gdi text, asian characters

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vivik

Joined: 29 Oct 2016
Posts: 671

vivik 07 Jun 2018, 16:52

So, I just tried to render a string that contains both english and japanese characters, and used "Courier New" font for that. Both were displayed correctly. And I'm pretty sure that Courier New doesn't have any japanese support in it. Which font was used for japanese?

Code:

                        HDC dc;
                        res = pdds->GetDC(&dc);
                        if (res != DD_OK) FUCK();


                        //TEXT("Courier New")
                        //TEXT("Impact")
                        //TEXT("MS PGothic")
                        //msgothic.ttc
                        HFONT hFont = CreateFont(24,0,0,0,FW_DONTCARE,FALSE,FALSE,FALSE,DEFAULT_CHARSET,OUT_OUTLINE_PRECIS,
                CLIP_DEFAULT_PRECIS,CLEARTYPE_QUALITY, FIXED_PITCH,TEXT("Courier New"));

                        SelectObject(dc, hFont);


                        RECT rect;
                        rect.top = 0;
                        rect.left = 0;
                        rect.right = 64;
                        rect.bottom = 64;
                        //DrawTextW(dc, L"hello!", -1, &rect, DT_NOCLIP);
                        DrawTextW(dc, L"はっはっは！suckers!lWlW", -1, &rect, DT_NOCLIP);
                        pdds->ReleaseDC(dc); //it's just a number

Result:

Last edited by vivik on 07 Jun 2018, 17:05; edited 2 times in total

07 Jun 2018, 16:52

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20451
Location: In your JS exploiting you and your system

revolution 07 Jun 2018, 16:56

MS have been updating the font sets with lots of characters.

You can use the "character map" program to browse the available characters in each font.

07 Jun 2018, 16:56

vivik

Joined: 29 Oct 2016
Posts: 671

vivik 07 Jun 2018, 17:15

msgothic.ttc is 9MB, cour.ttf is 700KB, I can tell the difference without even opening them. I need to understand in which fonts windows seeks, if needed characters are missing.

07 Jun 2018, 17:15

shoorick

Joined: 25 Feb 2005
Posts: 1614
Location: Ukraine

shoorick 08 Jun 2018, 05:47

MS windows has font linking feature, some font with chinese characters is linked to the courier, and if courier font does not contain certain character the system searches linked fonts for such character.
Linking of fonts is set up in windows registry (I do not remember exact place)

08 Jun 2018, 05:47

vivik

Joined: 29 Oct 2016
Posts: 671

vivik 08 Jun 2018, 12:41

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\FontLink\SystemLink

https://docs.microsoft.com/en-us/globalization/input/font-technology

FontLink doesn't exist on my pc, maybe I can create it though. Looks kinda risky, I can break some other apps.

That same link says: "Each application and each operating system can define its own fallback font for any Unicode script range.". I wonder how though.

08 Jun 2018, 12:41

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