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PyQt-Using code to realize the form without border shadow

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.lua
Expert Cheater

Reputation: 1

Joined: 13 Sep 2018
Posts: 202

Posted: Sun Aug 16, 2020 6:00 am Post subject: PyQt-Using code to realize the form without border shadow

Code:

#coding:utf-8
'''
Created on 2015��8��1��

@author: guowu
'''
from PyQt4.QtGui import QWidget, QApplication, QPainterPath, QPainter, QBrush,\
QColor, QPen
from PyQt4.QtCore import Qt, QSize, QRect, QPoint
import sys
import math
class TestFrame(QWidget):
def __init__(self,parent=None):
super(TestFrame,self).__init__(parent)
self.setWindowFlags(Qt.FramelessWindowHint)
self.setAttribute(Qt.WA_TranslucentBackground,True)
self.setFixedSize(QSize(500,500))
self.currentPos = None

def mousePressEvent(self,event):
self.currentPos = event.pos()

def mouseMoveEvent(self,event):
self.move(QPoint(self.pos()+event.pos()-self.currentPos))

def paintEvent(self,event):
m = 9

path = QPainterPath()
path.setFillRule(Qt.WindingFill)
path.addRect(m, m, self.width()-m*2, self.height()-m*2)

painter = QPainter(self)
#painter.drawLine(QLineF)
#painter.setRenderHint(QPainter.Antialiasing, True)
painter.fillPath(path, QBrush(Qt.white))

color = QColor(100, 100, 100, 30)
#for(int i=0; i<10; i++)

for i in range(m):
path = QPainterPath()
path.setFillRule(Qt.WindingFill)
path.addRoundRect(m-i, m-i, self.width()-(m-i)*2, self.height()-(m-i)*2,1,1)
color.setAlpha(90 - math.sqrt(i)*30)
painter.setPen(QPen(color,1,Qt.SolidLine))
painter.drawRoundRect(QRect(m-i, m-i, self.width()-(m-i)*2, self.height()-(m-i)*2), 0,0)

# path = QPainterPath()
# path.setFillRule(Qt.WindingFill)
# path.addRect(m-i, m-i, self.width()-(m-i)*2, self.height()-(m-i)*2)
# color.setAlpha(90 - math.sqrt(i)*30)
# painter.setPen(QPen(color,1))
# painter.drawPath(path)

if __name__ == "__main__":
app = QApplication(sys.argv)
c = TestFrame()
c.show()
app.exec_()

Is it feasible to translate the above code to ce7.1。
Or how to use the windows API - updatelayeredwindow。

Form shadow.png

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6.35 KB

Viewed:

1665 Time(s)

Corroder
Grandmaster Cheater Supreme

Reputation: 75

Joined: 10 Apr 2015
Posts: 1668

Posted: Wed Aug 19, 2020 3:24 pm Post subject:

#1. Try using dwmapi.dll and CS_DROPSHADOW (but the form shadow is failed)

Code:

UDF1.OnMouseDown = function()
UDF1.dragNow() end

function DwmIsCompositionEnabled(en)
return executeCodeLocalEx("dwmapi.DwmIsCompositionEnabled",en)
end

function DwmExtendFrameIntoClientArea(hwnd, MARGINS)
return executeCodeLocalEx("dwmapi.DwmExtendFrameIntoClientArea", hwnd, MARGINS)
end

function DwmSetWindowAttribute(hwnd, attr, attrValue, attrSize)
return executeCodeLocalEx("dwmapi.DwmSetWindowAttribute", hwnd, attr, attrValue, attrSize)
end

function GetClassLong(hWnd, nIndex)
return executeCodeLocalEx('user32.GetClassLongA', hWnd, nIndex)
end

function SetClassLong(hWnd, nIndex, dwNewLong)
return executeCodeLocalEx('user32.SetClassLongA', hwnd, nIndex, dwNewLong)
end

function DropShadow(hwnd)
SetClassLong(hwnd, GCL_STYLE, GetClassLong(hwnd, GCL_STYLE) | CS_DROPSHADOW)
return CS_DROPSHADOW
end

CS_DROPSHADOW = 0x20000
GCL_STYLE = -26

function glassForm(hwnd, Ver, v, l, r, t, b)
DwmSetWindowAttribute(hwnd, 2, v, 4)
margins = createMemoryStream();
margins.writeDword(l) --Left)
margins.writeDword(r) --Right)
margins.writeDword(t) --Top)
margins.writeDword(b) --Bottom)
DwmIsCompositionEnabled(Ver)
DwmExtendFrameIntoClientArea(hwnd, margins.Memory)
DropShadow(hwnd)
end

UDF1.Show()
glassForm(UDF1.handle, 6.2, 2, 5, 5, 5, 5)

Also, I don't know yet how to change extended frame color as the form shadow.
Note: by setting the margins to -1 will give glass effect on the form.

