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I need to detect the key combination CTRL and "+" sign simultaneously, sure there is a way, but I can not find the virtual code VK of the "+" sign anywhere, except the unique code of numeric keyboard vkAdd.

For example, for the general sign "-", we have Vkminus and for the numeric keyboard vkSubtract. How would it be for the plus sign? 

 if (ssCtrl in Shift) and (Key = vkminus) then // sign "-" ok ! if (ssCtrl in Shift) and (Key = ¿?) then // sign "+" :-(
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  • You have deleted your question regarding transparent StringGrid. It is a pitty, because I've been trying different means and found a simple way of making the grid transparent. If you are still interested, please undelete your question and leave me a notification. Commented Nov 30, 2019 at 8:42

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You are looking for $BB :

 if (ssCtrl in Shift) and (Key = $BB) then

VK_OEM_PLUS Defined in Windows unit.

{$EXTERNALSYM VK_OEM_PLUS} VK_OEM_PLUS = 187; {$EXTERNALSYM VK_OEM_MINUS} VK_OEM_MINUS = 189;
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