隐藏光标/变形鼠标 (SDL 1.3)

发布于 2024-10-17 13:22:22 字数 465 浏览 8 评论 0原文

我无法使用 SDL（正确）隐藏鼠标光标。我正在使用 Ubuntu 10.10，并且一直在使用以下内容：

SDL_ShowCursor( SDL_DISABLE ); 
SDL_WarpMouse( x, y );

两者都无法正常运行；它看起来没有视觉效果，但是正如文档所述，有一个触发的鼠标运动事件，但鼠标不会在屏幕上移动或消失。

SDL 窗口是使用标志 SDL_WINDOW_OPENGL | 创建的（通过 SDL_CreateWindow）。 SDL_WINDOW_SHOWN。全屏对结果没有影响。

在全屏模式下以低分辨率（例如 640x480）运行窗口，确实可以提供命令所需的效果；但光标会从下面的窗口中渗透出来。在 1024x768 左右，它有一个完全不同的光标图标。当我的分辨率越来越高时，它就不再渗透，就像一个窗口（Gnome 光标）一样。上述命令没有任何效果。

有什么想法吗？

原文

I've been unable to hide the mouse cursor (properly) using SDL. I am using Ubuntu 10.10 and have been using the following:

SDL_ShowCursor( SDL_DISABLE ); 
SDL_WarpMouse( x, y );

Neither of which function properly at all; it would appear to have no visual effect, there is however a triggered mouse motion event as the documentation states, but the mouse does not move in any or disappear on screen.

The SDL Window is created (via SDL_CreateWindow) with the flags SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN. Fullscreen has no effect on the outcome.

Running the window at low resolutions in fullscreen mode (such as 640x480), does provide the desired effect of the commands; but the cursor bleeds through from the underlying windows.
Around 1024x768, it has a completely different cursor icon.
As I get higher in resolution, it stops bleeding through and just acts as though its a window (the Gnome cursor). With no effect of above commands.

Any ideas?

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在梵高的星空下 2024-10-24 13:22:22

我知道这个问题很老了，但它仍然是现实的。

解决方法如下：

在你想隐藏光标的地方写下：

SDL_Cursor *cursor; /* Make this variable visible in the point
                       where you exit the program */
int32_t cursorData[2] = {0, 0};
cursor = SDL_CreateCursor((Uint8 *)cursorData, (Uint8 *)cursorData, 8, 8, 4, 4);
SDL_SetCursor(cursor);

在你退出程序的地方：

SDL_FreeCursor(cursor);

I know this question is old, but it's still actual.

Here's the solution:

Where you want to hide the cursor, write this:

SDL_Cursor *cursor; /* Make this variable visible in the point
                       where you exit the program */
int32_t cursorData[2] = {0, 0};
cursor = SDL_CreateCursor((Uint8 *)cursorData, (Uint8 *)cursorData, 8, 8, 4, 4);
SDL_SetCursor(cursor);

Where you exit the program: