Windows : utilisation de la "Non-client area"

**ashren** · 17/05/2012, 12h30

Bonjour,

je suis sous Windows 7 x64 et j'utilise PySide avec Python 3.

Par curiosité j'ai cherché à mettre en pratique la technique employée ici http://msdn.microsoft.com/en-us/libr...=vs.85%29.aspx qui permet d'enlever la zone non cliente d'une fenêtre sous Windows tout en conservant les boutons de la barre de titre.

J'ai donc cherché à intercepter les messages de la sorte

Code :

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from PySide.QtGui import QApplication, QWidget
 
class Window(QWidget):
    def __init__(self):
        QWidget.__init__(self)
 
    def winEvent(self, msg, result):
        print(msg)
        return QWidget.winEvent(self, msg, result)
 
if __name__ == '__main__':
    app = QApplication([])
    win = Window()
    win.show()
    app.exec_()

mais je n'ai pas trouvé quoi que ce soit de très utile.

Le but final et de pouvoir implémenter ce fameux DwmDefWindowProc qui permet d'avoir les boutons de la barre de titre fonctionnels tout en ayant la possibilité de dessiner sur la totalité de la fenêtre (barre de titre inclue) un peu comme le font Chrome et Firefox.

Je sais également qu'il est possible d'intercepter les évènements de l'application au niveau de la QApplication mais j'aimerai éviter de ralentir le tout en faisant un hook depuis Python.

Si quelqu'un a une piste je suis preneur.

PS: Je sais que ce genre de technique n'est absolument pas portable mais c'est juste pour savoir si c'est possible.

**VinsS** · 17/05/2012, 14h11

P'têt que ceci repondra à ta question:

http://www.developpez.net/forums/d92...s/qt-dwm-aero/

**ashren** · 17/05/2012, 16h21

Merci pour ta réponse.

Je vais tenter de convertir en Python et voir si ça donne quelque chose de concluant.

EDIT: J'ai essayé de convertir sans succès (trop de références à des fonctions issues de l'API win32).

J'ai également installé QtCreator et testé la librairie QDwm et ça ne fait pas exactement ce que je désire. Je mettrai à jour le sujet si j'arrive à quelque chose de concluant.

**ashren** · 19/05/2012, 01h07

J'ai réussi à avoir quelque chose de fonctionnel (non sans bugs) mais uniquement avec PyQt4 car PySide a un bug et il manque des attributs au paramètre msg de la méthode winEvent (donc impossibe d'aller plus loin).

Voilà ce que ça donne en terme de code

Code :

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from PyQt4.QtGui import QApplication, QWidget, QLabel
from PyQt4.QtCore import Qt
import ctypes
from ctypes.wintypes import POINT
 
WM_CREATE     = 0x0001
WM_NCCALCSIZE = 0x0083
WM_NCHITTEST  = 0x0084
 
WS_OVERLAPPED = 0x00000000L
WS_CAPTION = 0x00C00000L
WS_MINIMIZEBOX = 0x00020000L
WS_MAXIMIZEBOX = 0x00010000L
WS_THICKFRAME = 0x00040000L
WS_SYSMENU = 0x00080000L
WS_OVERLAPPEDWINDOW = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX
 
HTNOWHERE = 0
HTCAPTION = 2
HTLEFT = 10
HTRIGHT = 11
HTTOP = 12
HTTOPLEFT = 13
HTTOPRIGHT = 14
HTBOTTOM = 15
HTBOTTOMLEFT = 0x10
HTBOTTOMRIGHT = 17
 
