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SDL_windowsmouse.c: Fix WIN_CreateCursor does not scale with system cursor size preference

This commit is contained in:
Yufei Huang 2021-11-08 20:34:20 +08:00 committed by Sam Lantinga
parent f61b10dcf1
commit 301819cd1d
1 changed files with 12 additions and 2 deletions
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14
src/video/windows/SDL_windowsmouse.c
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@ -96,6 +96,7 @@ WIN_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y)
const size_t pad = (sizeof (size_t) * 8); /* 32 or 64, or whatever. */ const size_t pad = (sizeof (size_t) * 8); /* 32 or 64, or whatever. */
SDL_Cursor *cursor; SDL_Cursor *cursor;
HICON hicon; HICON hicon;
HICON hcursor;
HDC hdc; HDC hdc;
BITMAPV4HEADER bmh; BITMAPV4HEADER bmh;
LPVOID pixels; LPVOID pixels;
@ -150,11 +151,20 @@ WIN_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y)
return NULL; return NULL;
} }
/* The cursor returned by CreateIconIndirect does not respect system cursor size
preference, use CopyImage to duplicate the cursor with desired sizes */
hcursor = CopyImage(hicon, IMAGE_CURSOR, 0, 0, LR_COPYDELETEORG | LR_DEFAULTSIZE);
if (!hcursor) {
DestroyIcon(hicon);
WIN_SetError("CopyImage()");
return NULL;
}
cursor = SDL_calloc(1, sizeof(*cursor)); cursor = SDL_calloc(1, sizeof(*cursor));
if (cursor) { if (cursor) {
cursor->driverdata = hicon; cursor->driverdata = hcursor;
} else { } else {
DestroyIcon(hicon); DestroyIcon(hcursor);
SDL_OutOfMemory(); SDL_OutOfMemory();
} }