Making control RTL or LTR

As many people asked me for making rtl or ltr controls on the compactframework.

My best solution for this question is:

public const int GWL_EXSTYLE = (-20);
public const int WS_EX_LAYOUTRTL = 0x400000;
public static void SetControlDirection(Control c, bool p_isRTL)
{
int style = GetWindowLong(c.Handle, GWL_EXSTYLE);

// set default to ltr (clear rtl bit)
style &= ~WS_EX_LAYOUTRTL;

if (p_isRTL == true)
{
// rtl
style = WS_EX_LAYOUTRTL;
}

SetWindowLong(c.Handle, GWL_EXSTYLE, style);
c.Invalidate();
}


[DllImport("coredll.dll")]
static extern int GetWindowLong(IntPtr hWnd, int cmd);

[DllImport("coredll.dll")]
static extern IntPtr SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);

CE OS supported:

I tried on "Windows Mobile 6 Classic" emulator and it worked. (CE OS = 5.2)

On "Windows Mobile 5.0 Pocket PC" emulator, also worked. (CE OS = 5.1)


On "Pocket PC 2003 SE" emulator, it did NOT worked! (CE OS = 4.21)




Download sample test





I hope it will be helpful for you... :)