Change Mouse Cursor

[LesPaul75]

I know this has to be an easy one, but I simply can't find anything helpful in the forum or elsewhere. I'm overlooking something.

I just want to change the mouse cursor to a custom image -- say a 32x32 PNG or whatever. I see that tutorial 24 does this, but it's very confusing to me. I don't need an animated cursor and I don't need a "bank" of cursors. I think the "bank" is what is causing me the most grief... and the difference between a "sprite" and an "icon" and a "cursor" and a "cursor sprite" is a little confusing.

I only want to change the primary arrow cursor. Is there a simple way to do this?

[hendu]

If you don't want to change the hw cursor, you can always go sw.

ie: hide the OS cursor, draw your own using draw2DImage.

[hybrid]

Example 6 has an example of how to render sw cursors, just as hendu suggests.

[LesPaul75]

Ok, but suppose I do want to change the HW cursor? I'm just looking to write simple function, e.g.:

Code: Select all

void change_mouse_cursor(const string &image_filename, irr::core::vector2di hotspot)
{
   // ... load the image into a sprite (or something?)
   // ... set the hotspot and whatever else
   // ... replace the main arrow cursor
}

I will also look into the SW cursor example, though, thanks.

[LesPaul75]

Any idea why my SW approach doesn't work? I took this from tutorial 6.

Code: Select all

    irr::video::ITexture* tex = driver->getTexture("E:\\Projects\\shmup-1\\test_cursor.png");
    driver->draw2DImage(tex, device->getCursorControl()->getPosition());

I have verified that "tex" is not null, which I guess means that the texture loaded properly. There is no error message, but nothing is drawn. I also verified that nothing is overlapping (in front of) the cursor, etc...

I also tried draw2DRectangle() and it doesn't draw anything, either.

[Seven]

When are you rendering? Maybe paste a short test program

[LesPaul75]

When are you rendering?

Yep, that was exactly the problem. I was doing it outside the begin/end scene calls.

Thanks for the help.

[CuteAlien]

You don't get around creating a spritebank. But you can use the AddIconToSpriteBank function from the example if you want a non-animated cursor. It takes the name of your texture and the rectangle inside that texture where your cursor is. And ICursorControl::changeIcon can then be used to set the cursor you want to change to that new icon.