qwert

Seeking guidance on DPI Awareness

5 posts in this topic

#1 ·  Posted (edited)

With all the new hi-pixel monitors (e.g., 1920 pixels on a laptop), more problems are showing up when users set their operating system's display scaling to 125% or 150%.

I've been investigating solutions, here and on the msdn pages. This page has a good overview: https://msdn.microsoft.com/en-us/library/windows/desktop/dn280512(v=vs.85).aspx

Among the details is this statement: "Because of DPI virtualization, if one application queries another with a different awareness level for DPI-dependent information, the system will automatically scale values to match the awareness level of the caller."

Does this mean that if an Au3 script declares itself as DPI aware and then calls another script—or runs an external application—that the called script or application will then be DPI aware? (I realize this is two different questions.)

If not, is there a way that an Au3 script can force (i.e., change) an external application to be DPI aware.

Advice from anyone with DPI experience will be greatly appreciated.  Thanks in advance.

 

 

 

 

 

Edited by qwert

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Indeed, those are the example scripts that I've been testing with.

But what I'm seeking is a higher "strategy"—if it's possible—to have DPI awareness imposed from one script onto another ... and even from an Au3 script onto an external application. Those issues are the basis of my post. And other than the one sentence on msdn, I've haven't found any references.

Thanks for your response.

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Did you try:

#AutoIt3Wrapper_Res_HiDpi=                      ;(Y/N) Compile for high DPI. Default=N

?


Signature beginning:   Wondering who uses AutoIT and what it can be used for ?
* GHAPI UDF - modest begining - comunication with GitHub REST API *
ADO.au3 UDF     POP3.au3 UDF     XML.au3 UDF    How to use IE.au3  UDF with  AutoIt v3.3.14.x  for other useful stuff click the following button

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Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind. 

My contribution (my own projects): * Debenu Quick PDF Library - UDF * Debenu PDF Viewer SDK - UDF * Acrobat Reader - ActiveX Viewer * UDF for PDFCreator v1.x.x * XZip - UDF * AppCompatFlags UDF * CrowdinAPI UDF * _WinMergeCompare2Files() * _JavaExceptionAdd() * _IsBeta() * Writing DPI Awareness App - workaround * _AutoIt_RequiredVersion() * Chilkatsoft.au3 UDF * TeamViewer.au3 UDF * JavaManagement UDF * VIES over SOAP * WinSCP UDF * GHAPI UDF - modest begining - comunication with GitHub REST API *

My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 - BETA * ADO.au3 UDF SMTP Mailer UDF *

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Wiki: Expand your knowledge - AutoIt Wiki * Collection of User Defined Functions * How to use HelpFile * Best coding practices * 

IE Related:  * How to use IE.au3  UDF with  AutoIt v3.3.14.x * Why isn't Autoit able to click a Javascript Dialog? * Clicking javascript button with no ID * IE document >> save as MHT file * IETab Switcher (by LarsJ ) * HTML Entities * _IEquerySelectorAll() (by uncommon) * 

I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

Signature last update: 2017-06-04

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You can't make another non-dpi aware program magically become DPI aware by interacting with it.

What the article stated is that it would act as if the other program were DPI aware in determining what the size of the window might be when you try to get it's size, so you'll get an incorrect size returned when using GetWindowRect (or WinGetPOS for example).


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