/// <summary>
/// Update the control parameter's styles.
/// </summary>
private void UpdateControlStyles()
{
int fStyle = NativeHeader.GetWindowLong(Handle, NativeHeader.GWL_EXSTYLE);
if (BorderStyle == BorderStyle.FixedSingle)
{
// remove the Fixed3D border style
fStyle &= ~NativeWindowCommon.WS_EX_CLIENTEDGE;
InvalidateNC();
}
if (isTransparent)
{
fStyle |= NativeHeader.WS_EX_TRANSPARENT;
}
else
{
fStyle &= ~NativeHeader.WS_EX_TRANSPARENT;
}
NativeWindowCommon.SetWindowLong(Handle, NativeHeader.GWL_EXSTYLE, fStyle);
fStyle = NativeHeader.GetWindowLong(Handle, NativeHeader.GWL_STYLE);
if (base.RightToLeft == RightToLeft.Yes)
{
fStyle |= NativeHeader.WS_EX_LTRREADING;
fStyle |= NativeHeader.WS_EX_RIGHT;
fStyle |= NativeHeader.WS_EX_LEFTSCROLLBAR;
}
else if (base.RightToLeft == RightToLeft.No)
{
fStyle |= NativeHeader.WS_EX_RTLREADING;
fStyle |= NativeHeader.WS_EX_LEFT;
fStyle |= NativeHeader.WS_EX_RIGHTSCROLLBAR;
}
NativeWindowCommon.SetWindowLong(Handle, NativeHeader.GWL_STYLE, fStyle);
}
/// <summary> subclass the combobox - replace it's window proce
/// </summary>
void subclassCombobox()
{
proc = new MobileWndProc(WindowProc);
OrigWndProc = (IntPtr)NativeWindowCommon.SetWindowLong(Handle, NativeWindowCommon.GWL_WNDPROC,
Marshal.GetFunctionPointerForDelegate(proc).ToInt32());
}
protected int WndProc(ref Message m)
#endif
{
MouseEventArgs mouseEvents;
switch (m.Msg)
{
#if !PocketPC
case NativeWindowCommon.CBN_DROPDOWN:
{
if (OriginalDropDownWindowProc == IntPtr.Zero)
{
NativeWindowCommon.COMBOBOXINFO comboBoxInfo = new NativeWindowCommon.COMBOBOXINFO();
// alloc ptrComboBoxInfo
IntPtr ptrComboBoxInfo = Marshal.AllocHGlobal(Marshal.SizeOf(comboBoxInfo));
try
{
//get combo Box Info
comboBoxInfo.cbSize = (IntPtr)Marshal.SizeOf(comboBoxInfo);
Marshal.StructureToPtr(comboBoxInfo, ptrComboBoxInfo, true);
IntPtr intptr = NativeHeader.SendMessage(this.Handle, NativeWindowCommon.CB_GETCOMBOBOXINFO, 0, ptrComboBoxInfo);
//CB_GETCOMBOBOXINFO : If the send message succeeds, the return value is nonzero.
int returnValue = intptr.ToInt32();
if (returnValue > 0)
{
// get the info from ptrComboBoxInfo to comboBoxInfo
comboBoxInfo = (NativeWindowCommon.COMBOBOXINFO)Marshal.PtrToStructure(ptrComboBoxInfo, typeof(NativeWindowCommon.COMBOBOXINFO));
// save hwnd drop down list
HwndDropDownList = comboBoxInfo.hwndList;
//replace the window proc of the drop down list
CustomDropDownWindowProc = new ControlWndProc(DropDownWindowProc);
// save the original drop down list (most be member in the class so the garbig collection will not free it)
OriginalDropDownWindowProc = (IntPtr)NativeWindowCommon.SetWindowLong(HwndDropDownList,
NativeWindowCommon.GWL_WNDPROC, Marshal.GetFunctionPointerForDelegate(CustomDropDownWindowProc).ToInt32());
}
else
{
Debug.Assert(false);
}
}
finally
{
// free the ptrComboBoxInfo
Marshal.FreeHGlobal(ptrComboBoxInfo);
}
}
}
break;
#endif
case NativeWindowCommon.WM_LBUTTONDOWN:
case NativeWindowCommon.WM_LBUTTONDBLCLK:
if (!this.DroppedDown)
{
// prevent drop down on combo - to prevent combo openning on non parkable controls
// - it must be handled manually
mouseEvents = new MouseEventArgs(MouseButtons.Left, 0,
NativeWindowCommon.LoWord((int)m.LParam), NativeWindowCommon.HiWord((int)m.LParam), 0);
this.OnMouseDown(mouseEvents);
// provide doubleclick event
#if !PocketPC
if (m.Msg == NativeWindowCommon.WM_LBUTTONDBLCLK)
{
this.OnMouseDoubleClick(mouseEvents);
}
return;
#else
return(0);
#endif
}
break;
}
#if !PocketPC
base.WndProc(ref m);
#else
return(NativeWindowCommon.CallWindowProc(OrigWndProc, m.HWnd, (uint)m.Msg, (uint)m.WParam.ToInt32(), m.LParam.ToInt32()));
#endif
}
private MobileWndProc _formProc; // object's delegate
/// <summary>
/// subclass the window
/// </summary>
void subclassThisForm(IntPtr hwnd)
{
_formProc = new MobileWndProc(formWindowProc);
_origFormWndProc = (IntPtr)NativeWindowCommon.SetWindowLong(hwnd, NativeWindowCommon.GWL_WNDPROC,
Marshal.GetFunctionPointerForDelegate(_formProc).ToInt32());
}
//This is usually where the control handle is created - subclass
void TableControl_HandleCreated(object sender, EventArgs e)
{
proc = new MobileWndProc(WindowProc);
OrigWndProc = (IntPtr)NativeWindowCommon.SetWindowLong(Handle, NativeWindowCommon.GWL_WNDPROC,
Marshal.GetFunctionPointerForDelegate(proc).ToInt32());
}