彻底改版2.0

third/hotkey/frmhotkey.cpp

@@ -0,0 +1,40 @@
+#include "frmhotkey.h"
+#include "ui_frmhotkey.h"
+#include "qhotkey.h"
+#include "qdatetime.h"
+#include "qdebug.h"
+
+frmHotKey::frmHotKey(QWidget *parent) : QWidget(parent), ui(new Ui::frmHotKey)
+{
+    ui->setupUi(this);
+    this->initForm();
+}
+
+frmHotKey::~frmHotKey()
+{
+    delete ui;
+}
+
+void frmHotKey::initForm()
+{
+    //this->setWindowFlags(Qt::FramelessWindowHint);
+
+    //实例化热键类 支持各种组合形式比如 ctrl+a alt+a f2
+    QHotkey *hotkey = new QHotkey(QKeySequence("ctrl+a"), true, this);
+    connect(hotkey, SIGNAL(activated()), this, SLOT(shortcut()));
+}
+
+void frmHotKey::shortcut()
+{
+#if 1
+    //如果是最小化则显示,否则最小化
+    if (this->isMinimized()) {
+        this->showNormal();
+        this->activateWindow();
+    } else {
+        this->showMinimized();
+    }
+#else
+    ui->label->setText("activated  " + QTime::currentTime().toString("hh:mm:ss zzz"));
+#endif
+}

third/hotkey/frmhotkey.h

@@ -0,0 +1,26 @@
+#ifndef FRMHOTKEY_H
+#define FRMHOTKEY_H
+
+#include <QWidget>
+
+namespace Ui {
+class frmHotKey;
+}
+
+class frmHotKey : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit frmHotKey(QWidget *parent = 0);
+    ~frmHotKey();
+
+private:
+    Ui::frmHotKey *ui;
+
+private slots:
+    void initForm();
+    void shortcut();
+};
+
+#endif // FRMHOTKEY_H

third/hotkey/frmhotkey.ui

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>frmHotKey</class>
+ <widget class="QWidget" name="frmHotKey">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>全局热键示例</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QLabel" name="label">
+     <property name="text">
+      <string>按 ctrl+x 最小化,再次按显示</string>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignCenter</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

third/hotkey/hotkey.pro

@@ -0,0 +1,16 @@
+QT += core gui
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+greaterThan(QT_MAJOR_VERSION, 5): QT += core5compat
+
+TARGET      = hotkey
+TEMPLATE    = app
+DESTDIR     = $$PWD/../bin
+CONFIG      += warn_off
+
+SOURCES     += main.cpp
+SOURCES     += frmhotkey.cpp
+HEADERS     += frmhotkey.h
+FORMS       += frmhotkey.ui
+
+INCLUDEPATH += $$PWD/../3rd_qhotkey
+include($$PWD/../3rd_qhotkey/3rd_qhotkey.pri)

third/hotkey/main.cpp

@@ -0,0 +1,10 @@
+#include "frmhotkey.h"
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    frmHotKey w;
+    w.show();
+    return a.exec();
+}