diff --git a/TeXmacs/progs/texmacs/texmacs/tm-print.scm b/TeXmacs/progs/texmacs/texmacs/tm-print.scm
index 7c5d31b87e..7626dc5ac9 100644
--- a/TeXmacs/progs/texmacs/texmacs/tm-print.scm
+++ b/TeXmacs/progs/texmacs/texmacs/tm-print.scm
@@ -77,9 +77,10 @@
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
 (define (user-confirm-open-pdf fname)
-  (user-confirm "Open PDF?" #f
-    (lambda (open?)
-      (when open? (preview-file fname)))))
+  (user-ask (list "Open PDF?" "question-no-cancel"
+                  (translate "no") (translate "yes"))
+    (lambda (answ)
+      (when (yes? answ) (preview-file fname)))))
 
 (tm-define (wrapped-print-to-file fname)
   (system-wait "Exporting, " (translate "please wait"))
diff --git a/devel/222_43.md b/devel/222_43.md
new file mode 100644
index 0000000000..8ef54f1a96
--- /dev/null
+++ b/devel/222_43.md
@@ -0,0 +1,19 @@
+# 222_43 导出 PDF 后确认对话框选项修复
+
+## 如何测试
+1. 打开 Mogan
+2. 打开任意文档
+3. 执行：文件 -> 导出 -> Pdf
+4. 导出完成后弹出对话框
+5. 预期：只有“是/否”（或等价两项）按钮，不出现“取消”。
+
+## 2026/02/10
+### What
+- 导出 PDF 后的确认对话框仅保留两项选择。
+
+### Why
+- 原对话框出现三项选择，不符合预期交互。
+
+### How
+- Scheme 侧改用 `question-no-cancel` 类型触发对话框。
+- Qt 侧对 `question-no-cancel` 不添加 “Cancel” 按钮。
diff --git a/src/Plugins/Qt/qt_dialogues.cpp b/src/Plugins/Qt/qt_dialogues.cpp
index 7ca3bf6a98..19dd6365d2 100644
--- a/src/Plugins/Qt/qt_dialogues.cpp
+++ b/src/Plugins/Qt/qt_dialogues.cpp
@@ -269,7 +269,8 @@ qt_inputs_list_widget_rep::field (int i) {
 
 void
 qt_inputs_list_widget_rep::perform_dialog () {
-  if ((N (children) == 1) && (field (0)->type == "question")) {
+  if ((N (children) == 1) && (field (0)->type == "question" ||
+                              field (0)->type == "question-no-cancel")) {
     // then use Qt messagebox for smoother, more standard UI
     QWidget* mainwindow= QApplication::activeWindow ();
     // main texmacs window. There are probably better ways...
@@ -279,7 +280,10 @@ qt_inputs_list_widget_rep::perform_dialog () {
     QMessageBox msgBox (mainwindow);
     // sets parent widget, so that it appears at the proper location
     msgBox.setText (to_qstring (field (0)->prompt));
-    msgBox.addButton (qt_translate ("Cancel"), QMessageBox::RejectRole);
+    /// 对于 question-no-cancel，不添加取消按钮，避免出现三选项对话框。
+    bool add_cancel= (field (0)->type == "question");
+    if (add_cancel)
+      msgBox.addButton (qt_translate ("Cancel"), QMessageBox::RejectRole);
 
     // Allow any number of choices. The first one is the default.
     int                   choices= N (field (0)->proposals);
@@ -294,7 +298,8 @@ qt_inputs_list_widget_rep::perform_dialog () {
       msgBox.setDefaultButton (buttonlist[0]);
       for (int i= 0; i < choices - 1; ++i)
         QWidget::setTabOrder (buttonlist[i], buttonlist[i + 1]);
-      QWidget::setTabOrder (buttonlist[choices - 1], msgBox.escapeButton ());
+      if (add_cancel)
+        QWidget::setTabOrder (buttonlist[choices - 1], msgBox.escapeButton ());
     }
     msgBox.setWindowTitle (qt_translate ("Question"));
     msgBox.setIcon (QMessageBox::Question);