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How to correctly call DwmExtendFrameIntoClientArea

 
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blankTM
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PostPosted: Thu May 07, 2020 11:31 pm    Post subject: How to correctly call DwmExtendFrameIntoClientArea Reply with quote
I tried this but it didn't work
Code:

MARGINS={
cxLeftWidth=-1,
cxRightWidth=-1,
cyTopHeight=-1,
cyBottomHeight=-1
}

executeCodeLocalEx('dwmapi.DwmExtendFrameIntoClientArea',UDF1.Handle,MARGINS)

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atom0s
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PostPosted: Thu May 07, 2020 11:44 pm    Post subject: Reply with quote
Use a memory stream instead. Try this:
Code:

local margins = createMemoryStream();
margins.writeDword(-1);
margins.writeDword(-1);
margins.writeDword(-1);
margins.writeDword(-1);

executeCodeLocalEx('dwmapi.DwmExtendFrameIntoClientArea', UDF1.Handle, margins.Memory);

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blankTM
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PostPosted: Fri May 08, 2020 12:19 am    Post subject: no effect Reply with quote
atom0s wrote:
Use a memory stream instead. Try this:
Code:

local margins = createMemoryStream();
margins.writeDword(-1);
margins.writeDword(-1);
margins.writeDword(-1);
margins.writeDword(-1);

executeCodeLocalEx('dwmapi.DwmExtendFrameIntoClientArea', UDF1.Handle, margins.Memory);



no effect
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Corroder
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PostPosted: Fri May 08, 2020 6:27 am    Post subject: Reply with quote
Not work, because value that indicates whether Desktop Window Manager (DWM) composition is not checked and set to enabled.

Check for : DwmIsCompositionEnabled (on MSDN)

Here an work example:

Code:
f = createForm(true)
f.Caption = 'Extended Frame'

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

local margins = createMemoryStream();
margins.writeDword(25)
margins.writeDword(25)
margins.writeDword(25)
margins.writeDword(25)

ver = 6.1  -- This is windows 7 (check for other windows version first)
DwmIsCompositionEnabled(ver)
executeCodeLocalEx('dwmapi.DwmExtendFrameIntoClientArea', f.Handle, margins.Memory)

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blankTM
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PostPosted: Fri May 08, 2020 7:42 am    Post subject: Reply with quote
Corroder wrote:
Not work, because value that indicates whether Desktop Window Manager (DWM) composition is not checked and set to enabled.

Check for : DwmIsCompositionEnabled (on MSDN)

Here an work example:

Code:
f = createForm(true)
f.Caption = 'Extended Frame'

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

local margins = createMemoryStream();
margins.writeDword(25)
margins.writeDword(25)
margins.writeDword(25)
margins.writeDword(25)

ver = 6.1  -- This is windows 7 (check for other windows version first)
DwmIsCompositionEnabled(ver)
executeCodeLocalEx('dwmapi.DwmExtendFrameIntoClientArea', f.Handle, margins.Memory)



I tried using executeCodeEx but it lasted for a second

QQ图片20200508213642.png
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QQ图片20200508213642.png
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Corroder
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PostPosted: Fri May 08, 2020 8:04 am    Post subject: Reply with quote
What windows version you use?.

Windows 7 version value = 6.1
Windows 8 version value = 6.2
Windows 10 version value = 10,0

You need set this windows version correctly, also try change:

Code:
f = createForm()


to

Code:
f = createForm(true)


And this another version using dwmapi.DwmExtendFrameIntoClientArea:

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

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

UDF1.Caption = 'Entended Frame'

--function SetGlass(Form, Left, Top, Right, Right)
    local margins = createMemoryStream();
    margins.writeDword(25) --Left)
    margins.writeDword(50) --Right)
    margins.writeDword(25) --Top)
    margins.writeDword(25) --Bottom)
    Ver = 6.1  -- set this windows version correctly
    DwmIsCompositionEnabled(Ver)
    --DwmExtendFrameIntoClientArea(Form.Handle, margins.Memory)
    DwmExtendFrameIntoClientArea(UDF1.Handle, margins.Memory)
--end

UDF1.Show()
--SetGlass(UDF1, 25, 25, 25, 25)


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Capture.JPG

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blankTM
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PostPosted: Fri May 08, 2020 8:28 am    Post subject: Reply with quote
Corroder wrote:
What windows version you use?.

Windows 7 version value = 6.1
Windows 8 version value = 6.2
Windows 10 version value = 10,0

You need set this windows version correctly, also try change:

Code:
f = createForm()


to

Code:
f = createForm(true)


And this another version using dwmapi.DwmExtendFrameIntoClientArea:

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

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

UDF1.Caption = 'Entended Frame'

--function SetGlass(Form, Left, Top, Right, Right)
    local margins = createMemoryStream();
    margins.writeDword(25) --Left)
    margins.writeDword(50) --Right)
    margins.writeDword(25) --Top)
    margins.writeDword(25) --Bottom)
    Ver = 6.1  -- set this windows version correctly
    DwmIsCompositionEnabled(Ver)
    --DwmExtendFrameIntoClientArea(Form.Handle, margins.Memory)
    DwmExtendFrameIntoClientArea(UDF1.Handle, margins.Memory)
--end

UDF1.Show()
--SetGlass(UDF1, 25, 25, 25, 25)





I don't quite understand why this problem occurs

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Corroder
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PostPosted: Fri May 08, 2020 2:11 pm    Post subject: Reply with quote
Note from: https://docs.microsoft.com/en-us/windows/win32/dwm/composition-ovw?redirectedfrom=MSDN

As of Windows 8, the information in this section is no longer valid. DWM can no longer be programmatically disabled, nor is it disabled when an application attempts to draw to the primary display surface. The following information applies to only Windows 7 and earlier systems.

In Windows 8, Desktop Window Manager (DWM) is always ON and cannot be disabled by end users and apps.

In Windows 8, DWM desktop composition is a core operating system component and cannot be disabled. With a few exceptions, desktop composition is always on; it’s started before the user logon and remains active for the duration of a session.

All of the options for disabling desktop composition that exist in Window 7 are removed

Apps cannot use DwmEnableComposition to disable desktop composition. In order to maintain backward compatibility, a call to this API will return success; however, desktop composition is not disabled.

So, try run code without or remove this line (if use Windows 8 or later):

Code:
DwmIsCompositionEnabled(Ver)

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blankTM
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PostPosted: Fri May 08, 2020 4:43 pm    Post subject: Reply with quote
Corroder wrote:


As of Windows 8, the information in this section is no longer valid. DWM can no longer be programmatically disabled, nor is it disabled when an application attempts to draw to the primary display surface. The following information applies to only Windows 7 and earlier systems.

In Windows 8, Desktop Window Manager (DWM) is always ON and cannot be disabled by end users and apps.

In Windows 8, DWM desktop composition is a core operating system component and cannot be disabled. With a few exceptions, desktop composition is always on; it’s started before the user logon and remains active for the duration of a session.

All of the options for disabling desktop composition that exist in Window 7 are removed

Apps cannot use DwmEnableComposition to disable desktop composition. In order to maintain backward compatibility, a call to this API will return success; however, desktop composition is not disabled.

So, try run code without or remove this line (if use Windows 8 or later):

Code:
DwmIsCompositionEnabled(Ver)


Thank you! I try to use:
package.loadlib ("dwmapi.dll", '')
very successful!

QQ图片20200509063953.png
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 Viewed:  3223 Time(s)

QQ图片20200509063953.png
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