NULL  = 0
TRUE  = 1
FALSE = 0
TOPEXTENDWIDTH = 27
BOTTOMEXTENDWIDTH = 20
LEFTEXTENDWIDTH = 8
RIGHTEXTENDWIDTH = 8
 
 
def LOWORD(dword): return dword & 0x0000ffff
def HIWORD(dword): return dword >> 16    
 
class MARGINS(ctypes.Structure):
    _fields_ = [
        ("cxLeftWidth", ctypes.c_int),
        ("cxRightWidth", ctypes.c_int),
        ("cyTopHeight", ctypes.c_int),
        ('cyBottomHeight', ctypes.c_int)
    ]
 
class WINDOWPOS(ctypes.Structure):
    _fields_ = [("hwnd", ctypes.wintypes.HWND),
                ("hwndInsertAfter", ctypes.wintypes.HWND),
                ("x", ctypes.c_int),
                ("y", ctypes.c_int),
                ("cx", ctypes.c_int),
                ("cy", ctypes.c_int),
                ("flags", ctypes.c_uint)]
 
class NCCALCSIZE_PARAMS(ctypes.Structure):
    _fields_ = [("rgrc", ctypes.wintypes.RECT * 3),
                ("lppos", WINDOWPOS)]
 
class Application(QApplication):
    def __init__(self):
        QApplication.__init__(self, [])
        self.w = Window()
        self.w.show()
 
class Window(QWidget):
    def __init__(self):
        QWidget.__init__(self)
        self.setAttribute(Qt.WA_TranslucentBackground)
        margins = MARGINS(-1, -1, -1, -1)
        _handlel = ctypes.c_int(int(self.winId()))
        ctypes.windll.dwmapi.DwmExtendFrameIntoClientArea(_handlel, ctypes.byref(margins))
        self.lbl = QLabel('test', parent=self)
        self.lbl.move(0, 0)
        self.lbl.resize(100, 30)
        self.setStyleSheet('background-color: red;')
        self.setMinimumSize(320, 240)
 
    def winEvent(self, msg):
        lRet = 0L
        _ptr = ctypes.c_int(0)
        ptr = ctypes.pointer(_ptr)
        fCallDWP = bool(ctypes.windll.dwmapi.DwmDefWindowProc(
                                ctypes.c_int(int(self.winId())),
                                ctypes.c_int(int(msg.message)),
                                ctypes.c_long(msg.wParam),
                                ctypes.c_long(msg.lParam),
                                ptr))
        lRet = ptr.contents.value
        if msg.message == WM_NCCALCSIZE and msg.wParam == TRUE:
        #    aa = ctypes.wintypes.LPARAM(msg.lParam)
        #    pncsp = ctypes.cast(ctypes.pointer(aa), ctypes.POINTER(NCCALCSIZE_PARAMS)).contents
 
        #    pncsp.rgrc[0].left   = pncsp.rgrc[0].left   + 0
        #    pncsp.rgrc[0].top    = pncsp.rgrc[0].top    + 0
        #    pncsp.rgrc[0].right  = pncsp.rgrc[0].right  - 0
        #    pncsp.rgrc[0].bottom = pncsp.rgrc[0].bottom - 0
 
            fCallDWP = True
            lRet = 0L
 
        if msg.message == WM_NCHITTEST and lRet == 0:
            lRet = HitTestNCA(ctypes.c_int(int(self.winId())), msg.wParam, msg.lParam);
            if lRet != HTNOWHERE:
                fCallDWP = True
 
        return (fCallDWP, lRet)
 
 
# Hit test the frame for resizing and moving.
def HitTestNCA(hWnd, wParam, lParam):
    # Get the point coordinates for the hit test.
    ptMouse = ctypes.wintypes.POINT(LOWORD(lParam), HIWORD(lParam))
 
    # Get the window rectangle.
    rcWindow = ctypes.wintypes.RECT()
    ctypes.windll.user32.GetWindowRect(hWnd, ctypes.pointer(rcWindow))
 
    # Get the frame rectangle, adjusted for the style without a caption.
    rcFrame = ctypes.wintypes.RECT(0)
    ctypes.windll.user32.AdjustWindowRectEx(ctypes.pointer(rcFrame), WS_OVERLAPPEDWINDOW & (not WS_CAPTION), FALSE, NULL)
 
