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yutsuo 4 years ago
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  1. 4
      .gitignore
  2. 12
      bool-test.c
  3. 123
      cursor-test.c
  4. 27
      detect-key.c
  5. 182
      features-showcase.c
  6. 30
      kbhitzzor.c
  7. 45
      key-reader.c
  8. 38
      main.c
  9. 37
      sgr-terminal-sequences.c

4
.gitignore vendored
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.vscode
*.obj
*.pdb
*.exe

12
bool-test.c
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#include <stdio.h>
#include <stdbool.h>
int main(int argc, char const *argv[])
{
bool mark[2] = {'X','O'};
int test = mark;
printf("mark: %c", test);
printf("\nnot-mark: %c", !test);
return 0;
}

123
cursor-test.c
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// System headers
#include <windows.h>
// Standard library C-style
#include <wchar.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <conio.h>
#define ESC "\x1b"
#define CSI "\x1b["
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 gibberish()
{
system("cls");
printf(CSI "1;32m");
printf("HELLO THERE\n");
printf("WHAT IF\n");
printf("YOU COULD\n");
printf("MOVE THE CURSOR\n");
}
int get_key()
{
int c = getch();
switch (c)
{
case 0:
return getch() + 256;
case 224:
return getch() + 512;
}
return c;
}
void printGrid()
{
printf("%s", " _ _ _ \n");
printf("%s", "|_|_|_|\n");
printf("%s", "|_|_|_|\n");
printf("%s", "|_|_|_|\n");
}
// int main()
// {
// system("clear");
// printf(CSI "1;32m");
// printf("HELLO THERE\n");
// printf("WHAT IF\n");
// printf("YOU COULD\n");
// printf("MOVE THE CURSOR\n");
// // printf(CSI "2;2H");
// printf(CSI "1C");
// _getch();
// }
// ┌─┬─┬─┐
// │
// └─┴─┴─┘
int main(int argc, char const *argv[])
{
EnableVTMode();
system("clear");
// gibberish();
printGrid();
printf(CSI "2;2H");
int key = 0;
for (;;)
{
if (kbhit())
{
key = get_key();
switch (key)
{
case 584:
printf(CSI "1A"); //up
break;
case 592:
printf(CSI "1B"); //down
break;
case 589:
printf(CSI "1C"); //right
break;
case 587:
printf(CSI "1D"); //left
break;
case 32:
printf("X");
break;
default:
break;
}
}
}
return 0;
}

27
detect-key.c
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#include <stdio.h>
int main()
{
char ch;
//infinite loop
while(1)
{
printf("Enter any character: ");
//read a single character
ch=fgetc(stdin);
if(ch==0x0A)
{
printf("ENTER KEY is pressed.\n");
break;
}
else
{
printf("%c is pressed.\n",ch);
}
//read dummy character to clear
//input buffer, which inserts after character input
ch=getchar();
}
return 0;
}

182
features-showcase.c
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// 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["
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);
}
int __cdecl wmain(int argc, WCHAR* argv[])
{
argc; // unused
argv; // unused
//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");
}

30
kbhitzzor.c
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#include <stdio.h>
#include <conio.h>
int notmain()
{
char c='N'; //N is assigned to c
for(;;) //infinite loop
{
printf("%c\t",c); //N is printed over and over
if(_kbhit()) //until a key is hit, the keyvalue is stored in the buffer
{
c=_getch(); //c is fed the value from the buffer. The program does not pause here
printf("%c",c); //print the key
break; //break the loop
}
}
_getch(); //yes, the program does pause here.
return 0;
}
int main()
{
/* Display message until key is pressed. */
while( !_kbhit() )
_cputs( "Hit me!! " );
/* Use _getch to throw key away. */
printf( "\nKey struck was '%c'\n", _getch() );
}

45
key-reader.c
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#include <stdio.h>
#include <conio.h>
int get_key()
{
int c=getch();
switch(c)
{
case 0: return getch()+256;
case 224: return getch()+512;
}
return c;
}
int main(int argc, char const *argv[])
{
int key = 0;
for(;;)
{
if (kbhit())
{
key = get_key();
printf("\n%d", key);
switch (key)
{
case 584:
printf("\n↑");
break;
case 592:
printf("\n↓");
break;
case 587:
printf("\n←");
break;
case 589:
printf("\n→");
break;
default:
break;
}
}
}
return 0;
}

38
main.c
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#include <stdio.h>
int charFunctions()
{
char c;
printf("Enter character: ");
c = getchar();
printf("Character entered: ");
if (c == '\n')
printf("\\n\n");
else
putchar(c);
printf("\n");
return (0);
}
int renderKinda()
{
char ender = 0;
while (!ender)
{
printf("%s", " _ _ _ \n");
printf("%s", "|_|_|_|\n");
printf("%s", "|_|_|_|\n");
printf("%s", "|_|_|_|\n");
printf("press ENTER to exit:");
ender = getchar();
}
return 0;
}
int main(int argc, char const *argv[])
{
return 0;
}

37
sgr-terminal-sequences.c
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#include <stdio.h>
#include <wchar.h>
#include <windows.h>
int main()
{
// Set output mode to handle virtual terminal sequences
HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
if (hOut == INVALID_HANDLE_VALUE)
{
return GetLastError();
}
DWORD dwMode = 0;
if (!GetConsoleMode(hOut, &dwMode))
{
return GetLastError();
}
dwMode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING;
if (!SetConsoleMode(hOut, dwMode))
{
return GetLastError();
}
// Try some Set Graphics Rendition (SGR) terminal escape sequences
wprintf(L"\x1b[31mThis text has a red foreground using SGR.31.\r\n");
wprintf(L"\x1b[1mThis text has a bright (bold) red foreground using SGR.1 to affect the previous color setting.\r\n");
wprintf(L"\x1b[mThis text has returned to default colors using SGR.0 implicitly.\r\n");
wprintf(L"\x1b[34;46mThis text shows the foreground and background change at the same time.\r\n");
wprintf(L"\x1b[0mThis text has returned to default colors using SGR.0 explicitly.\r\n");
wprintf(L"\x1b[31;32;33;34;35;36;101;102;103;104;105;106;107mThis text attempts to apply many colors in the same command. Note the colors are applied from left to right so only the right-most option of foreground cyan (SGR.36) and background bright white (SGR.107) is effective.\r\n");
wprintf(L"\x1b[39mThis text has restored the foreground color only.\r\n");
wprintf(L"\x1b[49mThis text has restored the background color only.\r\n");
return 0;
}
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