/// <summary>
/// gestion de startComposition et EndComposition
/// </summary>
/// <param name="m"></param>
protected override void WndProc(ref Message m)
{
const int WM_IME_STARTCOMPOSITION = 0x010D;
const int WM_IME_ENDCOMPOSITION = 0x010E;
const int WM_IME_COMPOSITION = 0x010F;
try
{
switch (m.Msg)
{
case WM_IME_STARTCOMPOSITION:
FInComposition = true;
break;
case WM_IME_ENDCOMPOSITION:
FInComposition = false;
break;
case WM_IME_COMPOSITION:
break;
}
base.WndProc(ref m);
switch ((Msgs)m.Msg)
{
case Msgs.WM_NCCALCSIZE:
int a = (int)m.WParam;
if (a != 0)
{
NCCalcSizeParams size = (NCCalcSizeParams)Marshal.PtrToStructure(m.LParam, typeof(NCCalcSizeParams));
size.rgrc0.Top += 1;
size.rgrc0.Left += 1;
size.rgrc0.Right -= 1;
size.rgrc0.Bottom -= 1;
Marshal.StructureToPtr(size, m.LParam, false);
}
else
{
Debug.WriteLine("WM_NCCALCSIZE fCalcValidRects = false");
}
break;
case Msgs.WM_NCPAINT:
FlagsDCX flags = FlagsDCX.DCX_CACHE | FlagsDCX.DCX_CLIPSIBLINGS | FlagsDCX.DCX_WINDOW | FlagsDCX.DCX_VALIDATE;
IntPtr dc = NativeMethods.GetDCEx(this.Handle, m.WParam, flags);
if (dc != IntPtr.Zero)
{
try
{
using (Graphics g = Graphics.FromHdc(dc))
{
Rectangle rectRegion = Rectangle.Empty;
rectRegion = new Rectangle(0, 0, this.Size.Width - 1, this.Size.Height - 1);
g.DrawRectangle(Pens.Black, rectRegion);
}
}
finally
{
NativeMethods.ReleaseDC(this.Handle, dc);
}
}
m.Result = IntPtr.Zero;
break;
/*
* case Msgs.WM_GETDLGCODE :
* m.Result = new IntPtr((int)(DialogCodes.DLGC_WANTTAB | DialogCodes.DLGC_WANTARROWS));
* break;
*/
}
}
catch
{
throw;
}
}
internal extern static IntPtr GetDCEx(IntPtr hWnd, IntPtr hrgnClip, FlagsDCX flags);
