# screen_write_fast_copy

- **Language:** C
- **Kind:** function
- **Source:** https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/screen-write.c#L617
- **Page:** https://libtmux.org/en/tmux/latest/reference/c-function-screen_write_fast_copy/

```c
void screen_write_fast_copy(struct screen_write_ctx *ctx, struct screen *src, u_int px, u_int py, u_int nx, u_int ny)
```

## Parameters

- `ctx` (`struct screen_write_ctx *`)
- `src` (`struct screen *`)
- `px` (`u_int`)
- `py` (`u_int`)
- `nx` (`u_int`)
- `ny` (`u_int`)

## Called by

- [`format_draw_centre`](/en/tmux/latest/reference/c-function-format-draw-c-format_draw_centre/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/format-draw.c#L372)
- [`format_draw_left`](/en/tmux/latest/reference/c-function-format-draw-c-format_draw_left/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/format-draw.c#L269)
- [`format_draw_put`](/en/tmux/latest/reference/c-function-format-draw-c-format_draw_put/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/format-draw.c#L119)
- [`format_draw_put_list`](/en/tmux/latest/reference/c-function-format-draw-c-format_draw_put_list/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/format-draw.c#L150)
- [`format_draw_right`](/en/tmux/latest/reference/c-function-format-draw-c-format_draw_right/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/format-draw.c#L480)
- [`popup_draw_cb`](/en/tmux/latest/reference/c-function-popup-c-popup_draw_cb/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/popup.c#L312)
- [`screen_write_preview`](/en/tmux/latest/reference/c-function-screen_write_preview/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/screen-write.c#L926)
- [`status_message_redraw`](/en/tmux/latest/reference/c-function-status_message_redraw/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/status.c#L653)
- [`status_prompt_redraw`](/en/tmux/latest/reference/c-function-status_prompt_redraw/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/status.c#L921)
- [`window_client_draw`](/en/tmux/latest/reference/c-function-window-client-c-window_client_draw/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/window-client.c#L199)

## Calls

- [`grid_get_cell`](/en/tmux/latest/reference/c-function-grid_get_cell/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/screen-write.c#L650)
- [`grid_get_line`](/en/tmux/latest/reference/c-function-grid_get_line/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/screen-write.c#L645)
- [`grid_view_set_cell`](/en/tmux/latest/reference/c-function-grid_view_set_cell/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/screen-write.c#L653)
- [`screen_redraw_get_visible_ranges`](/en/tmux/latest/reference/c-function-screen_redraw_get_visible_ranges/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/screen-write.c#L642)
- [`screen_redraw_is_visible`](/en/tmux/latest/reference/c-function-screen_redraw_is_visible/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/screen-write.c#L655)
- [`screen_write_initctx`](/en/tmux/latest/reference/c-function-screen-write-c-screen_write_initctx/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/screen-write.c#L641)
- [`tty_write`](/en/tmux/latest/reference/c-function-tty_write/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/screen-write.c#L659)

## Other function references

- [`tty_cmd_cell`](/en/tmux/latest/reference/c-function-tty_cmd_cell/) (function)

## Referenced declarations

- [`tty_ctx.cell`](/en/tmux/latest/reference/c-struct-tty_ctx-cell/) (attribute)
- [`grid_line.cellsize`](/en/tmux/latest/reference/c-struct-grid_line-cellsize/) (attribute)
- [`screen.cx`](/en/tmux/latest/reference/c-struct-screen-cx/) (attribute)
- [`screen.cy`](/en/tmux/latest/reference/c-struct-screen-cy/) (attribute)
- [`grid_cell.data`](/en/tmux/latest/reference/c-struct-grid_cell-data/) (attribute)
- [`tty_ctx.flags`](/en/tmux/latest/reference/c-struct-tty_ctx-flags/) (attribute)
- [`screen.grid`](/en/tmux/latest/reference/c-struct-screen-grid/) (attribute)
- [`grid.hsize`](/en/tmux/latest/reference/c-struct-grid-hsize/) (attribute)
- [`tty_ctx.ocx`](/en/tmux/latest/reference/c-struct-tty_ctx-ocx/) (attribute)
- [`screen_write_ctx.s`](/en/tmux/latest/reference/c-struct-screen_write_ctx-s/) (attribute)
- [`screen`](/en/tmux/latest/reference/c-struct-screen/) (struct)
- [`screen_write_ctx`](/en/tmux/latest/reference/c-struct-screen_write_ctx/) (struct)
- [`grid.sy`](/en/tmux/latest/reference/c-struct-grid-sy/) (attribute)
- [`TTY_CTX_OVERLAY_SYNC`](/en/tmux/latest/reference/c-define-tmux-h-tty_ctx_overlay_sync/) (constant)
- [`TTY_CTX_SYNC`](/en/tmux/latest/reference/c-define-tmux-h-tty_ctx_sync/) (constant)
- [`utf8_data.width`](/en/tmux/latest/reference/c-struct-utf8_data-width/) (attribute)
- [`screen_write_ctx.wp`](/en/tmux/latest/reference/c-struct-screen_write_ctx-wp/) (attribute)
- [`window_pane.xoff`](/en/tmux/latest/reference/c-struct-window_pane-xoff/) (attribute)
- [`window_pane.yoff`](/en/tmux/latest/reference/c-struct-window_pane-yoff/) (attribute)