UE4 windows文件交互

打开一个windows对话框

例子：

FailureMessage = FText::Format( LOCTEXT("PrimaryGameModuleCouldntBeLoaded", "The game module '{0}' could not be loaded. There may be an operating system error or the module may not be properly set up."), TextModuleName );

调用单例：

FMessageDialog::Open(EAppMsgType::Ok, FailureMessage);

 

有多种消息类型:

namespace EAppMsgType

{

    /**

     * Enumerates supported message dialog button types.

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     */

    enum Type

    {

        Ok,

        YesNo,

        OkCancel,

        YesNoCancel,

        CancelRetryContinue,

        YesNoYesAllNoAll,

        YesNoYesAllNoAllCancel,

        YesNoYesAll,

    };

}

 

运行本地的文件

FString ExePath =”E:\xxx.exe”;

    if (ExePath != TEXT(""))

    {

        FProcHandle ProcHandle =

FPlatformProcess::CreateProc

(*ExePath, nullptr, true, false, false, 0, 0, nullptr, nullptr);

    }

 

打开系统的文件操作对话框

IDesktopPlatform* DesktopPlatform = FDesktopPlatformModule::Get();

例子：

TArray<FString> OpenFilenames;  /打开的文件名（绝对路径）

    FString ExtensionStr;  //设定的文件类型

 

    if (EUploadMode::UploadFastMode == CurrrentUploadMode)

    {

        ExtensionStr = TEXT("FBX,JPG,BMP,PNG files|*.fbx;*.jpg;*.png;*.bmp");

    }

    else

    {

        if (EImportType::ImportMeshType == Type)

        {

            ExtensionStr = TEXT("FBX Files|*.fbx");

        }

        else

        {

            ExtensionStr = TEXT("JPG,BMP,PNG files|*.jpg;*.png;*.bmp");

        }

    }

 

    DesktopPlatform->OpenFileDialog(nullptr, TEXT("Open Dir"), FPaths::ConvertRelativePathToFull(FPaths::GameDir()), TEXT(""), *ExtensionStr, EFileDialogFlags::None, OpenFilenames);