pub unsafe extern "C" fn GDALCreateGenImgProjTransformer(
hSrcDS: GDALDatasetH,
pszSrcWKT: *const c_char,
hDstDS: GDALDatasetH,
pszDstWKT: *const c_char,
bGCPUseOK: c_int,
dfGCPErrorThreshold: f64,
nOrder: c_int,
) -> *mut c_void