On Wed, Apr 16 2025 at 05:38:27 PM +0000, Peter Harris <peter at harr.ca> wrote: > All the fields should be uint32_t. "long" is not always 32 bits in > size. Thank you, I thought, but didn't know. Assuming those members and uint32_t known, should I use r0->atom or XCB_ATOM_CARDINAL once I alter the structure? for type. Steve