    # Determine if the hit test is for resizing. Default middle (1,1).
    uRow = 1
    uCol = 1
    fOnResizeBorder = False
 
    # Determine if the point is at the top or bottom of the window.
    if (ptMouse.y >= rcWindow.top and ptMouse.y < rcWindow.top + TOPEXTENDWIDTH):
        fOnResizeBorder = (ptMouse.y < (rcWindow.top - rcFrame.top))
        uRow = 0
    elif (ptMouse.y < rcWindow.bottom and ptMouse.y >= rcWindow.bottom - BOTTOMEXTENDWIDTH):
        uRow = 2
 
    # Determine if the point is at the left or right of the window.
    if (ptMouse.x >= rcWindow.left and ptMouse.x < rcWindow.left + LEFTEXTENDWIDTH):
        uCol = 0
    elif (ptMouse.x < rcWindow.right and ptMouse.x >= rcWindow.right - RIGHTEXTENDWIDTH):
        uCol = 2
 
 
    # Hit test (HTTOPLEFT, ... HTBOTTOMRIGHT)
    hitTests = [
        [HTTOPLEFT, HTTOP if fOnResizeBorder else HTCAPTION, HTTOPRIGHT],
        [HTLEFT, HTNOWHERE, HTRIGHT],
        [HTBOTTOMLEFT, HTBOTTOM, HTBOTTOMRIGHT]
    ]
    return hitTests[uRow][uCol]
 
if __name__ == '__main__':
    Application().exec_()

si quelqu'un à une idée pour détecter dynamiquement les valeurs des bordures je suis preneur

EDIT: pour information, j'ai utilisé cet article http://technet.microsoft.com/en-us/query/bb688195

**ashren** · 26/07/2012, 16h29

Bonjour,

ayant décidé de me pencher à nouveau sur le sujet, j'ai converti le code C++ disponible ici http://sourceforge.net/projects/qdwm/ en pur Python3/ctypes.

Le tout non exempt de bugs évidemment (ne marche pas sur Python2 par exemple).

Je précise également que je suis en x64 donc les appels ctypes sont peut-être incorrects.

Je marque ma question comme résolue.

EDIT: Ajout du code

Code :

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import ctypes
from ctypes import wintypes
 
from PyQt4 import QtGui, QtCore
from PyQt4.QtCore import Qt
 
class WMargins(ctypes.Structure):
    _fields_ = [
        ("cxLeftWidth", ctypes.c_int),
        ("cxRightWidth", ctypes.c_int),
        ("cyTopHeight", ctypes.c_int),
        ('cyBottomHeight', ctypes.c_int)
    ]
 
WM_NCCALCSIZE = 0x0083
WM_NCHITTEST  = 0x0084
WM_NCPAINT = 133
WM_NCMOUSEMOVE = 160
WM_THEMECHANGED = 794
WM_DWMCOMPOSITIONCHANGED = 798
 
WS_OVERLAPPED = 0x00000000
WS_CAPTION = 0x00C00000
WS_MINIMIZEBOX = 0x00020000
WS_MAXIMIZEBOX = 0x00010000
WS_THICKFRAME = 0x00040000
WS_SYSMENU = 0x00080000
WS_OVERLAPPEDWINDOW = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX
 
HTNOWHERE = 0
HTCLIENT = 1
HTCAPTION = 2
HTMINBUTTON = 8
HTMAXBUTTON = 9
HTLEFT = 10
HTRIGHT = 11
HTTOP = 12
HTTOPLEFT = 13
HTTOPRIGHT = 14
HTBOTTOM = 15
HTBOTTOMLEFT = 0x10
HTBOTTOMRIGHT = 17
HTCLOSE = 20
HTHELP = 21
 