#2. More easy for me

1) Create an image having the desired drop shadow using photoshop or any other tool.
2) Use this image as background image of your form.
3) Set FormBorderStyle property of the form to None.
4) You are done!

See attach image for #2 LOL!

form shadow.png

Description:

Filesize:

18.84 KB

Viewed:

1603 Time(s)

_________________

Stealing Code From Stolen Code...
And Admit It.. Hmmm....Typically LOL

.lua
Expert Cheater

Reputation: 1

Joined: 13 Sep 2018
Posts: 202

Posted: Wed Aug 19, 2020 9:05 pm Post subject:

Corroder wrote:

#1. Try using dwmapi.dll and CS_DROPSHADOW (but the form shadow is failed)

I don't know where the problem is because there is no indication of where the error is

Corroder wrote:

#2. More easy for me

1) Create an image having the desired drop shadow using photoshop or any other tool.
2) Use this image as background image of your form.
3) Set FormBorderStyle property of the form to None.
4) You are done!

See attach image for #2 LOL!

#2. in practice, the background of the form is still white

#1.png

Description:

Filesize:

428.03 KB

Viewed:

1575 Time(s)

#2.png

Description:

Filesize:

331.04 KB

Viewed:

1576 Time(s)

Corroder
Grandmaster Cheater Supreme

Reputation: 75

Joined: 10 Apr 2015
Posts: 1668

Posted: Thu Aug 20, 2020 12:20 am Post subject:

#2. > It's depend on how you create a rectangle image with drop shadow and save as a transparent image. I am using photoshop CC 2019 to create a borderless form with shadow and save as a png file, which you can see on attached image.

Code:

if f then f.destroy() end

f = createForm()
f.setSize(600,400)
f.Position = 'poScreenCenter'
f.BorderStyle = 'bsNone'

bg = createImage(f)
bg.Align = 'alClient'
bg.Stretch = true
bg.Picture.loadFromStream(findTableFile('formShadow2.png').Stream)
bg.OnMouseDown = function() f.dragNow() end

f.Show()

Also, you can try set form layered attribute to make form transparent and attach your borderless form with shadow image as form background.

EDIT:
In Delphi should be like this.

Code:

procedure TForm1.FixSysShadowOrder;

function FindSysShadowOrderProc(WindowHandle: HWND; // handle to window
Form: TForm1 // application-defined value, 32-bit
): BOOL; stdcall;
var
Buffer: array [0 .. 255] of char;
Rect: TRect;
begin
Result := True;
if IsWindowVisible(WindowHandle) then
begin
// this code search for SysShadow window created for this window.
GetClassName(WindowHandle, Buffer, 255);
if 0 <> AnsiStrComp(Buffer, PChar('SysShadow')) then
Exit;

GetWindowRect(WindowHandle, Rect);
if (Rect.Left <> Form.Left) or (Rect.Top <> Form.Top) then
Exit;

Form.FSysShadowHandle := WindowHandle;
// stop enumeration
Result := False;
end;
end;

begin
if not(csDesigning in ComponentState) and
((GetClassLong(Handle, GCL_STYLE) and CS_DROPSHADOW) = CS_DROPSHADOW)
and IsWindowVisible(Handle) then
begin
// for speed, proper SysShadow handle is cached
if FSysShadowHandle = 0 then
EnumThreadWindows(GetCurrentThreadID(), @FindSysShadowOrderProc,
lParam(Self));
// if SysShadow exists, change its z-order, and place it directly below this window
if FSysShadowHandle <> 0 then
SetWindowPos(FSysShadowHandle, Handle, 0, 0, 0, 0,
SWP_NOACTIVATE or SWP_NOMOVE or SWP_NOOWNERZORDER or SWP_NOSIZE);
end;
end;

Capture.JPG

Description:

Using an image to create borderless form with shadow

Filesize:

13.37 KB

Viewed:

1565 Time(s)

_________________

Stealing Code From Stolen Code...
And Admit It.. Hmmm....Typically LOL

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