Select Update Anniversary Features - Working Example

[ocertain52]

Fixed it.

``
// Compiled with gcc-12.2.0-mingw-w64ucrt-10.0.0-r4
// gcc -o vts vts.c Where vts.c = source file name

// System headers
#include <windows.h>

// Standard library C-style
#include <wchar.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

#define ESC "\x1b"
#define CSI "\x1b["

int main(void);
bool EnableVTMode(void);
void PrintVerticalBorder(void);
void PrintHorizontalBorder(COORD const Size, bool fIsTop);
void PrintStatusLine(const char* const pszMessage, COORD const Size);

int main()
{
//First, enable VT mode
bool fSuccess = EnableVTMode();
if (!fSuccess)
{
printf("Unable to enter VT processing mode. Quitting.\n");
return -1;
}
HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
if (hOut == INVALID_HANDLE_VALUE)
{
printf("Couldn't get the console handle. Quitting.\n");
return -1;
}

CONSOLE_SCREEN_BUFFER_INFO ScreenBufferInfo;
GetConsoleScreenBufferInfo(hOut, &ScreenBufferInfo);
COORD Size;
Size.X = ScreenBufferInfo.srWindow.Right - ScreenBufferInfo.srWindow.Left + 1;
Size.Y = ScreenBufferInfo.srWindow.Bottom - ScreenBufferInfo.srWindow.Top + 1;

// Enter the alternate buffer
printf(CSI "?1049h");

// Clear screen, tab stops, set, stop at columns 16, 32
printf(CSI "1;1H");
printf(CSI "2J"); // Clear screen

int iNumTabStops = 4; // (0, 20, 40, width)
printf(CSI "3g"); // clear all tab stops
printf(CSI "1;20H"); // Move to column 20
printf(ESC "H"); // set a tab stop

printf(CSI "1;40H"); // Move to column 40
printf(ESC "H"); // set a tab stop

// Set scrolling margins to 3, h-2
printf(CSI "3;%dr", Size.Y - 2);
int iNumLines = Size.Y - 4;

printf(CSI "1;1H");
printf(CSI "102;30m");
printf("Windows 10 Anniversary Update - VT Example");
printf(CSI "0m");

// Print a top border - Yellow
printf(CSI "2;1H");
PrintHorizontalBorder(Size, true);

// // Print a bottom border
printf(CSI "%d;1H", Size.Y - 1);
PrintHorizontalBorder(Size, false);

wchar_t wch;

// draw columns
printf(CSI "3;1H");
int line = 0;
for (line = 0; line < iNumLines * iNumTabStops; line++)
{
    PrintVerticalBorder();
    if (line + 1 != iNumLines * iNumTabStops) // don't advance to next line if this is the last line
        printf("\t"); // advance to next tab stop

}

PrintStatusLine("Press any key to see text printed between tab stops.", Size);
wch = _getwch();

// Fill columns with output
printf(CSI "3;1H");
for (line = 0; line < iNumLines; line++)
{
    int tab = 0;
    for (tab = 0; tab < iNumTabStops - 1; tab++)
    {
        PrintVerticalBorder();
        printf("line=%d", line);
        printf("\t"); // advance to next tab stop
    }
    PrintVerticalBorder();// print border at right side
    if (line + 1 != iNumLines)
        printf("\t"); // advance to next tab stop, (on the next line)
}

PrintStatusLine("Press any key to demonstrate scroll margins", Size);
wch = _getwch();

printf(CSI "3;1H");
for (line = 0; line < iNumLines * 2; line++)
{
    printf(CSI "K"); // clear the line
    int tab = 0;
    for (tab = 0; tab < iNumTabStops - 1; tab++)
    {
        PrintVerticalBorder();
        printf("line=%d", line);
        printf("\t"); // advance to next tab stop
    }
    PrintVerticalBorder(); // print border at right side
    if (line + 1 != iNumLines * 2)
    {
        printf("\n"); //Advance to next line. If we're at the bottom of the margins, the text will scroll.
        printf("\r"); //return to first col in buffer
    }
}

PrintStatusLine("Press any key to exit", Size);
wch = _getwch();

// Exit the alternate buffer
printf(CSI "?1049l");

return 0;

}

bool EnableVTMode()
{
// Set output mode to handle virtual terminal sequences
HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
if (hOut == INVALID_HANDLE_VALUE)
{
return false;
}

DWORD dwMode = 0;
if (!GetConsoleMode(hOut, &dwMode))
{
    return false;
}

dwMode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING;
if (!SetConsoleMode(hOut, dwMode))
{
    return false;
}
return true;

}

void PrintVerticalBorder()
{
printf(ESC "(0"); // Enter Line drawing mode
printf(CSI "104;93m"); // bright yellow on bright blue
printf("x"); // in line drawing mode, \x78 -> \u2502 "Vertical Bar"
printf(CSI "0m"); // restore color
printf(ESC "(B"); // exit line drawing mode
}

void PrintHorizontalBorder(COORD const Size, bool fIsTop)
{
printf(ESC "(0"); // Enter Line drawing mode
printf(CSI "104;93m"); // Make the border bright yellow on bright blue
printf(fIsTop ? "l" : "m"); // print left corner

for (int i = 1; i < Size.X - 1; i++)
    printf("q"); // in line drawing mode, \x71 -> \u2500 "HORIZONTAL SCAN LINE-5"

printf(fIsTop ? "k" : "j"); // print right corner
printf(CSI "0m");
printf(ESC "(B"); // exit line drawing mode

}

void PrintStatusLine(const char* const pszMessage, COORD const Size)
{
printf(CSI "%d;1H", Size.Y);
printf(CSI "K"); // clear the line
printf(pszMessage);
}

---

You're welcome. :)

Document Details

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• ID: fc536527-f75d-5a03-7b5a-338a08e40d2f
• Version Independent ID: 097f43d9-243f-466e-1f99-6cfa1f4bfb1f
• Content: Console Virtual Terminal Sequences - Windows Console
• Content Source: docs/console-virtual-terminal-sequences.md
• Product: windows
• Technology: windows-console
• GitHub Login: @miniksa
• Microsoft Alias: miniksa