NULL = 0
TRUE  = 1
FALSE = 0
 
SWP_FRAMECHANGED = 32
 
ncHitZone = (
    (HTTOPLEFT, HTLEFT, HTLEFT, HTBOTTOMLEFT),
    (HTTOP, HTCAPTION, HTNOWHERE, HTBOTTOM),
    (HTTOPRIGHT, HTRIGHT, HTRIGHT, HTBOTTOMRIGHT)
)
 
def LOWORD(dword): return dword & 0x0000ffff
def HIWORD(dword): return dword >> 16
 
def GET_X_LPARAM(p):
    return LOWORD(p)
def GET_Y_LPARAM(p):
    return HIWORD(p)
 
class QWindowsHelper(object):
    _instance = None
 
    @classmethod
    def instance(cls):
        if not cls._instance:
            cls._instance = QWindowsHelper()
        return cls._instance
 
    def __init__(self):
        self.DwmDefWindowProc = ctypes.windll.dwmapi.DwmDefWindowProc
        self.DwmIsCompositionEnabled = ctypes.windll.dwmapi.DwmIsCompositionEnabled
        self.DwmExtendFrameIntoClientArea = ctypes.windll.dwmapi.DwmExtendFrameIntoClientArea
        self.IsThemeActive = ctypes.windll.uxtheme.IsThemeActive
 
def qWinHelper():
    return QWindowsHelper.instance()
 
def GetWindowRect(hwnd, rect):
    ctypes.windll.user32.GetWindowRect(ctypes.c_int(int(hwnd)), ctypes.byref(rect))
 
SetWindowPos = ctypes.windll.user32.SetWindowPos
AdjustWindowRectEx = ctypes.windll.user32.AdjustWindowRectEx
 
class Win(QtGui.QMainWindow):
    themeChanged = QtCore.pyqtSignal()
    compositionChanged = QtCore.pyqtSignal()
    def __init__(self):
        QtGui.QMainWindow.__init__(self)
        self.setAttribute(Qt.WA_TranslucentBackground, True)
        self.__frameRemoved = False
        self.__margins = QtCore.QMargins(0, 0, 0, 0)
        self.setBorderSize(-1)
        self.setTitleBarSize(-1)
        self.__titleBarHover = QtGui.QStyle.SC_None
        self.__titleBarState = QtGui.QStyle.State_None
 
    def winEvent(self, wMsg):
        result = 0
        hasHandled = False
        res = ctypes.c_int(0)
        _ptr = ctypes.c_int(0)
        ptr = ctypes.pointer(_ptr)
 
        if self.isAeroActivated():
            hasHandled = bool(qWinHelper().DwmDefWindowProc(ctypes.c_int(int(self.winId())),
                                                            ctypes.c_int(int(wMsg.message)),
                                                            ctypes.c_long(int(wMsg.wParam)),
                                                            ctypes.c_long(int(wMsg.lParam)),
                                                            ptr))
            res = ptr.contents.value
 
        if wMsg.message == WM_NCCALCSIZE and wMsg.wParam == TRUE and self.__frameRemoved:
            hasHandled = True
            res = 0
 
        if wMsg.message == WM_NCHITTEST and res == 0 and self.__frameRemoved:
            if not (res == HTCLOSE or res == HTMAXBUTTON or res == HTMINBUTTON or res == HTHELP):
                res = self.ncHitTest(wMsg)
 
            if res != HTNOWHERE:
                hasHandled = True
 
        if wMsg.message == WM_DWMCOMPOSITIONCHANGED or wMsg.message == WM_THEMECHANGED:
            self.updateFrame()
            if self.isAeroActivated():
                self.updateMargins()
 
            if wMsg.message == WM_DWMCOMPOSITIONCHANGED:
                self.compositionChanged.emit()
 
            self.themeChanged.emit()
 
            self.repaint()
 
        if wMsg.message == WM_NCPAINT and not self.isThemeActivated():
            hasHandled = True
 
        if wMsg.message == WM_NCMOUSEMOVE:
            cx = 0
            cy = 0
            realWin = ctypes.wintypes.RECT()
 
