1. 实现支付过程中置顶窗口

.gitignore

@@ -68,5 +68,4 @@ Thumbs.db
 
 # Binaries
 # --------
-
-
+*.exe

bin/测试数据.txt

+{
+{
+    "business_date": "20171214",
+    "clientReqCount": 1,
+    "operator_id": "001",
+    "partnerId": "1371",
+    "reqtype": 72,
+    "station_id": "1",
+    "store_id": "fm99999",
+    "trans_id": "201712140003",
+    "transactions": [
+        {
+            "amount": 2,
+            "code": "134638432582236320",
+            "products": [
+                {
+                    "consume_num": 1,
+                    "pid": "0079020",
+                    "price": 1000
+                },
+                {
+                    "consume_num": 1,
+                    "pid": "0077842",
+                    "price": 8000
+                }
+            ],
+            "undis_amount": 0
+        }
+    ],
+    "ver": 2,
+	"checkValue":32.12
+}
\ No newline at end of file

main.cpp

@@ -9,7 +9,7 @@ int main(int argc, char *argv[])
     Widget w;
     QFmClient client;
     QObject::connect(&client,&QFmClient::HideUi, &w, &Widget::hide,Qt::QueuedConnection);
-    QObject::connect(&client,&QFmClient::ShowUi, &w, &Widget::show,Qt::QueuedConnection);
+    QObject::connect(&client,&QFmClient::ShowUi, &w, &Widget::showTop,Qt::QueuedConnection);
     client.start();
     return a.exec();
 }

widget.cpp

@@ -3,6 +3,8 @@
 
 #include <QPixmap>
 #include <QPropertyAnimation>
+#include <Windows.h>
+#pragma comment(lib, "user32.lib")
 
 Widget::Widget(QWidget *parent) :
     QWidget(parent),
@@ -43,3 +45,28 @@ void Widget::move()
         animation->start();
     }
 }
+
+//void Widget::showTop()
+//{
+//    hide();
+//    Qt::WindowFlags wf = windowFlags();
+//    wf = wf | Qt::WindowStaysOnTopHint;
+//    setWindowFlags(wf);
+//    showNormal();
+//    //show();
+//}
+
+void Widget::showTop()
+{
+    showNormal();
+    HWND hForeWnd = ::GetForegroundWindow();
+    DWORD dwForeID = ::GetWindowThreadProcessId(hForeWnd,NULL);
+    DWORD dwCurID = ::GetCurrentThreadId();
+    ::AttachThreadInput(dwCurID,dwForeID,TRUE);
+    ::SetForegroundWindow((HWND)effectiveWinId());
+    ::SetWindowPos( (HWND)effectiveWinId(), HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
+    showNormal();
+    ::SetForegroundWindow((HWND)effectiveWinId());
+    ::AttachThreadInput(dwCurID,dwForeID,FALSE);
+    QWidget::show();
+}

widget.h

@@ -15,6 +15,7 @@ class Widget : public QWidget
 public:
     explicit Widget(QWidget *parent = 0);
     ~Widget();
+    void showTop();
 
 protected slots:
     void move();