使用QT编写的窗口句柄查看器 Spy++，源码奉献

#include "mainwindow.h" #include "ui_mainwindow.h" #include "formdragwidget.h" #include <QtWidgets> #include <QTimer> MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); setWindowFlags(Qt::WindowCloseButtonHint); hide(); mp_timer = new QTimer(this); connect(mp_timer, SIGNAL(timeout()), this, SLOT(sl_timeOut())); mp_timer->setInterval(100); mp_formDragWidget = new FormDragWidget(ui->widget_drag); mp_formDragWidget->show(); connect(mp_formDragWidget, SIGNAL(sg_drag(bool)), this, SLOT(sl_drag(bool))); QTimer::singleShot(0, this, SLOT(sl_init())); } MainWindow::~MainWindow() { delete ui; } void MainWindow::sl_timeOut() { __GetWindowsInfo(); } void MainWindow::sl_drag(bool flg) { if (flg) { mp_timer->start(); } else { mp_timer->stop(); __BackPos(); } } void MainWindow::sl_init() { __BackPos(); show(); } void MainWindow::__GetWindowsInfo() { POINT ptCursor; GetCursorPos(&ptCursor); POINT pt2; pt2.x = ptCursor.x-10; pt2.y = ptCursor.y-10; //获取窗口句柄 HWND hWnd = WindowFromPoint(pt2); if (hWnd != 0) { if ((HWND)this->winId() == hWnd) { //----- 本程序窗口 ui->lineEdit_windowHwnd->setText(""); ui->lineEdit_windowTitle->setText(""); ui->lineEdit_windowClass->setText(""); ui->lineEdit_windowStyle->setText(""); ui->lineEdit_windowRect->setText(""); return; } if ((HWND)mp_formDragWidget->winId() == hWnd) { //----- 准星窗口 return; } //----- 获取窗口标题 TCHAR szTitle[MAX_PATH]; GetWindowText(hWnd, szTitle, MAX_PATH); //----- 获取窗口类名 TCHAR szClass[MAX_PATH]; GetClassName(hWnd, szClass, MAX_PATH); //----- 获取窗口样式 LONG style = GetWindowLong(hWnd, GWL_STYLE); //----- 获取窗口矩形 RECT rect; GetWindowRect(hWnd, &rect); QString windowsHwnd = QString("%1").arg((quintptr)hWnd, 8, 16, QLatin1Char('0')).toUpper(); QString windowsTitle = QString::fromWCharArray(szTitle); QString windowsClass = QString::fromWCharArray(szClass); QString windowsStyle = QString("%1").arg((quint32)style, 8, 16, QChar('0')).toUpper(); QString windowsRect = QString("(%1,%2)-(%3,%4) %5×%6") .arg(rect.left) .arg(rect.top) .arg(rect.right) .arg(rect.bottom) .arg(rect.right - rect.left) .arg(rect.bottom - rect.top); ui->lineEdit_windowHwnd->setText(windowsHwnd); ui->lineEdit_windowTitle->setText(windowsTitle); ui->lineEdit_windowClass->setText(windowsClass); ui->lineEdit_windowStyle->setText(windowsStyle); ui->lineEdit_windowRect->setText(windowsRect); } } void MainWindow::__BackPos() { mp_formDragWidget->move(mapToGlobal(ui->widget_drag->pos() + QPoint(9, 9))); } void MainWindow::resizeEvent(QResizeEvent *event) { __BackPos(); QWidget::resizeEvent(event); } void MainWindow::moveEvent(QMoveEvent *event) { __BackPos(); QWidget::moveEvent(event); }