            GetWindowRect(wMsg.hwnd, realWin)
 
            cx = GET_X_LPARAM(wMsg.lParam) - realWin.left
            cy = GET_Y_LPARAM(wMsg.lParam) - realWin.top
 
            self.ncMouseMove(cx, cy)
 
        if hasHandled:
            result = res
        return (hasHandled, result)
        return hasHandled
 
    def isAeroActivated(self):
        isDwmEnabled = ctypes.c_bool()
        hr = ctypes.HRESULT()
 
        if QtCore.QSysInfo.WindowsVersion < QtCore.QSysInfo.WV_VISTA:
            return False
 
        hr = qWinHelper().DwmIsCompositionEnabled(ctypes.byref(isDwmEnabled))
        if hr != 0:
            return False
 
        return bool(isDwmEnabled) == True
 
    def updateMargins(self, hWnd=0):
        if hWnd == 0:
            hWnd = self.winId()
 
        mar = WMargins()
        mar.cxLeftWidth = self.__margins.left()
        mar.cxRightWidth = self.__margins.right()
        mar.cyBottomHeight = self.__margins.bottom()
        mar.cyTopHeight = self.__margins.top()
 
        if self.__frameRemoved:
            mar.cxLeftWidth += self.borderSize()
            mar.cxRightWidth += self.borderSize()
            mar.cyBottomHeight += self.borderSize()
            mar.cyTopHeight += self.titleBarSize() + self.borderSize()
 
        qWinHelper().DwmExtendFrameIntoClientArea(ctypes.c_int(int(hWnd)), ctypes.byref(mar))
 
    def setFrameRemoved(self, isRemoved):
        self.__frameRemoved = isRemoved
        self.updateFrame()
        self.updateMargins()
        self.setMouseTracking(isRemoved)
 
    def setExtraMargins(self, margins):
        self.__margins = margins
        self.updateMargins()
 
    def updateFrame(self, hWnd=0):
        if hWnd == 0:
            hWnd = self.winId()
 
        rcClient = ctypes.wintypes.RECT()
        GetWindowRect(hWnd, rcClient)
 
        SetWindowPos(ctypes.c_int(int(hWnd)), NULL, rcClient.left, rcClient.top,
            rcClient.right - rcClient.left,
            rcClient.bottom - rcClient.top, SWP_FRAMECHANGED)
 
    def ncHitTest(self, wMsg):
        cur = QtCore.QPoint(GET_X_LPARAM(wMsg.lParam), GET_Y_LPARAM(wMsg.lParam))
        xPos = 1
        yPos = 2
 
        rcWin = ctypes.wintypes.RECT()
        GetWindowRect(wMsg.hwnd, rcWin)
 
        if self.hasControls(cur.x() - rcWin.left, cur.y() - rcWin.top):
            return HTCLIENT
 
        rcFrame = ctypes.wintypes.RECT(0)
        AdjustWindowRectEx(ctypes.byref(rcFrame), WS_OVERLAPPEDWINDOW & ~WS_CAPTION, False, NULL)
 
        if cur.y() > rcWin.top and cur.y() <= rcWin.top + self.borderSize():
            yPos = 0
        elif cur.y() > rcWin.top + self.borderSize() and cur.y() <= rcWin.top + self.borderSize() + self.titleBarSize():
            yPos = 1
        elif cur.y() >= rcWin.bottom - self.borderSize() and cur.y() < rcWin.bottom:
            yPos = 3
 
        if cur.x() >= rcWin.left and cur.x() < rcWin.left + self.borderSize():
            xPos = 0
        elif cur.x() >= rcWin.right - self.borderSize() and cur.x() < rcWin.right:
            xPos = 2
 
        return ncHitZone[xPos][yPos]
 
