diff --git a/.settings/org.eclipse.core.resources.prefs b/.settings/org.eclipse.core.resources.prefs index a7c1f80..cfd34c0 100644 --- a/.settings/org.eclipse.core.resources.prefs +++ b/.settings/org.eclipse.core.resources.prefs @@ -14,6 +14,7 @@ encoding//Demo/ProbeWindow.py=utf-8 encoding//Demo/QtThreading.py=utf-8 encoding//Demo/RestartWindow.py=utf-8 encoding//Demo/SharedMemory.py=utf-8 +encoding//Demo/ShowFrameWhenDrag.py=utf-8 encoding//Demo/SingleApplication.py=utf-8 encoding//Demo/VerificationCode.py=utf-8 encoding//Demo/WeltHideWindow.py=utf-8 diff --git a/Demo/README.md b/Demo/README.md index b0b87ed..a3c3cb9 100644 --- a/Demo/README.md +++ b/Demo/README.md @@ -18,6 +18,7 @@ - [使用Threading](#16、使用Threading) - [背景连线动画](#17、背景连线动画) - [无边框圆角对话框](#18、无边框圆角对话框) + - [调整窗口显示边框](#19、调整窗口显示边框) ## 1、重启窗口Widget [运行 RestartWindow.py](RestartWindow.py) @@ -181,4 +182,16 @@ PyQt 结合 Opencv 进行人脸检测; 2. 在QDialog中放置一个QWidget作为背景和圆角 3. 在QWidget中放置其他内容 -![FramelessDialog](ScreenShot/FramelessDialog.png) \ No newline at end of file +![FramelessDialog](ScreenShot/FramelessDialog.png) + +## 19、调整窗口显示边框 +[运行 ShowFrameWhenDrag.py](ShowFrameWhenDrag.py) + +1. 全局设置是【】在控制面板中->调整Windows的外观和性能->去掉勾选 拖动时显示窗口内容】 +2. 但是为了不影响其它应用,可以在窗口处理函数wndproc中对其进行判断处理 +3. 必须先要替换wndproc为自己的函数 +4. 当消息事件==WM_NCLBUTTONDOWN的时候, 先强制开启,然后处理完成后再还原 + +好处在于可以减少窗口更新的次数(用途有频繁渲染的界面) + +![ShowFrameWhenDrag](ScreenShot/ShowFrameWhenDrag.gif) \ No newline at end of file diff --git a/Demo/ScreenShot/ShowFrameWhenDrag.gif b/Demo/ScreenShot/ShowFrameWhenDrag.gif new file mode 100644 index 0000000..b06c3e4 Binary files /dev/null and b/Demo/ScreenShot/ShowFrameWhenDrag.gif differ diff --git a/Demo/ShowFrameWhenDrag.py b/Demo/ShowFrameWhenDrag.py new file mode 100644 index 0000000..a7c986e --- /dev/null +++ b/Demo/ShowFrameWhenDrag.py @@ -0,0 +1,89 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +Created on 2019年4月23日 +@author: Irony +@site: https://pyqt5.com https://github.com/892768447 +@email: 892768447@qq.com +@file: ShowFrameWhenDrag +@description: 调整窗口显示边框 +""" +from ctypes import sizeof, windll, c_int, byref, c_long, c_void_p, c_ulong, c_longlong,\ + c_ulonglong, WINFUNCTYPE, c_uint + +from PyQt5.QtWidgets import QWidget, QVBoxLayout, QLabel + + +__Author__ = 'Irony' +__Copyright__ = 'Copyright (c) 2019 Irony' +__Version__ = 1.0 + +if sizeof(c_long) == sizeof(c_void_p): + WPARAM = c_ulong + LPARAM = c_long +elif sizeof(c_longlong) == sizeof(c_void_p): + WPARAM = c_ulonglong + LPARAM = c_longlong + +WM_NCLBUTTONDOWN = 0x00a1 +GWL_WNDPROC = -4 +SPI_GETDRAGFULLWINDOWS = 38 +SPI_SETDRAGFULLWINDOWS = 37 +WNDPROC = WINFUNCTYPE(c_long, c_void_p, c_uint, WPARAM, LPARAM) + +try: + CallWindowProc = windll.user32.CallWindowProcW + SetWindowLong = windll.user32.SetWindowLongW + SystemParametersInfo = windll.user32.SystemParametersInfoW +except: + CallWindowProc = windll.user32.CallWindowProcA + SetWindowLong = windll.user32.SetWindowLongA + SystemParametersInfo = windll.user32.SystemParametersInfoA + + +def GetDragFullwindows(): + rv = c_int() + SystemParametersInfo(SPI_GETDRAGFULLWINDOWS, 0, byref(rv), 0) + return rv.value + + +def SetDragFullwindows(value): + SystemParametersInfo(SPI_SETDRAGFULLWINDOWS, value, 0, 0) + + +class Window(QWidget): + + def __init__(self, *args, **kwargs): + super(Window, self).__init__(*args, **kwargs) + layout = QVBoxLayout(self) + layout.addWidget(QLabel('拖动或者调整窗口试试看')) + + # 重点替换窗口处理过程 + self._newwndproc = WNDPROC(self._wndproc) + self._oldwndproc = SetWindowLong( + int(self.winId()), GWL_WNDPROC, self._newwndproc) + + def _wndproc(self, hwnd, msg, wparam, lparam): + if msg == WM_NCLBUTTONDOWN: + # 获取系统本身是否已经开启 + isDragFullWindow = GetDragFullwindows() + if isDragFullWindow != 0: + # 开启虚线框 + SetDragFullwindows(0) + # 系统本身处理 + ret = CallWindowProc( + self._oldwndproc, hwnd, msg, wparam, lparam) + # 关闭虚线框 + SetDragFullwindows(1) + return ret + return CallWindowProc(self._oldwndproc, hwnd, msg, wparam, lparam) + + +if __name__ == '__main__': + import sys + from PyQt5.QtWidgets import QApplication + app = QApplication(sys.argv) + w = Window() + w.show() + sys.exit(app.exec_()) diff --git a/README.md b/README.md index 9caed8c..74a2ab8 100644 --- a/README.md +++ b/README.md @@ -167,6 +167,7 @@ https://pyqt5.com 社区是专门针对PyQt5学习和提升开设的博客网站 - [简单的窗口贴边隐藏](Demo/WeltHideWindow.py) - [嵌入外部窗口](Demo/EmbedWindow.py) - [简单跟随其它窗口](Demo/FollowWindow.py) + - [调整窗口显示边框](Demo/ShowFrameWhenDrag.py) - [简单探测窗口和放大截图](Demo/ProbeWindow.py) - [无边框圆角对话框](Demo/FramelessDialog.py) - [无边框自定义标题栏窗口](Demo/FramelessWindow.py)