diff --git a/src/duckstation-qt/achievementsettingswidget.cpp b/src/duckstation-qt/achievementsettingswidget.cpp
index 3bf1cce75..d80d9444c 100644
--- a/src/duckstation-qt/achievementsettingswidget.cpp
+++ b/src/duckstation-qt/achievementsettingswidget.cpp
@@ -220,8 +220,7 @@ void AchievementSettingsWidget::onLoginLogoutPressed()
   }
 
   AchievementLoginDialog login(this, Achievements::LoginRequestReason::UserInitiated);
-  int res = login.exec();
-  if (res == QDialog::Rejected)
+  if (login.exec() == QDialog::Rejected)
     return;
 
   updateLoginState();
diff --git a/src/duckstation-qt/controllerbindingwidgets.cpp b/src/duckstation-qt/controllerbindingwidgets.cpp
index a97268ca5..fc1e88e85 100644
--- a/src/duckstation-qt/controllerbindingwidgets.cpp
+++ b/src/duckstation-qt/controllerbindingwidgets.cpp
@@ -401,7 +401,7 @@ bool ControllerBindingWidget::doMultipleDeviceAutomaticBinding(QWidget* parent,
   connect(&bb, &QDialogButtonBox::rejected, &dialog, &QDialog::reject);
   layout->addWidget(&bb);
 
-  if (dialog.exec() == 0)
+  if (dialog.exec() == QDialog::Rejected)
     return false;
 
   auto lock = Host::GetSettingsLock();
diff --git a/src/duckstation-qt/debuggerwindow.cpp b/src/duckstation-qt/debuggerwindow.cpp
index 934b87add..051db92a3 100644
--- a/src/duckstation-qt/debuggerwindow.cpp
+++ b/src/duckstation-qt/debuggerwindow.cpp
@@ -186,7 +186,7 @@ void DebuggerWindow::onFollowAddressTriggered()
 void DebuggerWindow::onAddBreakpointTriggered()
 {
   DebuggerAddBreakpointDialog dlg(this);
-  if (!dlg.exec())
+  if (dlg.exec() == QDialog::Rejected)
     return;
 
   addBreakpoint(dlg.getType(), dlg.getAddress());
diff --git a/src/duckstation-qt/gamecheatsettingswidget.cpp b/src/duckstation-qt/gamecheatsettingswidget.cpp
index b172bc4ea..a4f0653ca 100644
--- a/src/duckstation-qt/gamecheatsettingswidget.cpp
+++ b/src/duckstation-qt/gamecheatsettingswidget.cpp
@@ -635,7 +635,7 @@ void GameCheatSettingsWidget::newCode()
 {
   Cheats::CodeInfo new_code;
   CheatCodeEditorDialog dlg(this, &new_code, getGroupNames());
-  if (!dlg.exec())
+  if (dlg.exec() == QDialog::Rejected)
   {
     // cancelled
     return;
@@ -653,7 +653,7 @@ void GameCheatSettingsWidget::editCode(const std::string_view code_name)
     return;
 
   CheatCodeEditorDialog dlg(this, code, getGroupNames());
-  if (!dlg.exec())
+  if (dlg.exec() == QDialog::Rejected)
   {
     // no changes
     return;
@@ -949,7 +949,7 @@ void CheatCodeEditorDialog::onRangeMaxChanged(int value)
 void CheatCodeEditorDialog::onEditChoiceClicked()
 {
   GameCheatCodeChoiceEditorDialog dlg(this, m_new_options);
-  if (dlg.exec())
+  if (dlg.exec() == QDialog::Accepted)
     m_new_options = dlg.getNewOptions();
 }
 
diff --git a/src/duckstation-qt/graphicssettingswidget.cpp b/src/duckstation-qt/graphicssettingswidget.cpp
index 2edce53ec..005e028e0 100644
--- a/src/duckstation-qt/graphicssettingswidget.cpp
+++ b/src/duckstation-qt/graphicssettingswidget.cpp
@@ -1331,7 +1331,7 @@ void GraphicsSettingsWidget::onTextureReplacementOptionsClicked()
     idlg.setLabelText(tr("Texture Replacement Configuration (config.yaml)"));
     idlg.setTextValue(QString::fromStdString(config.ExportToYAML(false)));
     idlg.setOkButtonText(tr("Save"));
-    if (idlg.exec())
+    if (idlg.exec() != QDialog::Rejected)
     {
       const QString path = QFileDialog::getSaveFileName(&dlg, tr("Save Configuration"), QString(),
                                                         tr("Configuration Files (config.yaml)"));
diff --git a/src/duckstation-qt/inputbindingwidgets.cpp b/src/duckstation-qt/inputbindingwidgets.cpp
index 155b3aec2..911a57f75 100644
--- a/src/duckstation-qt/inputbindingwidgets.cpp
+++ b/src/duckstation-qt/inputbindingwidgets.cpp
@@ -471,7 +471,7 @@ void InputVibrationBindingWidget::onClicked()
   input_dialog.setComboBoxEditable(false);
   input_dialog.setComboBoxItems(std::move(input_options));
   input_dialog.setTextValue(current);
-  if (input_dialog.exec() == 0)
+  if (input_dialog.exec() == QDialog::Rejected)
     return;
 
   const QString new_value(input_dialog.textValue());
diff --git a/src/duckstation-qt/mainwindow.cpp b/src/duckstation-qt/mainwindow.cpp
index ed0361cd9..d04e8b627 100644
--- a/src/duckstation-qt/mainwindow.cpp
+++ b/src/duckstation-qt/mainwindow.cpp
@@ -697,7 +697,7 @@ std::string MainWindow::getDeviceDiscPath(const QString& title)
   input_dialog.setOptions(QInputDialog::UseListViewForComboBoxItems);
   input_dialog.setComboBoxEditable(false);
   input_dialog.setComboBoxItems(std::move(input_options));
-  if (input_dialog.exec() == 0)
+  if (input_dialog.exec() == QDialog::Rejected)
     return ret;
 
   const int selected_index = input_dialog.comboBoxItems().indexOf(input_dialog.textValue());
@@ -1065,7 +1065,7 @@ const GameList::Entry* MainWindow::resolveDiscSetEntry(const GameList::Entry* en
   const int res = dlg.exec();
   lock.lock();
 
-  return res ? GameList::GetEntryForPath(dlg.getSelectedDiscPath()) : nullptr;
+  return res == QDialog::Accepted ? GameList::GetEntryForPath(dlg.getSelectedDiscPath()) : nullptr;
 }
 
 std::shared_ptr<SystemBootParameters> MainWindow::getSystemBootParameters(std::string file)
diff --git a/src/duckstation-qt/memorycardeditorwindow.cpp b/src/duckstation-qt/memorycardeditorwindow.cpp
index fe1744132..902071e3a 100644
--- a/src/duckstation-qt/memorycardeditorwindow.cpp
+++ b/src/duckstation-qt/memorycardeditorwindow.cpp
@@ -721,13 +721,10 @@ MemoryCardRenameFileDialog::~MemoryCardRenameFileDialog() = default;
 std::string MemoryCardRenameFileDialog::promptForNewName(QWidget* parent, std::string_view old_name)
 {
   MemoryCardRenameFileDialog dlg(parent, old_name);
+  if (dlg.exec() == QDialog::Rejected)
+    return {};
 
-  std::string ret;
-  if (dlg.exec() != 1)
-    return ret;
-
-  ret = dlg.m_ui.fullFilename->text().toStdString();
-  return ret;
+  return dlg.m_ui.fullFilename->text().toStdString();
 }
 
 void MemoryCardRenameFileDialog::setupAdditionalUi()