    def setBorderSize(self, size):
        if size < 0:
            self.__borderSize = -1
        else:
            self.__borderSize = size
 
        if self.__frameRemoved:
            self.updateFrame()
            self.updateMargins()
 
    def setTitleBarSize(self, size):
        if size < 0:
            self.__titleBarSize = -1
        else:
            self.__titleBarSize = size
 
        if self.__frameRemoved:
            self.updateFrame()
            self.updateMargins()
 
    def paintEvent(self, e):
        if self.isAeroActivated():
            p = QtGui.QPainter(self)
            r = QtCore.QRect()
 
            p.setBrush(self.palette().window())
            p.setPen(Qt.NoPen)
 
            if self.__frameRemoved:
                r.setLeft(self.borderSize() + self.__margins.left())
                r.setWidth(self.width() - (2 * self.borderSize() + self.__margins.left() + self.__margins.right()))
                r.setTop(self.borderSize() + self.titleBarSize() + self.__margins.top())
                r.setHeight(self.height() - (2 * self.borderSize() + self.titleBarSize()
                    + self.__margins.top() + self.__margins.bottom()))
            else:
                r.setLeft(self.__margins.left())
                r.setWidth(self.width() - self.__margins.left() - self.__margins.right())
                r.setTop(self.__margins.top())
                r.setHeight(self.height() - self.__margins.top() - self.__margins.bottom())
 
            p.drawRect(r)
        else:
            if self.__frameRemoved:
                self.paintWinFrame()
            else:
                p = QtGui.QPainter(self)
 
                p.setBrush(self.palette().window())
                p.setPen(Qt.NoPen)
 
                p.drawRect(0, 0, self.width(), self.height())
 
    def isThemeActivated(self):
        if QtCore.QSysInfo.WindowsVersion < QtCore.QSysInfo.WV_XP:
            return False
 
        return qWinHelper().IsThemeActive() == True
 
    def paintWinFrame(self):
        p = QtGui.QStylePainter()
        p.begin(self)
 
        p.setPen(Qt.NoPen)
        p.setBrush(self.palette().window())
        p.drawRect(0, 0, self.width(), self.height())
 
        pal = self.palette()
        if self.isActiveWindow():
            pal.setCurrentColorGroup(QtGui.QPalette.Active)
        else:
            pal.setCurrentColorGroup(QtGui.QPalette.Inactive)
 
        frame = QtGui.QStyleOptionFrame()
        frame.initFrom(self)
        frame.lineWidth = self.borderSize()
 
        title = QtGui.QStyleOptionTitleBar()
        title.initFrom(self)
        if self.isThemeActivated():
            title.rect.setRect(0, 0, self.width(), self.borderSize() + self.titleBarSize())
        else:
            title.rect.setRect(self.borderSize(), self.borderSize(), self.width() - 2 * self.borderSize(),
            self.titleBarSize() + self.style().pixelMetric(QtGui.QStyle.PM_MdiSubWindowFrameWidth))
        title.state = QtGui.QStyle.State_Active if self.isActiveWindow() else QtGui.QStyle.State_None
        title.palette = pal
        title.titleBarState = title.state
        if self.isMaximized():
            title.titleBarState |= Qt.WindowMaximized
        title.subControls = title.subControls and ~QtGui.QStyle.SC_TitleBarSysMenu
        title.activeSubControls = 0
 
        p.drawPrimitive(QtGui.QStyle.PE_FrameWindow, frame)
        p.drawComplexControl(QtGui.QStyle.CC_TitleBar, title)
 
