Graphics learned from jigsaw puzzles h

Recently, with C Language to do a puzzle game to use graohic.h Graphics library , Then I summarized some functions involved in my program .（ I'm cute , No joy, no spray. ）

One .Graphics.h

First , Now let me remind you .（ According to my recent experience of stepping on the pit ）

1. stay vc And vs Use in the environment graphics.h The function of Can download EasyX Graphics library
（ Be careful ： This is a C++ The graphics library of If you have to C Language environment graphics.h You can use windows gdi））

2. I believe some friends use Dev-C++ Compiler , But after downloading EasyX The graphics library is still useless （ I'm crazy, too , Found many blogs ）

The final reason is ：easyx Currently not supported dev-c++. because dev-c Use gcc, Some precompiled instructions are missing , So every time you create a project, you must reference the library , More trouble , Not friendly enough for many beginners , Therefore, we do not support .

Next is the text （ Mainly to understand some functions ）
The first is the basic construction ：
initgraph(int x,int y,);
// Initialize the graphics system （ It can be understood as re creating a new window ） Among them x、y Represents the width and height of the window respectively .
closegraph();
// close window
rectangle（x1,y1,x2,y2）;
// Building a hollow rectangle ,x1,y1 Top left coordinates ,x2,y2 Lower right coordinates
line(x1,y1,x2,y2);
// Build a line . The parameters are the coordinates of both ends
The second is the basic settings
setbkcolor()： Set the background color , Parameter color .
setfillcolor()： Set the color used to fill the drawing form
setlinecolor()： Set the line color
settextcolor()： Set text color （ My understanding is to set the font color ）

set（ Set up ）、color（ Color ）、bk（ background ）、fill（ fill ）、line（ line ）、text（ Text ） After understanding , These functions are actually easy to remember .
The above is mainly about setting some colors , Available when setting colors RGB（a,b,c） Express , You can also use color directly in brackets Capital letters Express , Color macro .

setfillstyle();
// Set the fill pattern , Such as vertical line , Horizontal line , Square filling .
setlinestyle();
// Set the fill pattern of the line
setbkmode();
// pattern , Or text filled background mode （ Background color , transparent ）.

Then there is the output
outtextxy(x,y,str);
// stay x,y Position output string str

The plot
IMAGE img;
loadimage(&img,path[, width, height]);
// Image reading .IMAGE Object address , route . Extension parameters , Width and height have been set , Stretch read .
putimage(x,y,&img);
// Display images . The display starts at the coordinates of the upper left corner of the graphics window img graphics .
putimage(int x,int y,int width,int height,&img,int posx,int posy);
// Display images . Compared with the above ,w,h For how many pixels of graphics to display ,x,y by img The object is displayed from this position （ That is, to which position in the window , The width of the graph taken , The height taken , From where in the picture ）

Finally, the mouse operation
1. Define mouse messages （MOUSEMSG m;）
2. Get mouse message (m=GETMouseMsg();）
3. Sort and process mouse messages
(switch(m.uMsg)
{
case WM_LBUTTONDOWN:
break;
}
)