GetCurrentConsoleFont(...) always returns size {0,16}

[vladdeSV]

The API call to GetCurrentConsoleFont(...) always yields a size of {0,16} (consoleFontInfo.dwFontSize)

Environment

Windows build number: 10.0.18363.0
Windows Terminal version: 1.0.1401.0

Steps to reproduce

1. Compile the following C++ program

#include <windows.h>
#include <iostream>

int main()
{
	HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);

	CONSOLE_FONT_INFO consoleFontInfo;
	GetCurrentConsoleFont(hStdOut, FALSE, &consoleFontInfo);

	std::cout << "Font Size: {" << consoleFontInfo.dwFontSize.X << "," << consoleFontInfo.dwFontSize.Y << "}" << std::endl;
}

2. Run the program in Terminal with either CMD or Powershell
3. The output is always {0,16}, regardless of fontSize in settings.json

Expected behavior

As with regular cmd.exe and powershell.exe I would expect the output to display some reasonable data

Actual behavior

The size outputted is always {0,16}, regardless of settings.

[DHowett]

This is by design. The process is isolated from the Terminal just like it would be if it were over SSH. There is no font in SSH.

Giving the console application access to the font information was a big mistake, so we are only providing bare-minimum compatibility for this API.

What is your use case?

[vladdeSV]

Before I resize the console in-app I use GetSystemMetrics(…) to get the minimum size of the console in pixels.

I then calculate how wide and tall the console would be in pixels based on the font size, and then check If the console can be set to that size.

See code here.