/// <devdoc> this takes a native menu and builds up a managed toolstrip around it.
/// Scenario: showing the items from the SystemMenu.
/// targetWindow is the window to send WM_COMMAND, WM_SYSCOMMAND to
/// hmenu is a handle to the native menu
///
///
internal static ToolStripDropDownMenu FromHMenu(IntPtr hmenu, IWin32Window targetWindow)
{
ToolStripDropDownMenu managedDropDown = new ToolStripDropDownMenu();
managedDropDown.SuspendLayout();
HandleRef menuHandle = new HandleRef(null, hmenu);
int count = UnsafeNativeMethods.GetMenuItemCount(menuHandle);
ToolStripItem itemToAdd;
// surf through the items in the collection, building up TSMenuItems and TSSeparators
// corresponding to the native menu.
for (int i = 0; i < count; i++)
{
// peek at the i'th item.
NativeMethods.MENUITEMINFO_T_RW info = new NativeMethods.MENUITEMINFO_T_RW();
info.cbSize = Marshal.SizeOf <NativeMethods.MENUITEMINFO_T_RW>();
info.fMask = NativeMethods.MIIM_FTYPE;
info.fType = NativeMethods.MIIM_FTYPE;
UnsafeNativeMethods.GetMenuItemInfo(menuHandle, i, /*fByPosition=*/ true, info);
if (info.fType == NativeMethods.MFT_SEPARATOR)
{
// its a separator.
itemToAdd = new ToolStripSeparator();
}
else
{
// its a menu item... lets fish out the command id
info = new NativeMethods.MENUITEMINFO_T_RW();
info.cbSize = Marshal.SizeOf <NativeMethods.MENUITEMINFO_T_RW>();
info.fMask = NativeMethods.MIIM_ID;
info.fType = NativeMethods.MIIM_ID;
UnsafeNativeMethods.GetMenuItemInfo(menuHandle, i, /*fByPosition=*/ true, info);
// create the managed object - toolstripmenu item knows how to grok hmenu for information.
itemToAdd = new ToolStripMenuItem(hmenu, info.wID, targetWindow);
// if there is a submenu fetch it.
info = new NativeMethods.MENUITEMINFO_T_RW();
info.cbSize = Marshal.SizeOf <NativeMethods.MENUITEMINFO_T_RW>();
info.fMask = NativeMethods.MIIM_SUBMENU;
info.fType = NativeMethods.MIIM_SUBMENU;
UnsafeNativeMethods.GetMenuItemInfo(menuHandle, i, /*fByPosition=*/ true, info);
if (info.hSubMenu != IntPtr.Zero)
{
// set the dropdown to be the items from the submenu
((ToolStripMenuItem)itemToAdd).DropDown = FromHMenu(info.hSubMenu, targetWindow);
}
}
managedDropDown.Items.Add(itemToAdd);
}
managedDropDown.ResumeLayout();
return(managedDropDown);
}
internal static ToolStripDropDownMenu FromHMenu(IntPtr hmenu, IWin32Window targetWindow)
{
ToolStripDropDownMenu menu = new ToolStripDropDownMenu();
menu.SuspendLayout();
HandleRef hMenu = new HandleRef(null, hmenu);
int menuItemCount = System.Windows.Forms.UnsafeNativeMethods.GetMenuItemCount(hMenu);
for (int i = 0; i < menuItemCount; i++)
{
ToolStripItem item;
System.Windows.Forms.NativeMethods.MENUITEMINFO_T_RW lpmii = new System.Windows.Forms.NativeMethods.MENUITEMINFO_T_RW {
cbSize = Marshal.SizeOf(typeof(System.Windows.Forms.NativeMethods.MENUITEMINFO_T_RW)),
fMask = 0x100,
fType = 0x100
};
System.Windows.Forms.UnsafeNativeMethods.GetMenuItemInfo(hMenu, i, true, lpmii);
if (lpmii.fType == 0x800)
{
item = new ToolStripSeparator();
}
else
{
lpmii = new System.Windows.Forms.NativeMethods.MENUITEMINFO_T_RW {
cbSize = Marshal.SizeOf(typeof(System.Windows.Forms.NativeMethods.MENUITEMINFO_T_RW)),
fMask = 2,
fType = 2
};
System.Windows.Forms.UnsafeNativeMethods.GetMenuItemInfo(hMenu, i, true, lpmii);
item = new ToolStripMenuItem(hmenu, lpmii.wID, targetWindow);
lpmii = new System.Windows.Forms.NativeMethods.MENUITEMINFO_T_RW {
cbSize = Marshal.SizeOf(typeof(System.Windows.Forms.NativeMethods.MENUITEMINFO_T_RW)),
fMask = 4,
fType = 4
};
System.Windows.Forms.UnsafeNativeMethods.GetMenuItemInfo(hMenu, i, true, lpmii);
if (lpmii.hSubMenu != IntPtr.Zero)
{
((ToolStripMenuItem)item).DropDown = FromHMenu(lpmii.hSubMenu, targetWindow);
}
}
menu.Items.Add(item);
}
menu.ResumeLayout();
return(menu);
}
/// <devdoc> this takes a native menu and builds up a managed toolstrip around it.
