Q104094: INFO: Console Applications Can Call the Windows 32-Bit API
Article: Q104094
Product(s): Microsoft C Compiler
Version(s): 1.0,2.0,2.1,4.0,5.0,6.0
Operating System(s):
Keyword(s): kbGenInfo kbVC100 kbVC200 kbVC210 kbVC400 kbVC500 kbVC600 kbArtTypeINF
Last Modified: 11-DEC-2001
-------------------------------------------------------------------------------
The information in this article applies to:
- Microsoft Visual C++, 32-bit Editions, versions 1.0, 2.0, 2.1, 4.0, 5.0, 6.0
-------------------------------------------------------------------------------
SUMMARY
=======
With a Win32-based console application, you can call the functions in the Win32
application programming interface (API).
MORE INFORMATION
================
Because GRAPHICS.LIB and PGCHART.LIB do not ship with Visual C++, 32-bit
Edition, the API functions can be used for graphical output or screen
manipulation.
The following console sample illustrates how to use the API to change the
background color of output to the screen. For further examples of console
applications included with Visual C++ version 4.0, 5.0, and 6.0, see the CONGUI
and CONSOLE sample programs in the \MSDEV\SAMPLES\SDK\WIN32 directory, or online
help in versions 5.0 and 6.0. For examples of console applications included with
Visual C++ versions 1.0 and 2.x, see the CONGUI, CONSOLE, CONSOLEC, and INHERIT
sample programs in the \MSVCNT\SAMPLES directory.
Sample Code
-----------
/* Compile options needed: None
*/
#include <windows.h>
#include <stdio.h>
int main( void )
{
HANDLE hConsole;
WORD ForeColor = 0;
WORD BackColor;
WORD wAttributesOld;
CONSOLE_SCREEN_BUFFER_INFO csbi;
// ** Open the current console input buffer.
if( ( hConsole = CreateFile(
"CONOUT$", GENERIC_WRITE | GENERIC_READ,
FILE_SHARE_READ | FILE_SHARE_WRITE,
0L, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0L) )
== (HANDLE) -1 ) {
printf("\nError: Unable to open console.\n");
return( -1 );
}
printf("\n");
// ** Get and Save information on the console screen buffer.
GetConsoleScreenBufferInfo( hConsole, &csbi );
wAttributesOld = csbi.wAttributes;
// ** Display different backgrounds.
for( BackColor = 0; BackColor < 8 ; BackColor++ ) {
SetConsoleTextAttribute( hConsole, (WORD) ( (BackColor << 4) |
ForeColor) );
printf(" XxXxXx ");
}
// ** Restore the foreground and background color attribute.
SetConsoleTextAttribute( hConsole, wAttributesOld );
return 1;
}
Additional query words: 8.00 9.00
======================================================================
Keywords : kbGenInfo kbVC100 kbVC200 kbVC210 kbVC400 kbVC500 kbVC600 kbArtTypeINF
Technology : kbVCsearch kbVC400 kbAudDeveloper kbvc100 kbVC500 kbVC600 kbVC200 kbVC210 kbVC32bitSearch kbVC500Search
Version : :1.0,2.0,2.1,4.0,5.0,6.0
Issue type : kbinfo
=============================================================================
THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.
Copyright Microsoft Corporation 1986-2002.