C# Signature:
[DllImport("kernel32.dll", SetLastError = true)]
static extern bool SetConsoleScreenBufferInfoEx(
IntPtr ConsoleOutput,
CONSOLE_SCREEN_BUFFER_INFO_EX ConsoleScreenBufferInfoEx
);
VB Signature:
Declare Function SetConsoleScreenBufferInfoEx Lib "kernel32.dll" (TODO) As TODO
User-Defined Types:
[StructLayout(LayoutKind.Sequential)]
public struct CONSOLE_SCREEN_BUFFER_INFO_EX
{
public uint cbSize;
public COORD dwSize;
public COORD dwCursorPosition;
public short wAttributes;
public SMALL_RECT srWindow;
public COORD dwMaximumWindowSize;
public ushort wPopupAttributes;
public bool bFullscreenSupported;
// Hack Hack Hack
// Too lazy to figure out the array at the moment...
//public COLORREF[16] ColorTable;
public COLORREF color0;
public COLORREF color1;
public COLORREF color2;
public COLORREF color3;
public COLORREF color4;
public COLORREF color5;
public COLORREF color6;
public COLORREF color7;
public COLORREF color8;
public COLORREF color9;
public COLORREF colorA;
public COLORREF colorB;
public COLORREF colorC;
public COLORREF colorD;
public COLORREF colorE;
public COLORREF colorF;
}
Alternative Managed API:
Do you know one? Please contribute it!
Notes:
// Untested, added during 1-pass copy & paste of windows console fuctions
Tips & Tricks:
Please add some!
Sample Code:
// 
Alex Shvedov
// Use this code in any way you want
using System;
using System.Diagnostics; // for Debug
using System.Drawing; // for Color (add reference to System.Drawing assembly)
using System.Runtime.InteropServices; // for StructLayout
internal class SetScreenColorsDemo {
[StructLayout(LayoutKind.Sequential)]
internal struct COORD {
internal short X;
internal short Y;
}
[StructLayout(LayoutKind.Sequential)]
internal struct SMALL_RECT {
internal short Left;
internal short Top;
internal short Right;
internal short Bottom;
}
[StructLayout(LayoutKind.Sequential)]
internal struct COLORREF {
internal uint ColorDWORD;
internal COLORREF(Color color) {
ColorDWORD = (uint)color.R + (((uint)color.G) << 8) + (((uint)color.B) << 16);
}
internal Color GetColor() {
return Color.FromArgb((int)(0x000000FFU & ColorDWORD),
(int)(0x0000FF00U & ColorDWORD) >> 8, (int)(0x00FF0000U & ColorDWORD) >> 16);
}
internal void SetColor(Color color) {
ColorDWORD = (uint)color.R + (((uint)color.G) << 8) + (((uint)color.B) << 16);
}
}
[StructLayout(LayoutKind.Sequential)]
internal struct CONSOLE_SCREEN_BUFFER_INFO_EX {
internal int cbSize;
internal COORD dwSize;
internal COORD dwCursorPosition;
internal ushort wAttributes;
internal SMALL_RECT srWindow;
internal COORD dwMaximumWindowSize;
internal ushort wPopupAttributes;
internal bool bFullscreenSupported;
internal COLORREF screenBackgroundColor;
internal COLORREF color1;
internal COLORREF color2;
internal COLORREF color3;
internal COLORREF color4;
internal COLORREF color5;
internal COLORREF color6;
internal COLORREF screenTextColor;
internal COLORREF color8;
internal COLORREF color9;
internal COLORREF colorA;
internal COLORREF colorB;
internal COLORREF colorC;
internal COLORREF colorD;
internal COLORREF colorE;
internal COLORREF colorF;
}
const int STD_OUTPUT_HANDLE = -11; // per WinBase.h
