Change renderdoccmd to be a console program on windows.

* This means it outputs natively/properly to stdout/stderr and its output can be
  redirected with pipes.
* It does mean we need to be very careful whenever it's run internally to not
  pop up a command window, which happens by default.

qrenderdoc/Code/QRDUtils.cpp

@@ -1516,7 +1516,7 @@ bool IsRunningAsAdmin()
 }
 
 bool RunProcessAsAdmin(const QString &fullExecutablePath, const QStringList &params,
-                       QWidget *parent, std::function<void()> finishedCallback)
+                       QWidget *parent, bool hidden, std::function<void()> finishedCallback)
 {
 #if defined(Q_OS_WIN32)
 
@@ -1536,7 +1536,7 @@ bool RunProcessAsAdmin(const QString &fullExecutablePath, const QStringList &par
   info.lpVerb = L"runas";
   info.lpFile = wideExe.c_str();
   info.lpParameters = wideParams.c_str();
-  info.nShow = SW_SHOWNORMAL;
+  info.nShow = hidden ? SW_HIDE : SW_SHOWNORMAL;
 
   ShellExecuteExW(&info);
 

qrenderdoc/Code/QRDUtils.h

@@ -585,7 +585,7 @@ typedef std::function<bool()> ProgressFinishedMethod;
 QStringList ParseArgsList(const QString &args);
 bool IsRunningAsAdmin();
 bool RunProcessAsAdmin(const QString &fullExecutablePath, const QStringList &params,
-                       QWidget *parent = NULL,
+                       QWidget *parent = NULL, bool hidden = false,
                        std::function<void()> finishedCallback = std::function<void()>());
 
 void RevealFilenameInExternalFileBrowser(const QString &filePath);

qrenderdoc/Windows/Dialogs/CaptureDialog.cpp

@@ -431,11 +431,11 @@ void CaptureDialog::vulkanLayerWarn_mouseClick()
         }
 
         RunProcessAsAdmin(cmd, QStringList() << lit("vulkanregister") << lit("--system"), this,
-                          [this]() { ui->vulkanLayerWarn->setVisible(false); });
+                          true, [this]() { ui->vulkanLayerWarn->setVisible(false); });
 #else
         RunProcessAsAdmin(qApp->applicationFilePath(),
                           QStringList() << lit("--install_vulkan_layer") << lit("root"), this,
-                          [this]() { ui->vulkanLayerWarn->setVisible(false); });
+                          false, [this]() { ui->vulkanLayerWarn->setVisible(false); });
 #endif
         return;
       }

qrenderdoc/Windows/Dialogs/UpdateDialog.cpp

@@ -252,9 +252,9 @@ void UpdateDialog::on_update_clicked()
 
       QDir::setCurrent(dir.absolutePath());
 
-      success = RunProcessAsAdmin(dir.absoluteFilePath(cmd), QStringList()
-                                                                 << lit("upgrade") << lit("--path")
-                                                                 << appDir.absolutePath());
+      success = RunProcessAsAdmin(
+          dir.absoluteFilePath(cmd),
+          QStringList() << lit("upgrade") << lit("--path") << appDir.absolutePath(), NULL, true);
 
       exit(0);
 

qrenderdoc/Windows/MainWindow.cpp

@@ -1019,6 +1019,9 @@ void MainWindow::SetTitle(const QString &filename)
                 .arg(lit(FULL_VERSION_STRING))
                 .arg(QString::fromLatin1(GitVersionHash));
 
+  if(IsRunningAsAdmin())
+    text += tr(" (Administrator)");
+
   if(QString::fromLatin1(RENDERDOC_GetVersionString()) != lit(MAJOR_MINOR_VERSION_STRING))
     text += tr(" - !! VERSION MISMATCH DETECTED !!");