JNIEXPORT void JNICALL Java_org_netbeans_installer_utils_system_windows_WindowsRegistry_deleteKey0()

in src/main/cpp/jnilib/windows/src/jni_WindowsRegistry.c [293:331]

• 35 lines of code
• 8 McCabe index (conditional complexity)

JNIEXPORT void JNICALL Java_org_netbeans_installer_utils_system_windows_WindowsRegistry_deleteKey0(JNIEnv *jEnv, jobject jObject, jint jMode, jint jSection, jstring jParent, jstring jChild) {
    HKEY  hkey       = 0;
    unsigned short* jParentS = getWideChars(jEnv, jParent);
    unsigned short* jChildS  = getWideChars(jEnv, jChild);
    
    
    if (RegOpenKeyExW(getHKEY(jSection), jParentS, 0, KEY_READ | KEY_WRITE | getMode(jMode), &hkey) == ERROR_SUCCESS) {
	LONG mode = getMode(jMode);
	if(mode==0) {
            if (RegDeleteKeyW(hkey, jChildS) != ERROR_SUCCESS) {
                throwException(jEnv, "Could not delete key");
	    }
        } else {
             typedef LONG (WINAPI *LPFN_REGDELETEKEYEXW) (HKEY, LPCWSTR, REGSAM, DWORD);
             LPFN_REGDELETEKEYEXW regDeleteKeyExW;
             HMODULE hModule = GetModuleHandle(TEXT("advapi32.dll"));
             if(hModule == NULL) {
                 hModule = LoadLibraryA("advapi32.dll");
             }
             regDeleteKeyExW = (LPFN_REGDELETEKEYEXW) GetProcAddress(hModule,"RegDeleteKeyExW");
             if (NULL != regDeleteKeyExW) {
                 if (regDeleteKeyExW(hkey, jChildS, mode, 0) != ERROR_SUCCESS) {
     		    throwException(jEnv, "Could not delete key");
                 }
             } else {
                    throwException(jEnv, "Cannot load function RegDeleteKeyExW");
             }
        }
    } else {
        throwException(jEnv, "Could not open the parent key");
    }
    
    if (hkey != 0) {
        RegCloseKey(hkey);
    }
    
    FREE(jParentS);
    FREE(jChildS);
}