From 03fd5898331a52003250ca2e21bbd5f1452a1dbd Mon Sep 17 00:00:00 2001
From: Konstantin Aladyshev <aladyshev22@gmail.com>
Date: Thu, 30 Dec 2021 16:21:10 +0300
Subject: Add draft for lesson 59

Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
---
 .../DisplayHIIByGuid/DisplayHIIByGuid.c            | 69 ++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 Lessons/Lesson_59/UefiLessonsPkg/DisplayHIIByGuid/DisplayHIIByGuid.c

(limited to 'Lessons/Lesson_59/UefiLessonsPkg/DisplayHIIByGuid/DisplayHIIByGuid.c')

diff --git a/Lessons/Lesson_59/UefiLessonsPkg/DisplayHIIByGuid/DisplayHIIByGuid.c b/Lessons/Lesson_59/UefiLessonsPkg/DisplayHIIByGuid/DisplayHIIByGuid.c
new file mode 100644
index 0000000..f1bf789
--- /dev/null
+++ b/Lessons/Lesson_59/UefiLessonsPkg/DisplayHIIByGuid/DisplayHIIByGuid.c
@@ -0,0 +1,69 @@
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+
+#include <Library/MemoryAllocationLib.h>
+#include <Protocol/FormBrowser2.h>
+#include <Library/HiiLib.h>
+
+INTN
+EFIAPI
+ShellAppMain (
+  IN UINTN Argc,
+  IN CHAR16 **Argv
+  )
+{
+  if (Argc <=1) {
+    Print(L"Usage:\n");
+    Print(L"  DisplayHIIByGuid <GUID> [<GUID> [<GUID> [...]]]\n");
+    return EFI_INVALID_PARAMETER;
+  }
+
+  GUID* Guids = (GUID*)AllocatePool(sizeof(GUID)*(Argc-1));
+
+  for (UINTN i=1; i<Argc; i++) {
+    RETURN_STATUS Status = StrToGuid(Argv[i], &Guids[i-1]);
+    if (Status != RETURN_SUCCESS) {
+      Print(L"Error! Can't convert one of the GUIDs to string\n");
+      FreePool(Guids);
+      return EFI_INVALID_PARAMETER;
+    }
+    Print(L"%g\n", Guids[i-1]);
+  }
+
+
+  EFI_HII_HANDLE* Handle = HiiGetHiiHandles(&Guids[0]);
+
+  UINTN HandleCount=0;
+  while (*Handle != NULL) {
+    Handle++;
+    HandleCount++;
+    Print(L"Total HandleCount=%d\n", HandleCount);
+  }
+  Print(L"Total HandleCount=%d\n", HandleCount);
+
+/*
+  return EFI_SUCCESS;
+
+  EFI_STATUS Status;
+  EFI_FORM_BROWSER2_PROTOCOL* FormBrowser2;
+  Status = gBS->LocateProtocol(&gEfiFormBrowser2ProtocolGuid, NULL, (VOID**)&FormBrowser2);
+  if (EFI_ERROR(Status)) {
+    return Status;
+  }
+
+  Status = FormBrowser2->SendForm (
+                           FormBrowser2,
+                           Handle,
+                           1,
+                           NULL,
+                           0,
+                           NULL,
+                           NULL
+                           );  
+
+*/
+  FreePool(Handle);
+  FreePool(Guids);
+
+  return EFI_SUCCESS;
+}
-- 
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