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How to open external application?

Hi there,

I tried a few hours to open an external application from Unreal. As there is no blueprint node for that, I had to create a C++ function library.

But I have really a hard time with C++ and Visual Studio.

This is my header file:

 #pragma once
 
 #include "Kismet/BlueprintFunctionLibrary.h"
 #include "VRSR_CPP_FL.generated.h"
 
 
 /**
  * 
  */
 UCLASS()
 class VRSHOWROOM_API UVRSR_CPP_FL : public UBlueprintFunctionLibrary
 {
     GENERATED_UCLASS_BODY()
     
     UFUNCTION(BlueprintCallable, Category = "VRShowRoom")
     static void connectWiiMote();
     
     
 };
 

My CPP file:

 // #include "Windows/WindowsSystemIncludes.h" //ERROR, SO USING WINDOWS.H INSTEAD
 #include <windows.h>> 

 #include "VRShowRoom.h"
 #include "VRSR_CPP_FL.h"
    
 ////Our function lib
 UVRSR_CPP_FL::UVRSR_CPP_FL(const class FObjectInitializer& PCIP)
     : Super(PCIP)
 {
 }
 
 //Connect to WiiMote    
 void UVRSR_CPP_FL::connectWiiMote()
     {
         
     ClientMessage("Connecting Wiimote..."); //ERROR
     
     ShellExecute(NULL, "open", "path/to/connectWiiMote.exe", NULL, NULL, SW_HIDE); //ERROR
 
     };

I just can't get VS to compile this. Seems that the #include doesn't work, Shellexecute isn't even found.

So is there any method of just running an exe from within UE4 without getting crazy? Many thanks. ;)

Product Version: UE 4.8
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asked Jun 30 '15 at 01:56 PM in C++ Programming

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spyro
1.7k 106 117 233

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