect(IntPtr hWnd, ref RECT rect);
public static extern bool GetMenuItemRect(IntPtr hWnd, IntPtr hMenu, uint Item, ref RECT rc);
public static extern int GetClientRect(IntPtr hWnd, ref RECT rc);
public static extern int FillRect(IntPtr hDC, ref RECT rect, IntPtr hBrush);