Shell_MergeMenus
// Copy a menu onto the beginning or end of another menu
// Adds uIDAdjust to each menu ID (pass in 0 for no adjustment)
// Will not add any item whose adjusted ID is greater than uMaxIDAdjust
// (pass in 0xffff to allow everything)
// Returns one more than the maximum adjusted ID that is used
//
UINT WINAPI Shell_MergeMenus(HMENU hmDst, HMENU hmSrc, UINT uInsert, UINT uIDAdjust, UINT uIDAdjustMax, ULONG uFlags)
{
int nItem;
HMENU hmSubMenu;
BOOL bAlreadySeparated;
MENUITEMINFO miiSrc;
TCHAR szName[256];
UINT uTemp, uIDMax = uIDAdjust;
if (!hmDst || !hmSrc)
{
goto MM_Exit;
}
nItem = GetMenuItemCount(hmDst);
if (uInsert >= (UINT)nItem)
{
uInsert = (UINT)nItem;
bAlreadySeparated = TRUE;
}
else
{
bAlreadySeparated = _SHIsMenuSeparator(hmDst, uInsert);;
}
if ((uFlags & MM_ADDSEPARATOR) && !bAlreadySeparated)
{
// Add a separator between the menus
InsertMenu(hmDst, uInsert, MF_BYPOSITION | MF_SEPARATOR, 0, NULL);
bAlreadySeparated = TRUE;
}
// Go through the menu items and clone them
for (nItem = GetMenuItemCount(hmSrc) - 1; nItem >= 0; nItem--)
{
miiSrc.cbSize = SIZEOF(MENUITEMINFO);
miiSrc.fMask = MIIM_STATE | MIIM_ID | MIIM_SUBMENU | MIIM_CHECKMARKS | MIIM_TYPE | MIIM_DATA;
// We need to reset this every time through the loop in case
// menus DON'T have IDs
miiSrc.fType = MFT_STRING;
miiSrc.dwTypeData = szName;
miiSrc.dwItemData = 0;
miiSrc.cch = ARRAYSIZE(szName);
if (!GetMenuItemInfo(hmSrc, nItem, TRUE, &miiSrc))
{
continue;
}
// If it's a separator, then add it. If the separator has a
// submenu, then the caller is smoking crash and needs their butt kicked.
if ((miiSrc.fType & MFT_SEPARATOR) && EVAL(!miiSrc.hSubMenu))
{
// This is a separator; don't put two of them in a row
if (bAlreadySeparated && miiSrc.wID == -1 && !(uFlags & MM_DONTREMOVESEPS))
{
continue;
}
bAlreadySeparated = TRUE;
}
else if (miiSrc.hSubMenu)
{
if (uFlags & MM_SUBMENUSHAVEIDS)
{
// Adjust the ID and check it
miiSrc.wID += uIDAdjust;
if (miiSrc.wID > uIDAdjustMax)
{
continue;
}
if (uIDMax <= miiSrc.wID)
{
uIDMax = miiSrc.wID + 1;
}
}
else
{
// Don't set IDs for submenus that didn't have
// them already
miiSrc.fMask &= ~MIIM_ID;
}
hmSubMenu = miiSrc.hSubMenu;
miiSrc.hSubMenu = CreatePopupMenu();
if (!miiSrc.hSubMenu)
{
goto MM_Exit;
}
uTemp = Shell_MergeMenus(miiSrc.hSubMenu, hmSubMenu, 0, uIDAdjust,
uIDAdjustMax, uFlags&MM_SUBMENUSHAVEIDS);
if (uIDMax <= uTemp)
{
uIDMax = uTemp;
}
bAlreadySeparated = FALSE;
}
else
{
// Adjust the ID and check it
miiSrc.wID += uIDAdjust;
if (miiSrc.wID > uIDAdjustMax)
{
continue;
}
if (uIDMax <= miiSrc.wID)
{
uIDMax = miiSrc.wID + 1;
}
bAlreadySeparated = FALSE;
}
if (!EVAL(InsertMenuItem(hmDst, uInsert, TRUE, &miiSrc)))
{
goto MM_Exit;
}
}
// Ensure the correct number of separators at the beginning of the
// inserted menu items
if (uInsert == 0)
{
if (bAlreadySeparated && !(uFlags & MM_DONTREMOVESEPS))
{
DeleteMenu(hmDst, uInsert, MF_BYPOSITION);
}
}
else
{
if (_SHIsMenuSeparator(hmDst, uInsert-1))
{
if (bAlreadySeparated && !(uFlags & MM_DONTREMOVESEPS))
{
DeleteMenu(hmDst, uInsert, MF_BYPOSITION);
}
}
else
{
if ((uFlags & MM_ADDSEPARATOR) && !bAlreadySeparated)
{
// Add a separator between the menus
InsertMenu(hmDst, uInsert, MF_BYPOSITION | MF_SEPARATOR, 0, NULL);
}
}
}
MM_Exit:
#ifdef DEBUG
DBCheckMenu(hmDst);
#endif
return(uIDMax);
}