        title.subControls &= ~QtGui.QStyle.SC_TitleBarLabel
        title.titleBarFlags = self.windowFlags()
        title.activeSubControls = self.__titleBarHover
        title.state = self.__titleBarState
        if self.isThemeActivated():
            title.rect.setRect(0, 0 - self.style().pixelMetric(QtGui.QStyle.PM_MdiSubWindowFrameWidth), self.width(),
            self.style().pixelMetric(QtGui.QStyle.PM_TitleBarHeight) + self.style().pixelMetric(QtGui.QStyle.PM_MdiSubWindowFrameWidth))
        else:
            title.rect.setRect(self.borderSize(), self.borderSize(), self.width() - 2 * self.borderSize(),
            self.style().pixelMetric(QtGui.QStyle.PM_TitleBarHeight))
 
        p.drawComplexControl(QtGui.QStyle.CC_TitleBar, title)
 
        p.end()
 
    def borderSize(self):
        if self.__borderSize < 0:
            return self.style().pixelMetric(QtGui.QStyle.PM_MDIFrameWidth)
 
        return self.__borderSize
 
    def titleBarSize(self):
        return self.__titleBarSize
 
    def ncMouseMove(self, cx, cy):
        if not self.__frameRemoved or self.isAeroActivated():
            self.__titleBarHover = QtGui.QStyle.SC_None
            self.__titleBarState = QtGui.QStyle.State_None
            return
 
        title = QtGui.QStyleOptionTitleBar()
        title.initFrom(self)
        title.titleBarFlags = self.windowFlags()
        if self.isThemeActivated():
            title.rect.setRect(0, 0, self.width(), self.style().pixelMetric(QtGui.QStyle.PM_TitleBarHeight))
        else:
            title.rect.setRect(self.borderSize(), self.borderSize(), self.width() - 2 * self.borderSize(),
            self.style().pixelMetric(QtGui.QStyle.PM_TitleBarHeight))
 
        if self.style().subControlRect(QtGui.QStyle.CC_TitleBar, title, QtGui.QStyle.SC_TitleBarCloseButton, NULL).contains(cx, cy):
            if self.__titleBarHover != QtGui.QStyle.SC_TitleBarCloseButton:
                self.__titleBarHover = QtGui.QStyle.SC_TitleBarCloseButton
                self.__titleBarState = QtGui.QStyle.State_MouseOver
                self.repaint()
        elif self.style().subControlRect(QtGui.QStyle.CC_TitleBar, title, QtGui.QStyle.SC_TitleBarMaxButton, NULL).contains(cx, cy) and not self.isMaximized():
            if self.__titleBarHover != QtGui.QStyle.SC_TitleBarMaxButton:
                self.__titleBarHover = QtGui.QStyle.SC_TitleBarMaxButton
                self.__titleBarState = QtGui.QStyle.State_MouseOver
                self.repaint()
        elif self.style().subControlRect(QtGui.QStyle.CC_TitleBar, title, QtGui.QStyle.SC_TitleBarMinButton, NULL).contains(cx, cy):
            if self.__titleBarHover != QtGui.QStyle.SC_TitleBarMinButton:
                self.__titleBarHover = QtGui.QStyle.SC_TitleBarMinButton
                self.__titleBarState = QtGui.QStyle.State_MouseOver
                self.repaint()
        elif self.style().subControlRect(QtGui.QStyle.CC_TitleBar, title, QtGui.QStyle.SC_TitleBarMaxButton, NULL).contains(cx, cy) and self.isMaximized():
            if self.__titleBarHover != QtGui.QStyle.SC_TitleBarNormalButton:
                self.__titleBarHover = QtGui.QStyle.SC_TitleBarNormalButton
                self.__titleBarState = QtGui.QStyle.State_MouseOver
                self.repaint()
        else:
            if self.__titleBarHover != QtGui.QStyle.SC_None:
                self.__titleBarHover = QtGui.QStyle.SC_None
                self.__titleBarState = QtGui.QStyle.State_None
                self.repaint()
 
    def hasControls(self, cx, cy):
        title = QtGui.QStyleOptionTitleBar()
        title.initFrom(self)
        title.titleBarFlags = self.windowFlags()
        title.rect.setRect(0, 0, self.width(), self.style().pixelMetric(QtGui.QStyle.PM_TitleBarHeight))
 
