InputText: intentionally ignore character input when ctrl/alt are held (not sure if correct) (#279)

imgui.cpp

@@ -7022,8 +7022,9 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
         if (g.IO.InputCharacters[0])
         {
             // Process text input (before we check for Return because using some IME will effectively send a Return?)
-            for (int n = 0; n < IM_ARRAYSIZE(g.IO.InputCharacters) && g.IO.InputCharacters[n]; n++)
+            if (!is_ctrl_down && !is_alt_down)
             {
+                for (int n = 0; n < IM_ARRAYSIZE(g.IO.InputCharacters) && g.IO.InputCharacters[n]; n++)
                     if (unsigned int c = (unsigned int)g.IO.InputCharacters[n])
                     {
                         // Insert character if they pass filtering