private IntPtr MatchKeyToMenuItem(int startItem, char key, MenuItemKeyComparer comparer)
{
int low = -1;
bool flag = false;
for (int i = 0; (i < this.items.Length) && !flag; i++)
{
int index = (startItem + i) % this.items.Length;
MenuItem mi = this.items[index];
if ((mi != null) && comparer(mi, key))
{
if (low < 0)
{
low = mi.MenuIndex;
}
else
{
flag = true;
}
}
}
if (low < 0)
{
return(IntPtr.Zero);
}
int high = flag ? 3 : 2;
return((IntPtr)System.Windows.Forms.NativeMethods.Util.MAKELONG(low, high));
}
/// <include file='doc\Menu.uex' path='docs/doc[@for="Menu.MatchKeyToMenuItem"]/*' />
/// <devdoc>
/// Walks the menu item collection, using a caller-supplied delegate to find one
/// with a matching access key. Walk starts at specified item index and performs one
/// full pass of the entire collection, looping back to the top if necessary.
///
/// Return value is intended for return from WM_MENUCHAR message. It includes both
/// index of matching item, and action for OS to take (execute or select). Zero is
/// used to indicate that no match was found (OS should ignore key and beep).
/// </devdoc>
/// <internalonly/>
private IntPtr MatchKeyToMenuItem(int startItem, char key, MenuItemKeyComparer comparer)
{
int firstMatch = -1;
bool multipleMatches = false;
for (int i = 0; i < items.Length && !multipleMatches; ++i)
{
int itemIndex = (startItem + i) % items.Length;
MenuItem mi = items[itemIndex];
if (mi != null && comparer(mi, key))
{
if (firstMatch < 0)
{
// Using Index doesnt respect hidden items.
firstMatch = mi.MenuIndex;
}
else
{
multipleMatches = true;
}
}
}
if (firstMatch < 0)
{
return(IntPtr.Zero);
}
int action = multipleMatches ? NativeMethods.MNC_SELECT : NativeMethods.MNC_EXECUTE;
return((IntPtr)NativeMethods.Util.MAKELONG(firstMatch, action));
}
/// <include file='doc\Menu.uex' path='docs/doc[@for="Menu.MatchKeyToMenuItem"]/*' />
/// <devdoc>
/// Walks the menu item collection, using a caller-supplied delegate to find one
/// with a matching access key. Walk starts at specified item index and performs one
/// full pass of the entire collection, looping back to the top if necessary.
///
/// Return value is intended for return from WM_MENUCHAR message. It includes both
/// index of matching item, and action for OS to take (execute or select). Zero is
/// used to indicate that no match was found (OS should ignore key and beep).
/// </devdoc>
/// <internalonly/>
private IntPtr MatchKeyToMenuItem(int startItem, char key, MenuItemKeyComparer comparer) {
int firstMatch = -1;
bool multipleMatches = false;
for (int i = 0; i < items.Length && !multipleMatches; ++i) {
int itemIndex = (startItem + i) % items.Length;
MenuItem mi = items[itemIndex];
if (mi != null && comparer(mi, key)) {
if (firstMatch < 0){
// VSWhidbey 218021 using Index doesnt respect hidden items.
firstMatch = mi.MenuIndex;
}
else {
multipleMatches = true;
}
}
}
if (firstMatch < 0)
return IntPtr.Zero;
int action = multipleMatches ? NativeMethods.MNC_SELECT : NativeMethods.MNC_EXECUTE;
return (IntPtr) NativeMethods.Util.MAKELONG(firstMatch, action);
}