        if self.style().subControlRect(QtGui.QStyle.CC_TitleBar, title, QtGui.QStyle.SC_TitleBarCloseButton, None).contains(cx, cy):
            return True
        if self.style().subControlRect(QtGui.QStyle.CC_TitleBar, title, QtGui.QStyle.SC_TitleBarMaxButton, None).contains(cx, cy):
            return True
        if self.style().subControlRect(QtGui.QStyle.CC_TitleBar, title, QtGui.QStyle.SC_TitleBarMinButton, None).contains(cx, cy):
            return True
        if self.style().subControlRect(QtGui.QStyle.CC_TitleBar, title, QtGui.QStyle.SC_TitleBarNormalButton, None).contains(cx, cy):
            return True
 
        rcWin = ctypes.wintypes.RECT()
        GetWindowRect(self.winId(), rcWin)
 
        w = QtGui.QApplication.widgetAt(cx + rcWin.left, cy + rcWin.top)
        if w != NULL and w != self:
            return True
 
        return False
 
    def ncMousePress(self, *args):
        if self.__titleBarHover != QtGui.QStyle.SC_None:
            self.__titleBarState = QtGui.QStyle.State_Sunken
            self.repaint()
 
    def ncMouseRelease(self, *args):
        if self.__titleBarState == QtGui.QStyle.State_Sunken:
            self.__titleBarState = QtGui.QStyle.State_MouseOver
            self.repaint()
 
            if self.__titleBarHover == QtGui.QStyle.SC_TitleBarCloseButton:
                self.close()
            elif self.__titleBarHover == QtGui.QStyle.SC_TitleBarMaxButton:
                self.showMaximized()
            elif self.__titleBarHover == QtGui.QStyle.SC_TitleBarMinButton:
                self.showMinimized()
            elif self.__titleBarHover == QtGui.QStyle.SC_TitleBarNormalButton:
                self.showNormal()
 
    def mousePressEvent(self, eve):
        realWin = ctypes.wintypes.RECT()
        GetWindowRect(self.winId(), realWin)
 
        self.ncMousePress(eve.globalX() - realWin.left,
            eve.globalY() - realWin.top)
 
    def mouseMoveEvent(self, eve):
        realWin = ctypes.wintypes.RECT()
        GetWindowRect(self.winId(), realWin)
 
        self.ncMouseMove(eve.globalX() - realWin.left,
            eve.globalY() - realWin.top)
 
    def mouseReleaseEvent(self, eve):
        realWin = ctypes.wintypes.RECT()
        GetWindowRect(self.winId(), realWin)
 
        self.ncMouseRelease(eve.globalX() - realWin.left,
            eve.globalY() - realWin.top)
 
    def isFrameRemoved(self):
        return self.__frameRemoved
 
    def extraMargins(self):
        return self.__margins
 
if __name__ == '__main__':
    app = QtGui.QApplication([])
    win = Win()
    win.setFrameRemoved(True)
    win.setDocumentMode(True)
    win.setTitleBarSize(win.titleBarSize() + 50)
    win.setContentsMargins(win.borderSize(), win.titleBarSize() + win.borderSize(), win.borderSize(), win.borderSize())
    btn = QtGui.QPushButton("TEST", win)
    win.setCentralWidget(btn)
    win.show()
    app.exec_()

**tyrtamos** · 26/07/2012, 17h50

Bonjour ashren,

Beau code, dont une ligne sur 2 contient des instructions que je connais pas

.

Ce code semble fonctionner sur Windows 7 64 bits / Python 2.7 si le but est d'obtenir une fenêtre avec un gros bouton qui prend toute la zone cliente, et une barre haute anormalement grande. Par contre, quand je clique sur test, il ne se passe rien.

Windows : utilisation de la "Non-client area"

PyQt Python

Vue hybride

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