#include "HMainWindow.h"
#include <QApplication>
#ifdef Q_OS_WIN
#include <qt_windows.h>
#include <dwmapi.h>
#ifndef GET_X_LPARAM
#define GET_X_LPARAM(lParam) ((int)(short)LOWORD(lParam))
#endif
#ifndef GET_Y_LPARAM
#define GET_Y_LPARAM(lParam) ((int)(short)HIWORD(lParam))
#endif
#endif
HMainWindow::HMainWindow(QWidget *parent) : QMainWindow(parent)
{
setObjectName("HFramer");
setWindowTitle("HFramer");
setWidgetBorderless(this);
}
void HMainWindow::setWidgetBorderless(const QWidget *widget)
{
setWindowFlags( Qt::WindowMinimizeButtonHint | Qt::FramelessWindowHint);
#ifdef Q_OS_WIN
HWND hwnd = reinterpret_cast<HWND>(widget->winId());
DWORD style = GetWindowLong(hwnd, GWL_STYLE);
SetWindowLongPtr(hwnd, GWL_STYLE, style | WS_MAXIMIZEBOX | WS_THICKFRAME | WS_CAPTION);
#endif
}
bool HMainWindow::nativeEvent(const QByteArray &eventType, void *message, long *result)
{
#ifdef Q_OS_WIN
if (eventType != "windows_generic_MSG")
return false;
MSG* msg = static_cast<MSG*>(message);
QWidget* widget = QWidget::find(reinterpret_cast<WId>(msg->hwnd));
if (!widget)
return false;
switch (msg->message) {
case WM_NCCALCSIZE: {
*result = 0;
return true;
}
case WM_NCHITTEST: {
const LONG borderWidth = 9;
RECT winrect;
GetWindowRect(msg->hwnd, &winrect);
long x = GET_X_LPARAM(msg->lParam);
long y = GET_Y_LPARAM(msg->lParam);
// bottom right
if (x < winrect.right && x >= winrect.right - borderWidth &&
y < winrect.bottom && y >= winrect.bottom - borderWidth)
{
*result = HTBOTTOMRIGHT;
return true;
}
return false;
}
case WM_GETMINMAXINFO: {
if (::IsZoomed(msg->hwnd)) {
RECT frame = { 0, 0, 0, 0 };
AdjustWindowRectEx(&frame, WS_OVERLAPPEDWINDOW, FALSE, 0);
frame.left = abs(frame.left);
frame.top = abs(frame.bottom);
widget->setContentsMargins(frame.left, frame.top, frame.right, frame.bottom);
}
else {
widget->setContentsMargins(0, 0, 0, 0);
}
*result = ::DefWindowProc(msg->hwnd, msg->message, msg->wParam, msg->lParam);
return true;
}
break;
default:
break;
}
#endif
return QMainWindow::nativeEvent(eventType, message, result);
}
这样可以实现系统的虚框,重新写nativeEvent方法