UEFI-code
diff --git a/‎MonikaDLL/.vs/MonikaDLL/FileContentIndex/55cdb98f-28cb-4f97-912f-2a7a4c9b6347.vsidx‎
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diff --git a/‎MonikaDLL/.vs/MonikaDLL/FileContentIndex/93f82f6d-02cd-43f1-b93e-c274f68ad3b6.vsidx‎
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diff --git a/‎MonikaDLL/.vs/MonikaDLL/v17/.suo‎
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diff --git a/‎MonikaDLL/.vs/MonikaDLL/v17/Browse.VC.db‎
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diff --git a/‎MonikaDLL/KernelWrapper.cpp‎
Lines changed: 3 additions & 1 deletion b/‎MonikaDLL/KernelWrapper.cpp‎
Lines changed: 3 additions & 1 deletion
diff --git a/‎MonikaDLL/MonikaDLL/x64/Release/KernelWrapper.obj‎
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diff --git a/‎MonikaDLL/MonikaDLL/x64/Release/MonikaDLL.iobj‎
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diff --git a/‎MonikaDLL/MonikaDLL/x64/Release/MonikaDLL.ipdb‎
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diff --git a/‎MonikaDLL/MonikaDLL/x64/Release/vc143.pdb‎
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diff --git a/‎MonikaDLL/x64/Release/MonikaDLL.dll‎
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@@ -27,13 +27,15 @@ typedef struct
 #define RING3_REQUIRE_START_BEEP 0x90
 #define RING3_REQUIRE_STOP_BEEP 0x91
 
-__declspec(dllexport) void get_my_driver_handle()
+__declspec(dllexport) UINT8 get_my_driver_handle()
 {
     device = CreateFile(L"\\\\.\\Monika_Link", GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM, 0);
     if (device == INVALID_HANDLE_VALUE) {
         printf("CreateFile failed!\n");
         device = NULL;
+        return -1;
     }
+    return 0;
 }
 
 __declspec(dllexport) uint32_t MonikaBeepStart(uint16_t freq)
Original file line number	Diff line number	Diff line change
`@@ -27,13 +27,15 @@ typedef struct`
`27`	`27`	`#define RING3_REQUIRE_START_BEEP 0x90`
`28`	`28`	`#define RING3_REQUIRE_STOP_BEEP 0x91`
`29`	`29`
`30`		`-__declspec(dllexport) void get_my_driver_handle()`
	`30`	`+__declspec(dllexport) UINT8 get_my_driver_handle()`
`31`	`31`	`{`
`32`	`32`	`device = CreateFile(L"\\\\.\\Monika_Link", GENERIC_READ \| GENERIC_WRITE, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM, 0);`
`33`	`33`	`if (device == INVALID_HANDLE_VALUE) {`
`34`	`34`	`printf("CreateFile failed!\n");`
`35`	`35`	`device = NULL;`
	`36`	`+ return -1;`
`36`	`37`	`}`
	`38`	`+ return 0;`
`37`	`39`	`}`
`38`	`40`
`39`	`41`	`__declspec(dllexport) uint32_t MonikaBeepStart(uint16_t freq)`