C语言中的getmaxy()函数

头文件graphics.h包含getmaxy()函数，该函数返回当前图形模式和驱动程序的最大Y坐标。
句法 ：

int getmaxy();

下面是getmaxy()函数：

// C Implementation for getmaxy()
#include 
#include 
  
// driver code
int main()
{
    // gm is Graphics mode which is
    // a computer display mode that
    // generates image using pixels.
    // DETECT is a macro defined in
    // "graphics.h" header file
    int gd = DETECT, gm;
    char arr[100];
  
    // initgraph initializes the
    // graphics system by loading a
    // graphics driver from disk
    initgraph(&gd, &gm, "");
  
    // sprintf stands for “String print”.
    // Instead of printing on console, it
    // store output on char buffer which
    // are specified in sprintf
    sprintf(arr, "Maximum Y coordinate for current "
        "graphics mode And driver = %d", getmaxy());
  
    // outtext function displays text at
    // current position.
    outtext(arr);
  
    getch();
  
    // closegraph function closes the
    // graphics mode and deallocates
    // all memory allocated by
    // graphics system .
    closegraph();
  
    return 0;
}

输出 ：

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