C#

Christian Graus wrote:

The other advice you were offered is wrong ( and weird )

Graphics g=e.Graphics;
int w=image.Width;
int h=image.Height;
Rectangle r=new Rectangle(x, y, w*zoomT/zoomN, h*zoomT/zoomN);
g.DrawImage(image,r);

image.RotateFlip(RotateFlipType.Rotate90FlipNone);

Luc Pattyn wrote:

The above rotate statement gives me a new image that is a rotated copy of the
original. It works just fine, as simple as that. Nothing weird, and no surprises either.

dsl/fahk wrote:

tabControlBrowser.TabPages[tabCount - 1].Controls.Add(webBrowser);

/// <summary>
/// delegate used for EnumWindows() callback function
/// </summary>
public delegate bool LP_EnumWindowsProc(IntPtr hWnd, int lParam);

/// <summary>
/// Gets a collection of all visible windows on the desktop.
/// </summary>
/// <returns></returns>
/// <remarks>The result may include some minimized windows too !</remarks>
public static ArrayList GetVisibleWindowHandles() {
	lock(env) {
		list=new ArrayList();
		EnumWindows(new LP_EnumWindowsProc(CollectVisibleWindows), 0);
		env.log(env.DETAIL1, "There are "+list.Count+" visible windows");
		return list;
	}
}

private static void CollectVisibleWindows(IntPtr hWnd, int lParam) {
	IntPtr ptr=(IntPtr)hWnd;
	if (IsWindowVisible(ptr)) {
		list.Add(ptr);
	}
}

/// <summary>
/// Enumerate all windows, calling a delegate for each of them.
/// </summary>
/// <param name="ewp"></param>
/// <param name="lParam"></param>
/// <returns></returns>
[DllImport("user32.dll", CallingConvention=CallingConvention.StdCall)]
public  static extern int EnumWindows(LP_EnumWindowsProc ewp, object lParam); 

/// <summary>
/// Determines whether a window is visible.
/// </summary>
/// <param name="hWnd"></param>
/// <returns></returns>
[DllImport("user32.dll", CallingConvention=CallingConvention.StdCall)]
public static extern bool IsWindowVisible(IntPtr hWnd);