/// Scenario: showing the items from the SystemMenu.
/// targetWindow is the window to send WM_COMMAND, WM_SYSCOMMAND to
/// hmenu is a handle to the native menu
///
///
internal static ToolStripDropDownMenu FromHMenu(IntPtr hmenu, IWin32Window targetWindow) {
ToolStripDropDownMenu managedDropDown = new ToolStripDropDownMenu();
managedDropDown.SuspendLayout();
HandleRef menuHandle = new HandleRef(null, hmenu);
int count = UnsafeNativeMethods.GetMenuItemCount(menuHandle);
ToolStripItem itemToAdd;
// surf through the items in the collection, building up TSMenuItems and TSSeparators
// corresponding to the native menu.
for (int i = 0; i < count; i++) {
// peek at the i'th item.
NativeMethods.MENUITEMINFO_T_RW info = new NativeMethods.MENUITEMINFO_T_RW();
info.cbSize = Marshal.SizeOf(typeof(NativeMethods.MENUITEMINFO_T_RW));
info.fMask = NativeMethods.MIIM_FTYPE;
info.fType = NativeMethods.MIIM_FTYPE;
UnsafeNativeMethods.GetMenuItemInfo(menuHandle, i, /*fByPosition=*/ true, info);
if (info.fType == NativeMethods.MFT_SEPARATOR){
// its a separator.
itemToAdd = new ToolStripSeparator();
}
else {
// its a menu item... lets fish out the command id
info = new NativeMethods.MENUITEMINFO_T_RW();
info.cbSize = Marshal.SizeOf(typeof(NativeMethods.MENUITEMINFO_T_RW));
info.fMask = NativeMethods.MIIM_ID;
info.fType = NativeMethods.MIIM_ID;
UnsafeNativeMethods.GetMenuItemInfo(menuHandle, i, /*fByPosition=*/ true, info);
// create the managed object - toolstripmenu item knows how to grok hmenu for information.
itemToAdd = new ToolStripMenuItem(hmenu, info.wID, targetWindow);
// if there is a submenu fetch it.
info = new NativeMethods.MENUITEMINFO_T_RW();
info.cbSize = Marshal.SizeOf(typeof(NativeMethods.MENUITEMINFO_T_RW));
info.fMask = NativeMethods.MIIM_SUBMENU;
info.fType = NativeMethods.MIIM_SUBMENU;
UnsafeNativeMethods.GetMenuItemInfo(menuHandle, i, /*fByPosition=*/ true, info);
if (info.hSubMenu != IntPtr.Zero) {
// set the dropdown to be the items from the submenu
((ToolStripMenuItem)itemToAdd).DropDown = FromHMenu(info.hSubMenu, targetWindow);
}
}
managedDropDown.Items.Add(itemToAdd);
}
managedDropDown.ResumeLayout();
return managedDropDown;
}
internal static ToolStripDropDownMenu FromHMenu(IntPtr hmenu, IWin32Window targetWindow)
{
ToolStripDropDownMenu menu = new ToolStripDropDownMenu();
menu.SuspendLayout();
HandleRef hMenu = new HandleRef(null, hmenu);
int menuItemCount = System.Windows.Forms.UnsafeNativeMethods.GetMenuItemCount(hMenu);
for (int i = 0; i < menuItemCount; i++)
{
ToolStripItem item;
System.Windows.Forms.NativeMethods.MENUITEMINFO_T_RW lpmii = new System.Windows.Forms.NativeMethods.MENUITEMINFO_T_RW {
cbSize = Marshal.SizeOf(typeof(System.Windows.Forms.NativeMethods.MENUITEMINFO_T_RW)),
fMask = 0x100,
fType = 0x100
};
System.Windows.Forms.UnsafeNativeMethods.GetMenuItemInfo(hMenu, i, true, lpmii);
if (lpmii.fType == 0x800)
{
item = new ToolStripSeparator();
}
else
{
lpmii = new System.Windows.Forms.NativeMethods.MENUITEMINFO_T_RW {
cbSize = Marshal.SizeOf(typeof(System.Windows.Forms.NativeMethods.MENUITEMINFO_T_RW)),
fMask = 2,
fType = 2
};
System.Windows.Forms.UnsafeNativeMethods.GetMenuItemInfo(hMenu, i, true, lpmii);
item = new ToolStripMenuItem(hmenu, lpmii.wID, targetWindow);
lpmii = new System.Windows.Forms.NativeMethods.MENUITEMINFO_T_RW {
cbSize = Marshal.SizeOf(typeof(System.Windows.Forms.NativeMethods.MENUITEMINFO_T_RW)),
fMask = 4,
fType = 4
};
System.Windows.Forms.UnsafeNativeMethods.GetMenuItemInfo(hMenu, i, true, lpmii);
if (lpmii.hSubMenu != IntPtr.Zero)
{
((ToolStripMenuItem) item).DropDown = FromHMenu(lpmii.hSubMenu, targetWindow);
}
}
menu.Items.Add(item);
}
menu.ResumeLayout();
return menu;
}