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SDL Wiki

SDL_CreateColorCursor

Create a color cursor.

Syntax

SDL_Cursor* SDL_CreateColorCursor(SDL_Surface *surface,
                                  int hot_x,
                                  int hot_y);

Function Parameters

surface

an SDL_Surface structure representing the cursor image

hot_x

the x position of the cursor hot spot

hot_y

the y position of the cursor hot spot

Return Value

Returns the new cursor on success or NULL on failure; call SDL_GetError() for more information.

Version

This function is available since SDL 2.0.0.

Code Examples

#include "SDL.h"

int
main(int argc, char *argv[])
{
    SDL_Window *window = NULL;
    SDL_Renderer *renderer = NULL;
    SDL_Surface *surface = NULL;
    SDL_Cursor *cursor = NULL;
    SDL_bool error = SDL_TRUE;

    if (SDL_Init(SDL_INIT_VIDEO) < 0) {
        goto exit;
    }
    if (SDL_CreateWindowAndRenderer(640, 480, 0, &window, &renderer) < 0) {
        goto exit;
    }
    surface = SDL_LoadBMP((1 < argc) ? argv[1] : "cursor.bmp");
    if (!surface) {
        goto exit;
    }
    cursor = SDL_CreateColorCursor(surface, 0, 0);
    if (!cursor) {
        goto exit;
    }

    SDL_SetCursor(cursor);
    SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
    while (SDL_TRUE) {
        SDL_Event event;
        while (SDL_PollEvent(&event)) {
            switch (event.type) {
            case SDL_MOUSEBUTTONUP:
            case SDL_QUIT:
                error = SDL_FALSE;
                goto exit;
            }
        }
        SDL_RenderClear(renderer);
        SDL_RenderPresent(renderer);
    }

exit:
    if (error) {
        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "%s", SDL_GetError());
    }
    if (cursor) {
        SDL_FreeCursor(cursor);
    }
    if (surface) {
        SDL_FreeSurface(surface);
    }
    if (renderer) {
        SDL_DestroyRenderer(renderer);
    }
    if (window) {
        SDL_DestroyWindow(window);
    }
    SDL_Quit();
    return error;
}
SDL_CreateCursor
SDL_FreeCursor

CategoryAPI, CategoryMouse


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