internal static readonly IntPtr INVALID_HANDLE_VALUE = new IntPtr(-1); // per WinBase.h
[DllImport("kernel32.dll", SetLastError = true)]
private static extern IntPtr GetStdHandle(int nStdHandle);
[DllImport("kernel32.dll", SetLastError = true)]
private static extern bool GetConsoleScreenBufferInfoEx(IntPtr hConsoleOutput, ref CONSOLE_SCREEN_BUFFER_INFO_EX csbe);
[DllImport("kernel32.dll", SetLastError = true)]
private static extern bool SetConsoleScreenBufferInfoEx(IntPtr hConsoleOutput, ref CONSOLE_SCREEN_BUFFER_INFO_EX csbe);
/*** C prototype:
#include <Windows.h>
#include <stdio.h>
//#include <conio.h> // for _getch()
int wmain() {
CONSOLE_SCREEN_BUFFER_INFOEX info;
info.cbSize = sizeof(info);
HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
GetConsoleScreenBufferInfoEx(hConsole, &info);
// info.ColorTable[0] - "Screen Background" color
// info.ColorTable[7] - "Screen Text" color
info.ColorTable[0] = RGB(0, 0, 200);
info.ColorTable[7] = RGB(200, 200, 0);
++info.srWindow.Bottom; // reasons for these is unknown
++info.srWindow.Right;
SetConsoleScreenBufferInfoEx(hConsole, &info);
puts("Press ENTER to exit...");
char bbb[100];
gets_s(bbb);
return 0;
}
*/
public static int SetScreenColors(Color screenTextColor, Color screenBackgroundColor) {
CONSOLE_SCREEN_BUFFER_INFO_EX csbe = new CONSOLE_SCREEN_BUFFER_INFO_EX();
csbe.cbSize = (int)Marshal.SizeOf(csbe); // 96 = 0x60
IntPtr hConsoleOutput = GetStdHandle(STD_OUTPUT_HANDLE); // 7
if(hConsoleOutput == INVALID_HANDLE_VALUE) {
return Marshal.GetLastWin32Error();
}
bool brc = GetConsoleScreenBufferInfoEx(hConsoleOutput, ref csbe);
if(!brc) {
return Marshal.GetLastWin32Error();
}
csbe.screenTextColor.SetColor(screenTextColor);
csbe.screenBackgroundColor.SetColor(screenBackgroundColor);
++csbe.srWindow.Bottom;
++csbe.srWindow.Right;
brc = SetConsoleScreenBufferInfoEx(hConsoleOutput, ref csbe);
if(!brc) {
return Marshal.GetLastWin32Error();
}
return 0;
}
private static void Main(string[] args) {
Color screenTextColor = Color.Red;
Color screenBackgroundColor = Color.Blue;
int irc = SetScreenColors(screenTextColor, screenBackgroundColor);
Debug.Assert(irc == 0, "SetScreenColors failed, Win32Error code = " + irc + " = 0x" + irc.ToString("x"));
Debug.WriteLine("LargestWindowHeight=" + Console.LargestWindowHeight + " LargestWindowWidth=" + Console.LargestWindowWidth);
Debug.WriteLine("BufferHeight=" + Console.BufferHeight + " WindowHeight=" + Console.WindowHeight + " BufferWidth=" + Console.BufferWidth + " WindowWidth=" + Console.WindowWidth);
//// these are relative to the buffer, not the screen:
//Debug.WriteLine("WindowTop=" + Console.WindowTop + " WindowLeft=" + Console.WindowLeft);
Debug.WriteLine("ForegroundColor=" + Console.ForegroundColor + " BackgroundColor=" + Console.BackgroundColor);
Console.WriteLine("Some text in a console window");
Console.BackgroundColor = ConsoleColor.Cyan;
Console.ForegroundColor = ConsoleColor.Yellow;
Debug.WriteLine("ForegroundColor=" + Console.ForegroundColor + " BackgroundColor=" + Console.BackgroundColor);
Console.Write("Press ENTER to exit...");
Console.ReadLine();
}
}
