FILLATT.C
/******************************************************************************\
* This is a part of the Microsoft Source Code Samples.
* Copyright 1993 - 1998 Microsoft Corporation.
* All rights reserved.
* This source code is only intended as a supplement to
* Microsoft Development Tools and/or WinHelp documentation.
* See these sources for detailed information regarding the
* Microsoft samples programs.
\******************************************************************************/
#include <windows.h>
#include <stdio.h>
#include <string.h>
#include "console.h"
#pragma setlocale(".1252")
/* number of colors in the color bar */
#define MAXCOLORS 16
/* horizontal size in characters of the sample text area */
#define SAMPTEXTX 33
/* veritcal size in characters of the sample text area */
#define SAMPTEXTY 5
/********************************************************************
* FUNCTION: demoFillAtt(HANDLE hConOut) *
* *
* PURPOSE: demonstrate FillConsoleOutputAttribute and *
* WriteConsoleOutputCharacter. Create a console version of *
* the "ScreenSize..." menu item from the console system *
* menu. Allow the user to select a foreground and *
* background color, which will be immediately displayed in *
* the sample text box *
* *
* INPUT: the console output handle to write to *
********************************************************************/
void demoFillAtt(HANDLE hConOut)
{
COORD foregLoc = {5, 5}; /* foreground 'button' location */
COORD backgLoc = {5, 7}; /* background 'button' location */
COORD okLoc = {20, 5}; /* ok 'button' location */
COORD colorbarLoc = {6, 10}; /* loc of first color in colorbar */
COORD sampleLoc = {5, 13}; /* sample text location */
COORD dwBufCoord; /* temp COORD structure */
BOOL bSuccess;
PCHAR szForeg = " Screen Text"; /* foreground 'button' and text */
PCHAR szBackg = " Screen Background"; /* background 'button' */
PCHAR szOk = " OK"; /* OK 'button' */
/* these strings are the box around the color bar */
PCHAR szColors1 = " ";
PCHAR szColors2 = " ";
PCHAR szColors3 = " ";
WORD wButtonColor; /* holds the button 'color' */
DWORD dwCharsWritten;
WORD i;
INPUT_RECORD inputBuf;
DWORD cInputEvents;
BOOL bForeground; /* state flag: foreground button active? */
COORD wCurPos;
HANDLE hStdIn;
/* arraw of attributes to put in the colorbar, each attribute in 2 spaces */
WORD szAttr[MAXCOLORS * 2];
PCHAR szSampText = "A console consists of a keyboard and mouse input buffer"
" and one or more screen buffers. \"CONIN$\" refers to the"
" input buffer. Stdin is a handle to \"CONIN$\". \"CONOUT$\""
" refers to a screen buffer.";
PCHAR p;
WORD wCurSampAttr; /* current attribute of the sample text area */
setConTitle(__FILE__);
/* place our "buttons" and text on the screen. First the 'foreground' */
/* button... */
bSuccess = WriteConsoleOutputCharacter(hConOut, szForeg, strlen(szForeg),
foregLoc, &dwCharsWritten);
/* now the 'background' button */
PERR(bSuccess, "WriteConsoleOutputCharacter");
bSuccess = WriteConsoleOutputCharacter(hConOut, szBackg, strlen(szBackg),
backgLoc, &dwCharsWritten);
/* place the 'OK' button */
PERR(bSuccess, "WriteConsoleOutputCharacter");
bSuccess = WriteConsoleOutputCharacter(hConOut, szOk, strlen(szOk),
okLoc, &dwCharsWritten);
PERR(bSuccess, "WriteConsoleOutputCharacter");
/* now let's draw a boxed colorbar */
dwBufCoord = colorbarLoc;
/* move up and left one to draw a box around the colorbar */
dwBufCoord.X--;
dwBufCoord.Y--;
/* the top of the box */
bSuccess = WriteConsoleOutputCharacter(hConOut, szColors1, strlen(szColors1),
dwBufCoord, &dwCharsWritten);
PERR(bSuccess, "WriteConsoleOutputCharacter");
dwBufCoord.Y++;
/* the middle of the box */
bSuccess = WriteConsoleOutputCharacter(hConOut, szColors2, strlen(szColors2),
dwBufCoord, &dwCharsWritten);
PERR(bSuccess, "WriteConsoleOutputCharacter");
dwBufCoord.Y++;
/* the bottom of the box */
bSuccess = WriteConsoleOutputCharacter(hConOut, szColors3, strlen(szColors3),
dwBufCoord, &dwCharsWritten);
PERR(bSuccess, "WriteConsoleOutputCharacter");
/* color the "buttons" a different color */
wButtonColor = FOREGROUND_WHITE | BACKGROUND_WHITE;
/* color the 'backgroud' button */
bSuccess = WriteConsoleOutputAttribute(hConOut, &wButtonColor,
1, backgLoc, &dwCharsWritten);
PERR(bSuccess, "WriteConsoleOutputAttribute");
/* color the 'OK' button */
bSuccess = WriteConsoleOutputAttribute(hConOut, &wButtonColor,
1, okLoc, &dwCharsWritten);
PERR(bSuccess, "WriteConsoleOutputAttribute");
