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 Size GetTextSize(Graphics graphics, string text, Font font)
{
IntPtr hdc = graphics.GetHdc();
IntPtr fontHandle = font.ToHfont();
IntPtr currentFontHandle = WindowsAPI.SelectObject(hdc, fontHandle);
RECT rect = new RECT();
rect.left = 0;
rect.right = 0;
rect.top = 0;
rect.bottom = 0;
WindowsAPI.DrawText(hdc, text, text.Length, ref rect,
(int)
(DrawTextFormatFlags.DT_SINGLELINE | DrawTextFormatFlags.DT_LEFT |
DrawTextFormatFlags.DT_CALCRECT));
WindowsAPI.SelectObject(hdc, currentFontHandle);
WindowsAPI.DeleteObject(fontHandle);
graphics.ReleaseHdc(hdc);
return new Size(rect.right - rect.left, rect.bottom - rect.top);
}
public static Size GetTextSize(Graphics graphics, string text, Font font, ref Rectangle rc,
DrawTextFormatFlags drawFlags)
{
IntPtr hdc = graphics.GetHdc();
IntPtr fontHandle = font.ToHfont();
IntPtr currentFontHandle = WindowsAPI.SelectObject(hdc, fontHandle);
RECT rect = new RECT();
rect.left = rc.Left;
rect.right = rc.Right;
rect.top = rc.Top;
rect.bottom = rc.Bottom;
WindowsAPI.DrawText(hdc, text, text.Length, ref rect, (int) drawFlags);
WindowsAPI.SelectObject(hdc, currentFontHandle);
WindowsAPI.DeleteObject(fontHandle);
graphics.ReleaseHdc(hdc);
return new Size(rect.right - rect.left, rect.bottom - rect.top);
}
public static extern int GetClientRect(IntPtr hWnd, ref RECT rc);
public static extern int FillRect(IntPtr hDC, ref RECT rect, IntPtr hBrush);
public static extern int DrawText(IntPtr hdc, string lpString, int nCount, ref RECT lpRect, int uFormat);
public static extern void SendMessage(IntPtr hWnd, int msg, int wParam, ref RECT lParam);
public static extern bool GetWindowRect(IntPtr hWnd, ref RECT rect);
public static extern bool GetMenuItemRect(IntPtr hWnd, IntPtr hMenu, uint Item, ref RECT rc);
