c:graphics.h:setviewport
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c:graphics.h:setviewport [2013/02/03 19:11] 127.0.0.1 external edit |
c:graphics.h:setviewport [2024/02/16 01:05] (current) |
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| - | ====== setviewport ====== | + | ===== setviewport ===== |
| - | <code c> | + | |
| + | |||
| + | ====Syntax of setviewport ==== | ||
| + | <code c> | ||
| + | #include <graphics.h> | ||
| + | void setviewport(int left, int top, int right, int bottom, int clip); | ||
| + | </code> | ||
| + | |||
| + | |||
| + | ==== Description of setviewport ==== | ||
| + | <code c> | ||
| + | setviewport establishes a new viewport for graphics output. | ||
| + | The viewport corners are given in absolute screen coordinates by | ||
| + | (left,top) and (right,bottom). The current position (CP) is moved to | ||
| + | (0,0) in the new window. | ||
| + | The parameter clip determines whether drawings are clipped (truncated) at | ||
| + | the current viewport boundaries. If clip is nonzero, all drawings will be | ||
| + | clipped to the current viewport. | ||
| </code> | </code> | ||
| - | ==== description of setviewport ==== | ||
| - | setviewport is in work by code-reference.com \\ | ||
| - | if you are faster... don't hasitate and add it | ||
| + | ==== Example of setviewport ==== | ||
| <code c> | <code c> | ||
| - | no example at the moment | + | /* setviewport example */ |
| + | |||
| + | #include <graphics.h> | ||
| + | #include <stdlib.h> | ||
| + | #include <stdio.h> | ||
| + | #include <conio.h> | ||
| + | |||
| + | #define CLIP_ON 1/* activates clipping in viewport */ | ||
| + | |||
| + | int main(void) | ||
| + | { | ||
| + | /* request autodetection */ | ||
| + | int gdriver = DETECT, gmode, errorcode; | ||
| + | |||
| + | |||
| + | /* initialize graphics and local variables */ | ||
| + | initgraph(&gdriver, &gmode, ""); | ||
| + | |||
| + | /* read result of initialization */ | ||
| + | errorcode = graphresult(); | ||
| + | if (errorcode != grOk) /* an error occurred */ | ||
| + | { | ||
| + | printf("Graphics error: %s\n", grapherrormsg(errorcode)); | ||
| + | |||
| + | printf("Press any key to halt:"); | ||
| + | getch(); | ||
| + | exit(1); /* terminate with an error code */ | ||
| + | } | ||
| + | |||
| + | setcolor(getmaxcolor()); | ||
| + | |||
| + | /* message in default full-screen viewport */ | ||
| + | outtextxy(0, 0, "* <-- (0, 0) in default viewport"); | ||
| + | |||
| + | /* create a smaller viewport */ | ||
| + | setviewport(50, 50, getmaxx()-50, getmaxy()-50, CLIP_ON); | ||
| + | |||
| + | /* display some text */ | ||
| + | outtextxy(0, 0, "* <-- (0, 0) in smaller viewport"); | ||
| + | |||
| + | /* clean up */ | ||
| + | getch(); | ||
| + | |||
| + | closegraph(); | ||
| + | return 0; | ||
| + | } | ||
| </code> | </code> | ||
| - | ===== output of setviewport c example ===== | + | |
| - | no example at the moment | + | ==== See also ==== |
| + | [[clearviewport]] | ||
| + | [[getviewsettings]] | ||
| + | [[graphresult]] | ||
| + | |||
| + | |||
| + | ===== output of setviewport example ===== | ||
| + | |||
| + | no output of example at the moment | ||
| + | do not hesitate and add it... | ||
| + | |||
on the occasion of the current invasion of Russia in Ukraine
c/graphics.h/setviewport.1359915101.txt · Last modified: 2024/02/16 01:03 (external edit)
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