C Language Console window graphic interface Programming four common text output functions

Text color attributes have been learned, then learn a few more commonly used text output functions, as follows:

BOOL Fillconsoleoutputattribute (    //Fill character Properties    
HANDLE Hconsoleoutput,              //Handle    
word wattribute,                    //Text properties    
DWORD nlength,                      //number    
COORD Dwwritecoord,                 //Start position    
Lpdword Lpnumberofattrswritten      // Returns the number of fills    
);    
BOOL Fillconsoleoutputcharacter (    ///fill the specified data character    
HANDLE hconsoleoutput,              //Handle    
TCHAR Ccharacter,                   //Character    
DWORD nlength,//                      number of characters    
COORD Dwwritecoord,                 //Start position    
Lpdword Lpnumberofcharswritten      //write number    
);    
BOOL Writeconsoleoutputcharacter (   //Inserts a specified number of characters at a specified position    
HANDLE hconsoleoutput,              //Handle    
LPCTSTR Lpcharacter,                //String    
DWORD nlength,//                      number of characters    
COORD Dwwritecoord,                 //start position    
Lpdword Lpnumberofcharswritten      //written number    
);

In addition a structural body of the expression area is introduced, as follows:

The typedef struct _SMALL_RECT  //Represents the structural body of the rectangular region {short left    
  ;       The left side of short top    
  ;        Upper border short right    
  ;      Right border short    
  Bottom;     Lower boundary    
} small_rect;    
/* Microsoft's official statement is the x-coordinate of the lower-right vertex of the y-coordinate of the top-left vertex of the upper-left vertex of the    left-hand region   
Bottom The  y-coordinate of the lower-right vertex of the area   

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With the above text output function, let's do a simple sample program that displays a string in a shaded window, as follows:

#include <stdio.h> #include <stdlib.h> #include <Windows.h> #include <conio.h>     int main () {char *str = "Hello world!";    
    Define output information int len = strlen (str), I;     WORD shadow = background_intensity; Shadow properties WORD Text = Background_green |    background_intensity;    Text attributes HANDLE handle_out = GetStdHandle (Std_output_handle);    Obtain the standard output device handle Console_screen_buffer_info csbi;  Defines the window buffer information structure body getconsolescreenbufferinfo (handle_out, &AMP;CSBI);      Obtain window buffer Information Small_rect RC;      Defines a text box output area COORD postext;    Defines the starting coordinates of a text box COORD Posshadow; Defines the starting coordinate of the shadow box//determines the boundary RC for the area.     top = 8; Upper boundary RC. Bottom = RC.     Top + 4; Lower boundary RC.    left = (csbi.dwsize.x-len)/2-2; The left edge, in order for the output string to be centered on the RC. right = RC.   Left + len + 4; Right boundary//OK text box starting coordinate postext.x = RC.    
    Left; POSTEXT.Y = RC.    
    Top; Determines the starting coordinate p of the shadow Boxosshadow.x = postext.x + 1;    
    POSSHADOW.Y = Postext.y + 1; For (i=0 i<5; ++i)//First output shadow box {Fillconsoleoutputattribute (Handle_out, shadow, Len + 4, Posshado    
        W, NULL);    
    posshadow.y++; For (i=0 i<5; ++i)//In the Output text box, where the part that overlaps with the shadow box is overwritten {Fillconsoleoutputattribute (handle_out    
        , text, Len + 4, Postext, NULL);    
    postext.y++; //Set the coordinates postext.x = RC at the text output.    
    Left + 2; POSTEXT.Y = RC.    
    Top + 2;   Writeconsoleoutputcharacter (Handle_out, str, Len, Postext, NULL);   Output string Setconsoletextattribute (Handle_out, csbi.wattributes);    
    Restores the original properties CloseHandle (Handle_out);    
return 0; }

The examples above are compiled in Code::Blocks 13.12.