/* color the 'foreground' button, but with a different color */
wButtonColor = BACKGROUND_WHITE;
bSuccess = WriteConsoleOutputAttribute(hConOut, &wButtonColor,
1, foregLoc, &dwCharsWritten);
PERR(bSuccess, "WriteConsoleOutputAttribute");
bForeground = TRUE; /* the 'foreground' button is 'highlighted' */
/* construct the attribute string */
for (i = 0; i < MAXCOLORS; i++)
/* for each set of two, the color attributes are in the high byte */
/* of the word - shift them into the high byte */
szAttr[i * 2] = szAttr[(i * 2) + 1] = i << 4;
/* write out the attributes at the colorbar location */
dwBufCoord = colorbarLoc;
bSuccess = WriteConsoleOutputAttribute(hConOut, szAttr, MAXCOLORS * 2,
dwBufCoord, &dwCharsWritten);
PERR(bSuccess, "WriteConsoleOutputAttribute");
/* put up a sample text area */
p = szSampText;
wCurPos = sampleLoc;
wCurSampAttr = BACKGROUND_WHITE;
for (i = 0; i < SAMPTEXTY; i++)
{
bSuccess = WriteConsoleOutputCharacter(hConOut, p,
min(strlen(p), SAMPTEXTX), wCurPos, &dwCharsWritten);
PERR(bSuccess, "WriteConsoleOutputCharacter");
/* color the text with the current sample attribute */
bSuccess = FillConsoleOutputAttribute(hConOut, wCurSampAttr, SAMPTEXTX,
wCurPos, &dwCharsWritten);
PERR(bSuccess, "FillConsoleOutputAttribute");
wCurPos.Y++;
/* advance pointer to the next row of characters in the sample string */
p += min(strlen(p), SAMPTEXTX);
}
hStdIn = GetStdHandle(STD_INPUT_HANDLE);
PERR(hStdIn != INVALID_HANDLE_VALUE, "GetStdHandle");
for(;;)
{
/* get an input event */
bSuccess = ReadConsoleInput(hStdIn, &inputBuf, 1, &cInputEvents);
/* if it's a mouse event but not a mouse move, it's a click */
PERR(bSuccess, "ReadConsoleInput");
if (inputBuf.EventType == MOUSE_EVENT &&
inputBuf.Event.MouseEvent.dwEventFlags != MOUSE_MOVED)
{
wCurPos = inputBuf.Event.MouseEvent.dwMousePosition;
/* is the mouse on the 'foreground' button? */
if (wCurPos.X == foregLoc.X && wCurPos.Y == foregLoc.Y)
{
bForeground = TRUE;
/* recolor the background color and foreground color */
/* of the foreground to show the foreground button active */
wButtonColor = BACKGROUND_WHITE;
bSuccess = WriteConsoleOutputAttribute(hConOut, &wButtonColor,
1, foregLoc, &dwCharsWritten);
PERR(bSuccess, "WriteConsoleOutputAttribute");
/* recolor the background color to show as inactive */
wButtonColor = FOREGROUND_WHITE | BACKGROUND_WHITE;
bSuccess = WriteConsoleOutputAttribute(hConOut, &wButtonColor,
1, backgLoc, &dwCharsWritten);
PERR(bSuccess, "WriteConsoleOutputAttribute");
}
/* is the mouse on the 'background' button? */
if (wCurPos.X == backgLoc.X && wCurPos.Y == backgLoc.Y)
{
bForeground = FALSE;
/* recolor the background button to show as active */
wButtonColor = BACKGROUND_WHITE;
bSuccess = WriteConsoleOutputAttribute(hConOut, &wButtonColor,
1, backgLoc, &dwCharsWritten);
PERR(bSuccess, "WriteConsoleOutputAttribute");
/* recolor the foreground button to show as inactive */
wButtonColor = FOREGROUND_WHITE | BACKGROUND_WHITE;
bSuccess = WriteConsoleOutputAttribute(hConOut, &wButtonColor,
1, foregLoc, &dwCharsWritten);
PERR(bSuccess, "WriteConsoleOutputAttribute");
}
/* is the mouse on the 'OK' button? */
if (wCurPos.X == okLoc.X && wCurPos.Y == okLoc.Y)
break;
/* is the mouse in the colorbar? */
if (wCurPos.Y == colorbarLoc.Y && wCurPos.X >= colorbarLoc.X &&
wCurPos.X < colorbarLoc.X + (SHORT) (MAXCOLORS * 2))
{
/* get the screen attribute at the mouse position */
bSuccess = ReadConsoleOutputAttribute(hConOut, &wButtonColor,
sizeof(wButtonColor), wCurPos, &dwCharsWritten);
PERR(bSuccess, "ReadConsoleOutputAttribute");
/* if the foreground button is active, set the foreground */
/* attribute for the sample text */
if (bForeground)
/* mask off the foreground color and 'or' it with the color */
/* we just got from the screen, shifted up to make it a */
/* foreground color (it's actually a background attribute when */
/* read from the console buffer). */
wCurSampAttr = (wCurSampAttr & (WORD) 0xF0) | (wButtonColor >> 4);
/* otherwise set the background attribute for the sample text */
else
/* mask off the background color and 'or' it with the background */
/* color we just read from the console. */
wCurSampAttr = (wCurSampAttr & (WORD) 0x0F) | wButtonColor;
/* now set the attribute of the sample text to the new attribute */
wCurPos = sampleLoc;
for (i = 0; i < SAMPTEXTY; i++)
{
bSuccess = FillConsoleOutputAttribute(hConOut, wCurSampAttr,
SAMPTEXTX, wCurPos, &dwCharsWritten);
PERR(bSuccess, "FillConsoleOutputAttribute");
wCurPos.Y++;
}
} /* if */
} /* if */
} /* while */
return;
}